Total 2,649 network engineer job vacancies

• Design, implement and manage enterprise LAN, WAN, data center and cloud network environments.
• Configure, maintain and troubleshoot routers, switches, firewalls, load balancers and network services.
• Provide expertise across routing, switching, connectivity and network architecture.
• Perform advanced troubleshooting and root cause analysis for complex network issues.
• Improve network availability, scalability, performance and resilience.

Skills/Requirement -

• Strong experience in enterprise network engineering.
• Strong hands-on experience with routing, switching and firewall technologies.
• Experience supporting large-scale production environments.
• Strong troubleshooting and incident management skills.

Role

Must Have

IT/OT Onsite Engineer

• Experience in integrating IT networks with OT systems.
• Working knowledge with handling OT assets - HMIs, PLCs, Scada, Sensors, Inspection machines (CMM, CNCs), 3D printers etc
• Experience in updating the required details in the PLC configuration, IP data
• Asset inventory data collection/Identify risks in advance and highlight.
• Familiarity with secure protocols (OPC-UA, Modbus TCP/IP, Ethernet/IP, SMB).
• Network design and implementation, including LAN/WAN, VLANs, and routing protocols.Good-To-Have
• Desired experience: 10+ years in IT/OT environments.
• Proficiency in configuring firewalls-checkpoint, SD WAN, switches, and routers (e.g., Cisco.
• Firewall rule configuration. Network Security Configuration and micro segmentation using VLAN, Switches and Network Taps config
• Certification:
• CCNA/CCNP (Cisco Certified Network Associate/Professional).
• CompTIA Network+ or equivalent.

Avensys is a reputed global IT professional services company headquartered in Singapore. Our service spectrum includes enterprise solution consulting, business intelligence, business process automation and managed services. Given our decade of success we have evolved to become one of the top trusted providers in Singapore and service a client base across banking and financial services, insurance, information technology, healthcare, retail, and supply chain.

Job Overview

The Senior Cloud Engineer is responsible for designing, implementing, managing, and optimizing enterprise cloud infrastructure across public, private, and hybrid cloud environments. The role provides technical leadership in cloud architecture, virtualization, infrastructure automation, security, and operational excellence. The incumbent will lead cloud transformation initiatives, ensure the availability and performance of enterprise platforms, and provide expert-level support for complex infrastructure environments. The role also involves mentoring engineers, driving best practices, and collaborating with stakeholders to deliver scalable, secure, and resilient cloud solutions aligned with business objectives.

Key Responsibilities:

• Design, implement, and manage enterprise-grade cloud solutions across public, private, and hybrid environments

• Optimize cloud resource utilization, performance, scalability, and cost efficiency - Implement cloud security best practices and ensure compliance with industry standards

• Develop and maintain Infrastructure as Code and automation frameworks - Provide Level 3 and escalation support for complex cloud infrastructure issues

• Architect and manage VMware vSphere environments including ESXi, vCenter, and distributed switches - Administer and troubleshoot VMware and Nutanix hypervisor platforms - Manage virtual machine provisioning, migration, upgrades, and decommissioning

• Perform advanced troubleshooting of virtualization and cloud infrastructure issues - Optimize virtual machine performance and resource allocation

• Implement and maintain disaster recovery and business continuity solutions

• Lead capacity planning and infrastructure scaling initiatives - Provide expert-level support for Windows Server environments

• Install, configure, and manage Windows Server services including IIS and SQL Server - Administer Active Directory, Group Policy, DNS, DHCP, and identity management solutions

• Implement security hardening, vulnerability remediation, and patch management strategies - Troubleshoot complex issues across cloud and on-premises environments - Monitor system health, availability, and performance across enterprise platforms

• Implement proactive measures to improve system reliability and operational efficiency

• Conduct root cause analysis and implement preventive solutions - Manage incidents, problems, and changes in accordance with ITSM processes

• Ensure adherence to service-level agreements and operational standards - Participate in on-call support rotation for critical cloud services

• Plan and implement backup, restore, and disaster recovery strategies - Ensure high availability and continuous business operations

• Gather business and application requirements and perform cloud infrastructure design and analysis - Lead the design, testing, and implementation of cloud solutions aligned with technical specifications - Participate in cloud architecture reviews and technical design discussions

• Evaluate emerging cloud technologies and recommend adoption strategies - Lead cloud transformation and infrastructure modernization initiatives

• Collaborate with cross-functional teams to deliver integrated enterprise solutions - Provide technical consultation and advisory services to stakeholders and project teams - Develop and maintain technical documentation, SOPs, architecture diagrams, and cloud configurations

• Establish and enforce cloud governance, security standards, and best practices - Provide regular reporting on cloud health, performance, utilization, risks, and project status - Lead cloud migration, optimization, and platform enhancement projects

• Mentor junior engineers and provide technical leadership across cloud initiatives - Drive continuous improvement and operational excellence across cloud platforms - Deliver secure, scalable, and resilient cloud solutions aligned with organizational objectives

Qualifications

• Degree in Information Technology, Computer Science, Engineering, or related discipline

• Minimum 5–8 years of experience in cloud and infrastructure engineering

• Experience designing and managing enterprise cloud environments

• Strong knowledge of public, private, and hybrid cloud architectures - Hands-on experience with Microsoft Azure and Amazon Web Services

• Experience with VMware vSphere, ESXi, vCenter, and distributed switches

• Experience administering Nutanix hypervisor platforms

• Strong Windows Server administration experience

• Experience managing IIS and Microsoft SQL Server environments

• Proficiency in Active Directory, Group Policy, DNS, DHCP, and identity management solutions - Experience with Infrastructure as Code and automation technologies

• Knowledge of cloud security, governance, and compliance frameworks

• Experience implementing disaster recovery and business continuity solutions - Strong troubleshooting, analytical, and problem-solving skills

• Experience supporting enterprise-scale production environments

• Experience working with ITSM and change management processes - Experience leading cloud migration and modernization initiatives

• Knowledge of cloud-native architecture and platform services

• Experience supporting large-scale hybrid cloud environments - Familiarity with cloud monitoring and observability platforms - Experience in cloud cost optimization and governance

• Ability to evaluate emerging technologies and recommend adoption strategies - Strong stakeholder management and communication skills

• Proven ability to mentor and coach junior engineers

• Experience participating in enterprise architecture reviews - Ability to lead technical discussions and infrastructure planning activities

• Strong documentation and technical writing skills

• Experience working within multi-vendor enterprise environments - Experience with cloud automation and orchestration technologies

• Knowledge of enterprise backup and recovery solutions - Familiarity with infrastructure security and compliance requirements

• Experience implementing high-availability and resilient cloud architectures -

Certified:

• Azure Administrator Associate - AWS Certified Solutions Architect – Associate

• Understanding of enterprise infrastructure governance frameworks - VMware Certified Professional (VCP) - Microsoft

WHAT’S ON OFFER

You will be remunerated with an excellent base salary and entitled to attractive company benefits. Additionally, you will get the opportunity to enjoy a fun and collaborative work environment, alongside a strong career progression.

To submit your application, please apply online or email your UPDATED CV in Microsoft Word format to Aatiqashaikh@aven-sys.com Your interest will be treated with strict confidentiality.

CONSULTANT DETAILS

Consultant Name: Aatiqa Shaikh
Reg No: R1765546
Avensys Consulting Pte Ltd
EA Licence 12C5759

Privacy Statement: Data collected will be used for recruitment purposes only. Personal data provided will be used strictly in accordance with the relevant data protection law and Avensys' privacy policy.

Job Description:
On site support in Singapore Data Centre that will carry out Provisioning and troubleshooting of DWDM, Router, Switch and fibre issues.

Roles and Responsibilities:

DWDM (Dense Wavelength Division Multiplexing) Support

• Assist in installation and commissioning of DWDM equipment.
• Perform basic troubleshooting of optical transmission issues.
• Monitor alarms and escalate complex faults to senior engineers.
• Verify optical power levels and ensure compliance with design specs.

Switch & Router Support

• Perform initial configuration under supervision (e.g., VLAN setup, IP addressing).
• Monitor device health and interface status.
• Replace faulty hardware components as directed.
• Assist in firmware upgrades and patching activities.

Fiber Optic Support

• Conduct fiber cleaning and connector inspection.
• Perform basic OTDR tests and document results.
• Assist in fiber splicing under guidance.
• Maintain accurate fiber route and patch panel records."

Operational Tasks

• Respond to on-site trouble tickets and perform first-level diagnostics.
• Coordinate with NOC for remote troubleshooting and escalation.
• Maintain inventory of spare parts and tools.
• Document all activities in the maintenance log and ticketing system.
• Preventive Maintenance
• Perform routine checks on DWDM nodes, switches, and routers.
• Inspect fiber trays and ensure proper cable management.
• Verify environmental conditions (temperature, humidity) in equipment rooms.

Soft Skills & Collaboration

• Communicate effectively with senior engineers and NOC teams.
• Provide clear status updates during outages or maintenance windows.
• Participate in training sessions to enhance technical skills.

Qualification, Skills, and Knowledge

• Fresh Graduate are welcome with at least CCNA or other industry standard related certification
• A strong interest on how Internet and data communications works
• A good academic result is plus

What you'll be doing

1. Configuring and troubleshooting network devices such as routers, switches, firewalls and wireless access points

2. Monitoring network performance and diagnosing and resolving any issues that arise

3. Implementing network security measures to protect against cyber threats

4. Documenting network configurations and maintaining up-to-date records

5. Collaborating with cross-functional teams to align network infrastructure with business objectives

6. Providing technical guidance and support to end-users

7. Researching and recommending new network technologies to drive innovation

What we're looking for

1. Minimum 1 years' experience as a Network Engineer or in a similar role

2. Strong technical knowledge of network protocols, switching, routing, firewalls and wireless technologies

3. Proficiency in network troubleshooting and fault-finding techniques

4. Experience with network management tools and monitoring platforms

5. Excellent problem-solving and analytical skills

6. Strong communication and interpersonal skills to liaise with both technical and non-technical stakeholders

7. Relevant certifications such as CCNA or CCNP would be advantageous

What we offer

At Knowledge Computers Pte Ltd, we are committed to providing our employees with a rewarding and fulfilling work experience. In addition to a competitive salary, you will enjoy:

1. Opportunities for professional development and career advancement

2. Comprehensive medical and dental benefits

3. Generous annual leave entitlement

4. Flexible work arrangements to support work-life balance

We are currently hiring for Network Engineer who can manage wired and wireless network access infrastructure; and support Data Centre network operations

1. Administer and support network infrastructure including network routers, switches, wireless access points, LAN controllers, AAA servers and encryptors
2. Respond and diagnose tickets related to network access and performance issues
a. Service and close support tickets to relocate or add client endpoints wired network access
b. Service and close support tickets to resolve client endpoints' wireless access
3. Troubleshoot, triage and resolve client endpoints' 802.1Xauthentication/authorization access issues and escalate, if necessary, L2 andL3 issues
4. Monitor availability of network access and provide immediate response and/or investigation to system alerts
5. Troubleshoot and assist with root cause analysis of incidents replacing failed network components
6. Support and perform routine automation tasks to ensure compliance for secure configuration, configuration backup management and routine firmware upgrades/updates
7. Manage operational activities and implement changes
8. Track network equipment support lifecycle, procure and support refresh activities to project closure and payment
9. Track equipment maintenance support agreements and telco circuits contracts, procure contract renewal and make payment
10. Support project teams in the delivery of wider IT services.

Please refer to U3’s Privacy Notice for Job Applicants/Seekers at https://u3infotech.com/privacy-notice-job-applicants/. When you apply, you voluntarily consent to the collection, use and disclosure of your personal data for recruitment/employment and related purposes.

Job Description

We are looking for an experienced Network Engineer to manage, maintain, and support enterprise IT infrastructure across AIX, Linux, VMware, AWS, and database environments. The role will involve server administration, cloud infrastructure support, virtualization management, system monitoring, backup and recovery, performance tuning, and troubleshooting of infrastructure-related issues.

The successful candidate will be responsible for ensuring system availability, security, performance, and reliability across on-premise and cloud environments.

Key Responsibilities

Manage and administer AIX and Linux servers, including installation, configuration, upgrades, patching, migration, and maintenance.

Support enterprise server environments running on IBM AIX, RHEL, CentOS, Ubuntu, and related platforms.

Administer VMware ESXi and vCenter environments, including VM creation, cloning, templates, snapshots, vMotion, HA, and resource configuration.

Perform daily server health checks, monitoring of CPU, memory, disk, network, and system performance.

Troubleshoot server, operating system, network, hardware, and virtualization-related issues within agreed SLA timelines.

Manage user accounts, groups, permissions, file systems, security settings, and access controls.

Configure and manage LVM, NFS, Samba, LDAP, cron jobs, Apache, and other Linux/AIX services.

Perform backup, restore, disaster recovery, root password recovery, boot issue troubleshooting, and disk replacement activities.

Administer IBM Power Systems, including HMC, LPAR, DLPAR, VIO Server, SEA, MPIO, and NIM configuration.

Support AWS cloud infrastructure, including EC2, S3, IAM, VPC, RDS, CloudWatch, Route 53, EFS, security groups, Auto Scaling, and Load Balancers.

Create and manage AWS accounts, IAM access, EC2 instances, storage volumes, snapshots, backups, and cloud monitoring alerts.

Implement AWS security best practices using IAM, KMS, GuardDuty, AWS Shield, and related services.

Support cloud migration, cost optimization, automation, and high-availability cloud infrastructure.

Install, configure, and administer MySQL, MariaDB, Percona, PostgreSQL, Redis, and MongoDB in Linux environments.

Manage database users, schemas, backup jobs, replication, alerts, slow query settings, and database troubleshooting.

Support SAN storage administration, including LUN creation, expansion, mapping to ESXi, and health monitoring.

Use monitoring tools such as Nagios, Zabbix, Grafana, Cacti, and LPAR2RRD to track infrastructure health and performance.

Create scripts using Shell scripting, Bash, Korn shell, and Ansible playbooks to automate routine administration tasks.

Coordinate with internal teams, vendors, and support engineers for issue resolution, system maintenance, and infrastructure improvements.

Job Requirements

Diploma or Degree in Information Technology, Computer Science, Engineering, or related discipline.

Minimum 8 to 10 years of experience in system administration, infrastructure support, or related IT operations role.

Strong hands-on experience in AIX and Linux system administration.

Experience with Linux distributions such as RHEL, CentOS, and Ubuntu.

Good knowledge of VMware ESXi, vCenter, VM templates, cloning, snapshots, vMotion, and HA.

Hands-on experience with AWS cloud services, including EC2, S3, IAM, VPC, RDS, CloudWatch, Route 53, EFS, Load Balancers, and Auto Scaling.

Experience in server build, migration, upgrade, patching, monitoring, backup, and recovery.

Knowledge of IBM Power Systems, including HMC, LPAR, DLPAR, VIO, SEA, MPIO, and NIM will be advantageous.

Experience in MySQL, MariaDB, Percona, PostgreSQL, Redis, or MongoDB administration.

Knowledge of SAN storage, LUN mapping, ESXi storage connectivity, and storage health monitoring.

Familiar with monitoring tools such as Nagios, Zabbix, Grafana, Cacti, or LPAR2RRD.

Able to troubleshoot hardware, OS, network, storage, database, cloud, and virtualization issues.

Experience with automation tools such as Shell scripting and Ansible.

Good understanding of IT security, access control, backup strategy, disaster recovery, and system performance tuning.

Ability to work independently and as part of a team in a fast-paced environment.

Good communication, documentation, analytical, and problem-solving skills.

Professional certifications such as IBM Certified System p Administrator AIX, ITIL, AWS, Linux, or VMware certifications will be an advantage.

[Job ID: 1600983]

Responsibilities

• Deliver professional services, including deployment, implementation, and upgrades of cybersecurity products distributed by the organization. This may occasionally involve customer coordination and project timeline management.
• Provide practical and effective technical solutions or alternatives based on customer requirements.
• Conduct product training for customers, partners, and internal teams.
• Perform installation, configuration, and basic troubleshooting independently using product documentation.
• Continuously upskill and obtain relevant technical certifications for assigned technologies.
• Develop into a subject matter expert over time and support knowledge transfer to internal teams for enhanced customer support.
• Provide technical support to sales and support teams, including product clarification, solution design input, tender compliance, and ad-hoc technical assistance.
• Perform any other duties as assigned.

Requirements

• 2 years of experience in IT, Information Security, or Cybersecurity preferred
• Strong knowledge of cybersecurity and IT infrastructure, including:
  Firewalls, VPN, DLP, IDS/IPS, Web Proxy, DNS, Email Security, SIEM, log management, virtualization, containers, cloud platforms (AWS, Azure, Google Cloud), DevOps/DevSecOps, IAM, PAM, endpoint security, CyberArk Conjur.
• Solid troubleshooting skills in networking and systems, including:
  TCP/IP, routing, NAT, VLAN, multicast, OSPF, BGP, Active Directory, LDAP, RADIUS, SNMP, Syslog, SMTP, TLS, SSH.
• Strong interest in cybersecurity trends and attack techniques.
• Relevant certifications are an advantage:
  Cisco CCNA/CCNP, Check Point CCSE/CCSM, CyberArk CDE, CISSP, CREST, OSCP, and other security-related certifications.

We regret that only shortlisted candidates will be notified. However, rest assured that all applications will be updated to our resume bank for future opportunities.

Please kindly refer to the Privacy Policy of Good Job Creations for your reference: https://goodjobcreations.com.sg/en/privacy-policy/

EA Personnel Name: Ong Kang Quan Ryan
EA Personnel Registration Number: R23116952
EA License No.: 07C5771

Required Qualifications & Experience

Education & Certifications

· Diploma or bachelor’s degree in Information Technology, Computer Engineering, or a related field.

· Relevant certifications, such as:

o Cisco CCNA / CCNP

o Fortinet NSE 4 or equivalent

o AWS Solutions Architect – Associate

Technical Experience

· 4–5 years of hands-on experience in network implementation, operations, and support within

enterprise environments.

· Strong experience with enterprise networking technologies, including:

o Switching, routing, firewalls, and VPNs (Cisco, Fortinet, Palo Alto, AWS, Azure)

o IP networking fundamentals, routing protocols (BGP, OSPF), QoS, and Ethernet

· Experience using network monitoring and management tools (e.g. PRTG, SolarWinds).

· Good understanding of structured cabling, Wi-Fi technologies, NAC, and network security controls.

· Proven troubleshooting capability in complex, multi-site or hybrid cloud network environments.

Soft Skills & Attributes

· Strong analytical and problem-solving skills.

· Customer-oriented mindset with the ability to manage multiple tasks in a fast-paced environment.

· Clear communication and e0ective technical documentation skills.

· High attention to detail with strong organizational abilities.

· Ability to work independently and collaboratively within cross-functional and project teams.

Working Conditions

· May require after-o0ice-hours work during scheduled maintenance or critical network activities.

· Exposure to enterprise-scale, multi-site, and cloud-integrated network environments.

Key Responsibilities

1. Network Implementation & Operations

· Implement, configure, operate, and maintain network infrastructure (physical and virtual), including

LAN, WAN, Wi-Fi, cloud networking, and structured cabling.

· Participate in the network design phase by reviewing designs, validating assumptions, highlighting

operational risks, and ensuring designs are implementable and supportable.

· Configure, troubleshoot, and support network equipment such as switches, routers, firewalls, and

wireless access points.

· Perform technical site surveys, Wi-Fi passive site surveys, and site preparation activities as input to

design and implementation.

· Monitor network performance, capacity, and availability; proactively identify and resolve incidents

to ensure stable operations.

· Support scheduled maintenance, including after-hours maintenance windows when required.

· Attend remote sites for fault isolation, troubleshooting, and service provisioning activities

· Liaise with vendors & internal stakeholder on Network Cabling works (eg Laying of New LAN

cables during O0ice Renovation.)

2. Network Monitoring, Optimization & Resilience

· Operate and maintain network monitoring platforms such as PRTG and SolarWinds.

· Analyze performance metrics, bandwidth utilization, and fault data to support continuous

optimization and service improvement.

· Implement and support disaster recovery and backup solutions for network infrastructure in line

with approved architecture.

· Manage cabling assets and maintain accurate and up-to-date physical and logical network

diagrams.

3. Cloud Networking & Connectivity

· Implement and support cloud networking components and connectivity in AWS or other Cloud

Connectivity environments based on approved designs.

· Ensure secure and reliable connectivity between on-premises environments, cloud platforms, and

external service providers.

· Provide implementation and operational feedback to improve cloud network designs for

performance, scalability, and cost e0iciency.

4. Security, Risk & Compliance

· Implement and operate network security controls including firewall policies, VPNs, NAC, and Wi-Fi

security configurations.

· Ensure network implementations comply with internal standards, security policies, and industry

best practices.

· Support audits by providing evidence, addressing findings, and implementing corrective actions.

· Perform vulnerability assessment, remediation, and security hardening activities across

enterprise network and security infrastructure environments

5. Documentation & Change Management

· Develop, maintain, and update network documentation, including:

o As-built network documentation and diagrams

o Implementation and configuration guides

o Operational runbooks and support procedures

o Preventive maintenance documentation

· Ensure all network changes follow established change management and approval processes.

· Documenting network configurations and maintaining up-to-date records

· Maintaining IT Asset Inventory

6. Project & Stakeholder Collaboration

· Work closely with Project Managers and solution teams to deliver network components of projects

according to agreed scope, timelines, and quality standards.

· Participate in project design discussions to provide implementation, operational, and

maintainability input.

· Collaborate with cross-functional teams to resolve complex network issues and support service

delivery.

· Provide technical support and guidance to internal users and stakeholders on network-related

matters.

· Flexible to travel within Singapore and work in construction-site environments during the

implementation and initial setup of network infrastructure

7. Vendor & Service Provider Management

· Coordinate with vendors and service providers during implementation, troubleshooting, and

service delivery activities.

· Support vendor performance monitoring and resolution of network service issues.

· Assist in technical evaluation and validation of vendor solutions against approved designs and

standards.

8. Datacenter management

· Manage Data Centre physical security, access control, and operational activities.

· Provide 24x7 standby support and travel as required to support Data Centre operations,

maintenance, and project activities.

· Provide 1st Level investigation into hardware or connectivity issues.

· Manage and organize physical cabling within the data center, including fiber optics, network cables,

and power cables

Responsibilities

• To configure, implement and maintain all security platforms (E.g. Firewall, Intrusion Prevention, Web Application Firewalls, Web Proxies, DNSSEC)

• Perform assessment of Security Advisories and provide recommendations to the team

• Ensure that all security devices are configured in accordance network security best practices

• Perform periodic vulnerability testing and ensure the remediation of all findings

• Perform regular review of security logs to identify potential operational/security issues

• Perform regular patching of security devices to ensure that devices firmware are kept up to date

• Ensure that all incidents are resolved within the required SLA

• Ensure that all Service Requests are completed within the required SLA

• Ensure that Work Instructions are in place and kept up-to-date for the delivery of all operational tasks

• Continuously review and improve Operations Efficiency (E.g. improving operational efficiency through automation)

• Generates routine reports in the required format

• Secure users and servers internet access

• To support and implement new initiatives

Requirements

• Diploma/Degree in Engineering or IT / Bachelor Degree in Computer with 5 years' experience and knowledge in Enterprise IT 

• Holding professional certificate are preferable: CISSP, CISCO CCIE, PCNSE and ITILv4

• Extensive technical know-how of network security devices (E.g. Firewall, Intrusion Prevention, Web Application Firewalls, Web Proxies, DNSSEC)

• Hands-on experience in at least 2 of the security devices (E.g. Firewall, Intrusion Prevention, Web Application Firewalls, Web Proxies, DNSSEC)

• Strong knowledge with Web proxy and CCNP is a must, or either in network automation tools like experience in working with automation tools (E.g. ansible), monitoring & observability and logging systems (E.g. ELK)

• Strong technical skills in areas of systems engineering, systems administration, networking, and security

• Strong problem-solving skills and be able to troubleshoot and resolve complex issues quickly

Licence no: 12C6060

This role involves network implementation, administration, troubleshooting, and collaboration with various stakeholders to deliver secure and reliable connectivity services.

Responsibilities

• Manage and support LAN, WAN, SD-WAN, VPN, firewall, load balancer, and DNS environments.
• Implement network changes and configurations in accordance with change management processes.
• Troubleshoot network issues and optimise performance.
• Design and support network solutions based on business requirements.
• Conduct proof-of-concepts and support infrastructure upgrades/refresh initiatives.
• Maintain network documentation and operational procedures.
• Participate in a rotational 24/7 standby support roster.
• Mentor junior engineers and support technical knowledge sharing within the team

Requirements

• Diploma/Degree in IT, Computer Science, or related field.
• Minimum 4 years of Network Engineering experience in a medium to large enterprise environment.
• Strong knowledge of routing, switching, firewall, and network security technologies.
• Hands-on experience with technologies such as VLAN, STP, OSPF, BGP, VPN, NAT, ACL, DNS, DHCP, and load balancing.
• Familiarity with enterprise network and security platforms from leading vendors.
• Strong troubleshooting and stakeholder management skills.

Preferred

• CCNP or equivalent networking certification.
• Firewall certifications are advantageous (eg: CheckPoint or Palo Alto).
• Experience supporting large-scale or mission-critical environments is a plus.

Thank you for your interest but we regret that only shortlisted candidates will be contacted shortly.

Careerally Pte Ltd | EA Licence: 24C2215
Frieda Chan | EA Registration No: R2199193

Responsibilities

• Oversee the organization’s IT infrastructure, ensuring optimal performance, security, and reliability of servers, network and security systems, as well as cloud services.
• Design, implement, and maintain the IT infrastructure of the organization.
• Maintain Windows servers, virtualization platforms, and storage solutions.
• Manage Active Directory, DNS, DHCP, and Group Policy.
• Ensure high availability and disaster recovery with backups and replication.
• Monitor system performance, troubleshoot issues, and apply patches and updates.
• Implement network design, configure, and maintain LAN, WLAN, and VPN infrastructure, managing firewalls, switches, and routers.
• Implement and monitor network security policies, intrusion detection, and access control.
• Optimize network performance, troubleshoot connectivity issues, and ensure redundancy.
• Implement cybersecurity best practices, monitor threats, and manage endpoint protection and vulnerability assessments.
• Ensure compliance with regulations.
• Conduct security audits and enforce policies on user access, encryption, and authentication.
• Create and maintain network documentation, including network diagrams, configurations, and procedures.
• Carry out any other tasks assigned by the management

Requirement

• Min Degree in Information Technology or relevant
• Min 5 years of experience in providing Network, System and Cybersecurity operational support.
• Experience with servers, network and security devices, firewall, switches, routers, load balancers and wireless solutions.
• Certifications in CCNA/ CCNP/ CCIE/ Microsoft certified Azure Solutions Architect and/or Windows Server Administrator, CISSP, CISM and CompTIA Security will be required

To submit your application, please apply online to apply@rn-care.com or call +(65) 6513 5697 for private and confidential discussion.

Your interest will be treated with the strictest of confidence. We regret that only shortlisted candidates will be notified or contacted.

RN Care Pte. Ltd
EA License No: 17C8900

The Managed Services Cross Technology Engineer (L3/L4) – Network / Security is an advanced, architect-level role across multiple technology domains (Cloud, Security, Networking, Applications, Collaboration). The primary objective is to design, implement, and maintain an enterprise network defensive architecture to protect data and infrastructure from sophisticated threats. This role acts as the highest-tier escalation point (4th-line support) to resolve complex operational incidents, ensure contracted client outcomes, and meet Service Level Agreements (SLAs).

Key Responsibilities

1. Strategy & Architecture

• Security Roadmap: Define, architect, and champion the overall network security posture across on-premise, cloud, and hybrid environments (including Zero Trust and SASE models).

• Infrastructure Design: Deploy and manage core components like Next-Gen Firewalls (NGFW), IDS/IPS, WAF, Load Balancers, VPNs, and Network Access Control (NAC) systems.

• Cloud & Segmentation: Design secure cloud networking patterns (e.g., AWS VPCs, Azure VNets) and enforce micro-segmentation.

• Policy & Governance: Establish and enforce comprehensive network security policies, standards, and baselines.

2. Incident Management & Operations

• L4 Escalation Support: Act as the final technical tier for complex incidents that lower-level teams (L1–L3) cannot resolve, performing deep root-cause analysis.

• Ticket & SLA Ownership: Systematically troubleshoot, log, track, and update tickets with resolution details within agreed timelines.

• Proactive Monitoring: Diagnose and investigate potential system issues and errors before or when they occur to minimize client impact.

• Emergency & Change Management: Serve as an emergency contact for critical, business-impacting outages and oversee strict change management protocols.

3. Optimization, Projects & Mentorship

• Automation: Collaborate with automation teams to script and automate routine operational tasks for effort optimization.

• Knowledge Sharing & Mentorship: Create high-quality technical documentation (HLD/LLD) and coach/push knowledge down to junior engineering teams.

• Disaster Recovery: Develop, implement, and test network security components within Disaster Recovery (DR) and Business Continuity plans.

• Project Delivery: Manage, implement, and execute technical projects according to client timelines.

• Quality Audits: Perform process and service experience quality audits.

Key Competencies & Attributes

• Strong client-centric focus with a passion for exceeding expectations under pressurized environments.

• Excellent change management, active listening, and cross-cultural communication skills.

• Ability to plan effectively amid changing circumstances and work extended hours when necessary.

Technical Skills & Certifications

• Education: Bachelor’s degree in IT/Computing or equivalent work experience.

• Preferred Certifications: CCIE, CCNP Security, CISSP, PCNSE, or vendor-specific firewalls (Fortinet, Check Point, Cisco).

• Core Technology Stack Required:

  • Firewalls/Security: Cisco ISE, Fortinet (FortiGate, FortiManager), Check Point, CyberArk.
    (Firewalls: Expert-level management of Cisco OR FortiGate)

  • Application Delivery/Vulnerability: F5 (LTM, WAF), RSA, Tenable, Trend Micro.

  • Monitoring & Tooling: Solarwinds, Splunk Enterprise, OPSWAT.

  • Network Diagnostics & Automation: Advanced packet analysis (Wireshark/tcpdump) and basic automation scripting (Python/Ansible).

Key Responsibilities

• Provide operational support and deployment services for customers' cloud infrastructure and environments.
• Investigate, diagnose, and resolve issues across cloud-scale and backbone network infrastructures.
• Support and maintain Software-Defined Networking (SDN) services and cloud networking solutions, including Azure Front Door (AFD), Distributed Denial-of-Service (DDoS) protection, Domain Name System (DNS), ExpressRoute, and related services.
• Participate in standby and on-call rotations to provide after-hours operational support when required.

Requirements: 

• Diploma or Bachelor's Degree in Computer Science, Computer Engineering, or a related field.
• Minimum of 5 years of relevant experience in large-scale data centre environments for the Senior Engineer position.
• Minimum of 8 years of relevant experience in large-scale data centre environments for the Lead position.
• Strong communication and interpersonal skills, with the ability to collaborate effectively across technical teams and business functions.
• Demonstrated leadership capabilities and proven experience managing or leading technical teams will be advantageous for the Lead role.

Technical Skills:

Programming & Scripting

• Proficiency in Kusto, Java, Python, and Perl.
• Operating Systems: Strong hands-on experience with Linux-based operating systems.
• Cloud & Network Technologies: Experience with virtual networking technologies, including SDN, Virtual Networks (VNet), DNS, ExpressRoute, Traffic Manager, and Load Balancers.
• Data Formats: Familiarity with machine-readable data formats such as JSON and XML.
• Certifications: Relevant networking certifications such as CCNP or JNCIP is a plus.
• Network Automation & Security: Practical experience in network automation, infrastructure orchestration, and network security operations. 

To apply, please visit www.gmprecruit.com and search for Job Reference: RY75634R

We regret that only shortlisted candidates will be notified.

GMP Technologies (S) Pte Ltd | EA License: 11C3793 | EA Personnel: Bautista Gia Grace De Guzman | Registration No: R23111973

Immediate 1 Year Project Assignment for Singaporean to join as Network Engineer (Cisco/Fortigate) at Airport work Location

Mon to Fri Office hours 

If you have Dip in IT +2yrs network maintenance experience on Cisco & Fortigate products & seeking to work at Airport location, this is the job for you.

Remuneration: Basic + 1 month Completion Bonus + HP Claim 

Primary Purpose:

1)           Perform and ensure routine maintenance activities are carried out as scheduled.

2)           Perform OS upgrades/patching.

3)           Attend to network and system service and change request. 

4)           Provide resolution for all application and/or technical incidents and work with external support if required.

5)           Identify root cause, preventive and corrective measures for identified problems to prevent recurring incidents.

6)           Provide incident and problem reporting for all stakeholders in timely and professional manner.

7)           Assist in preparing system related documents and ISO Audit

8)           Participate in new project implementation, requirement gathering, setup & installation, testing and commissioning.  

Responsibilities:

Assist in Project Implementation and Maintenance of the Implemented System.

Our Requirements:

1)           Possess at least a Diploma or its equivalent in Computer / IT with minimum 2-3 years working experience in related field. Those with CCNA but no work experience with positive learning attitude can be considered.

2)          Ideal Candidate : 2-3 years of working experience as a Network Engineer supporting Cisco, Fortigate, Huawei product in switch, router, firewall, monitoring tools, security appliances and cablings.

3)           Trained or certified in Cisco, Fortigate products would be advantageous.

4)           Analytical, proactive and able to multi-task and prioritize all work assigned.

5)           Team player with good English communication skills who can also work independently under minimum supervision.

6)           Motivated individual with challenger spirit and leadership are strongly encouraged to apply.

7)           Exceptional troubleshooting and customer-handling skills would be advantageous.

8)           Proactive and responsive on all assigned tasks and incidents and follow up

ES Recruitment Pte Ltd

EA License No: 09C4235

EA Reg: R1103307 (Hong Mei Lin)