Total 2,232 qa engineer job vacancies in Information Technology category

Key Responsibilities

• Develop and implement data analytics solutions to convert raw structured and unstructured data into meaningful insights.
• Apply data mining, data modeling, machine learning, and natural language processing (NLP) techniques to solve business challenges.
• Design and maintain scalable data pipelines, ETL processes, and data platforms to ensure data quality, accessibility, and reliability.
• Build dynamic dashboards, reports, and visualizations to communicate key findings and support decision-making.
• Establish data governance frameworks, data standards, metadata management, and asset catalogs to improve data consistency and compliance.
• Collaborate with cross-functional stakeholders to deliver data-driven solutions and optimize business processes.
• Evaluate emerging AI technologies and implement innovative solutions that enhance operational efficiency and business performance.

Preferred Qualifications

• Master's degree or above in Computer Science, Data Science, Engineering, Statistics,  Business Analytics or a related field.
• Proven experience in Data Engineering, Data Analytics, Machine Learning, AI Applications, or Data Governance.
• Strong proficiency in SQL, Python, and data visualization tools such as Tableau or Power BI.
• Experience building ETL pipelines, data lakes, APIs, and large-scale data platforms.
• Solid understanding of machine learning, predictive analytics, data modeling, and NLP techniques.
• Excellent analytical, problem-solving, and stakeholder management skills.

Interested candidate please click "APPLY" to begin your job search journey.

We regret to inform that only shortlisted candidates will be notified.

By sending us your personal data and curriculum vitae (CV), you are deemed to consent to PERSOL Singapore Pte Ltd and its affiliates to collect, use and disclose your personal data for the purposes set out in the Privacy Policy available at https://www.persolsingapore.com/policies. You acknowledge that you have read, understood, and agree with the Privacy Policy. 

PERSOL Singapore Pte Ltd

•RCB No. 200007268E • EA License No. 01C4394

•Registration ID: Heah Sian Wei R23117518

Details:
1 Year Renewable Contract

Duties:

• Manage and support enterprise network infrastructure including routers, switches, firewalls, and load balancers in 24x7 production environments.
• Install, configure, and maintain network hardware and software; manage user access, permissions, and authentication systems.
• Ensure high availability, resilience, and performance through routine health checks, monitoring, and capacity planning.
• Design, implement, and manage connectivity between on-premise data centres and cloud environments.
• Support cloud VPC architecture, VPN (Site-to-Site / Client), and Direct Connect integration.
• Troubleshoot hybrid connectivity issues across cloud and on-premises environments, coordinating with telecom providers as needed.
• Configure and manage firewalls, security groups, NACLs, network segmentation, and zoning.
• Implement security best practices aligned with regulatory standards and PCI DSS requirements where applicable.
• Collaborate with the security operations team on vulnerability remediation, system hardening, and incident response.
• Monitor network performance using tools such as SolarWinds, PRTG, CloudWatch, or equivalent platforms.
• Analyse traffic patterns, latency, and throughput; proactively identify and resolve performance bottlenecks.
• Investigate and resolve network outages, connectivity issues, latency, and packet loss in coordination with cloud teams, telcos, and third-party contractors.
• Participate in major incident management processes and contribute to root cause analysis (RCA).
• Implement network changes in accordance with change advisory board (CAB) processes; support deployments requiring network configuration updates.
• Perform validation testing and rollback planning for all changes.
• Manage network connectivity with external partners, payment gateways, and telecommunications providers.
• Coordinate vendor provisioning, troubleshooting, and performance optimisation; monitor connectivity health post-provisioning.
• Design and maintain network redundancy, failover mechanisms, and disaster recovery (DR) configurations.
• Participate in DR exercises and validate failover readiness.
• Maintain up-to-date network diagrams, configurations, SOPs, and operational runbooks.
• Identify and recommend improvements for network performance, security, and scalability.
• Provide after-hours support for incidents, scheduled maintenance, firmware/software updates, and critical network changes.

Requirements:

• Diploma or degree in Computer Science, Information Technology, Engineering, or equivalent.
• Minimum 3 years of experience in network engineering or operations, supporting enterprise or mission-critical hybrid environments.
• Hands-on experience with AWS networking services including VPC, subnets, route tables, security groups, NACLs, VPN, and Direct Connect; exposure to Azure or GCP is an advantage.

Interested Applicants, please click Apply Now

Chow Zi Qing

R2199258

RevUp Proservices Pte Ltd

EA.24C2366

Key Qualifications

• Proficiency in programming languages such as Java, Python, or JavaScript.
• Experience with cloud hosting platforms such as AWS, Azure, or Google Cloud Platform.
• Strong understanding of Kubernetes and containerisation technologies.
• Excellent problem-solving skills and attention to detail.
• Strong communication and interpersonal skills, with the ability to work effectively in a team environment.

Description
- Design, develop, and maintain full stack applications, with a focus on platform development and cloud hosting.

- Collaborate with multi-functional teams to define project requirements and deliver high-quality solutions.

- Implement best practices for software development, including code reviews, testing, and documentation.

- Optimise application performance and scalability through the use of Kubernetes and other cloud technologies.

- Develop and maintain deployment pipelines to automate the software release process.

- Stay up-to-date with the latest trends and technologies in software development and platform engineering.

Education & Experience

Bachelor's degree in Computer Science, Engineering, or related field.

JD & REQUIREMENTS:

Fullstack Engineer

Location: Singapore • Type: Full-time, On-site

About the Role

We're looking for a Fullstack Engineer to build and maintain scalable web applications while driving our test automation and quality initiatives. You'll work across the entire stack—developing features, designing automated testing frameworks, and ensuring our systems are reliable, well-tested, and production-ready.

Responsibilities

•Design, develop, test, and maintain web applications and backend services

•Build and maintain automated testing frameworks using Playwright for end-to-end, integration, and regression testing

•Develop automation scripts for workflow automation and repetitive tasks

•Collaborate with fellow engineers to deliver robust, scalable solutions

•Implement and maintain CI/CD pipelines with integrated automated testing

•Troubleshoot, debug, and optimize applications for reliability and performance

•Ensure system availability through routine maintenance and on-call support when required (compensated overtime)

•Stay current with automation tools and testing best practices, sharing knowledge with the team

Requirements

Technical Skills

•3+ years of software engineering experience with TypeScript, JavaScript, Python, and Node.js

•Strong Python scripting skills for automation and backend tasks

•Hands-on experience with Playwright for browser automation and end-to-end testing

•Strong proficiency with Next.js and Nuxt.js

•Experience writing and maintaining automated test suites (unit, integration, E2E)

•Experience with cloud platforms (AWS, Azure, GCP) or deployment platforms like Railway

•Familiarity with containerization using Docker

•Experience with relational databases (PostgreSQL) and NoSQL databases (MongoDB)

•Solid understanding of REST API design and integration

•Understanding of networking fundamentals (HTTP, DNS, TCP/IP, proxies)

•Basic understanding of cybersecurity principles

Soft Skills

•Self-directed problem solver who can navigate unfamiliar codebases and learn new technologies independently

•Strong attention to detail, especially in testing and debugging

•Ownership mentality — sees tasks through from start to production

•Not afraid to challenge assumptions or propose alternatives

•Receptive to feedback and iterates quickly

About the Role

We are seeking a skilled QA Engineer with at least 3 years of hands-on experience in software testing. You will play a key role in ensuring product quality through effective test planning, execution, and automation.

The ideal candidate is detail-oriented, proactive, and experienced in both manual and automated testing. You should also be comfortable leveraging AI tools to improve testing efficiency, coverage, and overall delivery quality.

Key Responsibilities

• Analyse business requirements, functional specifications, and user stories to define test scope and identify risks

• Develop comprehensive test plans, test cases, test data, and execution schedules across web and mobile applications

• Execute various test types including functional, integration, regression, smoke, sanity, performance, and basic security testing

• Document test results and prepare clear, professional test reports for stakeholders

• Manage defects end-to-end: log, track, retest, and close issues with clear reproduction steps and evidence

• Design, maintain, and execute automated test scripts using tools such as Selenium, Playwright, Appium, or PyTest

• Support User Acceptance Testing (UAT) including preparation, facilitation, and feedback consolidation

• Collaborate with developers, business analysts, and product owners to enhance product quality

• Leverage AI tools for test case generation, automation, defect analysis, test data creation, and reporting

• Continuously improve testing processes, automation coverage, and QA standards

Requirements

• Minimum 3 years of experience in QA, Software Testing, or related roles

• Degree in IT, Computer Science, Software Engineering, or a related field

• Strong hands-on experience in:

  • Test planning, test case design, and reporting

  • Functional and regression testing (web and/or mobile)

• Good understanding of:

  • SDLC, STLC, Agile methodologies, and defect lifecycle

  • Performance testing concepts (load, stress, response time)

  • Basic security testing concepts (authentication, authorization, OWASP basics)

• Experience with automation tools/frameworks (e.g. Selenium, Playwright, Appium, PyTest)

• Strong adoption mindset and practical experience with AI tools in software testing

• Excellent English communication skills, with confidence in stakeholder engagement and UAT facilitation

Why Join Us

• Exposure to AI-enabled QA practices and modern automation tools

• Opportunity to work on diverse projects across web and mobile platforms

• Collaborative and growth-focused environment

• Continuous learning and improvement culture

Nice to Have

• ISTQB certification or equivalent

• Experience in CI/CD, DevOps, or cloud platforms

• Additional exposure to performance or security testing tools

Interested candidates who wish to apply for the above positions, please click "Apply now" or email to yilei.wong@neutron.sg

We regret that only shortlisted candidates will be notified.

Key Responsibilities

• Provide technical support and application engineering expertise for smart building, fire safety, and facilities management solutions.
• Analyze customer requirements and recommend suitable products, systems, and engineering solutions.
• Conduct technical evaluations, simulations (FEA/CFD), and feasibility studies to support product applications and project requirements.
• Prepare technical proposals, specifications, drawings, reports, and application documentation.
• Support product installation, testing, commissioning, troubleshooting, and performance optimization.
• Work closely with customers, consultants, contractors, and internal teams to ensure successful project execution and customer satisfaction.
• Assist in project planning, costing, scheduling, and technical presentations.
• Conduct site visits, inspections, testing, and audits as required.
• Ensure compliance with safety, regulatory, and quality standards.
• Provide technical training and after-sales support to customers and stakeholders.

Requirements

• Diploma or Degree in Mechanical Engineering, Fire Safety Engineering, Mechanical Design & Manufacturing Engineering, Systems Engineering, or a related field.
• Fresh graduates are encouraged to apply; comprehensive training will be provided.
• Strong analytical, problem-solving, and technical communication skills.
• Ability to work effectively with customers, vendors, and cross-functional teams.
• Familiarity with CAD, FEA, CFD, or similar engineering software is advantageous.
• Willingness to travel to customer and project sites when required.

Fabrica AI created an automatic tile grouting robot that delivers a 5x productivity boost.This patented solution, currently being deployed at leading construction companies like Woh Hup, BHCC, and others, exemplifies the transformative power of our approach.

We've secured over 3 million USD in funding from prestigious investors like Hoxton Ventures, Credo Ventures, and prominent figures like our professor from Cambridge University and construction giants like Woh Hup. This strong backing fuels our mission and validates the transformative potential of our technology. 

Website: https://www.fabrica.ai/ (and various press releases, awards, etc.)
Grouting Robot Video: https://drive.google.com/file/d/1JfY-tL7gGydiFUyScjJLhA6maB6viG6e/view

Core Responsibilities:

• Design, implement and maintain software modules for autonomous robot operation using the ROS2 framework.

• Design, implement and maintain firmware logic and architecture. 

• Develop code for embedded software components.

• Build and maintain data pipelines for the training and evaluation of AI models.

• Develop and integrate AI/ML models into the robot software stack.

• Research and evaluate other state-of-the-art AI techniques relevant to robotics, and Computer Vision.

• Evaluate and integrate third party open source libraries, SDKs and/or APIs where beneficial.

• Design and execute testing strategies including unit, integration and HIL tests to validate software correctness and system performance.

• Diagnose and resolve software and firmware issues across the stack.

• Develop and maintain tools for build systems, testing, logging and remote diagnostics.

• Involve and drive Continuous Integration and deployment (CI/CD) infrastructure and environment setup.

You may also be involved in:

• Hands-on assembly, wiring and soldering of electronic subsystems as part of prototype bring-up and iteration

• Occasional on-site deployment and testing at live operational environments (e.g. construction sites), requiring adaptability and safety-consciousness.

Technical Requirements:

• Proficiency in C++17 or later for performance-critical systems.

• Proficiency in Python for scripting, tooling, ML pipelines.

• Experience with bare-metal embedded development in C.

• Familiarity with robotics simulation environments like Gazebo for development and validation.

• Familiarity with deep learning frameworks such as PyTorch or TensorFlow.

• Familiarity with and computer vision libraries (e.g. OpenCV, Ultralytics).

Nice to Haves:

• Experience with version control (Git) and collaborative development workflows

• Experience in configuring sensors over I2C, CSI and CAN.

• Familiarity with cross-compilation build systems for embedded systems (arm-none-eabi).

• Familiarity with software design principles and CI/CD pipelines (eg Github Actions)

• Experience with electronics is a plus.

Values/Culture:

• Excited to work in a fast-moving startup environment where your work directly shapes the product and puts you close to real-world operations and clients

• Comfortable with ambiguity and able to self-direct in an environment where priorities evolve rapidly

• Strong first-principles thinking, comfortable defining success metrics and making reasoned decisions with limited data

• Self-motivated and impact driven, with a track record of going beyond the minimum through personal projects, open-source contributions or extracurricular technical work

• Excited about robotics and similar technical areas and exploring them in work and other projects

• Approach unfamiliar problems with curiosity and a growth mindset. Eager to learn across domains including hardware, software and operations

Our work is fast-moving and iterative, and your role will grow with it. We value people who can take initiative, connect their day-to-day work to the bigger picture, and adapt as our priorities evolve.

Click on the link above for more information, send your CV to careers@fabrica.ai to apply.

Should focus on day-2-day operations, incident, change management, and user centric trouble shooting.

Operate andcontinuously improve the organization’s Secure Access Service Edge (SASE)services using Zscaler Internet Access (ZIA) and Zscaler Private Access (ZPA),ensuring secure, reliable user connectivity and strong policy governance.

Keyresponsibilities (Operational / BAU)

• Runday-to-day operations for ZIA (web gateway, SSL inspection, URL filtering,cloud app control, sandbox, DLP , DNS security).

• Runday-to-day operations for ZPA (App Segments, Access Policies, Connectormanagement, posture requirements, policy troubleshooting).

• Monitorservice health and user experience; proactively identify trends and recurringissues.

• HandleL2/L3 incident troubleshooting: authentication issues (SSO/SAML),PAC/forwarding issues, tunnel/connector issues, policy blocks, certificate/SSLinspection issues.

• Performpolicy administration: create/update rules, exceptions, and change deploymentsfollowing CAB/ITSM change controls.

• Maintainforwarding architecture: Zscaler Client Connector, GRE/IPsec tunnels, PACfiles, forwarding profiles, location configuration, traffic steering.

• Manageintegrations: IdP (Azure AD/Entra ID, Okta, ADFS), SIEM (Splunk/QRadar),ticketing (ServiceNow), endpoint tools (Intune/Jamf), MFA.

• Executeroutine operational tasks: connector upgrades, certificate updates, locationupdates, application onboarding to ZPA, user/group updates.

• Work withvendors/TAC; drive cases to closure and implement corrective actions.

• Maintaindocumentation: runbooks, SOPs, troubleshooting guides, policy standards,onboarding checklists.

• Supportaudits and compliance: policy reviews, recertification evidence,logging/retention checks. Menlo Web Isolation Maintain allow-list/whitelist forapproved URLs/domains based on business justification and securityrequirements.

• Manageexception lifecycle: approvals, expiry dates, periodic review/cleanup, andrecertification evidence.

• Ensureisolation policies align with ZIA policies and do not create conflicting userexperience (e.g., bypass vs isolate logic) Site not loading in isolation,rendering issues, broken web apps, file download/upload restrictions,clipboard/printing controls (as applicable)

Coreskills:

• Strongworking knowledge of ZIA (SSL inspection, URL filtering, CASB/app control,sandbox, forwarding methods).

• Strongworking knowledge of ZPA (connectors, app segments, access policies, posture,authentication flows).

• Troubleshootingacross endpoint + network + identity (DNS, TLS cert chains, proxy behavior,SAML/SSO, routing).

•ITSM/change management discipline (ServiceNow/JIRA), documentation habits.Strong knowledge about Zero Trust concepts

•Nice-to-have: SIEM integration, DLP, basic scripting (PowerShell/Python) forops automation.

About EPAM

EPAM is a leading global provider of digital platform engineering and development services. EPAM has been expanding in Singapore since 2013 and delivering the best solutions to our customers. As a recognized leader, EPAM Singapore achieved Great Place to Work® Certification in 2023 and is committed to providing our team with inspiring careers.

You will have the opportunity to work with fellow talented technologists and accelerate your career by participating in our numerous upskilling, training, and certification programs. That is why EPAM Singapore was awarded Gold for Best In-House Certification Programmes in the Employee Experience Awards 2023 and Silver in the SkillsFuture Employers Awards 2022 for our efforts in championing employees' skills development and building a lifelong learning culture at the workplace. You can also look forward to developing holistically with the multiracial festivals and various wellness and cultural activities organized by our passionate colleagues here.

Why EPAM?

• By choosing EPAM, you're getting a job at one of the most loved workplaces according to Newsweek 2022 & 2023.
• Employee ideas are the main driver of our business. We have a very supportive environment where your voice matters.
• You will be challenged while working side-by-side with the best talent globally. We work with top-notch technologies, constantly seeking new industry trends and best practices.
• We offer a transparent career path and an individual roadmap to engineer your future & accelerate your journey.
• At EPAM, you can find vast opportunities for self-development: online courses and libraries, mentoring programs, partial grants of certification, and experience exchange with colleagues around the world. You will learn, contribute, and grow with us.

What You’ll Do

• Architect, develop, and optimize advanced automated test frameworks using Python or Java with Selenium or Playwright
• Lead the creation of comprehensive test strategies for AI and agentic AI systems
• Oversee API and integration testing, ensuring coverage for complex workflows
• Analyze and troubleshoot test results, driving root cause analysis and continuous improvement
• Collaborate with cross-functional teams to define requirements and ensure testability
• Mentor and guide junior test engineers, sharing best practices and technical expertise
• Drive documentation standards and ensure clarity in technical specifications

What Will Make You Shine

• Extensive hands-on experience in test automation with Python or Java
• Deep expertise with Selenium or Playwright in large-scale environments
• Strong understanding of AI systems, agentic AI, and their testing challenges
• Proven experience in API and integration testing with tools like Postman, SoapUI, or Karate
• Leadership in test methodologies (BDD, TDD, Agile) and test strategy development
• Ability to manage and review both manual and automated test cases
• Excellent analytical, debugging, and communication skills

Nice to Have

• Experience leading testing in the banking or financial sector
• Background in security testing for enterprise applications
• Experience producing technical documentation and code reviews

How We Hire

Here, we summarize the typical journey to finding a job within EPAM:

• Apply and tell us about yourself
• Go through some standard interviews:

1. General interview with a recruiter
2. Technical interview with our technology experts
3. Manager interview or Offer interview with a hiring manager

• Get ready to join the team

Not sure if you meet all the requirements? No problem. Let’s talk anyway and find out more.

It takes 1 min of application to start the journey with us. Apply now!

About the Role

We are seeking a highly skilled and experienced Senior Network Engineer on behalf of our client to design, implement, maintain, and automate robust data center and enterprise network infrastructures.

This is a critical role requiring a rare technical trifecta: hands-on, expert-level mastery across Cisco, Juniper, and Micas platforms. If you are a seasoned engineer who thrives in complex, multi-vendor environments, loves bridging the gap between physical infrastructure and cutting-edge network automation, and enjoys mentoring junior talent, we want to hear from you.

Key Responsibilities

• Multi-Vendor Infrastructure Management: Oversee, configure, and troubleshoot complex data center and enterprise environments spanning Cisco, Juniper, and Micas platforms.

• Advanced Routing & Switching: Maintain high-availability network architectures utilizing advanced Layer 1–3 protocols ($BGP$, $OSPF$, $MPLS$, $VRF$, and multicast).

• Network Automation: Drive efficiency by developing and implementing automation workflows, infrastructure as code (IaC), and scripting solutions.

• Physical DC Operations: Oversee structured cabling, fiber optics, and physical space planning within the data center environment.

• Security & Compliance: Enforce robust network security postures across multi-vendor environments using AAA, 802.1X, ACLs, and firewalls.

• Monitoring & Documentation: Utilize DCIM and observability tools to ensure uptime, and author comprehensive technical documentation (SOPs, MOPs, and detailed network diagrams).

• Leadership & Mentorship: Act as a technical escalation point and provide guidance, coaching, and mentorship to junior and mid-level engineering staff.

Required Technical Skills & Qualifications

Core Experience

• 7+ years of dedicated experience in enterprise networking and data center operations.

Platform Expertise (Must possess hands-on experience in ALL three)

• Cisco: Catalyst, Nexus, ASR, and ISE.

• Juniper: Junos, EX, MX, and SRX series.

• Micas: Proven hands-on deployment and management experience.

Networking Fundamentals & Protocols

• Deep understanding of Layer 1–3 fundamentals.

• Advanced L3 routing proficiency: BGP, OSPF, MPLS, VRF, and Multicast.

Automation & Tools

• Network Automation: Proficiency with Python, Ansible, and Terraform.

• DCIM & Monitoring: Experience with NetBox, Splunk, ELK stack, or similar observability platforms.

Security & Physical Infrastructure

• Security: AAA, 802.1X, ACLs, and multi-vendor firewall administration.

• Physical Layer: Solid understanding of structured cabling, fiber optic types, and physical data center layout/operations.

Documentation & Certifications

• Strong track record of creating SOPs, MOPs, and network diagrams.

• Minimum Certification: CCNA required.

• Preferred Certification: CCNP, JNCIP, or equivalent multi-vendor certifications are strongly preferred.

Nice-to-Have Skills

• Experience with Ciena or Coriant optical transport systems.

• Familiarity with Nokia platforms.

• Knowledge of SD-WAN architectures and deployments.

• Cloud networking experience (AWS, Azure, or GCP).

• Experience implementing CI/CD pipelines for network infrastructure.

What We Offer

• Competitive salary and comprehensive benefits package.

• Opportunity to work with a highly sophisticated, diverse tech stack.

• A collaborative environment that values continuous learning and technical leadership.

Key Responsibilities

• Design, develop, and maintain robust, scalable, and high-performance applications using Java
• Build and enhance backend services, APIs, and microservices architectures
• Collaborate with frontend developers, QA engineers, and DevOps teams to deliver end-to-end solutions
• Participate in system design discussions, code reviews, and technical decision-making
• Troubleshoot, debug, and optimize application performance
• Ensure code quality through best practices, testing, and documentation
• Contribute to Agile ceremonies including sprint planning, stand-ups, and retrospectives

Requirements

• Degree in Computer Science, Engineering, or related field
• Strong experience in Java development (Spring Boot preferred)
• Proven experience in building scalable and distributed systems
• Familiarity with RESTful APIs, microservices, and cloud environments
• Experience with databases (SQL/NoSQL) and performance tuning
• Understanding of CI/CD pipelines and DevOps practices
• Strong problem-solving skills and ability to work independently

Good to Have

• Experience with containerization tools (Docker, Kubernetes)
• Exposure to cloud platforms (AWS, Azure, or GCP)
• Knowledge of messaging systems (Kafka, RabbitMQ)
• Familiarity with frontend technologies (React, Angular)

Work Location: Central

(EA Reg No: 20C0312)

Please email a copy of your detailed resume to kayla@talentsis.com.sg for immediate processing.

Only shortlisted candidates will be notified.

We are seeking a Software Engineer with strong backend development experience in Java and Spring Boot.. You will design, build, and maintain scalable microservices and deploy them on cloud platforms (AI Cloud or equivalent).

This is a 1-year direct contract role.
Key Responsibilities

• Design, develop, and maintain scalable backend applications using Java and Spring Boot

• Build and deploy microservices on cloud platforms

• Collaborate with cross-functional teams to define and deliver features

• Deploy, monitor, and manage applications in cloud environments

• Troubleshoot, debug, and optimize application performance

• Follow best practices in coding standards, testing, and deployment

• Participate in code reviews and continuous improvement

• Liaise with Mandarin-speaking stakeholders, vendors, and technical teams as required.

Role: MobileCore Network Ops Engineer (4G/5G)
Location: Singapore

We are partnering with a leading organisation to hire a Mobile Core Network OpsEngineer (4G/5G) to support critical telecom infrastructure and ensure seamlessnetwork operations.

About theRole

You will beresponsible for the operation, maintenance, and troubleshooting of 4G/5G corenetwork systems, ensuring high service availability and performance, includingsupport for international roaming services.

KeyResponsibilities

• Manage and support 4G/5G Mobile Core nodes (e.g., IMS, HSS, UDM, SBC, MSS, etc.) to ensure smooth network operations
• Perform system maintenance, including patching, upgrades, and performance optimisation
• Monitor network performance, KPIs, and alarms to maintain service quality
• Troubleshoot and resolve end-to-end network issues across core systems
• Collaborate with local providers and international roaming partners for testing and service assurance
• Implement security hardening and vulnerability management to mitigate risks
• Develop and maintain operational processes and documentation

Requirements

• Degree in Electronics, Communications, Networking, or related field
• Minimum 3-5 years of experience in the Telco industry
• Strong knowledge of 4G/5G core networks and call flows
• Familiarity with protocols such as IMS, VoLTE, SS7, Diameter, SIP, SCTP
• Hands-on experience in network troubleshooting (end-to-end)
• Exposure to VoLTE roaming and IREG testing
• Understanding of network and application security
• Knowledge of IP networking (switching & routing)
• Experience working with Linux and virtualised environments
• Basic scripting/programming skills (e.g., Python, Shell)

UEN: 202329526G

EA Licence: 23S2061

• Well Established Company
• Excellent Welfare and Benefits + Career progression
• Basic $ 4500 to $ 6000 + AWS + VB
• Working location: North-East
• Working Hours: Monday to Friday (8:30am to 5:30pm)
• Must have C / C++

Job Responsibilities:

• Responsible for software prototyping, requirement analysis, design, development, test, system integration and site integration for developed applications
• Design, configuration, test, integration and maintenance of Automation & SCADA Systems and applications
• Provide technical, deployment and commissioning support to Project Teams and Customers
• Maintain and enhance software applications in both functionality
• Provide software support via on-site troubleshooting, testing and tuning of applications, software, network, protocols and communication issues

Requirements:

• Diploma/Degree in Electronics Engineering or Computer Science
• Experienced with two or more languages such as C/C++, C#, Python
• Experienced in at least one scripting language sch as Python, bash, ksh, bat, ps
• Experience in real tome/embedded system
• At least 2-3 years experience in C/C++ and at least 1 full SDLC
• Knowledge/Experience with SCADA protocols, RDBMS, REST, MQTT are desired

Candidates are encouraged to apply this position via Apply Now button with the following information in the resume

• Work experiences and job responsibilities
• Current and Expected salary
• Reason for leaving
• Date of availability
• Education background

We regret that only shortlisted candidates will be contacted.

NG DIAUM YEE (R2198031)

EA Recruitment Pte Ltd

EA License No: 21C0492

The Network Infra Engineer is part of the 3rd Level Telco Infrastructure Operations, providing expert technical support and leadership across core infrastructure under enterprise services.

The role serves as the highest technical escalation point within the infrastructure team, ensuring service stability, secure and compliant infrastructure operations, successful implementation of complex IPVPN solutions, and continuous service improvement across multi-vendor environments (Juniper, Cisco, Fortinet).

Make an Impact by:

• Act as the 24x7 L3 escalation point for Operations and Provisioning teams on IP network issues, ensuring timely resolution of complex faults and service disruptions.
• Lead troubleshooting, root cause analysis, and resolution of complex and chronic network problems, driving preventive and long-term corrective actions.
• Provide technical leadership during major incidents, overseeing incident, problem, and change management from a technical governance perspective.
• Lead design reviews and oversee implementation, expansion, upgrades, and roll-outs of IP network infrastructure across multi-vendor environments.
• Perform risk and impact assessments for hardware/software advisories, conduct preventive maintenance, and ensure infrastructure security through audits and timely patching.
• Monitor and analyze IP network performance, proactively recommending enhancements including software and hardware upgrades to improve stability and performance.
• Work closely with vendors, partners, engineering, and cross-functional teams to resolve escalated technical issues and support new product or feature deployments.
• Prepare network performance and statistical reports and provide technical guidance and training to Tier 1 and Tier 2 engineers to strengthen operational capability.

Skills for Success:

• Minimum of 5 years' experience in similar capacity or in Service provider or carrier-grade environment experience; leadership of technical teams; security/vulnerability management exposure.
• Good knowledge on Telco and enterprise network and technologies.
• Strong understanding of routing protocols like OSPF, BGP, MP-BGP, MPLS, TE, QoS.
• Possess good level of knowledge in Internetworking, IP routing protocols, troubleshooting for MPLS/IP VPN based networks.
• Possess good working knowledge in Cisco and/or Juniper routers architecture.
• Possess good analytical and trouble-shooting skills in technical fault isolation and rectification.
• Ability to lead during major incidents
• Strong communication & stakeholder management
• Candidates with JNCIE/ CCIE/ CCNP/ NSE certification will be added advantage

As a Senior Software Engineer (Web), you will be working on:

• Partner with software engineers and other functions to understand objectives for development delivery efficiency and system resiliency, helping them articulate how specific technical capabilities and best practices will achieve key business outcomes.

• Conduct comprehensive assessments of Agency's existing technical landscapes, workflows, and processes to identify inefficiencies, pain points, and gaps that hinder their goals.

• Collaborate with Agency to identify the most relevant practices (e.g., CI/CD, SRE) for using Core Engineering Products in achieving their goals, considering unique needs and industry best practices.

• Develop transition roadmaps that outline a clear path from the current state to the desired future state, including the adoption of recommended tools and processes.

• Explain complex concepts clearly to various Agency stakeholders, providing actionable recommendations for improving workflows and addressing their challenges, and providing supporting diagrams as needed.

• Support Agency with proof of concept (POC) initiatives to validate solutions, offering hands-on assistance during early implementation phases to enable smooth transitions to full-scale rollouts.

• Collaborate closely with fellow Software Engineers to exchange insights, share tools and scripts, and foster a collaborative environment that supports continuous improvement and knowledge sharing.

What we are looking for:

• 6+ years in an individual contributor software engineering role.

• Experience with React with TypeScript

• Experience with NodeJS is a plus.

• Experience with one or more of Cloud Service Providers such as AWS, Azure, or GCP is a plus

• Strong track record of successful large-scale partner solution implementations, preferably in complex enterprise environments

• Exceptional communication skills with ability to bridge technical discussions between internal teams and external partners

• Experience working in highly secured and air gap systems is a plus (i.e. banking, government systems and similar)

Looking for Full Stack Engineers with at least 7 years of relevant experience (React with Typescript, NodeJS) 

Singaporeans ONLY

**We regret to inform that only shortlisted candidates will be notified. Personal data collected will be used for recruitment purposes**