Total 2,234 test engineer job vacancies in Information Technology category

ITSO - Application Security (Consultant)

Responsibilities and Requirements

• At least 4 years combined work experience in software development, application security andcloud computing (e.g. AWS)
• Familiar with mobile and web application programming interfaces (API) architecture (e.g. REST,SOAP, SSL/TLS)
• Experience in threat modelling and able to establish threat profiles for application projects toidentify, quantify and remediate application security risks
• Strong knowledge of security best practices such as OWASP Top 10, OWASP application securityverification standard
• Familiar with Agile Development process, CI/CD, DevOps concepts, tools (Gitlab, Github,Ansible etc) and how automated security testing can be incorporated into CI/CI pipelines
• Experience on using SAST code scanning tools such as Fortify-on-Demand, Sonarqube, etc
• Track and address security vulnerabilities with timely remediation and patching processes.
• Conduct security awareness training sessions
• Good verbal/written communications, collaboration skills and experience interacting withvarious stakeholders
• Strong analytical, problem-solving and troubleshooting skills, ability to work independently
• Relevant certifications preferred (eg. CISSP, OSCP, AWS security, AWS DevOps Engineer orequivalent etc.)
• Experience in working with Government Commercial Cloud (GCC) preferred.

Reporting to the Firmware Team Lead/Project Manager, the successful applicant will be involved in switching mode power supply development activities such as firmware development, firmware verification, auto test program, prototyping, evaluation and assisting manufacturing in BETA run of the new product.

• Participate in product definition, specification, and requirements analysis working with cross-functional stakeholders.
• Collaboration on firmware architecture and development strategy with a particular focus on wired and wireless networks.
• Design new products in timely manner to meet the product spec, modify existing designs, improve existing products for better performance and /or cost.
• Participate in product definition, specification and requirements analysis working with cross functional stakeholders.
• Design, code, integrate, test, support and enhance software solutions for power conversion systems.
• Perform system integration and validation testing activities, including verification of interoperability within overall solution.
• Assist with evaluating existing and emerging technologies to identify solutions that will reliably operate in a wide range of installed environments.
• Architecting, developing, integrating, and delivering embedded and PC software in a regulated product development.
• Participating in all project lifecycle phases – from design and code development through unit testing, documentation, and release.
• Coaching and guidance to Jr Firmware engineers in evaluation and design.
• Provides technical direction to the team.
• Provide technical support to factory on design related issue.
• Provide support for power supply prototypes and production products.
• Collaborate with remote teams and local teams to support integration work with hardware team.
• Participate in software qualification activities such as SFMEA and code reviews.
• Participate in system integration and validation testing activities, including production/factory support.

Requirements:
Bachelor’s or master’s degree in Computer Science, Computer Engineering, Electrical Engineering, or a related field.

5-7 years of related work experience.

Experience or good understanding of power supply topologies and analog/digital circuitry is a plus.

Familiarity with software development (Microsoft C#, GUI).

Experience with Microchip, TI, ST microcontrollers and DSPs.

Experience interacting with software debugging in an embedded environment.

Familiarity with digital control or firmware for power electronics a plus (PWMs, ADC, digital filter).

Experience in embedded system or signal processing algorithms (DSP) control.

Experience implementing & developing communication stack driver and networking physical protocols (I2C, SPI, RS-485, PMBus, Modbus, Ethernet, etc.).

Some knowledge/experience in IoT, TCP/IP, Websocket, LWIP stack or freeRTOS will be an added advantage.

Comfortable using oscilloscopes, multi-meters, power supplies, etc.

Comfortable reading hardware schematics and data sheets.

Familiarity with version control systems (SVN), and release methodologies.

Familiarity with MISRA, IEC62304 or other coding standards will be an added advantage.

Disciplined and detail-oriented; experience delivering robust, readable code.

Experience in recreating sporadic types of issues/failures using various debugging techniques.

Excellent analytical and problem-solving skills.

About Our Client

Our client is a regional data centre solutions provider that merges engineering excellence with sustainability to deliver world-class facilities across Asia.

Their integrated approach covers concept design to operation, with a focus on energy efficiency, scalability, and high-density computing readiness.

How to Apply

Key Responsibilities

• Lead T&C for fire alarm and integrated life safety systems
• Conduct functional and integrated testing (C&E, BMS, suppression, smoke control, lifts, etc.)
• Prepare commissioning plans, reports, and documentation
• Manage commissioning schedule and site activities
• Supervise engineers/technicians and coordinate with contractors and consultants
• Ensure compliance with SS 645, Fire Code, and SCDF standards
• Support authority inspections and system handover
• Troubleshoot and resolve system faults

Requirements

• Diploma/Degree in Electrical/Electronic Engineering or related field
• Min. 2-5 years in fire alarm commissioning
• Knowledge of SS 645, Fire Code, SCDF requirements, and system integration
• Strong troubleshooting, coordination, and communication skills

Advantage

• Experience in SCDF inspection & handover
• Knowledge of BMS integration (Modbus/BACnet)
• Experience in large-scale projects in Singapore

Company Overview

WSH Experts Pte Ltd, based in Singapore, delivers integrated industry services with innovative solutions. Our experienced global team supports organizations with tailored, effective strategies and expertise across diverse sectors.

Job Summary

The Senior Network Engineer will manage daily network operations, ensuring alignment with organizational growth and operational goals. This role supports infrastructure resilience, security, and performance across networks, servers, storage, middleware, and databases.

Responsibilities

• Perform network administration across heterogeneous environments (production, DR, test) including network and security equipment and telecommunication links to ensure operational stability
• Harden, upgrade, and enhance IT infrastructure components to maintain security and performance standards
• Monitor, assess, schedule, and implement security vulnerability patches on network and product systems to mitigate risks
• Track obsolescence of network systems and plan timely upgrades or replacements to maintain infrastructure reliability
• Manage expiry and renewal of network system passwords and certificates to uphold system security
• Implement network backup operations to guarantee data recoverability and support business continuity
• Execute disaster recovery plans for network systems and conduct regular DR testing and switchover exercises to validate standby equipment usability
• Provide 24x7 support by working in 5 shifts to ensure continuous network availability
• Deliver system and network support for projects, adhering to project timelines and requirements
• Manage infrastructure enhancement projects following established project management guidelines to meet organizational objectives
• Provide second-level network support to resolve incidents and problems within agreed Service Level Agreements (SLA)
• Diagnose network problems, propose, and implement measures to prevent incident recurrence
• Schedule and release network system changes into production environments following change management procedures
• Present and articulate change requests effectively in Change Advisory Board (CAB) or Change Approval Meeting Committee (CAMC) sessions
• Develop and maintain a comprehensive configuration database/library for operating systems, hardware, and software components in production
• Monitor infrastructure system and network capacity, and plan for future growth to ensure optimal resource utilization
• Perform network performance tuning to optimize system efficiency and responsiveness
• Implement IT service management processes aligned with corporate security policies and guidelines
• Develop and maintain technical and process documentation to support IT infrastructure upkeep and knowledge sharing

Required competencies and certifications

• Bachelor’s degree in Information Technology, Information Systems, Computer Science, or related field
• Minimum 15 years of hands-on experience managing network and security equipment such as Routers, Switches, Firewalls, VPN, Load Balancer, DNS, NAC in financial institutions or mission-critical environments
• Proven hands-on network engineering experience
• Certifications in Cisco Certified Network Associate (CCNA), Cisco Certified Network Professional (CCNP) Enterprise, CheckPoint Certified Security Administrator (CCSA), Certified Cloud Security Engineer (CCSE), Palo Alto Certified Network Security Administrator (PCNSA), Palo Alto Networks Certified Network Security Engineer (PCNSE), Fortinet Network Security Expert (NSE) (up to level 4), or Certified Network Defender

Preferred competencies and qualifications

• Familiarity with data centre operations

Responsibilities

• Responsible for Network related incident and change management

• Responsible for the commission, de-commissioning and tech refresh of network devices

• Facilitate in problem solving and collaboration

• Manage the smooth delivery of network operations in accordance with stipulated Service Level Agreements

• Provide firmware updates for network devices

• Ensure network infrastructure complies with security policies

• Prepare and maintain assets to ensure availability and update of capacity reports

• Update process and procedural documents

• Any other ad-hoc duties as required or assigned

Requirements

• Bachelor Degree or Diploma in Information Technology/Information Systems/Computer Science, Business IT or its equivalent

• At least 5 years of experience in administration and implementation

• Good knowledge of the following, but not limited to:

  1. Firewall technologies(high availability, virtual firewall concept) 

  2. IP load balancer

  3. Distribution and core switches

  4. Router configuration(high availability)

  5. LAN and WAN administration

• Good understanding of a services business in a high-tech environment from a supplier, integrator or operator’s perspective

• Strong analytical and problem solving skills, combined with ability to provide quick resolution to problems

• Proficient in troubleshooting skills

• Effective communication skills

• Self-driven and ability to work independently

Licence no: 12C6060

The Data Center Operations Engineer is responsible for the daily operation, maintenance, and optimization of data center infrastructure, including electrical, HVAC, and ELV systems. This role ensures facility reliability, safety, and efficiency through proactive monitoring, risk management, and continuous improvement.

Perform daily operation, maintenance, and routine inspectionsprovement. The position requires hands-on technical ability, strong analytical skills, and strict adherence to operational and emergency procedures.

Perform daily operation, maintenance, and routine inspectionsprovement. The position requires hands-on technical ability, strong analytical skills, and strict adherence to operational and emergency procedures.

of data center electrical, HVAC, and ELV systems, ensuring stable and continuous operation.

Execute scheduled preventive maintenance (PM) plans and handle system faults promptly and accurately.

Conduct facility safety, risk, capacity, and availability management, continuously optimizing systems to improve operational efficiency and cost-effectiveness.

Maintain infrastructure data accuracy (100%), regularly check alarm configurations, and ensure monitoring platform stability and reliability.

Conduct facility inspections per company requirements, including equipment status checks, MOP (Method of Procedure) review, and maintenance tracking.

Respond rapidly to incidents and emergencies following EOP (Emergency Operation Procedures) and incident management standards; provide on-site support and reporting.

Analyze root causes of incidents, conduct post-event reviews, and summarize lessons learned for continuous improvement.

Familiarize with the power distribution, cooling, and ELV architecture within assigned data centers; quickly locate and resolve faults when issues occur.

Prepare and implement change MOPs independently, ensuring no incidents result from planned changes.

Participate in optimization and upgrade projects, ensuring smooth on-site execution and coordination.

Propose technical improvements or modification plans for infrastructure monitoring, capacity, safety, and availability.

Provide technical guidance, mentorship, and training for frontline operation staff.

Ensure quick response and arrival per incident management policy.

Strictly comply with all operational procedures, safety policies, and company regulations.

Complete other assignments as defined in the Service Contract, Outsourcing Specification, or as required by the company or project team.
Qualifications

Education: Full-time college diploma or above (Associate Degree or higher).

Major: Electrical Engineering, HVAC, or other related disciplines.

Experience: Minimum 3 years of relevant experience in data center facility operation and maintenance.

Strong understanding of data center infrastructure systems, including electrical distribution, cooling, ELV, and monitoring systems.

Familiar with mainstream facility brands and models, capable of identifying differences and proposing optimization suggestions.

Demonstrated ability to conduct root cause analysis and implement effective preventive actions.

Capable of independent MOP preparation and execution with zero error rate.

- Provide technical supports for pre and after sales service to Sales & Project Department for misc Critical Support Systems for Data Centres (mainly CRAC and UPS)

- Provide technical supports for Service Department and assist in troubleshooting for service & maintenance issue related matters and provide solutions

At Alcon, we are driven by the meaningful work we do to help people see brilliantly. We innovate boldly, champion progress, and act with speed as the global leader in eye care. Here, you’ll be recognized for your commitment and contributions and see your career like never before. Together, we go above and beyond to make an impact in the lives of our patients and customers. We foster an inclusive culture and are looking for diverse, talented people to join Alcon.

As a Data Scientist under Manufacturing Science & Technology (MS&T) Department, you will be primarily responsible for driving automation initiatives within the Manufacturing Science & Technology team by managing system changes, enhancements, and validations while ensuring compliance with project documentation and SOPs. Supports SMART manufacturing projects through data analysis, reporting tool administration, and system support to enable efficient, data-driven operations.

In this role, a typical day will include:

• Manage system change and related enhancement/bug fix, review project documentation and related SOPs and perform system validation
• Analyzes data to generate insights and predictions
• Maintain, support and administrate reporting tool and related applications.
• Lead and support SMART Manufacturing/Automation initiatives related projects. Develop/review project documentations and related SOPs.
• Perform system/software validation

WHAT YOU’LL BRING TO ALCON:

• Bachelor degree of related fields (computer science or equivalent)
• Proficient in any programming language is required for this role
• Minimum 3 - 5 years relevant working experience in IT software development lifecycle, system implementation and system maintenance and supports.
• Hands on knowledge on automation engineering, PLC/SCADA/MES systems, Microsoft SQL/Oracle/Access database/Python/R/Microsoft Visual Basic/C#/ASP.net programming and IT (Infrastructure and Network).
• Knowledge on 21 CFR Part 11 (computerized system validation) is preferred but not a MUST
• Training will be provided for those without experience

HOW YOU CAN THRIVE AT ALCON:

• Good team player
• Enjoy working with various cross functional team across manufacturing site

Alcon Careers

See your impact at alcon.com/careers

Responsibilities

• Provide L3 Network and Security support.
• Support L2 Engineer to streamline incident calls and ensure service level agreements are met.
• Perform Support to L3 escalations of all network security across Fortinet,F5 Load Balancer,McAfee Proxies,Checkpoint.
• Assist with the documentation of standard operating procedures relating to installations and fixes.
• Act as coach and mentor to more junior Implementation Engineers and Technicians.
• Assume responsibility for the co-ordination of the activities of the Engineers, in line with performance targets.
• Included in higher complexity design work, with input to the design expected.
• Expected to take ownership of relevant technologies according to domain or specialization.

Requirements

• 8 – 10 years of experience in network operations in related industries or equivalent.
• CCIE or other expert level technical certifications equivalent or desirable.
• ITIL®v4 Foundation certification would be an advantage.
• In-depth hands-on working experience with routers, switches, firewalls, ISEs, Load balancers, Web proxies, packet captures, DNS, wireless and etc not limiting to brands such as (Cisco, Checkpoint, F5, Arista,Fortinet, Juniper, Akamai, McAfee, Infoblox, Corvil, Riverbed,
• Good understanding of TCP/IP, DNS, DHCP, GTM, LTM VPN, MP-BGP, OSPF, MPLS, Cisco ACI,SDWAN, Wireless technology; DWDM (ADVA), Multicast, HSRP, Spanning tree, VRF and DDOS.
• Experience with network tools and technologies such as Splunk, NetFlow, packet captures, ServiceNow, JIRA, and SMARTs.
• Ability to work in a fast-paced operational environment.
• Strong interpersonal skills
• Excellent Team Player

• Provide technical support, troubleshooting, and project management for IP-based Access Control Systems, Time Attendance Systems, Video Intercom Systems, and Home Automation Solutions.

• Design wiring diagrams and perform system configuration, testing, and commissioning.

• Conduct on-site training for clients, vendors, and project team members.

• Implement and configure internet and Wi-Fi settings for smart home and automation systems.

• Install, maintain, and support IT infrastructure services, including Active Directory (AD), DNS, DHCP, DFS, WSUS, and IIS.

• Configure and implement wired and wireless network solutions.

• Ensure projects are delivered on time and in accordance with technical requirements.

We are partnered with an established financial services organisation to look for a Technical Lead (Java / Cloud-Native Platforms) with a deep background in enterprise Java ecosystems and modern cloud-native architectures. In this role, you will act as the engineering gatekeeper and architectural governor for high-volume, internet-facing web and mobile channels.

This is not a day-to-day coding role; instead, you will focus heavily on code quality governance, low-level design validation, DevOps strategy, and technical risk mitigation across both internal engineering teams and external delivery vendors.

Responsibilities:

• Review and validate internal and vendor-delivered codebases to enforce strict standards around modularity, scalability, performance, and the reduction of technical debt.
• Review low-level design documents (including class/sequence diagrams, API contracts, and database ER models) and ensure actual implementation perfectly matches theoretical design.
• Define and oversee branching, merging, and baselining strategies while monitoring adherence to automated CI/CD pipelines and deployment standards.
• Proactively identify technical risks and ensure all applications strictly align with regional financial regulatory compliance, data privacy laws, and OWASP security standards.
• Provide hands-on technical guidance, conduct merge request reviews, and mentor developers to foster a culture of technical accountability.
• Partner with IT Planning and Enterprise Architecture teams to ensure platforms align with the long-term corporate technology roadmap.

Requirements:

• 10 years of professional IT delivery experience, with a significant track record inside a Financial Institution like a Bank, FinTech, or Tier-1 Financial Vendor
• Deep technical expertise in enterprise Java, Spring Boot microservices, and modern integration patterns including Kafka, IBM MQ, or RabbitMQ.
• Strong practical experience with cloud-native deployment patterns, Docker, Kubernetes, and GitOps frameworks utilizing ArgoCD.
• Proven track record delivering secure, internet-facing web and mobile applications with deep knowledge of SSO, OIDC, SAML, MFA, and OWASP standards.
• Solid understanding of relational and NoSQL databases, alongside exposure to payments or cash management domains.
• Assertive and highly collaborative communication profile, capable of driving architectural standards and confidently auditing external vendor deliveries.

We're building an AI-powered research platform for institutional investors. Our platform turns vast amounts of market, alternative, and proprietary data into actionable intelligence — powered by AI agents that depend on clean, reliable, real-time data to do their job.

We need someone to own data. Not manage a team that does data. Own it — from finding the right sources, to getting them flowing, to making sure they stay healthy at scale.

Today we ingest from hundreds of sources. That number is growing fast. The sources are diverse: real-time market feeds, regulatory filings, news, social sentiment, alternative datasets, and proprietary client data. Some are free APIs. Some are $10K/month enterprise contracts. Some are clients pushing their own data into our platform. Every one of them is different, and most of them will break in ways you don't expect.

You'll evaluate vendors, negotiate deals, build integrations, monitor quality, track costs, and make the call on what's worth paying for. When something breaks at 2 AM, you'll know why before the alert finishes firing.

This is an end-to-end ownership role. No handoffs.

Responsibilities

• Build and maintain integrations with a large and growing number of external data sources — APIs, WebSockets, file drops, streams, scrapers, and formats you haven't seen yet
• Evaluate and compare data vendors across quality, reliability, coverage, cost, and terms of service
• Negotiate contracts and manage commercial relationships with data providers
• Design and operate high-throughput ingestion pipelines handling mixed workloads (real-time, near-real-time, batch, event-driven)
• Build monitoring that tells you — before anyone else — when data is late, wrong, incomplete, or drifting
• Manage data quality at scale: anomaly detection, cross-source validation, schema drift detection, gap filling
• Handle both structured data (time-series, tabular) and unstructured data (documents, text, images) with appropriate extraction and storage
• Track costs per source, usage per consumer, and ROI — recommend what to keep, upgrade, or cancel
• Build tooling that makes adding the next data source faster than the last one
• Use AI tools aggressively in your daily work — for code generation, testing, documentation, anomaly analysis, and anything else that makes you faster

Requirements

You've done this before:

• 5+ years building data pipelines that run in production, 24/7, with real SLAs
• Deep hands-on experience with SQL databases and time-series data
• Python as your primary language, comfortable with async programming
• You've integrated with dozens of external APIs and dealt with the reality of unreliable vendors, changing schemas, rate limits, and bad documentation
• You've built monitoring and alerting for data systems — not as an afterthought but as part of how you work

You think about the whole picture:

• You don't just connect to an API. You think about what happens when it goes down, when the schema changes, when the data is wrong, when the bill doubles
• You understand that data has a cost and a value, and not every source is worth keeping
• You've worked with data vendors commercially — contracts, pricing tiers, usage negotiations

You use AI daily:

• AI coding tools are part of your workflow today, not something you're curious about
• You can articulate specifically how AI makes you faster and where it doesn't help
• You'd be frustrated if you couldn't use AI in your work

Nice to have

• Experience with financial market data
• Experience with streaming systems (Kafka or similar) at scale
• Vector database or embedding pipeline experience
• Experience with unstructured data extraction (PDFs, documents, NLP)

Perks & Benefits

• Senior individual contributor role with full ownership of the data domain
• Direct access to leadership — no bureaucracy, fast decisions
• AI tools provided and encouraged across all work
• Remote-friendly, async-first
• Compensation commensurate with experience

Job Description: 

1) Provide technical support and maintenance for mainframe tools including JOBSCAN, ChangeMan SCM and IBM ADFz bundle products such as FILE MANAGER & DEBUG Software

2) Support the transition from ChangeMan to IBM ADFz bundle products

3) Configure and maintain Software Configuration Management (SCM) systems

4) Design and implement CI/CD pipelines for mainframe applications

5) Troubleshoot and resolve technical issues related to mainframe development tools

6) Collaborate with development teams to ensure smooth application delivery

7) Document processes, procedures and system configurations

8) Any other tasks related to software tool administration and maintenance as assigned

Working Experience and Skill Requirement:

1) Minimum 3 years of relevant working experience in technology related to above mentioned software is preferred

2) Hands-on experience with ChangeMan SCM, including configuration management and version control is preferred

3) Proficiency in COBOL, JCL, and DB2

4) Strong knowledge of mainframe development tools and technologies

5) Experience in scripting using REXX, JCL or similar mainframe scripting languages

6) Demonstrated problem-solving and analytical skills

Zenith Infotech (S) Pte Ltd. was started in 1997, primarily with the vision of offering state-of-the-art IT Professionals and solutions to various organizations and thereby helping them increase their productivity and competitiveness. From deployment of one person to formation of whole IT teams, Zenith Infotech has helped clients with their staff augmentation needs. Zenith offers opportunity to be engaged in long term projects with large IT savvy companies, Consulting organizations, System Integrators, Government, and MNCs.

EA Licence No: 20S0237

Job:

• Design, develop, and maintain secure, scalable applications.

• Work in Agile squads with engineers, analysts, and domain experts to deliver high-impact solutions.

Role:

• Build backend services and APIs using Java/Spring Boot for mission-critical systems.

• Follow secure coding practices.

• Participate in design discussions, write clean, maintainable code, and conduct code reviews.

• Integrate with databases, middleware, and external systems.

• Ensure performance, scalability, and reliability.

• Write unit/integration tests.

• Support CI/CD pipelines, deployment, and troubleshooting in prod/UAT.

• Work closely with business analysts, QA, DevSecOps, and project managers in Agile sprints.

Requirements:

• Degree in Information Technology, Computer Science, Computer Engineering or related field.

• Has 2 to 5 years professional Java development work experience.

• Fresh grads with strong projects/internships also considered for Junior role.

• Strong Java 8+, Spring Boot, REST APIs, SQL, Git. Experience with JPA/Hibernate, Maven/Gradle.

• Familiar with Linux, Docker, Jenkins/GitLab CI. Basic understanding of microservices architecture.

• Problem-solver, good at debugging, attention to detail.

• Can work independently and in a team.

• Good to have Spring Cloud, Kafka/RabbitMQ, Elasticsearch Angular/React for full-stack exposure.

• Cloud experience: AWS, Azure, or GCP

• This role will need to secure a clearance, due to the sensitivity of the project.

To apply:

Please send your latest CV in MS Word format to jennifer@zenithinfotech.com.sg

Appreciate the interest of all applicants; however only shortlisted candidates will be notified.