Total 3,695 software test engineer job vacancies in Information Technology category in Singapore

About Airwallex

Airwallex is the only unified payments and financial platform for global businesses. Powered by our unique combination of proprietary infrastructure and software, we empower over 150,000 businesses worldwide – including Brex, Rippling, Navan, Qantas, SHEIN and many more – with fully integrated solutions to manage everything from business accounts, payments, spend management and treasury, to embedded finance at a global scale.

Proudly founded in Melbourne, we have a team of over 1,700 of the brightest and most innovative people in tech across 26 offices around the globe. Valued at US$6.2 billion and backed by world-leading investors including Visa, Airtree, Blackbird, Sequoia, DST Global, Greenoaks, Salesforce Ventures, Lone Pine, and Square Peg, Airwallex is leading the charge in building the global payments and financial platform of the future. If you’re ready to do the most ambitious work of your career, join us.

Airwallex is a rapidly growing fintech unicorn, founded in 2015 and now flourishing at the Series E financing stage.  With a global footprint across Asia-Pacific, Europe, North America, and APAC, we specialize in providing diverse financial payment solutions for B2B merchants, empowering businesses to operate seamlessly anywhere, anytime.

Core Responsibilities

As a Senior Software Engineer, you will be responsible for designing and building the core services that power our platform. You will tackle complex technical challenges, ensuring our systems remain highly available, scalable, and efficient as we continue to grow globally.

• Architecting Scalable Systems: Design and implement robust, high-performance backend services capable of handling high-volume traffic and complex data workflows.

• Optimizing Distributed Infrastructure: Build and maintain reliable internal and external-facing systems, focusing on low latency and high availability.

• Enhancing Data Retrieval: Develop and optimize search and data platforms to ensure fast and accurate information retrieval across distributed datasets.

• Driving Engineering Excellence: Lead technical initiatives, perform deep-dive code reviews, and mentor junior engineers to maintain high standards of code quality and system design.

• Cross-Functional Collaboration: Partner with Product, DevOps, and Security teams to translate business requirements into scalable technical solutions.

What You’ll Do

• Solve High-Scale Challenges: Address intricate, organization-wide problems by leveraging modern technologies in distributed systems, reactive programming, and workflow orchestration.

• Build Mission-Critical Infrastructure: Develop shared libraries and frameworks that eliminate technical bottlenecks and accelerate the pace of innovation across the entire engineering organization.

• Technical Strategy: Conduct evaluations of emerging technologies and guide long-term architectural decisions to ensure global resilience and efficiency.

Minimum Qualifications

• Technical Expert: You have strong proficiency in backend programming languages such as Java, Go, Rust, or Python and their associated ecosystems.

• Distributed Systems Specialist: You have a deep understanding of microservices architecture, including service discovery, load balancing, and inter-service communication.

• Database & Storage Expert: You possess hands-on experience with relational and non-relational databases (e.g., PostgreSQL, Redis, Elasticsearch) and understand data consistency and performance tuning at scale.

• Cloud & Infrastructure Literate: You are comfortable working with cloud providers (AWS, GCP, or Azure) and container orchestration tools.

• API Specialist: You have extensive experience in API design and lifecycle management, with a firm grasp of security protocols (OAuth, JWT, mTLS).

• Clear Communicator: You can articulate complex technical concepts to both technical and non-technical stakeholders in a multicultural environment.

Good to have

• Performance Engineering: Experience with advanced profiling (e.g., flame graphs) and system-level optimization.
• Observability & Reliability: Familiarity with monitoring, tracing, and logging tools (Prometheus, Jaeger, ELK) to maintain system health.
• Open Source Contributor: You actively follow or contribute to the open-source community and enjoy bringing cutting-edge industry trends into your work.
• Familiarity with Kubernetes and Docker.

Job Description:

• Design and develop SDK drivers and Harmony/Android-based solutions in the audio domain, including end-to-end audio dynamic architectures.
• Implement and optimize intelligent voice algorithms, audio 3D codecs, and 3D sound effect algorithms, with a focus on efficiency and performance.
• Conduct audio quality (AQ) effect tuning, support customer integration, and deliver high-quality audio solutions under HiSilicon brand.
• Collaborate with cross-functional teams to drive product development from design to deployment.

Required Skills:

• Bachelor's or Master's degree in Computer Science, Electronic Engineering, or related filed
• Solid programming foundation in C/C++, familiar with Linux or embedded operating system environment programming.
• Strong software development skills, familiar with software design principles, development processes, and project delivery.
• Experience in software solution development for audio systems, codecs, or related areas.
• Basic knowledge of audio and complex software modules

Bonus Points:

• Experience in basic algorithm development such as embedded system drivers and AI protocol stacks
• Working knowledge of DSP algorithm optimizations
• Experience in products such as mobile phones, smart watches, smart screens, set-top boxes, or other embedded devices
• Android/Linux system experience is an added advantage.

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

Responsibilities

• Responsible for the design, programming, debugging, testing, modifications, deployment, operation, and maintenance of the applications.

• Responsible for developing digital products or features to support operations.

• Ensure that the developed modules/deliverables meet expectation, quality standards and target schedule.

• Effectively document issues and provide regular status and progress updates towards project milestones.

• Maintain and update the user guide to reflect system enhancements.

Requirements

• At least 1 year of hands-on working experience with Node.js, ReactJS, TypeScript, Shell Scripting, MySQL, NoSQL, Object-Relational Mapping (ORM) or other similar tech stack

• Bachelor’s Degree, Post Graduate Diploma or Professional Degree in Engineering (Computer/Telecommunication), Computer Science/Information Technology or an equivalent.

• Able to understand and take over existing implementations effectively.

• Able to document project know-how regularly and share with the team (system documentation, incident reporting, etc.).

• Experienced in internet technologies, application servers, and databases.

• Familiar with Git, Design Patterns, and Unit Testing.

• Experience with repositories and CI/CD pipelines such as GitLab, Bamboo and BitBucket

• Experience developing in Mac/Linux environment.

• Experience with AWS (Certification preferred), including foundational services like EC2, S3, and Amazon RDS.

• Strong verbal and written communication skills, able to transmit information in a clear way.

• Problem-solving skills with a high level of initiative.

• A team-player who takes ownership and is highly collaborative.

• Ability to work under pressure and meet tight deadlines.

• A quick learner who can work with minimum supervision.

Good-to-haves

• Experience with Amazon Connect, Cloudwatch, Code Pipeline, Lambda, CloudFront, Amazon SES are a plus.

• Familiarity with a serverless setup is a plus.

• Experience and certifications in cloud infrastructure deployment (Azure or Google Cloud).

• Working experience in Agile and UX development environment is an added advantage.

Primary Purpose

The Senior Software Engineer is responsible to develops software based on design requirements and ensure software and subroutines are working to specification, program codes have conformed to standards and are delivered with quality meeting schedule and requirements.

Responsibilities

Project Delivery

• Analyse process/program specifications & translate specifications to program codes, conforming to program guidelines and programming best practices

• Make changes to configurable items, which include hardware, software, documentation, etc. It covers configuration management planning, configuration identification, configuration controls & audits

• Develop unit test package, execute tests & document test results to ensure the quality of the program

• Assist in the integration testing, system testing, User Acceptance Test ( UAT) & implementation activities to fix the reported problems/bugs of the system to ensure the smooth execution of programs in the production environment

• Investigate all reported problems/errors & initiate amendments & testing so that the system can operate correctly &efficiently

• Prepare & maintain up-to-date system documentation.

• Analyse functional requirements to translate into application design using established design methodologies and guidelines

• Ensure codes comply with NCS security guidelines

Team Work

• Work with team lead to ensure design and programme codes conform to architecture and design standards, and that design satisfies functional and system requirements

• Participate in requirements gathering; work with Business Analysts in reviewing and refining functional specifications

• Participate in peer reviews to improve project quality

Requirements

·      Typically 5-7  years’ experience with substantial project work in software development

·      Experience in Peoplesoft Financial.

·      Diploma or Degree in Computer Science,Information Technology, Management of Information Systems or equivalent

·      Possess initiative and disposition with a strong commitment and orientation towards results and high quality standards

·      Strong problem solving skills and ability to think out of the box

·      Team player with strong communication and interpersonal skills

ASTEK has been providing IT and Engineering solutions for some of the world’s largest industrial and services groups for more than 35 years with 10,000 passionate experts in 22 countries throughout Europe, APAC, Middle East and the Americas

Currently, we are looking for Senior Software Engineer which would be based in Singapore

Responsibilities:

• Bachelor's degree with minimum 5 years of relevant experience in software development, DevSecOps, and production/platform support.

• Proficient in modern programming languages (C#, TypeScript/JavaScript) with hands-on experience in Test Driven Development (TDD).

• Solid understanding of SOLID principles, design patterns, and data models.

• Hands-on experience with building and integrating REST APIs and webhooks.

• Familiarity with CI/CD pipelines, Git, and infrastructure-as-code principles.

• Experience with identity and access management (SSO, OAuth, SCIM).

• Familiarity with AWS EKS, and Snowflake.

• Proven problem-solving, analytical, communication, leadership, and stakeholder management.

Activate Interactive Pte Ltd (“Activate”) is a leading technology consultancy headquartered in Singapore with a presence in Malaysia and Indonesia. Our clients are empowered with quality, cost-effective, and impactful end-to-end application development, like mobile and web applications, and cloud technology that remove technology roadblocks and increase their business efficiency.

We believe in positively impacting the lives of people around us and the environment we live in through the use of technology. Hence, we are committed to providing a conducive environment for all employees to realise their full potential, who in turn have the opportunity to continuously drive innovation.

We are searching for our next team members to join our growing team.

If you love the idea of being part of a growing company with exciting prospects in mobile and web technologies that create positive impact on people’s lives, then we would love to hear from you.

Co-Development Business Unit is hiring for Full Stack Software Engineer

You will work in Singapore Government Agencies

Internal Code: A26136

This is a fixed term contract role. The engagment is 2 years.

What will you do?

• Able to communicate well, strong conviction in the Government's mission and good user management skills
• Experienced in running major projects with strong management skills
• Can think of the big picture while being able to deep-dive into details if required
• Able to hands-on and go onsite e.g. project sites if required.
• Responsible for designing, developing, deploying, and maintaining scalable, high-performance, and secure web applications
• The role requires expertise in frontend and backend development, cloud technologies, DevOps automation, and application security. 
• Engineers must work in an agile, DevOps-driven environment, ensuring high software quality, security, and maintainability. 
• Take full ownership of end-to-end application development, integrating frontend, backend, and cloud infrastructure.
• Design, develop, and maintain responsive, accessible, and performant web applications.
• Implement modern frontend architectures, ensuring reusability, scalability, and security. 
• Develop high-performance backend services and APIs, ensuring reliability, security, and observability.
• Work with Quality Assurance (QA) engineers to ensure automated test coverage and proactively fix bugs and defects.
• Optimize full-stack CI/CD deployment strategies, ensuring seamless and automated releases.
• Work with DevOps teams to automate infrastructure provisioning, monitoring, and cloud deployments.
• Ensure full-stack security, including authentication, authorization, API security, and frontend security best practices.
• Continuously evaluate and adopt emerging technologies to improve application performance and developer productivity.

What are we looking for?

• Ability to build, architect, & deliver end-to-end GIS-enabled tools that ingest data from various government sources, validate and transform it, and render front-end maps and dashboards.Develops robust APIs, authentication, and data access controls; implements GIS data models (PostGIS/GeoServer/ArcGIS) and integrates with cloud deployment, CI/CD, and testing pipelines.
• Delivers performant, accessible map-based visualizations and tools (e.g., interactive maps, layers, filters) that enable analysts and decision-makers to explore geospatial data.

What do we offer in return?

• Fun working environment
• Employee Wellness Program
• To work in Singapore Government Agencies projects
• We provide structured development framework and growth opportunities. (We are a “SHRI 2025 Gold winner” in “Learning & Development; Coaching & Mentoring”)

Why you'll love working with us?

If you are looking for opportunities to collaborate with leading industry experts and be surrounded by highly motivated and talented peers, we welcome you to join us. We provide all employees with equal opportunities to grow and develop with us. We believe your success is our success.

Activate Interactive Singapore is an equal opportunity employer. Employment decisions will be based on merit, qualifications and abilities. Activate Interactive Pte Ltd does not discriminate in employment opportunities or practices on the basis of race, colour, religion, gender, sexuality, national origin, age, disability, marital status or any other characteristics protected by law.

Protecting your privacy and the security of your data are longstanding top priorities for Activate Interactive Pte Ltd.

Your personal data will be processed for the purposes of managing Activate Interactive Pte Ltd’s recruitment related activities, which include setting up and conducting interviews and tests for applicants, evaluating and assessing the results, and as is otherwise needed in the recruitment and hiring processes.

Please consult our Privacy Notice () to know more about how we collect, use, and transfer the personal data of our candidates. Here you can find how you can request for access, correction and/or withdrawal of your Personal Data.

Key Responsibilities

• Design, develop, and deliver scalable, well-tested features across the full stack, including responsive portal components using Next.js, Redux, and JavaScript, as well as backend services built with Java, Python, or C++
• Participate actively in Agile ceremonies such as sprint planning, development, code reviews, and continuous improvement initiatives
• Collaborate closely with QA, UI/UX, and DevOps teams to ensure robust technical solutions and intuitive user experiences
• Develop and maintain unit and integration tests to support automated testing and CI/CD pipelines
• Investigate, troubleshoot, and resolve software defects and production issues in a timely manner
• Contribute to code reviews, maintain technical documentation, and adhere to secure coding standards
• (Optional) Support system architecture design and integration with government authentication or data exchange platforms

Requirements

• Minimum 4–6 years of hands-on experience in software development
• Proficiency in at least one backend language: Java, Python, or C++
• Experience building front-end applications using Next.js, Redux, and JavaScript/TypeScript
• Strong understanding of RESTful API design, object-oriented programming, and secure coding practices
• Familiarity with Agile methodologies and tools such as Jira, GitLab, and Confluence
• Strong analytical and problem-solving skills, with the ability to work both independently and collaboratively

Nice to Have

• Experience with cloud platforms such as AWS or Azure
• Exposure to real-time systems or IoT environments

Work Location: One North

(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.

Role Overview

We are seeking a highly experienced Software Design Lead to drive the development of next-generation network switch software. This role focuses on building and optimizing Network Operating Systems (NOS), particularly SONiC with deep involvement in C/C++ development, embedded Linux, networking protocols, and switch ASIC integration.

Responsibilities

• Lead design and development of NOS (SONiC based) features and modules
• Develop high-performance software in C/C++ for control plane and system components
• Work on embedded Linux systems, including kernel-level and system programming
• Implement and optimize networking protocols (L2/L3) such as BGP, OSPF, VLAN, VXLAN
• Interface with switch ASICs (e.g. Broadcom, Marvell) to program forwarding behavior
• Design and maintain HAL (Hardware Abstraction Layer) for hardware-software integration
• Debug complex system issues across software, network stack, and hardware layers
• Lead and mentor engineers, ensuring high-quality architecture and code standards

Requirements

• Strong experience with NOS (SONiC based)
• Expert-level programming in C/C++ (low-level, high-performance systems)
• Deep knowledge of Linux OS (kernel, networking stack, drivers)
• Solid understanding of networking protocols (L2/L3, routing, switching)
• Hands-on experience with switch ASIC programming and hardware interaction

Preferred Background

• Experience in enterprise networking / data center switching
• Exposure to control plane vs data plane design
• Familiarity with Broadcom SDK or similar ASIC platforms
• Prior experience leading engineering teams

• Examining and solving production problems associated with the Oracle platform.
• Addressing customer-reported technical problems.
• Creating codes to confirm the proper functioning of connections.
• Conducting data transfers and managing third-party connections.
• Designing and developing distributed applications using Oracle platform
• Writing efficient, scalable, and reliable code in programming languages such as C, C++, Java, or COBOL to implement application logic
• Setting up and managing the Oracle environment involves configuring application servers, resource management, and performance optimization.
• Collaborating with cross-functional teams, including business analysts, system administrators, and database administrators, to gather requirements, design application architecture, and ensure seamless integration
• Developing and maintaining documentation for applications, including code comments, technical specifications, and system configurations
• Performing unit testing, debugging, and troubleshooting to ensure the applications meet functional and performance requirements
• Conducting performance tuning and optimization of Oracle applications
• Keeping up to date with the latest Oracle platform updates, technologies, and best practices in distributed application development, RTPM
• Providing technical support and guidance to other team members and stakeholders
• Participating in code reviews and ensuring adherence to coding standards and software development best practices
• Bachelor's degree in Computer Science, Software Engineering, or a related field
• Proven experience in developing distributed applications using Oracle
• Strong proficiency in programming languages such as C, C++, Java, or COBOL
• Familiarity with middleware concepts, distributed computing, and service-oriented architecture (SOA)
• Experience in performance tuning and optimization of Oracle applications
• Knowledge of database systems and SQL
• Excellent problem-solving and debugging skills
• Strong communication and teamwork skills
• Ability to work independently and manage multiple priorities in a dynamic, deadline-driven environment

Key Responsibilities:

• Deploy prototype systems in Video Analytics, Biometrics, and AI
• Evaluate and report on project performance
• Stay updated on emerging technologies and industry trends
• Ensure product quality through unit testing and adherence to architecture, coding, and UX/UI standards
• Produce functional and detailed design documentation
• Design and develop reusable components

Requirements:

• Bachelor’s degree in Computer Science, Software Engineering, or related field
• 8 years of relevant experience
• Proven experience leading software engineering teams
• Programming: Golang, .NET / .NET Core
• Frameworks: React
• DevOps/Collaboration: GitHub, GitLab
• Containerization: Docker, Kubernetes

Location: Tampines

(EA Reg No: 20C0312)

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

Only shortlisted candidates will be notified.

About the Role:

We are looking for a Software Developer to design, develop and maintain scalable, high-performance, and secure web applications. You will work across frontend and backend technologies while leveraging cloud platforms, DevOps automation, and modern engineering practices.

Working Hours: Mon-Fri, Office hours
Working Location: Central
Salary package: UP to $9,800 (basic) + AWS
Job Type: Contract

Key Responsibilities:

• Design, build, and maintain scalable, secure, and high-performance web applications covering both frontend and backend components.
• Develop backend APIs and manage databases to support application functions and data processing.
• Create responsive and user-friendly frontend interfaces using modern frameworks.
• Handle data processing, transformation, and integration across multiple systems.
• Ensure best practices for application security, scalability, and performance are followed.
• Troubleshoot and fix technical issues to keep systems running smoothly.

Requirements:

• Degree in Computer Science, Information Technology, or related field
• Minimum 5 years of experience in frontend and backend
• Strong experience in frontend technologies and frameworks (React.js), backend development using Node.js and building RESTful API or GraphQL services.
• Familiarity with cloud platforms (AWS, Azure, Goolge Cloud) and container technologies such as Docker or Kubernetes
• Strong problem-solving skills and ability to work independently or within a team.
• Experience working in enterprise or government environments

By submitting your resume, you consent to the collection, use, and disclosure of your personal information per ScienTec’s Privacy Policy (scientecconsulting.com/privacy-policy).

This authorizes us to:
• Contact you about potential opportunities.
• Delete personal data as it is not required at this application stage.

All applications will be processed with strict confidence. Only shortlisted candidates will be contacted.

Ting Soo Leng (Tiffany) l Outsourcing Team
ScienTec Consulting Pte Ltd - 11C5781

Job Summary

Develop and maintain software solutions using Python and DevOps practices, leveraging strong Linux and on-premises infrastructure expertise to support efficient CI/CD pipelines and cloud-native environments.

Responsibilities

• Develop and maintain software applications using Python, applying object-oriented programming concepts to deliver scalable solutions
• Design, implement, and manage CI/CD pipelines using Jenkins to automate software build, test, and deployment processes
• Administer and troubleshoot Linux-based systems to ensure stable on-premises infrastructure operations
• Execute SQL commands and analyze data to support application functionality and data integrity
• Deploy and manage cloud-native technologies such as OpenShift and Kubernetes to optimize container orchestration and application scalability
• Collaborate with cross-functional teams to integrate DevOps practices and improve software delivery efficiency

Job Summary

Develop and maintain software solutions using Python and DevOps practices, leveraging strong Linux and on-premises infrastructure expertise to support efficient CI/CD pipelines and cloud-native environments.

Responsibilities

• Develop and maintain software applications using Python, applying object-oriented programming concepts to deliver scalable solutions
• Design, implement, and manage CI/CD pipelines using Jenkins to automate software build, test, and deployment processes
• Administer and troubleshoot Linux-based systems to ensure stable on-premises infrastructure operations
• Execute SQL commands and analyze data to support application functionality and data integrity
• Deploy and manage cloud-native technologies such as OpenShift and Kubernetes to optimize container orchestration and application scalability
• Collaborate with cross-functional teams to integrate DevOps practices and improve software delivery efficiency

Responsibilities:

• Lead the full sales cycle for digital and IT services, from generating leads to closing deals.
• Actively engage in public and private RFPs, tenders, and government procurement platforms (such as GeBIZ).
• Prepare customized proposals, quotations, technical documents, and presentation materials.
• Act as the technical advisor throughout the sales process, translating client needs into effective and scalable solutions.
• Showcase product features through demonstrations, prototypes, and walkthroughs.
• Collaborate with project teams to accurately scope solutions and align expectations with deliverables.
• Ensure client satisfaction by managing upselling, renewals, and handling escalations professionally.
• Monitor and manage sales pipelines, providing regular updates on key metrics and achievements.
• Build and maintain strong client relationships based on trust, transparency, and reliable delivery.
• Evaluate and communicate the technical feasibility and architecture of proposed solutions, such as CMS platforms, custom applications, and experiential technologies.
• Act as a bridge between sales and development teams to ensure solutions are technically viable and properly scoped.
• Coordinate with vendors and internal technical teams to gather requirements, define system specifications, and ensure seamless integration.

Qualifications:

• Degree or diploma in Information Technology, Computer Science, Digital Media, or related disciplines.
• 1 to 3 years of combined experience in IT sales and/or pre-sales/solution consulting.
• Proven experience managing IT tenders and digital transformation projects, particularly within Singapore.
• Skilled at translating technical concepts into clear business value for non-technical audiences.
• Detail-oriented with a professional attitude and strong commitment to client success.

We regret only shortlisted candidates will be contacted. All applications will be handled confidentially. By submitting your application, you agree to the collection, use, retention, and disclosure of your personal information to prospective employers.

Wecruit Pte Ltd

EA License No: 20C0270

EA Personnel: Nyon Hock Sen (Aden)

EA Personnel Reg No: R24124070