Senior Full Stack Developer - GS26025

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 realize 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.

This is a 12-months fixed term contract role.

We are seeking an experienced Senior Consultant - Full-Stack Developer to lead the technical development and delivery of our mobile web application/progressive web app (PWA) project. The successful candidate will provide expert technical consultation, drive development excellence, and ensure the delivery of scalable, high-performance, and secure web applications whilst working closely with stakeholders and development teams.

• Take full ownership of end-to-end application development, integrating frontend, backend, and cloud infrastructure
• Design, develop, and maintain advanced responsive, accessible, and performant web applications
• Implement frontend architectures using React Native, ensuring enterprise-level reusability, scalability, and security
• Develop and architect high-performance backend services and APIs, ensuring reliability, security, and observability
• Lead WhatsApp Business API integration implementation and provide technical consultation on messaging platform integrated with backend business workflow
• Continuously evaluate and adopt emerging technologies to improve application performance and developer productivity
• Lead technical discussions with stakeholders and translate business requirements into technical solutions
• Proactively identify and resolve complex bugs and performance issues
• Drive continuous improvement in software quality and development processes
• Lead the design and optimization of full-stack CI/CD deployment strategies, ensuring seamless and automated releases
• Establish automated infrastructure provisioning, monitoring, and cloud deployment strategies
• Ensure comprehensive full-stack security implementation, including authentication, authorization, API security, and frontend security best practices
• Lead IM8 security controls implementation and provide consultation on government security frameworks
• Establish security review processes and ensure adherence to government compliance requirements
• Drive security-first development practices and provide security consultation to development teams

Requirements

Education and Experience

• Degree or Diploma in Computer Science, Computer or Electronics Engineering, Information Technology, or related disciplines
• Minimum 7 years of experience in full-stack web development with proven track record of delivering complex projects
• Minimum 2-3 years of experience in senior technical or consulting roles
• Experience in client-facing consulting and stakeholder management
• Strong proficiency in both frontend and backend development with architectural knowledge
• Experience with Git and advanced branching workflows (GitFlow, trunk-based development)

Frontend Technologies

• Expert-level experience with React.js and modern frontend frameworks (Next.js, Vue.js, Angular, or Svelte)
• Extensive mobile app development expertise using React Native (critical requirement)
• Advanced knowledge of UI component libraries such as Material-UI, Tailwind CSS, or Bootstrap
• Experience with wireframing and prototyping tools (Figma) and design system implementation
• Deep understanding of progressive web app development and modern frontend architectures

Backend Technologies

• Advanced proficiency in Node.js, Express.js, or NestJS
• Strong experience with additional backend technologies such as Ruby on Rails, Java/Kotlin (Spring Boot), Python (Django, Flask, FastAPI), or Golang
• Expert-level experience in API design principles, including RESTful APIs, GraphQL, gRPC, and WebSockets for service communication
• Advanced knowledge of API rate limiting, caching strategies (Redis, Varnish), and performance optimizations
• Strong understanding of backend service scalability strategies (horizontal scaling, autoscaling, load balancing)

Observability & Monitoring

• Advanced experience implementing application performance monitoring (APM) tools (Datadog, New Relic, Sentry, Prometheus, OpenTelemetry)
• Expert knowledge of logging frameworks (ELK Stack, Loki, Fluentd) to track and debug issues across distributed systems

DevOps, Cloud, and Infrastructure

• Advanced experience with CI/CD pipelines (GitHub Actions, GitLab CI, ArgoCD, Jenkins)
• Expert-level hands-on experience with cloud platforms (AWS, Azure, Google Cloud, Cloudflare Workers)
• Extensive experience with Government Commercial Cloud (GCC) environment
• Advanced experience with containerization and orchestration (Docker, Kubernetes)
• Strong familiarity with Infrastructure as Code (IaC) tools (Terraform, CloudFormation, Pulumi)

Security Best Practices

• Expert knowledge of frontend security (CSP, CORS, XSS prevention)
• Advanced experience with backend security (OAuth, JWT, API rate limiting, encryption)
• Deep understanding of IM8 security policies and government compliance frameworks
• Strong familiarity with cloud security (IAM, Secrets Management, OWASP Top 10)
• Experience implementing comprehensive security strategies across full-stack applications

Software Quality & Testing

• Advanced experience with unit and integration testing (Jest, Cypress, Playwright, Pact)
• Expert-level backend testing using Postman, Supertest, contract testing
• Experience establishing testing strategies and mentoring teams on quality assurance practices

Professional Skills

• Proven project management and delivery experience in agile environments
• Experience in technical consulting and client relationship management
• Strong problem-solving and analytical skills

This role offers an excellent opportunity for a senior technical professional to provide expert consultation on modern full-stack development practices whilst leading the delivery of critical government technology initiatives.

Benefits

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.

Does it sound like something you are interested in exploring further? Please be in touch with our team for an initial chat at [email protected]

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 (https://www.activate.sg/privacy-policy) 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.