Senior Full Stack Developer - GS26025

Activate Interactive Pte Ltd; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

Activate Interactive Pte Ltd in Singapore is seeking an experienced Senior Consultant - Full-Stack Developer to lead the technical development and delivery of mobile web application and progressive web app projects. You will own end-to-end delivery across frontend, backend, and cloud infrastructure, collaborating with stakeholders to drive performance and security.

You will work with React Native, React.js, Node.js, and modern frameworks, implementing scalable architectures, CI/CD, and security

Qualifications

• 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 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)

Responsibilities

• 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

Skills

Full-stack development

Frontend architecture

Backend architecture

React.js

React Native

API design

CI/CD

Security best practices

Cloud deployment

Education

Bachelor's or Diploma in CS/Engineering/IT

Tools

Git

GitFlow

Next.js

Vue.js / Angular / Svelte

Material-UI / Tailwind / Bootstrap

Figma

Node.js / Express / NestJS

Ruby on Rails / Spring Boot / Django / Flask / FastAPI / Golang

Datadog / New Relic / Sentry / Prometheus / OpenTelemetry

ELK / Loki / Fluentd

Docker / Kubernetes

Job description

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

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

• DevOps, Cloud, and Infrastructure