Senior Full Stack Engineer

Roles and Responsibilities Responsibility

The Full Stack Engineer is 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.
. Manage and resolve day-to-day IT related issues pertaining to application, infrastructure or security, to facilitate smooth running of daily operations
. Troubleshoot and resolve complex technical issues in low-code applications

Knowledge and Skills

a) Educational Background
. Tertiary education in Computer/Computer Science or Electronics Engineering or Information Technology or equivalent
b) Experience and Skills Needed
. Relevant working experience as a developer or equivalent in at least 3 Agile/ full project development life cycle and a minimum of 5 years experience in relevant role.
. Strong proficiency in both frontend and backend development
. Strong problem-solving skills and able to prioritise and manage multiple tasks
. Ability to work both independently and as part of a team with professionals at all levels

Frontend Technologies:
. JavaScript and TypeScript.
. Frontend frameworks such as React.js, Next.js, Vue.js
. Experience with wireframing and prototyping tools (Figma).

Backend Technologies:
. Node.js
. RESTful APIs, GraphQL, gRPC, and WebSockets for service communication.
Backend Scalability & API Design:
. Strong experience in API design principles, including REST, GraphQL, gRPC, and WebSockets.
. Familiarity with backend service scalability strategies (horizontal scaling, autoscaling, load balancing).
DevOps, Cloud, and Infrastructure:
. Experience with CI/CD pipelines (GitHub Actions, GitLab CI, ArgoCD, Jenkins).
. Cloud solutioning and hand-on experience with AWS Cloud (ECS Fargate containers, API Gateway, RDS PostgreSQL, Networking). Government Commercial Cloud - GCC will be beneficial.
. Experience with containerization and orchestration (Docker, Kubernetes).
. Familiarity with Infrastructure as Code (IaC) tools (Terraform, CloudFormation)

Security Best Practices:
. Strong knowledge of frontend security (CSP, CORS, XSS prevention).
. Able to build Scripts and API Integrations with knowledge of JWT, JWKS, Cognito and Authorisers.
. Familiarity with cloud security (IAM, Secrets Management, OWASP Top 10).

Software Quality & Testing:
. Experience with unit and integration testing (Jest, Cypress, Playwright, Pact).
. Backend testing using Postman, Supertest, contract testing.

Bonus Experience (Added Advantage):
. Relevant experience in and knowledge of microservice architecture
. Experience in working will LLM, e.g. Open AI, Amazon Q, Gemini
. Familiarity with governance, adoption of digital services in enterprise IT environments.
. Work experience and strong troubleshooting skills in resolving application, infrastructure (including desktop, server, network) and security related issues in a (Singapore) government environment