Senior Full-Stack Engineer - Cloud-Native Modernization Lead

ACTIVATE INTERACTIVE PTE LTD; Singapore; On-site; SGD 120,000 - 180,000; Full time

Benefits offered by this job

Market-competitive salary

Flexible benefits

Wellness & learning

Job summary

ACTIVATE INTERACTIVE PTE LTD is seeking Senior Full Stack Engineers to modernise a Singapore public sector digital service. You will migrate legacy systems to a cloud-native, containerised platform on AWS, building frontends with ReactJS/TypeScript and backends in Golang/Kotlin.

You will set up secure AWS infrastructure with Terraform, integrate authentication (Singpass/Corppass) and RBAC/ABAC, and lead multi-workstream delivery while mentoring the team.

Qualifications

• Experience migrating or modernising legacy systems.
• Experience delivering government/public sector projects is a plus.
• Frontend: ReactJS, TypeScript.
• Backend: Golang and/or Kotlin.
• DevOps: CI/CD, Docker, Kubernetes.
• Cloud: AWS architecture and services.
• Infrastructure as Code: Terraform.
• Observability: tool experience (e.g., Dynatrace, Datadog).
• Knowledge of Singpass, Corppass, OIDC, or SAML is advantageous.

Responsibilities

• Migrate legacy applications to a modern, cloud-native stack.
• Build responsive web frontends using ReactJS and Next.js.
• Develop backend services in Golang and/or Kotlin and implement workflows with Temporal.
• Configure secure AWS infrastructure with Terraform and manage CI/CD pipelines in GitLab.
• Integrate security controls and authentication (OIDC, SAML, Singpass).
• Lead delivery across multiple workstreams and mentor junior engineers.
• Define architecture and target state for the modernised platform.

Skills

ReactJS

TypeScript

Golang

Kotlin

AWS

Docker

Kubernetes

CI/CD

Security

Next.js

RBAC/ABAC

Observability

Temporal

Tools

GitLab

Terraform

Dynatrace/Datadog

S3/EKS/ECS/EC2/Lambda/RDS

Job description

ACTIVATE INTERACTIVE PTE LTD is seeking Senior Full Stack Engineers to modernise a Singapore public sector digital service. You will migrate legacy systems to a cloud-native, containerised platform on AWS, building frontends with ReactJS/TypeScript and backends in Golang/Kotlin.

You will set up secure AWS infrastructure with Terraform, integrate authentication (Singpass/Corppass) and RBAC/ABAC, and lead multi-workstream delivery while mentoring the team.