Full-Stack Engineer (24 Months Contract)

TECHKNOWLEDGEY PTE. LTD.; Singapore; On-site; SGD 120,000 - 190,000; Full time

Job summary

TECHKNOWLEDGEY PTE. LTD. is hiring Full Stack Engineers to modernise a Singapore public sector digital service.

The team will migrate a legacy stack to a modern cloud-native platform on AWS, building frontend to backend, infrastructure, security, and production support. Expect responsibilities from migrating legacy apps to cloud-native stacks, writing React/TypeScript frontends, and creating backend services with Golang/Kotlin.

Qualifications

• 3-5 years hands-on full stack development experience.
• Senior Consultant: 7+ years, with 2-3 years leading delivery or defining solution architecture.
• Experience migrating or modernising legacy systems is strongly preferred.
• Experience delivering Singapore Government/public sector projects is an advantage.

Responsibilities

• Develop and configure products, migrating legacy applications to a modern cloud-native, containerised stack.
• Build responsive, accessible web frontends using ReactJS, TypeScript, and Next.js.
• Develop backend services and APIs in Golang and/or Kotlin, including long-running business processes with a workflow engine (Temporal).
• Set up and maintain secure AWS infrastructure using Terraform.
• Implement security controls and authentication with Singpass, Corppass, OIDC, and SAML.
• Build and maintain CI/CD pipelines in GitLab, and deploy workloads to Kubernetes (EKS).
• Instrument applications for observability with Dynatrace or Datadog.
• Support production deployments, troubleshoot issues, and participate in incident resolution.
• Write clean, tested, well-documented code and take part in code reviews.
• Senior Consultant: Define architecture and lead multi-workstream delivery, mentor team.

Skills

ReactJS

TypeScript

Golang

Kotlin

Docker

Kubernetes

AWS

Terraform

OIDC

SAML

Temporal

Next.js

GitLab CI/CD

EKS

Dynatrace

Datadog

OPA

Tools

GitLab CI/CD

EKS

Dynatrace

Datadog

OPA

Job description

Role Overview

We are looking for Full Stack Engineers to modernise a Singapore public sector digital service. The team will migrate a legacy tech stack to a modern, cloud-native, containerised platform on AWS. Engineers will build and configure products end to end, from frontend to backend, infrastructure, security integration, and production support.

Key Responsibilities

• Develop and configure products, migrating legacy applications to a modern cloud-native, containerised tech stack.
• Build responsive, accessible web frontends using ReactJS, TypeScript, and Next.js.
• Develop backend services and APIs in Golang and/or Kotlin, including long-running business processes using a workflow engine (e.g. Temporal).
• Set up and maintain secure AWS infrastructure using Infrastructure as Code (e.g. Terraform).
• Implement security controls and monitoring, including authentication and identity integration with Singpass, Corppass, OIDC, and SAML.
• Build and maintain CI/CD pipelines in GitLab, and deploy workloads to Kubernetes (EKS). Instrument applications for observability using tools such as Dynatrace or Datadog.
• Support production deployments, troubleshoot issues, and take part in incident resolution.
• Write clean, tested, well-documented code and take part in code reviews.

Additional responsibilities for Senior Consultant

• Define the technical architecture and target state for the modernised platform.
• Lead delivery across multiple workstreams, coordinating with product owners, DevSecOps, and agency stakeholders.
• Provide strategic technical guidance, set engineering standards, and mentor team members. Plan legacy-to-modern migration approaches, including sequencing, risk management, and cutover.

Requirements

• Experience: Consultant: 3-5 years of hands‑on full stack development experience.
• Senior Consultant: 7+ years of experience, including at least 2-3 years leading technical delivery or defining solution architecture.
• Experience migrating or modernising legacy systems is strongly preferred.
• Experience delivering Singapore Government or public sector projects is an advantage.

Technical skills (must have)

• Frontend: ReactJS, TypeScript
• Backend: Golang and/or Kotlin
• DevOps: CI/CD, Docker, Kubernetes
• Cloud: AWS architecture and services
• Infrastructure as Code: Terraform (or equivalent)
• Observability: hands‑on experience with at least one observability tool

Technical skills (good to have)

• Experience with Next.js
• Experience in setting up AWS cloud infrastructure (e.g. S3, EKS / ECS, EC2, Lambda, RDS, Load Balancers, API Gateway)
• Experience with a workflow engine (e.g. Temporal)
• Experience with a rules engine (e.g. Gorules, Open Policy Agent)
• Familiarity with observability tools such as Dynatrace, Datadog
• Implemented authentication using OIDC, SAML
• Implemented authorisation using RBAC, ABAC
• Government identity and security tooling: Singpass, Corppass, ADFS, WOG AD, CAM (GovTech Central Accounts Management), Trend Micro FAM
• Infrastructure and container security practices
• OutSystems, Oracle Policy Automation (OPA) / Oracle Intelligent Advisor (OIA), Sitefinity, Oracle

Soft skills

• Strong problem‑solving and debugging skills in production environments.
• Clear communication with technical and non-technical stakeholders.
• Senior Consultant: proven leadership, stakeholder management, and ability to drive decisions.