Senior Full-Stack Engineer for AI Platforms

JOBSTER PRIVATE LTD.; Singapore; On-site; SGD 100,000 - 180,000; Full time

Job summary

JOBSTER PRIVATE LTD. seeks a Full Stack Engineer to design, develop, deploy, and maintain scalable AI-enabled web applications, integrating frontend, backend, cloud, and AI services.

You will own end-to-end delivery, advocate secure coding, and drive automated testing and CI/CD improvements across the stack. You will work in an agile environment, leveraging React.js/Next.js, Node.js or Python, and AWS, with emphasis on production-grade APIs, security, observability, and performance.

Qualifications

• Degree or Diploma in Computer Science, Computer Engineering, Information Technology, or related disciplines.
• Experience with Git and modern branching workflows.
• Strong proficiency in both frontend and backend development.
• Experience delivering production-ready web applications and digital products across the full lifecycle, including development, testing, deployment, and production support.
• JavaScript and TypeScript.
• Frontend frameworks such as React.js and/or Next.js.
• Experience building responsive and user-centric web applications.
• Familiarity with UI component libraries such as Material-UI or Tailwind CSS.
• Node.js (Express.js, NestJS) and/or Python (FastAPI, Flask, Django).
• Strong experience designing and developing RESTful APIs.
• Familiarity with GraphQL and WebSockets.
• Caching (e.g. Redis), API rate limiting, and scalability patterns (horizontal scaling, load balancing).
• Experience integrating with enterprise systems and third-party platforms.
• Hands-on experience building LLM-powered features in production, including retrieval-augmented generation (RAG), tool or function calling, and agent workflows.
• Experience implementing guardrails and evaluating LLM output quality.
• Proficient in using AI coding assistants with sound engineering discipline.
• Experience with GitLab CI/CD pipelines and modern DevOps practices.
• Hands-on experience with AWS cloud services and architectures.
• Experience with containerisation technologies such as Docker.
• Familiarity with application monitoring and observability tools.
• Awareness of LLM-specific risks such as prompt injection and sensitive data leakage (e.g. OWASP Top 10 for LLM Applications).
• Experience implementing authentication and authorization mechanisms (OAuth, JWT).
• Knowledge of API security and secure coding practices.
• Familiarity with cloud security concepts and OWASP Top 10.
• Experience with unit and integration testing.
• Experience with automated testing frameworks.
• Experience troubleshooting and resolving production issues.
• Experience delivering projects within the Singapore Government or Public Service sector.
• Familiarity with government security, governance, and compliance requirements.
• Experience with Microsoft Copilot, Azure OpenAI, or other enterprise AI platforms.
• Experience developing AI agents, copilots, chatbots, or workflow automation solutions.
• Familiarity with Kubernetes and container orchestration platforms.

Responsibilities

• Design, develop, and maintain responsive, accessible, and performant web applications.
• Implement modern frontend architectures, ensuring reusability, scalability, and security.
• Develop backend services and APIs, ensuring reliability, security, and observability.
• Ensure adequate automated test coverage and proactively fix bugs and defects.
• Optimize CI/CD deployment strategies, ensuring seamless and automated releases.
• Automate infrastructure provisioning, monitoring, and cloud deployments using DevOps best practices.
• Ensure application security, including authentication, authorization, API security, and frontend security best practices.
• Own the delivery, enhancement, and scaling of AI-enabled products in production.
• Continuously evaluate and adopt emerging technologies to improve application performance and developer productivity.

Skills

Full Stack Development

Frontend & Backend

DevOps practices

AI/ML integration

Security best practices

Testing & QA

Education

Degree or Diploma in CS/CE/IT

Tools

Git

GitLab CI/CD

AWS

Docker

React.js

Next.js

Node.js

Python

FastAPI

NestJS

Job description

JOBSTER PRIVATE LTD. seeks a Full Stack Engineer to design, develop, deploy, and maintain scalable AI-enabled web applications, integrating frontend, backend, cloud, and AI services.

You will own end-to-end delivery, advocate secure coding, and drive automated testing and CI/CD improvements across the stack. You will work in an agile environment, leveraging React.js/Next.js, Node.js or Python, and AWS, with emphasis on production-grade APIs, security, observability, and performance.