Senior Full Stack Engineer

neutron pte. ltd.; Singapore; On-site; SGD 120,000 - 160,000; Full time

Job summary

Neutron Pte. Ltd. in Singapore is seeking a Senior Full Stack Engineer to lead design and development of scalable, high-performance web applications.

You will shape architecture, mentor team members, and deliver end-to-end solutions with product, design, and DevOps. The role emphasizes React and TypeScript expertise, API design (REST/GraphQL), database optimization (PostgreSQL/MySQL), and cloud deployment on AWS/Azure, with a focus on reliability, security, and adopting AI-assisted coding tools

Qualifications

• 5+ years of full-stack development experience.
• Strong React and TypeScript expertise.
• Backend frameworks: Node.js, Express, NestJS.
• Relational databases and schema design.
• Cloud platforms experience (AWS/Azure).
• CI/CD and Docker experience.
• Experience with AI-assisted coding tools.
• Strong problem-solving and ownership.

Responsibilities

• Lead end-to-end feature development across frontend and backend.
• Architect scalable applications using modern frameworks.
• Develop responsive UIs with React and TypeScript.
• Design and implement RESTful and GraphQL APIs.
• Own database design and performance tuning.
• Deploy, monitor, and maintain production systems on cloud.
• Champion AI-assisted coding tools to boost productivity.
• Collaborate with product, design, and DevOps.
• Mentor engineers and uphold best practices.
• Drive architectural decisions for scalability and security.

Skills

React

TypeScript

System design

Ownership

Cloud platforms

Tools

Node.js

Express

NestJS

Docker

CI/CD pipelines

AWS

Azure

Job description

About the Role

We are seeking an experienced Senior Full Stack Engineer to lead the design and development of scalable, high-performance web applications.

You will play a key role in shaping architecture, mentoring team members, and delivering end-to-end solutions in close collaboration with product, design, and DevOps teams.

Key Responsibilities

• Lead the development of end-to-end features across frontend and backend systems
• Architect and build scalable, maintainable applications using modern frameworks
• Develop responsive, high-quality user interfaces with React and TypeScript
• Design and implement robust RESTful and/or GraphQL APIs
• Own database design, optimization, and performance tuning (PostgreSQL, MySQL)
• Deploy, monitor, and maintain production systems on AWS and/or Azure
• Champion the use of AI-assisted / agentic coding tools (e.g., Codex, Claude Code, Copilot) to improve team productivity
• Collaborate cross-functionally with product, design, and DevOps to deliver impactful features
• Mentor junior engineers and contribute to technical leadership and best practices
• Drive architectural decisions and ensure system scalability, reliability, and security

Requirements

• 5+ years (typically 6-8+ preferred) of full stack development experience
• Strong expertise in React and TypeScript
• Deep experience with backend frameworks such as Node.js, Express, NestJS, or similar
• Strong understanding of system design, architecture, and scalability patterns
• Solid experience with relational databases and schema design
• Hands-on experience with cloud platforms (AWS and/or Azure)
• Experience building and maintaining CI/CD pipelines and using Docker or similar tools
• Proven track record of using AI-assisted / agentic coding tools in real-world development workflows
• Strong problem-solving skills and ability to operate with high ownership

Nice to Have

• Familiarity with Agile development methodologies
• Experience with Government Commercial Cloud (GCC) environments within Government Agencies