Senior Full-Stack AI Engineer — React/Next.js & LLMs

RAPSYS TECHNOLOGIES PTE. LTD.; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

RAPSYS Technologies PTE. LTD. in Singapore seeks a senior full-stack engineer to design, develop, deploy, and maintain AI-enabled web apps.

You will build end-to-end solutions across frontend, backend, database, AI integration, testing, and deployment, using React, Next.js, TypeScript, Node.js and PostgreSQL. The team emphasizes security, CI/CD, and scalable architectures with AI tooling.

Qualifications

• 5+ years of hands-on full-stack development experience.
• Strong experience with React.js, Next.js, Node.js, JavaScript, and TypeScript.
• Strong proficiency in PostgreSQL and SQL.
• Experience developing RESTful APIs and secure integrations.
• Experience with Git, CI/CD, and AWS (GCC).
• Hands-on experience with AI coding tools/agents and integrating LLM/Generative AI services.

Responsibilities

• Design, develop, deploy, and maintain secure and scalable AI-enabled web applications.
• Develop end-to-end solutions across frontend, backend, database, AI integration, testing, and deployment.
• Build applications using React, Next.js, TypeScript, Node.js, and PostgreSQL.
• Develop secure APIs, backend services, database schemas, and migrations.
• Integrate applications with LLMs and Generative AI APIs.
• Use AI coding assistants/agents for development, testing, debugging, and documentation while reviewing generated code.
• Implement automated testing and CI/CD pipelines.
• Apply security best practices for applications, APIs, data, and AI integrations.

Tools

React.js

Next.js

Node.js

JavaScript

TypeScript

PostgreSQL

SQL

RESTful APIs

Git

CI/CD

AWS (GCC)

AI tools/agents

LLM/Generative AI services

Job description

RAPSYS Technologies PTE. LTD. in Singapore seeks a senior full-stack engineer to design, develop, deploy, and maintain AI-enabled web apps.

You will build end-to-end solutions across frontend, backend, database, AI integration, testing, and deployment, using React, Next.js, TypeScript, Node.js and PostgreSQL. The team emphasizes security, CI/CD, and scalable architectures with AI tooling.