FullStack Developer (ReactJS/NodeJS)

JonDavidson Pte Ltd; Singapore; On-site; SGD 90,000 - 150,000; Full time

Job summary

JonDavidson Pte Ltd is seeking a senior frontend/backend engineer in Singapore to develop enterprise web applications using React.js, Next.js and TypeScript. You will design modular components, optimize rendering, and implement robust REST APIs with security and observability in mind.

The role requires hands-on testing with Jest and React Testing Library, plus strong PostgreSQL and Redux Toolkit experience.

Qualifications

• 5 years of progressive software engineering delivering complex web apps in enterprise environments.
• Proficient in React.js, Next.js and TypeScript; build modular reusable components and optimize rendering.
• Hands-on Node.js and REST APIs; design request flows, error handling and security/observability practices.
• Expertise with Jest and React Testing Library; design test suites to prevent regressions.
• Knowledge of PostgreSQL administration, query optimization, indexes, schema design and data integrity.
• Proficient with Redux Toolkit and Bootstrap 5 for scalable state and responsive interfaces.
• Familiar with Webpack configuration and performance tuning.

Skills

React.js

Next.js

TypeScript

Node.js

REST API design

Jest

React Testing Library

PostgreSQL

Redux Toolkit

Bootstrap 5

Webpack

Performance tuning

Security & observability

Tools

Webpack

Bootstrap 5

Job description

• Possess 5 years of progressive software engineering experience delivering complex web applications with significant exposure to enterprise grade environments
• Demonstrate strong proficiency in React Js Next Js and TypeScript with a track record of building modular reusable components and optimizing rendering performance for modern browsers
• Show hands on experience with Node JS and REST API consuming including design of request flows error handling patterns and integration of security and observability practices
• Exhibit practical expertise in JEST unit testing and React Testing Library by designing meaningful test suites that validate critical behaviors and ensure regression prevention in evolving systems
• Bring solid knowledge of PostgreSQL administration and query optimization including index strategies schema design and data integrity enforcement suitable for high volume applications
• Use Redux Toolkit and Bootstrap 5 effectively to create scalable state management solutions and visually consistent responsive interfaces that align with organizational design guidelines
• Demonstrate strong familiarity with WebPack configuration and performance tuning as well as disciplined