Front End Developer

U3 INFOTECH PTE. LTD.; Singapore; On-site; SGD 60,000 - 80,000; Full time

Job summary

A leading tech company in Singapore is looking for a Frontend Developer with strong React.js experience and a solid understanding of Core Java. You'll develop responsive user interfaces, collaborate closely with Java backend teams to integrate APIs, and ensure optimal performance. If you have a passion for building high-quality applications and are proficient in JavaScript, HTML5, and CSS3, we want to hear from you. Join us to be part of a dynamic team in an innovative environment.

Qualifications

• Strong experience in React.js.
• Proficient in JavaScript (ES6+), HTML5, CSS3.
• Good understanding of Core Java concepts.
• Experience consuming RESTful APIs built using Java.
• Familiarity with JSON and HTTP protocols.
• Understanding of frontend performance optimization.

Responsibilities

• Develop and maintain frontend applications using React.js.
• Build responsive, high-performance UI components.
• Integrate frontend applications with Java-based backend services.
• Collaborate with Java backend developers.
• Optimize applications for performance and usability.
• Participate in Agile/Scrum ceremonies.

Skills

React.js

JavaScript (ES6+)

HTML5

CSS3

RESTful APIs

Problem-solving skills

Tools

Git

Jest

Job description

We are looking for a Frontend Developer with strong experience in React.js and a good understanding of Core Java. The ideal candidate will work on building modern, responsive user interfaces using React while collaborating closely with Java backend teams to integrate APIs and business logic.

Key Responsibilities

• Develop and maintain frontend applications using React.js

• Build responsive, high‑performance UI components

• Integrate frontend applications with Java‑based backend services (REST APIs)

• Collaborate with Java backend developers to understand business logic and data flow

• Translate UI/UX designs into clean, reusable React components

• Optimize applications for performance, scalability, and usability

• Perform code reviews and follow frontend best practices

• Troubleshoot and debug frontend and integration issues

• Participate in Agile/Scrum ceremonies

Required Skills & Qualifications

• Strong experience in React.js

• Proficient in JavaScript (ES6+), HTML5, CSS3

• Good understanding of Core Java concepts
  (OOP, Collections, Exception Handling, Multithreading – for backend interaction understanding)

• Experience consuming RESTful APIs built using Java (Spring/Spring Boot)

• Familiarity with JSON, HTTP protocols

• Experience with version control systems (Git / Bitbucket / GitHub)

• Understanding of frontend performance optimization

• Good communication and problem‑solving skills

Good to Have (Nice to Have)

• Experience with TypeScript

• Exposure to Spring Boot / Microservices architecture

• Knowledge of state management (Redux, Context API)

• Familiarity with UI frameworks (Material UI, Ant Design, Bootstrap, Tailwind)

• Experience with testing frameworks (Jest, React Testing Library)

• Exposure to CI/CD pipelines