Senior UI Developer

Job Description

Roles & Responsibilities :
Role Summary

We are looking for a Senior UI Developer with strong hands-on experience in building modern web applications usingReact JS, TypeScript, and related libraries. The role involves end-to-end feature development, integration with REST APIs, contributing to UI performance, security, and code quality, and working closely with backend, QA, and product teams.

Key Responsibilities

Feature Development & Implementation

• Develop high-quality UI components and modules usingReact, TypeScript, React Router, Axios, i18n.

• Implement complex workflows, configuration screens, dashboards, and designer components.

• Work on modeling/diagramming features usingJointJSor similar libraries (GoJS, mxGraph, etc.).

• Integrate UI with REST APIs followingOpenAPIspecifications.

Quality, Testing & Documentation

• Write clean, maintainable, reusable code with proper documentation.

• Perform unit and integration tests using Jest, React Testing Library, Cypress/Playwright.

• Participate in code reviews and ensure adherence to engineering standards.

• Support test automation initiatives and API contract validations.

Performance & Security Awareness

• Implement best practices for:

  • UI performance optimization (lazy loading, bundle reduction)

  • Secure coding (handling XSS, CSRF, input validation, secure API usage)

• Collaborate with architect and backend team to ensure NFR compliance.

Backend Collaboration

• Work with backend engineering to clarify API requirements and behavior.

• Basic understanding of:

  • Java, REST foundations

  • Spring Securityusage from frontend perspective

  • Authentication/authorization flows (JWT, OAuth)

Team Collaboration & Delivery

• Participate in sprint planning, estimation, and Agile ceremonies.

• Support junior developers with guidance and peer coaching.

• Troubleshoot production-like issues and provide quick resolutions.

• Contribute to continuous improvement of UI development processes.

Required Skills & Experience

Core Frontend Expertise

• Strong hands-on experience (6-10 years) in:

  • React JS + TypeScript

  • React Router, Axios, i18n

  • Modern build tools (Webpack, Vite, Node.js)

• Experience building scalable SPAs with modular structures.

• Exposure toJointJSor other diagramming libraries is a strong plus.

Backend & API Knowledge

• Good understanding of REST API consumption and OpenAPI/Swagger.

• Exposure to Java/Spring basics and ability to collaborate on API design.

• Knowledge of modern authentication methods (JWT, token security).

Testing Skills

• Experience with UI testing frameworks:

  • Jest, React Testing Library

  • Cypress / Playwright (preferred)

• Familiarity with automation pipelines and CI/CD workflows.

NFR Awareness

• Understanding of UI performance optimization techniques.

• Awareness of frontend security practices (OWASP Top 10).

Soft Skills

• Strong analytical and debugging skills.

• Ability to communicate issues, progress, and risks clearly.

• Collaborative mindset with willingness to learn platform-level complexities.

• Ownership-driven attitude with attention to detail.

Qualifications

Educational qualification:

Experience :

Mandatory/requires Skills :

Preferred Skills :

Additional Information

Experience - 6 to 8 years