Happiest Minds Technologies
Website:
happiestminds.com
Job details:
Job Description
We are looking for a
Senior UI Associate (Frontend Developer + Backend developer) with strong expertise in
React.js to build and own complex, scalable user interfaces. The role involves translating business and design requirements into high-quality frontend solutions. The candidate will drive frontend best practices, optimize performance, and mentor junior developers. Close collaboration with UX, backend, and product teams is expected. The role will also involve working on backend integrations and APIs to support end-to-end feature delivery.
The role also involves working on backend integrations, APIs, and MCP-based implementations for secure tool and service orchestration.
Experience
5?9 years
Responsibilities
Lead development of complex UI modules using React.js
Design scalable frontend architecture and reusable component libraries
Manage complex application state using Redux
Optimize UI performance and rendering efficiency
Collaborate with product, UX, and backend teams on technical design
Review code and ensure high development standards
Guide and mentor associate-level developers
Ensure accessibility, responsiveness, and cross-device compatibility
Good knowledge of SQL server (DDL, DML, Complex queries) and Postgres
Develop and integrate RESTful APIs and backend services as required
Ensure secure coding practices and adherence to application security standards
Design and implement MCP integrations, including secure tool invocation, API orchestration, and prompt handling
Ensure proper handling of untrusted data, guardrails, and security controls within MCP-based applications
Skills & Qualifications
5?9 years of frontend development experience
Deep expertise in React.js, JavaScript, HTML, CSS
Strong hands-on experience with Redux
Experience with modular CSS approaches (SCSS, CSS Modules)
Familiarity with frontend build tools (Webpack/Vite, npm/yarn)
Experience integrating REST APIs
Ability to translate business requirements into technical solutions
Strong debugging, optimization, and architectural thinking
Good understanding of authentication/authorization mechanisms (OAuth, JWT)
Understanding of MCP concepts, API orchestration, and secure integration patterns
Click on Apply to know more.