Lead ReactJS Developer

Valiant Technologies LLC; Dallas (TX); On-site; USD 110,000 - 160,000; Full time

Job summary

VALIANT TECHNOLOGIES LLC is seeking a senior React.js frontend architect to lead large-scale applications in Dallas. You will design scalable front-end architectures, routing, and state management, while collaborating with backend, design, QA and product teams.

Responsibilities include building reusable components, optimizing performance, implementing CI/CD pipelines, ensuring security and accessibility, and mentoring junior developers to maintain code quality.

Qualifications

• Strong architecture experience for large React.js applications.
• Expertise with React.js, TypeScript, hooks, and modern libraries.
• Hands-on experience with Redux Toolkit, RTK Query, React Query.
• Experience with Axios, interceptors, error handling, and optimized API calls.
• Routing with React Router, including nested/guarded routes and lazy loading.
• Collaborative development with backend, design, QA, and product teams.
• Unit testing with Jest or RTL and high test coverage.
• Performance optimization and code splitting for fast UIs.
• Security-conscious frontend development and data handling.
• Documentation and maintainable code through reviews.

Responsibilities

• Lead and architect front-end solutions for large-scale React applications.
• Collaborate with UI/UX to implement responsive interfaces.
• Implement automated build, deployment, and CI/CD pipelines.
• Develop reusable components with clean, maintainable code.
• Mentor peers and conduct code reviews to improve quality.
• Ensure performance and accessibility across devices and users.
• Integrate backend services via Axios with robust error handling.
• Participate in testing and debugging to ensure reliability.

Skills

Architecture

React.js Development

React ecosystem

API integration

Route management

UI integration

Component development

Frontend optimization

Security

Collab development

Testing & debugging

Unit testing

Code maintenance

Documentation

Tech update

Communication & training

Job description

• Architecture: Strong experience in leading and architecting large-scale React.js applications. Skilled in designing scalable front-end architecture, routing structure, state management layers, and integrating automated build, deployment, and CI/CD pipelines.
• React.js Development: Build dynamic, high-performance web applications using React.js, TypeScript, and modern libraries. Implement interactive features, complex data flows, and scalable state-driven UIs.
• Expertise in React Ecosystem: Hands-on experience with Hooks, component lifecycle, advanced state management, and performance patterns. Expertise in Redux Toolkit, RTK Query, React Query, and application-wide state architecture.
• API Integration (Axios): Integrate backend services using Axios with interceptors, global error handling, retry logic, and optimized API communication patterns.
• Route Management: Architect and implement routing using React Router, including nested routes, guarded/private routes, role-based access, and lazy-loaded route structures.
• UI Integration: Collaborate with UI/UX teams to build visually appealing, responsive, and user-friendly interfaces that match design specifications.
• Component Development: Develop reusable, modular, and scalable React components using best practices, ensuring maintainability and consistency across applications.
• Front-end Optimization: Improve performance through memorization, virtualization, code splitting, minimizing re-renders, and optimizing bundle size for seamless user experience.
• Security: Write secure and efficient front-end code, implement client-side validations, handle sensitive data safely, and address vulnerabilities proactively.
• Collaborative Development: Work closely with backend engineers, designers, architects, QA, and product teams to ensure smooth integration of front-end and backend workflows.
• Testing and Debugging: Conduct thorough debugging and implement strong testing practices to ensure functional stability, responsiveness, and error-free user experiences.
• Unit Testing: Proficient in writing unit test cases using Jest or React Testing Library (RTL), ensuring high coverage, stability, and bug-free releases.
• Code Maintenance and Documentation: Follow clean code principles, maintain clear documentation, perform refactoring, and ensure code quality through reviews and continuous improvement.
• Stay Up-to-Date with Technology: Keep current with modern React features, frontend tooling, state management patterns, and performance best practices to stay ahead of industry standards.
• Communication & Training: Strong communication skills with the ability to mentor team members, document best practices, and provide technical guidance to development teams.

VALIANT TECHNOLOGIES LLC is an equal opportunity employer inclusive of female, minority, disability and veterans, (M/F/D/V). Hiring, promotion, transfer, compensation, benefits, discipline, termination and all other employment decisions are made without regard to race, color, religion, sex, sexual orientation, gender identity, age, disability, national origin, citizenship/immigration status, veteran status or any other protected status. VALIANT TECHNOLOGIES LLC will not make any posting or employment decision that does not comply with applicable laws relating to labor and employment, equal opportunity, employment eligibility requirements or related matters. Nor will VALIANT TECHNOLOGIES LLC require in a posting or otherwise U.S. citizenship or lawful permanent residency in the U.S. as a condition of employment except as necessary to comply with law, regulation, executive order, or federal, state, or local government contract