Sr. React.js Developer

Role Description

This is a full-time role for a React.js Developer who will be responsible for developing, maintaining, and optimizing responsive and scalable web applications. The successful candidate will work closely with UI/UX designers, backend developers, and product teams to convert designs and requirements into high-quality, production-ready applications. The role requires strong problem-solving skills, attention to detail, and the ability to take ownership of features from development through deployment.

Key Responsibilities

• Develop responsive and scalable web applications using React.js.
• Build reusable and maintainable frontend components.
• Convert UI/UX designs and Figma prototypes into functional web interfaces.
• Integrate frontend applications with REST APIs and backend services.
• Manage application state using Redux, Context API, Zustand, or similar technologies.
• Optimize applications for performance, responsiveness, and scalability.
• Debug and resolve frontend issues across development and production environments.
• Ensure cross-browser and cross-device compatibility.
• Collaborate with UI/UX designers, backend developers, QA, and product teams.
• Participate in code reviews and follow clean coding and development practices.
• Write and maintain appropriate tests for frontend applications.
• Stay updated with modern frontend technologies and best practices.
• Take ownership of features from development and testing through deployment and maintenance.

Requirements

• Strong proficiency in JavaScript (ES6+) and React.js.
• Good understanding of React Hooks, component architecture, props, state, and Context API.
• Strong knowledge of HTML5 and CSS3 and responsive web development.
• Experience integrating REST APIs and working with JSON.
• Experience with state management libraries such as Redux, Zustand, or similar.
• Experience with Git and GitHub/GitLab.
• Understanding of frontend performance optimization and browser debugging.
• 3+ years of hands-on experience in frontend development with React.js.
• Experience with TypeScript and Next.js is preferred.
• Familiarity with UI libraries such as Tailwind CSS, Material UI, or similar is a plus.
• Experience with frontend testing tools such as Jest, Vitest, or React Testing Library is a plus.
• Good problem-solving and analytical skills.
• Strong communication and collaboration skills.
• Ability to work independently, prioritize tasks, and meet deadlines.
• A proactive approach to learning and solving technical problems.

Candidates with strong practical experience, personal projects, GitHub contributions, or demonstrable frontend work may also be considered in place of extensive professional experience.

NEED TO HAVE :

1) Have some knowledge of front end like React.JS

2) HTML, CSS

3) Strong in JavaScript concepts

4) Good communication skills

5) Loves to code

GOOD TO HAVE :

1) Experience with type script will be a plus

2) Experience with Nest.JS framework will be a plus

3) Strong hold on ES6 principles.

4) Familiar with TDD ( Test Driven Development ) will be a plus.

5) Familiar with working in CI / CD will be a plus

6) Micro-Service architecture knowledge will be an added benefit.

You can contact me on this WhatsApp number: Nine three one six one two zero one three two

Job Title: Senior React.js Developer (Immediate Joiner)

Location: Bangalore

Experience: 5+ Years

About the Role

We are looking for a skilled React Developer with 5+ years of experience to join our team immediately. The ideal candidate should have strong expertise in React.js along with a basic understanding of Angular. You will be responsible for developing user interface components and implementing them following well-known React workflows.

Key Responsibilities

• Develop and maintain responsive web applications using React.js
• Build reusable components and front-end libraries for future use
• Translate UI/UX designs into high-quality code
• Optimize applications for maximum performance across devices and browsers
• Collaborate with backend developers and cross-functional teams
• Participate in code reviews and ensure best practices are followed
• Assist in debugging and resolving technical issues
• Work on minor enhancements or support tasks in Angular-based modules (if required)

Required Skills & Qualifications

• 5+ years of hands-on experience in React.js development
• Strong proficiency in JavaScript, HTML5, CSS3
• Experience with state management libraries (Redux / Context API)
• Familiarity with RESTful APIs and integration
• Basic knowledge or exposure to Angular
• Understanding of responsive design and cross-browser compatibility
• Good problem-solving and communication skills

Preferred Skills

• Experience with TypeScript
• Knowledge of modern front-end build pipelines and tools (Webpack, Babel, etc.)
• Familiarity with version control systems like Git

Joining Requirement

• Immediate joiners or candidates with short notice period (0–15 days) preferred

About NonStop io Technologies:

NonStop io Technologies is a value-driven company with a strong focus on process-oriented software engineering. We specialize in Product Development and have a decade's worth of experience in building web and mobile applications across various domains. NonStop io Technologies follows core principles that guide its operations and believes in staying invested in a product's vision for the long term. We are a small but proud

group of individuals who believe in the 'givers gain' philosophy and strive to provide value in order to seek value. We are committed to and specialize in building cutting-edge technology products and serving as trusted technology partners for startups and enterprises. We pride ourselves on fostering innovation, learning, and community engagement. Join us to work on impactful projects in a collaborative and vibrant environment

Brief Description:

NonStop io is seeking a proficient React.js developer to join our front-end development team. In this position, you’ll be mainly crafting and integrating UI components through React.js methodologies and workflows like Mobx and Redux.

Responsibilities:

● Developing and implementing UI components using React.js

● Collaborating with cross-functional teams to design and ship new features

● Building reusable components and front-end libraries for future use

● Translating designs and wireframes into high-quality code

● Optimizing components for maximum performance across various web browsers

● Troubleshooting and debugging issues to ensure smooth user experiences

● Participating in code reviews to maintain code quality and consistency

● Improvement and optimization of existing codebase

● Keeping up with industry trends

● Identifying issues with technologies and architecture and then implementing solutions

● Assist with ticket creation, refinement, and estimation

● Participate in sprint planning and ticket distribution for frontend team

Qualifications & Skills:

● Proficiency in React.js and its core principles

● Strong JavaScript, TypeScript, HTML5, and CSS3 skills

● Experience with popular React.js state management libraries and approaches (such as Mobx, Redux, and Context API)

● Familiarity with RESTful APIs and integration

● Knowledge of modern authorization mechanisms, such as JSON Web Tokens

● Understanding of front-end build tools and pipelines

● Familiarity with any one of backend technologies such as Node.js, Java, or Python

● Excellent problem-solving and communication skills

● A strong attention to detail, and a passion for delivering high-quality code

● Expertise in designing scalable and efficient front-end architecture

● Adaptability to changing project requirements and priorities

● Experience with version control systems, particularly Git

● Experience working in Scrum and familiarity with Atlassian (Jira, Confluence, Bitbucket)

● Experience with diverse applications and architectural patterns

● A degree in computer science, software engineering, or a related field

● Strong understanding of object-oriented programming principles and design patterns

● Familiarity with automated testing frameworks and methodologies

● Excellent problem-solving skills and attention to detail

● Strong communication skills and ability to work effectively in a collaborative team environment

● Ready to be a tech-agnostic engineer and comfortable to shift on any tech stack

● Comfortable working with AI (Claude code, Cursor etc)

If you're passionate about technology and want to work on impactful projects, we'd love to hear from you

Job Description:

https://drive.google.com/file/d/12Fcie5u0rhyHeE_xhsNTeGk3mlPId1Mb/view?usp=drive_link

We are looking for a Full Stack Developer to produce scalable software solutions. You'll be part of a cross-functional team that's responsible for the full software development life cycle(Java with react), from conception to deployment.

• Responsible for developing software in Java, object-oriented databases, and the dotCMS platform.
• Responsible for building REST web services, and designing interfaces between UI and REST service.
• Deep knowledge and hands-on experience with Java and UI stack.
• Proficient experience with web technologies, frameworks, and tools like HTML, CSS, JavaScript, React, NodeJS, XML, jQuery, Spring, etc.
• Should be well versed with State Management, Redux, Reducers, JavaScript, and CSS in ReactJS/UI.

• 5–8 years of experience in full-stack development.
• Strong hands-on experience with React.js and JavaScript/TypeScript.
• Develop reusable, responsive, and high-performance UI components.
• Experience with React Hooks, Redux, Context API, and frontend state management.
• Strong knowledge of Core Java, Java 8/11/17+, and object-oriented programming.
• Hands-on experience with Spring Boot, Spring MVC, and Spring Security.
• Design, develop, and integrate RESTful APIs and microservices.
• Work with databases such as PostgreSQL, MySQL, or Oracle.
• Write unit, integration, and frontend tests using tools such as JUnit, Jest, or React Testing Library.
• Collaborate with product managers, UI/UX designers, QA engineers, and development teams.
• Participate in design discussions, code reviews, sprint planning, and Agile ceremonies.
• Troubleshoot application issues and optimize system performance.
• Use Git, Maven/Gradle, and CI/CD pipelines for development and deployment.
• Exposure to Docker, Kubernetes, AWS, or other cloud platforms is an added advantage.
• Strong problem-solving, communication, and teamwork skills.

Role & Responsibilities:

Design and develop mobile applications using React Native.

Collaborate with cross-functional teams to define, design, and ship new features.

Ensure performance, quality, and responsiveness of applications.

Debug and fix issues, improve application performance, and maintain code quality.

Work onsite with the client team in Trichy.

Requirements:

Minimum 2 years of hands-on experience in React Native mobile app development.

Strong knowledge of JavaScript/TypeScript and mobile UI/UX principles.

Experience with REST APIs, third-party libraries, and integration.

Ability to work independently and in a team environment.

Immediate availability preferred.

Role Summary

The Senior Front-end Developer builds and maintains client-facing interfaces per UI/UX designs and product requirements, owns front-end architecture and code-review standards, and mentors the Junior Front-end Developer. This is a specialized front-end role, not a full-stack position.

Key Responsibilities

•   Own front-end architecture decisions, including framework, state management, and tooling choices.

•   Set and enforce code-review, testing, and performance/accessibility standards for the pod.

•   Lead implementation of complex, high-visibility features.

•   Troubleshoot and resolve complex front-end performance or technical issues.

•   Mentor the Junior Front-end Developer, including code review and skill development.

•   Partner closely with UI/UX to ensure design fidelity and flag implementation constraints early.

•   Evaluate and recommend front-end tooling or library upgrades.

Required Skills & Technical Competencies

•   Deep expertise in a modern front-end framework (React strongly preferred) and associated ecosystem.

•   Strong understanding of front-end performance optimization and accessibility standards.

•   Experience owning front-end architecture for a production application.

Targeted Qualifications

•   5–8 years of front-end development experience.

•   Deep expertise in a modern framework (React preferred) and front-end architecture patterns.

•   Experience owning performance and accessibility standards.

•   Bachelor's degree in Computer Science or related field.

Preferred / Nice-to-Have

•   Experience with data-dense or real-time dashboard interfaces (relevant to IoT products).

•   Experience mentoring junior developers formally.

Frontend Developers

• Contract To Hire (Initial Engagement: 6 months)

Experience: 5+ years

Mandatory Skills:

● React.js

● React Native

● JavaScript

● Experience in developing scalable and maintainable web and mobile applications

● Frontend architecture and reusable components

● State management

● REST API/backend service integration

● Application performance optimisation

● Authentication/authorisation and frontend security

● Git and pull-request-based development

● Clean, reusable and testable code

● Agile/product development experience

● Code reviews, debugging and production issue resolution

Good to have:

● TypeScript

● Next.js

● Jest / React Testing Library

● CI/CD

● Application monitoring

● Mobile deployment