Lead Frontend Engineer - React.js (4-6 years) at Trendlyne Technologies · Bengaluru (Bangalore) · 4 - 6 years · Raised funding · Posted 28 Jul 2026

What You’ll Do:
- Build and ship responsive, high-performance web applications using React.
- Translate UI/UX designs into clean, maintainable code.
- Integrate frontend with backend services via REST/GraphQL APIs.
- Optimize applications for speed, scalability, and cross-browser compatibility.
- Write reusable, modular components and maintain design consistency.
- Collaborate with product managers, designers, and engineers to deliver features end-to-end.
- Identify performance bottlenecks and improve frontend architecture.
- Participate in code reviews and contribute to best practices.
What We’re Looking For:
- 4–6 years of experience in frontend development.
- Strong hands-on experience with React.js.
- Solid understanding of JavaScript (ES6+), HTML5, and CSS3.
- Familiarity with state management (Redux / Zustand / Context API).
- Experience working with REST APIs and asynchronous programming.
- Understanding of responsive design and cross-browser compatibility.
- Experience with build tools (Webpack, Vite, etc.).
- Familiarity with Git-based workflows.
- Good problem-solving and communication skills.
Good to Have:
- Experience with testing frameworks (Jest, React Testing Library).
- Exposure to performance optimization techniques.
- Basic understanding of backend technologies (Node.js / Python).
What You’ll Work On:
- Building intuitive and scalable user interfaces for our core product.
- Improving performance and user experience across the platform.
- Contributing to frontend architecture and design systems.
- Solving real-world problems at scale.
Why Join Us
- Work on impactful products used by real customers.
- Opportunity to own features end-to-end.
- Collaborative and fast-paced environment.

About Trendlyne Technologies
About
Who are we?
Trendlyne is a funded, profitable products startup in the financial markets space. We have cutting-edge analytics products built for Indian and US customers, for stock markets and mutual funds.
Our founders are IIT + IIM graduates, with strong tech and marketing experience. We have top finance and management experts on the Board of Directors.
What do we do?
We build best in class analytics in the US and Indian stock market space. Organic growth in B2B and B2C products have already made the company profitable. We deliver 1 billion+ APIs every month to B2B customers, and have a B2C website and app.
Visit us at trendlyne.com, or look for the Trendlyne mobile app on the Google Play Store:
https://play.google.com/store/apps/details?id=com.trendlyne.markets
We are a great place to work
We have a culture where you are building something awesome, and your work makes a difference. Full-time employees get paid leave, parental leave, medical insurance, and employee stock options.
We invest in your learning and check in with you to help you meet your career goals. We keep regular hours and don't work on weekends.
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Job Description:
https://drive.google.com/file/d/12Fcie5u0rhyHeE_xhsNTeGk3mlPId1Mb/view?usp=drive_link
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
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
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.
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
The recruiter has not been active on this job recently. You may apply but please expect a delayed response.
Position: Sr. React Developer
Experience: 3 - 6 Years
Location: Hyderabad (Hybrid)
Job Summary
P99soft is looking for a skilled React Developer with 3 - 6 years of hands-on experience, including expertise in TypeScript, unit testing frameworks (Jest & React Testing Library), and micro-frontend architecture. The ideal candidate will have strong proficiency in building scalable, high-performance web applications using React and modern front-end technologies.
Key Responsibilities:
- Develop, test, and maintain responsive web applications using React.js and TypeScript
- Implement and maintain unit tests using Jest and React Testing Library
- Build scalable UI components with micro-frontend architecture
- Collaborate with UX/UI designers and backend developers to deliver high-quality solutions
- Write clean, modular, and maintainable code following best practices
- Integrate RESTful APIs and third-party services
- Troubleshoot and debug issues, and optimize performance across platforms
- Participate in code reviews, agile ceremonies, and sprint planning
- Ensure cross-browser compatibility and mobile responsiveness
- Maintain technical documentation and contribute to knowledge sharing
Required Skills:
- Strong proficiency in React.js, including hooks, lifecycle methods, and state management
- Expertise in TypeScript
- Solid understanding of JavaScript (ES6+), HTML5, CSS3, and Tailwind CSS
- Experience with Redux, React Router, and UI libraries like Material UI or Ant Design
- Practical experience with unit testing using Jest and React Testing Library
- Familiarity with micro-frontend architecture
- Experience integrating and consuming RESTful APIs
- Good understanding of Git and version control practices
- Hands-on experience with Webpack, Babel, and modern build tools
- Familiarity with Agile/Scrum methodologies
Benefits
- Competitive salary and performance-based bonuses.
- Comprehensive health insurance.
- Paid time off and flexible working hours.
- Professional development opportunities and support for continuing education. Udemy Learning Licenses to enhance skills and stay up-to-date with the latest technology.
P99soft is an equal-opportunity employer
P99soft is an equal-opportunity employer. At P99soft, we are committed to providing equal employment opportunities regardless of job history, disability, gender identity, religion, race, color, caste, marital/parental status, veteran status, or any other special status. We stand against the discrimination of employees and individuals and are proud to be an equitable workplace that welcomes individuals from all walks of life if they fit the designated roles and responsibilities.
Life@P99soft
At P99soft, we believe in creating a work environment that balances professional excellence with personal well-being. Our vibrant office culture is built on mutual respect, inclusivity, and a shared passion for innovation. We host regular team-building activities, workshops, and social events to foster a sense of community and collaboration among our employees. Join us and be part of a team that values your contributions and supports your growth
About Us
P99soft is a leading IT Services and IT Consulting company dedicated to making our customers' business operations seamless by providing them with digital services and applications using the latest technologies. We are committed to bringing excellence to all our creations. We need passion, empathy, and being customer-focused to achieve technical excellence. We believe in transparency through open communication and work with honesty and integrity while dealing with our customers and partners.
Our Vision: “To lead digital transformation for our customers, delighting them at every step, while empowering our employees and fostering success.”
Our Mission: “To attain our objectives within a framework of integrity, transparency, and respect for our clients, employees, partners, and the community, fostering mutual trust and sustainable growth.”
Journey towards digital transformations begins here. Our talented teams help you make informed decisions, enhance operation efficiencies, create state-of-the-art visual interfaces, and design dynamic workflows to bring a better customer experience. Our engineering teams take complete ownership of assigning the right talent and architecting solutions using the latest technologies.
What we need:
• Experience in both Web + Mobile development
• Strong understanding of APIs & system design
• Ability to build end-to-end features
· Maintain version control and documentation using Git / GitHub.
Roles and Responsibilities
- Design and develop responsive web applications using React.js / Next.js.
- Build and maintain scalable RESTful APIs using Node.js and Express.js.
- Implement user authentication and authorization using JWT / OAuth2.
- Manage and optimize database structures using MongoDB or MySQL.
- Integrate front-end and back-end components seamlessly for smooth user experience.
- Collaborate with UI/UX designers and product teams to deliver high-quality features.
- Participate in Agile / Scrum sprints, daily stand-ups, and code reviews.
- Optimize applications for speed, performance, and security.
- Maintain version control and documentation using Git / GitHub.
Troubleshoot and debug production issues efficiently.
Job Location- Bangalore,
Candidates from Tamil Nadu willing to relocate to Bangalore can also apply.
UniAbroad is a fast-growing platform helping students explore global education opportunities and connect with institutions worldwide. We aim to simplify the study abroad journey through technology-driven solutions.
Key Responsibilities
- Design, develop, and maintain web applications and platforms
- Write clean, scalable, and efficient code
- Collaborate with product, design, and hiring support teams
- Integrate APIs and third-party services
- Troubleshoot, debug, and upgrade existing systems
- Ensure performance, security, and responsiveness of applications
Required Skills
- Strong knowledge of JavaScript, Python, or Java
- Experience with React / Node.js / Django / Laravel
- Understanding of databases (MySQL, MongoDB)
- Familiarity with Git and version control
- Basic understanding of REST APIs
- Good problem-solving and analytical skills
1–3 years of experience in software development
Experience working in a startup environment
Knowledge of cloud platforms (AWS, Azure, or GCP)
Possibility of growth opportunity in dubai
* Design, develop, and maintain responsive websites and web applications.
* Build reusable frontend components using React.js.
* Develop scalable backend APIs and services using Node.js.
* Integrate third-party services and payment gateways such as Stripe.
* Build RESTful APIs and integrate with modern databases.
* Optimize applications for maximum speed, scalability, and SEO.
* Collaborate with designers to translate Figma/UI designs into pixel-perfect interfaces.
* Implement authentication, authorization, and security best practices.
* Debug production issues and improve application performance.
* Participate in code reviews and mentor junior developers.
* Work within Agile/Scrum development processes.
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