Senior/ Lead Frontend Developer - React.js Framework at Trendlyne Technologies · Bengaluru (Bangalore) · 3 - 8 years · ₹10L - ₹25L / yr (ESOP available) · Raised funding · Posted 17 Jun 2026

Senior/ Lead Frontend Developer - React.js Framework
Who are we :
Trendlyne, an Series-A funded, profitable products startup in the financial markets space with cutting edge analytics products aimed at businesses in stock markets and mutual funds.
Our founders are IIT + IIM graduates, with strong tech, analytics and marketing experience. We have top finance and management experts on the Board of Directors.
What do we do :
We build powerful analytics products in the stock market space that are best in class. Organic growth in B2B and B2C products have already made the company profitable. We deliver 800 million+ APIs every month to B2B customers.
Trendlyne analytics deals with 100s of millions rows of data to generate insights, scores and visualisations which are an industry benchmark.
Technical Skills Required :
- Hands-on development experience on ReactJS, React Native
- Excellent front-end development skills - Javascript ES6, HTML5, CSS3, Bootstrap/Flex
- Excellent understanding of web browsers, mobile browsers and responsiveness
- Experience in UI Build using Webpack/ Gulp
- Proficient understanding of code versioning tools, such as Git, Bitbucket, Github
- Proficient understanding of the performance of web and mobile applications
- Knowledge of Django web framework or Python will be an added advantage
Responsibilities :
- Develop new user-facing features, web and mobile applications
- Use HTML, CSS, JS, to deliver front-end of projects on time
- Work with UI & UX designers and project managers to ensure timely delivery of code
- Work with Backend developers and ensure smooth integration with CMS or APIs
- Build reusable code and libraries for future use
- Ensure the technical feasibility of UI/UX designs
- Optimize website for maximum speed and scalability
- As part of the core team, you will be working on cutting edge technologies like Spark, Flume, online backtesting and data visualization, and machine learning.
- All Developers will be involved with the entire lifecycle of the product right from product conceptualization, design, implementation and mobile app and web delivery.
- Salary on par with the industry, with company equity.

About Trendlyne Technologies
About
Similar jobs (10)
Job Description:
https://drive.google.com/file/d/12Fcie5u0rhyHeE_xhsNTeGk3mlPId1Mb/view?usp=drive_link
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
- Staying up-to-date with the latest industry trends and technologies
- Troubleshooting and debugging issues to ensure smooth user experiences
- Participating in code reviews to maintain code quality and consistency
Required React developer requirements, qualifications & skills:
- Proficiency in React.js and its core principles
- Strong JavaScript, HTML5, and CSS3 skills
- Experience with popular React.js workflows (such as Redux)
- Familiarity with RESTful APIs and integration
- Knowledge of modern authorization mechanisms, such as JSON Web Tokens
- Understanding of front-end build tools and pipelines
- Excellent problem-solving and communication skills
- A strong attention to detail, and a passion for delivering high-quality code
- Adaptability to changing project requirements and priorities
- Experience with version control systems (e.g., Git)
- A degree in computer science, software engineering, or a related field
About VerbaFlo.AI
VerbaFlo.AI is a fast-growing AI SaaS startup revolutionizing how businesses leverage AI-powered solutions. As a part of our dynamic team, you’ll work alongside industry leaders and visionaries to drive innovation and execution across multiple functions.
About the role:
We are looking for a Senior Frontend Engineer to design and develop user-friendly, scalable, and high-performance web applications. This role requires deep expertise in frontend technologies, attention to detail, and the ability to collaborate with cross-functional teams.
Job Type: Onsite [Mon - Fri]
Timings: 12 pm to 8 pm IST
Responsibilities:
- Develop and maintain scalable, high-performance, and user-friendly web applications.
- Work closely with design, product, and backend teams to implement seamless user experiences.
- Ensure cross-browser compatibility, responsiveness, and accessibility of web applications.
- Write clean, maintainable, and efficient code while following best practices.
- Optimise application performance, scalability, and security.
- Conduct code reviews, write unit tests, and improve CI/CD workflows.
- Stay updated on the latest technologies, frameworks, and UI/UX trends.
Requirements:
- 5+ years of experience in frontend development, preferably in SaaS or AI-based applications.
- Expertise in JavaScript, Redux, TypeScript, React.js, Next.js, and modern frontend frameworks.
- Strong understanding of HTML, CSS, Tailwind, and component-based architecture.
- Experience with RESTful APIs, GraphQL, and state management (Redux, Zustand, or similar).
- Proficiency in performance optimisation, debugging, and accessibility best practices.
- Familiarity with Git, CI/CD pipelines, and frontend testing frameworks.
- Strong problem-solving skills and a passion for creating exceptional user experiences.
Why Join Us?
- Work directly with top leadership in a high-impact role.
- Be part of an innovative and fast-growing AI startup.
- Opportunity to take ownership of key projects and drive efficiency.
- A collaborative, ambitious, and fast-paced work environment.
- Perks & Benefits: gym membership benefit, workation policy and company-sponsored lunch.
About GeoIQ:
GeoIQ(a Lenskart subsidiary) is a location intelligence platform that provides comprehensive data and insights to help businesses make informed decisions about their retail operations and expansion. It offers a range of data points, including demographic information, commercial activity, and market performance indicators, to give users a detailed understanding of a specific location or market.
About the team:
Our agile team, consisting of 40+ members, is led by a founding team with extensive experience in data analytics, machine learning, and product development. Embrace the opportunity to collaborate with seasoned professionals in a dynamic and innovative work environment.
Responsibilities:
- Develop and maintain GeoIQ's products primarily using React, Redux, and NextJS.
- Ship simple, approachable, performant, and testable code.
- Enhance user experience by creating intuitive UIs that enable data visualization and discovery. Dive into legacy code to understand and improve current products.
- Facilitate and make informed technical decisions that drive the long-term vision for GeoIQ.
- Build workflow tools that allow users to explore GeoIQ's data repository, visualize spatial data, and create no-code AI models.
- Solve complex architecture problems in an extensible and maintainable way.
- Bring clarity to complex technical problems across the organization.
- Participate in the design process by listening to users, attending design critiques, and providing guidance and feedback informed by a deep understanding of technical constraints.
- Collaborate with team members to achieve clean and efficient code.
Requirements:
● Fluent and proficient in React with a minimum of 2 years of experience.
● Previous experience working with geo-spatial data.
Why Explore a Career at GeoIQ:
- Be part of a team that is revolutionizing decision-making for businesses across India.
- Work in a dynamic and innovative environment with ample opportunities for professional growth and learning.
- Contribute to the growth and success of a leading hyperlocal location AI startup in India.
If you are passionate about creating intuitive and efficient front-end solutions and meet the requirements listed above, we would love to hear from you. Apply now to join our team at GeoIQ!
Role Overview
We are looking for an experienced React + Java Developer with strong expertise in frontend development using React.js and working knowledge of Java backend development. The ideal candidate should have a strong focus on React (70%) and Java (30%) with experience in developing and maintaining scalable web applications.
Key Responsibilities
- Develop responsive and user-friendly web applications using React.js.
- Build reusable UI components and manage application state.
- Integrate REST APIs with frontend applications.
- Develop and maintain backend services using Java.
- Work with Java-based business logic and backend integrations.
- Debug, troubleshoot, and optimize application performance.
- Collaborate with cross-functional teams to deliver quality solutions.
- Participate in code reviews and follow coding standards.
Mandatory Technical Skills
React.js – 70%
- Strong hands-on experience in React.js.
- JavaScript (ES6+) and HTML5, CSS3.
- React Hooks and functional components.
- State management (Redux / Context API).
- REST API integration.
- Responsive web design and UI development.
Java – 30%
- Good hands-on knowledge of Core Java.
- OOP concepts and Java Collections.
- Spring Boot / Spring Framework.
- REST API development and integration.
- Basic knowledge of backend development.
About the Role:
We are looking for a Senior Frontend Engineer with strong experience in React and Next.js to join our growing engineering team in Bengaluru.
You will be responsible for designing, developing and maintaining modern, scalable web applications. You will work closely with backend engineers, product stakeholders and engineering leadership to build high-quality user experiences.
This is a hands-on engineering role offering significant ownership, technical challenges and the opportunity to influence architecture and engineering practices in a growing product-focused organisation.
Key Responsibilities:
- Design, develop and maintain scalable web applications using React and Next.js.
- Build responsive, reusable and high-performance user interfaces.
- Translate product requirements and designs into robust technical implementations.
- Develop reusable component libraries and frontend architecture.
- Integrate frontend applications with REST APIs and backend services.
- Implement effective state management and data-fetching strategies.
- Optimise application performance, accessibility and SEO.
- Ensure cross-browser compatibility and responsive design.
- Write clean, maintainable and testable code.
- Participate in code reviews and contribute to engineering best practices.
- Collaborate with cross-functional teams to deliver features from concept to production.
- Take ownership of technical decisions and proactively identify opportunities for improvement.
Required Skills & Experience:
- 4 - 6 years of professional frontend development experience.
- Strong hands-on experience with React.js.
- Experience building production applications using Next.js.
- Proficiency in JavaScript and TypeScript.
- Strong understanding of HTML5, CSS3 and responsive design.
- Experience integrating REST APIs and working with asynchronous data.
- Good understanding of frontend architecture and state management.
- Experience with Git and modern development workflows.
- Familiarity with frontend testing frameworks such as Jest, React Testing Library or Playwright.
- Understanding of web performance optimisation and browser fundamentals.
Good to Have:
- Working knowledge of Node.js and backend development fundamentals.
- Familiarity with PostgreSQL, relational database concepts and SQL.
- Experience building SaaS or enterprise-grade applications.
- Understanding of server-side rendering (SSR), static site generation (SSG) and SEO.
- Experience with Tailwind CSS or similar styling frameworks.
- Familiarity with cloud platforms such as AWS.
- Experience with real-time applications and WebSockets.
- Exposure to AI-powered applications and LLM integrations.
- Experience working in agile, product-focused engineering teams.
What We're Looking For:
- Strong problem-solving and analytical skills.
- Ability to work independently and take end-to-end ownership.
- Good understanding of software engineering fundamentals.
- Attention to code quality, performance and maintainability.
- Comfortable working in a fast-paced environment with evolving requirements.
- Strong communication and collaboration skills.
- A proactive mindset and willingness to contribute beyond assigned tasks.
What We Offer:
- Opportunity to work on modern, scalable technology products.
- Exposure to diverse engineering challenges and emerging technologies.
- A small, collaborative engineering team with high ownership.
- Direct collaboration with engineering leadership and product stakeholders.
- Opportunity to influence technical decisions and engineering practices.
The recruiter has not been active on this job recently. You may apply but please expect a delayed response.
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.
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.
- 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.
About the role
You'll join our frontend team and build features in Next.js under the guidance of a Senior Next.js Developer.
What you'll do
- Build UI components, pages and features in Next.js and React.
- Turn designs into responsive, pixel-accurate interfaces.
- Integrate APIs with guidance from senior teammates.
- Fix bugs, improve existing features and write clean, maintainable code.
- Take part in code reviews, standups and sprint planning.
What we're looking for
- 1-3 years of experience with React or Next.js (internships and strong personal projects count).
- Good knowledge of HTML, CSS, JavaScript/TypeScript and React.
- Strong experience with Tailwind CSS or similar styling approaches.
- Understanding of APIs and Git.
- Clear communication and willingness to learn and take feedback.
- Experience working with AI tools for development such as Claude and Cursor
Note: This is a dedicated frontend role. Backend knowledge isn't required, but you should be comfortable talking with backend teammates about what you need.
Nice to have
- A portfolio or GitHub with Next.js projects.
- An eye for UI detail and accessibility.















