
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
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.
Similar jobs
At Lemon Yellow, great design deserves great engineering.
We bring the design, you bring the tech magic, and together we create UI and UX experiences that make users smile.
We are looking for a Frontend Developer who can translate thoughtful design into smooth, scalable, and delightful digital experiences.
1. Core Responsibilities
Work closely with the design team to translate UI and UX requirements into high quality, functional interfaces.
Convert wireframes and mockups into fully interactive, iterative environments.
Build responsive, elegant, and accessible web interfaces using modern JavaScript practices.
Integrate frontend components with backend APIs and work collaboratively with backend engineers.
Ensure layouts are pixel perfect across devices, browsers, and screen sizes.
Write clean, reusable, and maintainable code while working with designers, strategists, and developers.
Contribute to shaping digital products, features, and enhancements.
2. Interaction and Motion
Use GSAP or similar tools to create smooth animations and micro-interactions.
Ensure motion enhances user experience without affecting performance.
Implement accessible interactions that feel natural and intuitive.
3. API and Integration Management
Integrate frontend systems with RESTful APIs and backend services.
Work with third party tools, plugins, and services as required.
Ensure smooth data flow, secure handling, and efficient UI rendering.
4. Code Quality and Optimization
Debug and optimize interfaces for speed, performance, and reliability.
Maintain best practices around component reuse and code organization.
Participate in code reviews and contribute to improving internal standards.
Ensure cross browser compatibility and responsive breakpoints.
5. Agile Collaboration
Participate in daily stand ups, sprint planning, retros, and reviews.
Contribute to task estimations and collaborate on technical problem solving.
Stay responsive to project shifts, timelines, and delivery cycles.
6. Continuous Learning and Innovation
Stay updated with the latest trends, tools, and practices in the frontend ecosystem.
Experiment with new frameworks, libraries, and methodologies.
Share learnings with the team and suggest creative, efficient solutions.
Requirements
- Bachelor’s degree in Engineering, Computer Science, or a related field.
- Minimum 1 year of hands-on frontend development experience.
- Strong proficiency in HTML, SASS CSS, and JavaScript ES6.
- Expertise in React.js.
- Familiarity with Bootstrap and Tailwind CSS.
- Experience with GSAP for animations.
- Knowledge of WordPress or WebFlow is a plus.
- Hands on experience with GIT and version control workflows.
- Ability to build responsive, user friendly layouts.
- Strong analytical and problem solving skills.
- Attention to detail and love for clean, maintainable code.
- Good collaboration and communication skills.
- Eagerness to learn, experiment, and grow.
What are we offering?
Experience
A chance to work on meaningful brands and digital products across industries. Every project brings new learning and opportunities to strengthen your development skills. You grow and you help the team grow.
Exposure
If you believe in your work, we believe in you. You get to work directly with clients, understand real world problems, and build solutions that create impact.
Empathy
A thoughtfully nurtured culture that values fun and fulfilment.
Your wellbeing, personal, professional, mental, and physical, becomes our priority.
From Fitness Thursdays to learning sessions, we make sure you laugh, learn, and feel supported.
Who are we?
Lemon Yellow LLP is a user centered UI and UX design agency based out of Thane, Maharashtra. With global experience, strong mentorship, and a passionate team, we aim to design digital happiness.
You should apply if you believe in building experiences that people enjoy using.
How do you reach us?
Well, after you send in your application, it takes us 2-3 weeks to review it. Sometimes, not often, we might delay just a bit beyond that. This happens when our mailbox is flooded with applications.
We promise we won’t ghost you, you’ll definitely hear from us. In the meantime, feel free to explore our official website.
Hi,
Please refer to the below Job description and revert with you updated resume –
About Client: Digital accelerator to Startups, SMEs, MSMEs, and large enterprises with a significant contribution across 22+ industries including BFSI, Healthcare, Ecommerce & Retail, Education & eLearning, Insurance, Tech Startups, Government & Semi-Government, and more. Backed with an impressive experience of 25+ years and a fast-growing family of 4000+ engineering professionals our capabilities span across IT Consulting, Strategy Planning & Execution, Business Process Re-engineering, IT Modernization, and Business Analysis Consulting, our solutions are devised meticulously to address the needs of specific industries.
We are a CMMI Level 5 organization global IT Solution provider and Outsourcing company headquartered in Mumbai and footprints with 10 delivery centres in India and 15 global offices. Our success portfolio boasts of 7500+ projects accomplished across 1500+ clients in 50+ countries with client retention rate as high as 85%
Location: Navi Mumbai, CBD Belapur
Domain: Banking (Payment Gateway Project)
NOTE: 1st and 3rd Saturdays working as per banking norms
Education: B.E. or Graduation in Computer Science or related field
job Summary:
We are seeking a talented and motivated React.js Developer to join our development team. The ideal candidate will be responsible for designing and developing user interface components using React.js concepts and workflows such as Redux, Flux, and Webpack. You will ensure that these components and the overall application are robust and easy to maintain.
You will coordinate with the rest of the team working on different layers of the infrastructure, including back-end services and APIs. Therefore, a commitment to collaborative problem-solving, sophisticated design, and quality products is essential.
Key Responsibilities:
Develop new user-facing features using React.js.
Build reusable components and front-end libraries for future use.
Optimize components for maximum performance across a vast array of web-capable devices and browsers.
Translate designs and wireframes into high-quality code.
Write clean, scalable, and maintainable JavaScript code.
Ensure the technical feasibility of UI/UX designs.
Collaborate with back-end developers and web designers to improve usability.
Debugging, troubleshooting, and enhancing application performance.
Stay updated with emerging trends and technologies in front-end development.
Skills and Qualifications:
Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model.
Thorough understanding of React.js and its core principles.
Experience with popular React.js workflows (such as Flux or Redux).
Familiarity with RESTful APIs and integrating them into front-end code.
Knowledge of modern authorization mechanisms, such as JSON Web Token (JWT).
Familiarity with modern front-end build pipelines and tools (e.g., Babel, Webpack, NPM, etc.).
Experience with code versioning tools such as Git.
Familiarity with browser developer tools and debugging.
Understanding of cross-browser compatibility issues and ways to work around them.
Familiarity with unit testing and testing frameworks (e.g., Jest, Enzyme, Cypress).
Ability to understand business requirements and translate them into technical requirements.
Preferred Qualifications:
Bachelor's degree in Computer Science, Software Engineering, or a related field.
Experience with TypeScript and GraphQL.
Experience with other JavaScript frameworks like Next.js or Gatsby.js.
Familiarity with CI/CD pipelines and containerized applications (e.g., Docker).
Good understanding of SEO principles and ensuring that application adheres to them.
Soft Skills:
Strong problem-solving skills and attention to detail.
Excellent communication and teamwork abilities.
Ability to work in a fast-paced environment and meet deadlines.
Open to learning new technologies and frameworks.
Responsibilities:
Develop and maintain user-facing features for web applications
Collaborate with the design team to implement responsive and visually appealing interfaces
Ensure the technical feasibility of UI/UX designs
Optimize applications for maximum speed and scalability
Stay updated on emerging frontend technologies and industry best practices
Troubleshoot and resolve bugs and performance issues
Work closely with backend developers to integrate frontend components with server-side logic
Participate in code reviews and contribute to a collaborative development environment
Skills:
Proficient in HTML, CSS, and JavaScript
Experience with modern JavaScript frameworks (e.g., React, Angular, or Vue)
Strong understanding of responsive design and cross-browser compatibility
Familiarity with version control systems (e.g., Git)
Knowledge of build tools and package managers (e.g., Webpack, npm)
Ability to translate design mockups and wireframes into code
Excellent problem-solving and debugging skills
Strong communication and collaboration skills
Attention to detail and a passion for delivering high-quality user experiences
Qualifications:
Bachelor's degree in Computer Science, Web Development, or a related field (or equivalent work experience)
Proven experience as a Frontend Developer or similar role
Portfolio showcasing previous frontend projects and development work is a plus
PayGlocal is building the next-gen payments stack for a globally connected world. That is how we derive our name and motto – Stay Local, Pay Global. Our vision is to build a state-of-the-art payments stack that helps businesses worldwide collect payments from customers around the world in the best way possible.
We are a well-funded early-stage startup with a passion to grow and a commitment to solving payments-related challenges in an innovative way. And we are hiring talent to join our early team to grow together. Work with smart, passionate, and fun-loving folks.
Position Summary
Passionate and creative designer who will design, develop, manage, build, and maintain internal websites and applications using Webflow.
What will you work on?
- Provide development and design on internal web applications through Webflow.
- Work closely as a project team to iterate on UI/UX designs.
- Participate in all aspects of the software development lifecycle.
- Develop custom code in Webflow to add functionality or integrate third-party tools and APIs.
- Work collaboratively in an Agile environment.
- Ensure the technical feasibility of UI/UX designs.
- Debug and troubleshoot technical issues.
- Provide hands-on support with web development and maintenance as needed.
- Build reusable code and libraries that drive complex web applications.
- Optimize applications for maximum speed, scalability, SEO and responsiveness.
- Conduct testing of completed applications, websites and software to assess user experience.
- Write custom HTML, CSS and JavaScript for existing websites and applications. Must be comfortable with React.js
- Keeping up with the latest technological advancements in web and mobile app development
- Willing to commute to Bangalore office
- Should be able to join immediately
Qualifications
- Working experience – 2 to 4 years.
- Proven experience with WebFlow development.
- Experience in creating wireframes using Figma.
- Strong HTML5, CSS3 and JavaScript.
- Advanced CSS, animations, and responsiveness.
- Excellent communication and time management skills
- Strong attention to detail and ability to work collaboratively with cross-functional teams.
Day-to-day responsibilities:
Role - Javascript developer
Location - Jaipur
Experience - 1-5 years
Skills and Qualifications
● Experience in developing front-end components using Object-Oriented
JavaScript, HTML5, and CSS3
● Skilled at Object-Oriented JavaScript and having a working knowledge of at least one
of the following Frameworks (Angular, React etc.)
● Add on Excellent knowledge of working with dynamic data (e.g., JSON, XML)
●Good understanding of version control systems like Git
Roles and Responsibilities
● Develop new user-facing features.
● Optimize applications for maximum speed and scalability.
● Assure that all user input is validated before submitting to back-end services.
● Collaborate with other team members and stakeholders.
● Identify and establish best practices and frameworks keeping in mind the parameters of
performance, responsiveness, and reuse
● Translate designs and style guides into interactive user interfaces, ensuring cross
browser compatibility, performance and robustness
● Deliver high-quality code that is maintainable and readable.
● Develop and maintain features using JavaScript frameworks such as Angular or
React Skills
Responsibilities
- Develop web-based application for analytics using Angular
- Integrate and extend Python REST APIs and create visually stunning UI experiences for analysts and users.
- Create flexible dashboards and reports (using plotly, d3, etc) and leverage open source technology to create various components.
- Create a flexible UI for data analytics and big data usecases which can be used by Large Tier banks as well as smallscale agile startups
- Write unit tests and functional tests for the component using tools like Jasmine, Karma, Cypress, etc.
- Follow software development practices with continuous testing, development and integration (CD/CI)
- Write and maintain technical design documents and new-feature documents
- Collaborate closely with developers, engineers, testers, and product managers
- Participate in peer-based code reviews and design reviews
- Follow agile methodology and encourage collaboration with tools such as GIT, Confluence and Slack applications
- Undergraduate degree or above in computer science preferred
Required Qualifications
- Knows SPA and frontend technologies well
- Has used atleast 1 web framework: Angular / React / Vue / etc. and comfortable with Javascript/Typescript.
- Experience with styling (CSS / SCSS / others) frameworks like bootstrap, material, foundation, tailwind, etc. is a plus
- Knowledge on visualization frameworks like D3, plotly, highcharts, chart.js, etc. to make customizable dashboards.
- Has used testing libraries like karma, jest, jasmine, cypress, selenium, etc.
- Familiar with with frontend processes like State management (Redux), Reactive programming (rxjs), Authentication methods (JWT, SAML) etc.
- Basic knowledge about APIs (flask, django, nodejs) and worked on deploying web applications (nginx or apache or cloud technologies like AWS, GCP, docker, etc.) will be beneficial.
- Design and develop cloud native enterprise applications as per the strategic application roadmap of DSP
- Ensure strict adherence to code quality, coding standards and overall deliverable quality as per the defined standards
- Write automated unit and integration tests to ensure defect free code
- Learn and develop proof of concepts with newer technologies when required







