
Responsibilities :
- Develop user-facing stack from scratch
- Build reusable code and libraries for future use
- Ensure the technical feasibility of UI/UX designs
- Optimize application for maximum speed and scalability
- Collaborate with other team members and stakeholders
Technology Skills :
- Proven 4 years work experience as a ReactJS Frontend developer
- In-depth understanding of the entire web development process (design, development and deployment)
- Good experience with Typescript and ReactJS (17.x). NodeJS knowledge is a plus.
- Familiarity with Unit Testing Frameworks, UI Testing, Monorepos and Graphql principles
- Knowledge of Alerting and Monitoring tools
- Knowledge of SPA principles
- UI Performance: should have hands on experience of optimising page load, rendering, caching
- Sense for appeal & aesthetics from a usability perspective.
Soft Skills :
- Obsessed with best practices, structuring, documentation and have an eye for detail.
- Self starter with a high level of drive and commitment.
- High energy and drive to work in a startup environment.
- Conceptual thinking, flexibility and ability to juggle with multiple responsibilities.
- Ability to work under pressure and confidence to deal with complex issues.
- Good communication skills.
- Hands-on and detail oriented.

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Job Description: React Developer (3–5 Years Experience)
Location: Mumbai
Employment Type: Full-time
Role: Frontend Developer (React.js)
About the Role
We are looking for a highly skilled React Developer with 3–5 years of hands-on experience in building modern, scalable, and responsive web applications. The ideal candidate should be proficient in React.js, frontend architecture, state management, and UI best practices.
Key Responsibilities
- Develop responsive, high-performance web applications using React.js, JavaScript/TypeScript.
- Build reusable components and front-end libraries for future use.
- Work closely with UI/UX designers to convert wireframes and prototypes into functional user interfaces.
- Optimize applications for maximum speed, scalability, and cross-browser compatibility.
- Integrate RESTful APIs and work collaboratively with backend teams.
- Participate in code reviews and contribute to continuous improvement of best practices.
- Troubleshoot, debug, and enhance existing applications.
- Ensure high code quality through proper testing and documentation.
Required Skills & Experience
- 3–5 years of professional experience in React.js development.
- Strong proficiency in JavaScript (ES6+) and TypeScript.
- Hands-on experience with Redux, Context API, or other state-management libraries.
- Good understanding of HTML5, CSS3, SASS, and modern UI frameworks.
- Experience working with REST APIs, JSON, and asynchronous programming.
- Familiarity with build tools like Webpack, Vite, Babel, etc.
- Understanding of Git and version control workflows.
- Knowledge of React hooks, performance optimization, and component lifecycle.
- Experience with testing frameworks (Jest, React Testing Library) is a plus.
Good to Have
- Experience with Next.js or server-side rendering.
- Knowledge of UI libraries such as Material-UI, Ant Design, or Chakra.
- Familiarity with Agile/Scrum methodologies.
- Basic exposure to DevOps tools and CI/CD pipelines.
Why Join Us?
- Opportunity to work on cutting-edge technologies.
- Collaborative, fast-paced, and growth-oriented environment.
- Competitive compensation and employee benefits.
Responsibilities
- Translate mockups and prototypes into interactive and responsive web applications with modern front-end technology
- Take highly complex information and make it digestible for business users
- Objectively navigate the unknown with effective communication and decision making
- Apply atomic design principles to emerging technologies and frameworks
Eligibility
- Experience in Angular/React, proficiency with JavaScript/TypeScript, HTML, and CSS
- Expert knowledge of responsive web design
- Knowledge of Git, GitHub, GitLab, and/or Bitbucket
- Knowledge of programming patterns, design patterns, and principles
- Have a great sense of design and basic knowledge about interaction design concepts
TechUnity is looking for a highly motivated and skilled React JS / React Native software developer who is comfortable with both front and back-end programming. Developer will be designing and implementing attractive and intuitive Web-based user interface and developing backend services to support front-end requests. Developer will be required to see out a project from conception to final product, requiring good organizational skills and attention to detail.
Other Responsibilities:
· Seeing through a project from conception to finished product
· Designing and coding of frontend web architecture
· Designing user interactions on web pages
· Developing backend server architecture
· Creating specification for servers and databases needed
· Ensuring responsive performance of applications.
· Designing and developing APIs.
· Meeting both technical and consumer needs.
· Staying abreast of developments in web applications and programming languages
· Good problem-solving skills.
· Excellent verbal communication skills
few products that they can use on the internet. One big need is that of sharing thoughts. Twitter serves this need globally through a micro-blogging platform. However most of the Tweets are in English and the vernacular Indian feels out of place on it. To solve that problem, we started this company.
It is is a micro-blogging platform in Indian languages. It is an app built in India, for Indians, to share their thoughts and opinions on any topic in their mother tongue using Audio/Video/Text.It gives a voice to Indians and enables the “Best of India” to share their thoughts with the “Rest of India”. It provides a personalized feed to users by letting people select the people they want to follow. The user is then shown content from these people. Some of the top minds of India are invited on Koo to share their thoughts and opinions on various topics. Users can follow such personalities and follow what they are talking about, and share their opinions too.
It is a Series A venture funded company. It has raised $6.5 million from stellar investors like Accel Partners, Shunwei Capital, Kalaari Capital, 500startups and Blume Venture Partners.
Founding Team consists of veteran internet entrepreneurs - Aprameya Radhakrishna (CEO, Taxiforsure) and Mayank Bidawatka (Co-founder, Goodbox & Coreteam, redBus).
Technology skill sets required for a matching profile
Work Experience between 3 to 7 years in web development with desire to work in fast paced startups.
● Should be capable of handling a couple of high traffic websites without much of a guidance. Good at debugging and solving cross browser issues.
● Must have experience with Express, ReactJs, Redux, Webpack etc. First hand knowledge of building PWA is preferred.
● Must understand how to optimize web page performance for SEO and snappy user experience.Must have used tools like light-house etc.
● Must be adept in using REST APIs and defining best suited contracts and schema for interacting with them.
● Knowledge of building isomorphic (with some parts of the page as server side rendered) web applications
● Desire to work in fast paced startups
• Technical end-to-end design for stories by collaborating with business analyst/product owner, technical architect and clients
• Implement stories end-to-end, which includes Frontend, Backends for Frontend (BFF), Caching and also service orchestration in some cases) using best engineering practices like test-driven development, SOLID principles and consideration of non-functional requirements like performance, scalability, security or cloud readiness (as applicable) at the story level
• Automates testing at unit, module and integration level as needed using tools relevant for the platform (e.g. Jasmine, Jest, Karma, Webdriver.io etc.)
• Focus on quality by implementing best practices like logging, calling out technical debt, meeting KPIs using code quality tools like SonarQube, ESLint (customize and sync with Sonar), Stylelint/Sasslint and so on.
• Hands-on with automating redundant work, like common component structure, both in terms of scaffolding as well as using the right design patterns / creating abstractions.
• Mentor junior engineers in helping review code, guiding on technical decision making
Key Requirements:
• 4-9 years’ experience
• Hands-on knowledge of HTML5, CSS3, JavaScript
• Hands-on experience working with Object Oriented JavaScript (OOJS), JavaScript - and practical uses in building complex interactive experiences, primarily with ECMAScript 2015+. You should be up-to-date with new specifications (different stages), and also, using transpilers like Babel to use features from all stages
• Good understanding of creational and structural design patterns in JavaScript
• Experience working with Single Page Applications (SPA) with universal rendering capabilities.
• Good understanding of React.js, its core principles - lifecycle methods, virtual DOM etc. and at least 6 – 12 months hands-on experience with the same
• Understanding of one-way data flow and the Flux architecture.
• Understanding of stateful (container) vs stateless (presentational) components and how to break down the application page into components
• Core understanding of how React’s state management works out of the box.
• Understanding of different CSS architectures that go hand-in-hand with React.js application development. Pros and cons of component-level CSS vs global and where to apply each
• Thorough understanding of Webpack bundler (version 2+).
• Good understanding of the Web Components standard.
• Hands-on experience with building Progressive Web Apps (PWAs) on any framework.
• Hands-on experience with Frontend Performance Optimization – especially in a React application with respect to resource loading strategy, CPU/Memory profiling on the browser.
• Hands-on experience with test-driven development using Jest or equivalent. Familiar with snapshot testing, code coverage. Experience working with utilities like Enzyme
• Experience using fluid grids, and building responsive/adaptive websites using Bootstrap etc.
• Understanding of SEO and accessibility and making it part of the development workflow
• Moderate to Strong graphics manipulation/optimization skills using Photoshop is a plus.
You must be comfortable working as part of a team while taking the initiative to take lead on new innovations and projects.
Qualifications
Proven 4+ experience as a client-side web Developer Knowledge of multiple front-end languages and libraries (e.g. HTML/ CSS, JavaScript, XML, jQuery)
Write well designed, testable, efficient code by using best software development practices
Add-Ons
Expertise in managing translation solutions for website localization.
Past experience in working in Similar Role
Good understanding of Software development
life cycle process Be responsible for maintaining, expanding, and scaling our site
Excellent communication and teamwork skills
Great attention to detail
Organizational skills'
An analytical mind
Degree in Computer Science, Statistics or relevant field
We are looking for an experienced JavaScript developer who is proficient with React.js Your
primary focus will be on developing user interface components and implementing them
following well-known React.js workflows (such as Flux or Redux). 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. Therefore, a
commitment to collaborative problem solving, sophisticated design, and a quality
product are important.
Must have:
● Strong proficiency in JavaScript, including DOM manipulation and the JavaScriptobject
model.
● Thorough understanding of React.js and its core principles
● Experience with popular React.js workflows (such as Flux or Redux)
● Understanding of CSS pre-processing platforms, such as LESS and SASS
● Knowledge of CSS frameworks, (such as Material UI, Bootstrap)
● Knowledge of RESTful APIs
● Experience with common front-end development tools such as Babel, Webpack,NPM,
etc.
● Ability to understand business requirements and translate them into technical
requirements.
● Experienced with code versioning tools such as GIT
Good to have.
● Familiarity with newer specifications of ECMAScript
● Familiarity with modern authorization mechanisms, such as JSON Web Token
● Familiarity with Angular (non-mandatory)
Roles and responsibilities
● Developing new user-facing features using React.js.
● Building reusable components and front-end libraries for future use.
● Translating designs and wireframes into high-quality code.
● Optimizing components for maximum performance across a vast array of web-
capable devices and browsers.
As a front end product engineer, you will work with product engineers & designers to improve the overall user experience, performance, reliability and scalability of our systems. From handling millions of messages/ payments a minute to extract buyer intent and priority for processing these transactions to building tools to trace and visualize payments made across a business you'll be involved in projects that span all aspects of the business. Our goals includes scaling and architecting systems to support advanced product features that may not be currently viable because of hard technical considerations. You'll collaborate with our small, but effective, framework team with a track record of highly impactful work for Finly.
WITHIN 1 MONTH, YOU'LL
- Complete Finly's new-hire training week, and learn Accounts Payable Processes & the various partners we work with to make Finly happen.
- Investigate, solve and release a bug fix to production. In order to do this you will ramp up on Finly's engineering stack by pair-programming with your teammates and attending engineering training sessions designed and presented by the team.
- Meet with cross-functional peers around the company to learn how the product functions.
- Complete your engineering starter project and deploy your first changes to production.
WITHIN 3 MONTHs, YOU'LL
- Learn Finly's technical stack and apply development patterns through your work.
- Engage in your first on-call rotation in Support Engineering to help diagnose and resolve production problems and customer issues
- Individually contribute reliably ship full features to customers.
- Estimate technical scope and time to complete major features and initiatives.
WITHIN 6 MONTHS, YOU'LL
- Move to new product vertical & initiative and start designing scalable frontend systems.
- Have made a visible impact on the product for all the users of Finly.
- Work closely with your team to remove roadblocks, educate on best practices and improve how we work.
- Be comfortable navigating most of frontend stack and infrastructure
- Be responsible for the planning, scoping, design, and implementation of new features
- Participate in interviewing and hiring, as a way to influence team growth and how our values inform our culture
WITHIN 12 MONTHS, YOU'LL
- Individually contribute and lead teams to reliably ship full improvements to our frontend services
- Define tools and standards for product engineering to measure performance impact of releases
- Drive service reliability by developing tooling that enables metric visibility using SLIs, SLOs, and SLAs
- Developing Production Readiness standards to ensure service reliability
- Help grow other engineers technically by mentoring, pairing and developing other learning opportunities
- Collaborate with engineering and product leadership to define priorities and set delivery goals
Your understanding of front-end technologies, web application dev, system design, will be put to the test. You will take up a project for a team and then move to another project.
Join us & have the authority and responsibility to make things happen!
Role
- Work as part of a small team to build React Native iOS / Android applications.
- Design, build and maintain excellent React Native applications with clean code.
- Implement pixel perfect UI's that match designs.
- Implement clean, modern, smooth animations and transitions that provide an excellent user experience.
- Integrate third-party API's.
- Developing new user-facing features using React Native.
- Building reusable components and front-end libraries for future use
- Translating designs and wire-frames into high-quality code
- Optimising components for maximum performance across a vast array of android and ios devices.
- Release applications to IOS and Google Play stores.
- Work with native modules when required.
Skills
- Strong proficiency in React Js, React Native, JavaScript, TypeScript, Object Oriented Programming - 2+ years of professional experience working with React Native
- Deep knowledge of component state management experience (specifically in React Native)
- Familiarity with native build tools, like XCode, Gradle
- Good understanding of Redux
- Ability to work through new and difficult React Native issues and contribute to libraries as needed.
- Ability to create and maintain continuous integration and delivery of React Native applications.
- Ability to understand business requirements and translate them into technical requirements
- A knack for bench-marking and optimisation
We're looking for developers who are interested in solving problems. We like people who are willing to work across the technology spectrum.
An example of a typical problem would be a product feature that requires UI/UX (Typescript/React/HTML/SCSS), server changes (Java/Scala/R), and database changes (MySQL).
You will own some or all of a product/feature. You will also mentor others, read and review code, maintain code, deploy code, tune the performance of systems, as required.
Requirements :
- We're looking for 4 years or more of relevant work experience. That being said, if you think you have the necessary skills to make the number irrelevant then do talk to us
- Proficiency in Java, JavaScript, and sufficient knowledge of database concepts to write efficient queries
- Working experience in one or more of React, Redux, Typescript, and associated tools such as Webpack, Grunt, Gulp etc.
- Working experience in HTML, (S)CSS
- Working experience writing unit/functional/integration tests
- Knowledge of Java 8 features such as streams and lambdas is a plus
- Knowledge of REST concepts and design is a plus
- Knowledge of ES6 features/syntax is a plus
- Knowledge of functional programming concepts is a plus
- Knowledge of build/deploy tools such as Ant, Maven, Gradle, Ansible, Chef, Puppet etc. is a plus
- Knowledge of one or more scripting languages such as Awk, Bash, Perl, Python, Rubyetc. is a plus
- Ability to use modern IDEs such as VSCode, IntelliJ IDEA, Eclipse etc. is a plus
- Knowledge of container technologies such as Docker, Kubernetes, etc. is a plus
Bonus Points :
- For product experience. We're a product company. Talk to us if you have worked on software products
- For startup experience. Have you worked in a any startups? We're always looking for people who have startup experience
- If you've developed and deployed any software for your own, or others- use
- If you've contributed to open source projects
- If you've spoken at developer conferences, published articles in tech websites, published podcasts
- If you communicate well. Do you blog? Can you explain ideas clearly and succinctly? Can you answer questions in short, clear sentences?
- If you have technical certifications such as AWS, Docker, Redhat etc.
- If you're self taught. Have you learned other programming languages, technologies etc. on your own? Share the details of the courses you took online, for instance.
- For deep knowledge in one or more areas. We like people who dig down, understand concepts in detail
- If your code/work is out there in public. We'd love to see what you've developed and deployed to the external world











