React JS Front End Developer

Job Title : UI Software Engineer

Experience : 5+ Years

Location : Pune / Hyderabad

Work Mode : Hybrid

Employment Type : Contractual (6 Months + Extendable)

🚀 About the Role :

We are looking for a UI Software Engineer to build scalable, high-performance web applications using modern frontend technologies. You will work closely with product, design, and backend teams to deliver seamless user experiences while leveraging AI-assisted development tools.

🔥 Mandatory Skills :

React + TypeScript, GraphQL (Apollo Client), Jest/React Testing Library (MSW), Webpack/CI-CD, AI tools (GitHub Copilot/Cursor), microservices integration.

🔧 Key Responsibilities :

• Develop and deliver user-facing features using React & TypeScript.
• Build reusable, scalable UI components aligned with design systems.
• Integrate frontend with GraphQL (Apollo Client) and microservices.
• Collaborate with designers to implement pixel-perfect UI from Figma.
• Ensure performance, accessibility (WCAG), and cross-browser compatibility.
• Write unit/component tests using Jest & React Testing Library.
• Maintain frontend tooling (Webpack, ESLint, Prettier, CI/CD).
• Use AI tools (GitHub Copilot, Cursor AI) to improve productivity.
• Contribute to AI-driven automation (UI testing, component generation, etc.).

🧠 Required Skills :

• Strong experience in React + TypeScript.
• Hands-on with GraphQL (Apollo Client).
• Solid knowledge of HTML, CSS, JavaScript (ES6+).
• Experience with frontend testing (Jest, RTL, MSW).
• Familiarity with microservices architecture.
• Exposure to AI-assisted development tools.

⭐ Good to Have :

• Experience with NestJS backend integration.
• Knowledge of Cypress / Playwright.
• Exposure to LLMs / AI automation / agent workflows.
• Understanding of performance optimization & design systems.

Software Engineer (Web/UI Engineer)

Please apply only if you satisfy work experience requirements Our Vision , we are building a first-of-its-kind, lifestyle health product for Women in India. We believe that the future of health and fitness is digital, and women will drive the digital fitness revolution in India. Existing digital health and fitness products are highly transactional and we see a huge opportunity to build a truly aspirational product that will inspire and empower millions of women to lead healthier lives. If you are passionate about building a product that blends together, technology, content, and community, we would love to talk to you. looking for results-oriented Engineers. An ideal candidate for us would be a passionate builder of great products/frameworks and someone who would thrive in a fast-paced environment and enjoy the challenge of complex business contexts that are typically being defined in real-time. In this role, you will be responsible for building world-class technology products and platforms that are at the forefront of the technology revolution in the Indian healthcare ecosystem. You are someone who insists on the highest standards for quality, maintainability, and performance. You will be working in a fast-paced and agile work environment delivering quality solutions that have an immediate business impact. Responsibilities ● Own the end-to-end development and launch of features on the web ● Participate in scoping, planning discussions with the designers, PMs, and Leads ● Conceptualize and develop prototypes quickly ● Develop and own launch plans ● Identify opportunities and implement solutions to improve the performance and the architecture of our web stack ● We will depend on this person to set-up/improve the fundamental architecture of our web apps and so it is highly desirable to have someone who has worked extensively on React codebases. Required Skills ● Solid understanding of HTML and CSS ● Strong proficiency in JavaScript ● Responsive Web pages ● React preferably with Typescript ● Has worked with the react ecosystem for eg, redux, react-query, react-router etc. ● At least 2 years of experience working in a consumer tech set-up (ecommerce, D2C) ● Work with Rest APIs Good-to-have Skills ● Next.js ● Knowledge of deployment and hosting react apps

Why LiftOff? 

We at LiftOff specialize in product creation, for our main forte lies in helping Entrepreneurs realize their dream. We have helped businesses and entrepreneurs launch more than 70 plus products.

Many on the team are serial entrepreneurs and have had a history of successful exits.

• 5+ years of experience, working on frontend technologies
• Individual contributor - responsible for the design, coding, and unit testing
• Should have good working experience in React and React Native
• Should have a good understanding of state management in frontend/UI applications
• Proficiency in Javascript / ECMAScript 6+
• Creating custom, general-use modules, and components that extend the elements and modules of React
• Good knowledge of data structures, problem-solving / algorithms
• Knowledge of creating custom / reusable components
• Should know OOP Concepts

We are a group of passionate people driven by a set of core values. We strive to make every process transparent and have flexible work timings along with great startup culture and vibe. There are no job designations because its a flat hierarchy.

• Develop new user-facing features
• Build reusable code and libraries for future use
• Ensure the technical feasibility of UI/UX designs
• Optimize application for maximum speed and scalability
• Assure that all user input is validated before submitting to back-end
• Collaborate with other team members and stakeholders

• Proficient understanding of web markup, including HTML5, CSS3
• Basic understanding of server-side CSS pre-processing platforms, such as LESS and SASS
• Proficient understanding of client-side scripting and JavaScript frameworks, including jQuery
• Good understanding and knowledge of advanced JavaScript libraries and frameworks, such as AngularJS, KnockoutJS, BackboneJS, ReactJS, DurandalJS etc.
• Good understanding of asynchronous request handling, partial page updates, and AJAX
• Basic knowledge of image authoring tools, to be able to crop, resize, or perform small adjustments on an image
• Proficient understanding of cross-browser compatibility issues and ways to work around them.
• Proficient understanding of code versioning tools, such as Git
• Good understanding of SEO principles and ensuring that application will adhere to them

• Overall 3+  years of software development experience in building web-based and highly scalable applications. 

• Excellent understanding of core computer science concepts like algorithms, data structure, system design, OOP, etc. 

• Deep knowledge and development expertise in React Native/ReactJS 

• Hands-on coding experience in developing multi platform (iOS & Android) mobile applications with REST APIs.

• Experience working as a Full stack developer is a big plus.

• Experience in building single page applications or Javascript heavy front end applications in ReactJS is a big plus.

• Experience working in cloud environments with CI/CD and infrastructure automation is a big plus.

• Experience working in an agile team with software engineering practices like automated testing, test-driven-development, continuous integration, etc is a big plus. 

• Strong oral and written communication.

Here is a quick summary for you:

Position – Front end Developer

Experience – 1- 4 Years

Notice period - Immediate to 30 Days

Location – Bangalore / Gurgaon

What will you do?
.Complete ownership of a feature.
.Work closely with the product and design team to build, test and deploy
feature specifications.
.Build reusable, scalable, and efficient front-end systems.
.Suggest and implement better ways to improve existing systems and keep
everything bug-free.
.Keep updated with the latest web technologies coming up in the market
and suggest ways to implement them in our system.
Must Have Skills :- 
.2 years of strong hands-on experience building applications on the web
platform with JavaScript, HTML, and CSS.
.Experience in building responsive web apps using JavaScript.
.Strong understanding of the latest JavaScript ES6+ concepts such as
Promises, OOPs, Scoping, etc.
.Strong hands-on experience in building SPAs using React JS and its
companion libraries.
.Experience with build tools such as Webpack, Grunt, Gulp etc.
.Knowledge of state management libraries such as Redux, Flux, Context
API, etc.
.Strong debugging skills using browsers dev tools and familiarity with
cross-browser support.
.Familiarity with API dev tools such as Postman.
.Knowledge of RESTful APIs.

Responsibilities

• Develop our products front end
• Optimize applications for maximum speed
• Collaborate with back-enddevelopers and web designers to improve usability
• Stay up-to-date on emerging technologies

Requirements

• 4 to 6 years of work-experience as a Front-end developer
• Experience in developing front end applications at scale
• Strong knowledge and experience with JavaScript ,CSS, Angular,AJAX and jQuery,react,node
• Experience in CSS preprocessor (SASS/LESS/COMPASS), CSS framework – Bootstrap.
• In-depth understanding of the entire web development process
• Knowledge of Wordpress theme integration Template customization
• Able to Write code as Per W3 validation Rules, Cross browser, Cross Device, and SEO Friendly