

We are looking for a highly motivated and skilled Lead Frontend Developer who can understand both the design and business context in a technical ecosystem and manage the consumer facing user interface development life cycle, from designing, planning and prioritizing to testing and release.
If you have hands-on experience developing robust, pixel perfect & fluid user interface in React or Vanilla JavaScript with Redux, Thunk or similar frameworks and are ready to build & lead a team of developers, we'd like to meet you.
Requirements
- 6+ years of web UI development experience including 4+ years of deep, hands on experience in building robust, highly reusable and responsive web applications using HTML, CSS3, SVG, React, Redux, Thunk ecosystem
- Great problem-solving skills with solid data structures and algorithms knowledge
- Strong ability to translate the design/wireframes into reusable micro components
- Experience of leading, coaching and mentoring junior developers with good delegation and time-management skills
- Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model
- Thorough understanding of React.js and its core principles and has extensively worked with Redux, Thunk, Axios etc
- Knowledge of modern authorization mechanisms, such as JSON Web Token, Oauth2 etc
- Experience with common front-end development tools such as Babel, Webpack, NPM, etc.
- A knack for perfection, benchmarking and optimization
- Writing and maintaining batch jobs to streamline processes (Shell, Perl etc).
- Strong understanding of Agile and Lean software development processes and practices
- Worked with WebSocket, Push notifications etc
- Experience working with local-storage, cookies etc
- Proficient understanding of CORS issues and ways to work with such issues.
- Proficient understanding of social network APIs.
- Experience with data structure libraries (e.g., Immutable.js)
- Inclined to take ownership of tasks and to ship highly polished products with excellent attention to detail.
- Strong verbal and written communication skills in English.
- BE/BTech in Computer Science or a related field or equivalent practical experience

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Position Title : Frontend / Chrome Extension Developer (React + TypeScript)
Experience : 3+ years
Location : Remote
Job Role Summary :
Build and ship production-ready Chrome extensions that inject UI into existing web apps. Own content scripts, DOM integration, performance, and accessibility (WCAG 2.1 AA).
Mandatory Skills :
React, TypeScript, Chrome Extensions (MV3), Content Scripts, DOM Injection, MutationObserver, TailwindCSS/CSS Modules, Accessibility (WCAG 2.1 AA).
Key Responsibilities :
- Develop Chrome extensions using React + TypeScript.
- Inject and manage UI components within third-party web app DOMs.
- Write and maintain content scripts; handle dynamic pages via MutationObserver.
- Implement clean, responsive styling with TailwindCSS or CSS Modules.
- Ensure accessibility (WCAG 2.1 AA), keyboard navigation, and ARIA semantics.
- Integrate with APIs, manage extension permissions, storage, and messaging.
- Optimize performance, handle edge cases across sites, and write basic tests.
Required Skills :
- Strong React + TypeScript in production.
- Chrome Extension architecture: manifest v3, content/background scripts, messaging, permissions.
- DOM manipulation and safe UI injection strategies.
- MutationObserver, event delegation, handling SPA route changes.
- TailwindCSS or CSS Modules; solid CSS fundamentals.
- Accessibility (WCAG 2.1 AA) and cross-browser compatibility (Chromium/Firefox optional).
- Familiarity with build tooling (Vite/Webpack), linting, and Git.
Nice-to-Have :
- Experience with service workers, storage (sync/local), and i18n.
- Testing with Jest/RTL/Playwright.
- Security basics for extensions (CSP, sandboxing).

ABOUT UNRAVEL CARBON
Unravel Carbon enables companies to assess their carbon footprint by tracking their digital financial footprint with its proprietary carbon emission factor model; making it easy, fast and convenient to become climate positive.
We aim to accelerate the participation of all companies, big and small, in the global fight against climate change. And we want to do it the 21st century way—autonomous, painless, and beautiful.
Unravel Carbon consists of a team of software engineers, data scientists, founders and climate experts with a passion to solve the world’s most pressing issue—climate change. Collectively, our leadership team has launched and invested in multiple companies, and are now combining their experience and knowledge here at Unravel.
We are backed by some of the world’s best funds and investors and are part of Y Combinator’s W22 batch.
Unravel Carbon was founded in 2021 with headquarters in Singapore.
Unravel Carbon on LinkedIn: https://www.linkedin.com/company/unravelcarbon/
ABOUT THE ROLE
We are looking for early members of our India team. You will be part of the team that establishes our India product development team. We are looking for candidates who have high potential, are excited about tackling the climate change problem and are excited to grow in a high-growth environment while working with the Singapore HQ.
A junior/mid-level React developer. Must be comfortable to work in a small development team and have the initiative to work alone on smaller problem sets.
- Build frontend features using React & typescript
- Collaborate with the backend team on API requirements and contracts
- Analyse processes and code to troubleshoot problems and identify areas of improvement.
- Participating in continuing education and training to remain current on best practices, learn new technologies, and better assist other team members.
- Take lead on projects, as needed.
ABOUT YOU
- Willingness to learn, be a self-starter, and thrive in uncertainty; you would be one of the first few employees at an early stage startup, be prepared to venture into unknown territory, collaborate and learn
- Meticulous and detail-oriented
- Required skills:
- React,
- Typescript,
- React-query,
- GraphQL
- Charts & visualisations libraries
- Any ui components library skills
- Bonus skills:
- Next.js
- Server components
- CSS-in-Js
YOUR WORK STYLE
- An understanding of agile product development
- Self exploration and self learning of the latest technologies and applying them to solving the technical challenges our team face
- Self-starter (proactive and independent) with an ability to prioritise different assignments and tasks to meet deadlines
- Comfortable working in a collaborative environment
- Eager to think outside of the box and creatively problem-solve
YOUR PREFERRED BACKGROUND
A Bachelor’s Degree in Computer Science, IT, or related discipline AND 1+ years working experience in the IT industry.
WHAT WE OFFER YOU
We offer an exciting challenge for a purpose-driven person who thoroughly enjoys learning and takes up responsibilities in a multi-cultural, primarily virtual, and pioneering organisation.
We nurture a culture that allows you to thrive, where your skills can be honed and your ideas will be heard, and where collaboration across teams and with global partners is the default.
- Great knowledge of Javascript
- Minimum experience of 6 months to 1 year
- After 3 months, assured permanent job.
- Must have knowledge of Three.js
- Energetic and eager to tackle new projects and ideas

Experience in UX/UI designing and development.
Strong knowledge in UI/ MVC architecture.
Strong knowledge on HTML 5/ CSS3 standards.
Experience in UI Metadata Development (SASS or LESS).
Experience in Bootstrap, Material design frameworks.
Strong knowledge in Javascript and its frameworks like Jquery, React, Dojo etc.
Strong knowledge in Typescript, Ajax, JSON and XML.
Hands on experience in UI optimization best practice implementations.
Technical expertise in the design, development, coding, testing, and debugging of software.
Responsibilities:
- Designing and developing user interfaces using AngularJS/Angular best practices.
- Adapting interface for modern internet applications using the latest front-end technologies.
- Writing JavaScript, CSS, and HTML.
- Developing product analysis tasks.
- Making complex technical and design decisions for AngularJS/Angular projects.
- Developing application codes and unit tests in AngularJS, Angular, Micro-frontend architecture, and Rest Web Services.
- Conducting performance tests.
- Consulting with the design team.
- Ensuring high performance of applications and providing support.
Qualifications
- Bachelor’s degree in Computer Science or related background
- Minimum of 3 years of relevant experience
Required Skills and Experience:
- 3+ years’ experience with JavaScript (Particularly ES6), Typescript, CSS, HTML.
- 2+ years’ experience with Angular v9 or greater.
- Experience using JavaScript building tools like Grunt and Webpack.
- Client-side unit testing via Jest or similar testing library a plus
- Experience consuming RESTful APIs is strongly desired
- Experience working in agile project management methodologies (Scrum, Kanban, FDD)
- Excellent communication skills.
- Critical thinker and good problem-solver.


Job Title
Senior Frontend Developer (SDE-2)
Responsibilities:
- Collaborating with the UX team, product managers, back-end engineers and other technical teams to create new, delightful and scalable UI
- Taking responsibility for all front end development on a project
- Taking initiatives to build better and faster solutions to the problems of scale
- Adhering to style standards on fonts, colors and images
- Mentoring junior devs and helping them out with bugs
- Taking initiatives to improve the codebase, DX, abd performance
- Building out UI from design mockups & conducting layout adjustments based on feedback from users
- Being on production support
Requirements:
- Knowledge of and experience in advanced Javascript framework: ReactJS, AngularJS, and VueJS
- 3-5 years of overall experience
- Familiarity with common Javascript Libraries such as jQuery would be a plus
- NodeJS knowledge is a plus
- Knowledge about UI testing automation
- UI Performance: should have hands on experience of optimizing page load, rendering, and caching
- Sense for appeal & aesthetics from a usability perspective
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Skills
REACT.JS, FRONT END, LEADERSHIP SKILLS

Engineering @ Relevel
- We use cutting edge technologies to build our products which means you get to be updated on the latest tech stack.
- You don’t need to have experience in any of our specific technologies;we are good at teaching our Engineers. Our diverse group of Engineers are a great team to work with and to learn.
- We deploy changes to production multiple times a day.
- Blameless culture and a continuous learning mindset
What engineers do @ Relevel
- Making a global platform with the scale of millions of users.
- Working directly with designers and PMs to make a world class test taking experience.
- Building a platform for companies and writing an ML based algorithm to match candidates and companies.
- Building an Ed-Tech product for the upskilling of candidates.
What you need to bring
- Strong understanding of JS fundamentals and going deep into it coupled with experience in modern frameworks like ReactJs, Vuejs etc.
- The ideal person has worked with product teams in startups and taken features (or entire product modules) to production deployment which was then consumed by real users.
- Proficiency in building a highly scalable frontend.
- Ownership mindset- Taking end to end ownership of frontend initiatives and being part of the core team in driving the overall growth of the organisation in achieving its vision.

- Substantial experience in building large complex and performant web applications using HTML5, CSS3, Typescript and Javascript across multiple browsers (Especially IE11).
- Experience in frameworks such as React (Redux, Redux Thunk or Saga, React Router, React Hooks) , Node JS and good understanding of the basics of these frameworks and their life cycles.(MUST HAVE)
- Experience in frameworks like Bootstrap and CSS pre-processors like SASS and LESS is desirable.
- Deeper understanding of network layer, HTTP, HTTPS, cookies, local storage.
- Knowledge to handle real-time async data would be a plus.
- Good knowledge on build tools like Webpack and Gulp
- Good knowledge on testing tools like Jest, Cypress, Jasmine, Karma, etc
- Experience in Git source control
- Deeper understanding of Chrome Dev Tools.
- Deeper knowledge of UI optimizations and performance.
- Excellent communication skills, good visual design sense, in-depth experience in developing web-based applications.
- Experience leading multi engineer projects and mentoring junior engineers.
- Command an impressive portfolio of the latest UI technologies is a plus


