Frontend Developer

Job Title : React.js + Web3 Developer

Experience : 2+ Years

Location : Gurgaon, Sector 48 (Work From Office)

Working Days : 6 Days

Employment Type : Full-Time, Permanent

Job Summary :

We are seeking a talented React.js + Web3 Developer to join our fast-growing engineering team.

The ideal candidate should have strong front-end development skills along with hands-on experience in blockchain/Web3 integrations.

Mandatory Skills : React.js, JavaScript/TypeScript, Web3.js/Ethers.js, Wallet Integrations, State Management (Redux/Zustand), REST APIs, Git.

Key Responsibilities :

• Develop responsive, scalable front-end applications using React.js & TypeScript.
• Integrate Web3.js / Ethers.js to connect UI with blockchain networks.
• Work with REST & GraphQL APIs for backend communication.
• Implement wallet integrations (MetaMask, WalletConnect, Coinbase Wallet, etc.).
• Collaborate with blockchain engineers for smart contract interactions.
• Optimize UI performance, handle state management, and write clean, maintainable code.
• Troubleshoot and enhance Web3 features within the application.

Mandatory Skills :

• Strong hands-on experience in React.js, JavaScript/TypeScript.
• Experience with Web3.js/Ethers.js, blockchain interactions.
• Understanding of wallet integrations, dApps, and blockchain basics.
• Knowledge of state management (Redux/Zustand/Context API).
• Strong debugging, problem-solving, and Git experience.

Nice to Have :

• Familiarity with Solidity, Smart Contracts, and Ethereum ecosystem.
• Experience with Node.js or backend systems.
• Understanding of IPFS, Layer 2 solutions, and NFT standards.

Frontend Engineer

React, TypeScript & Production Web Applications

📍 Mumbai (On-site) | Full-time | 3-5 years

About the Role:

Unico Connect is an AI-first technology partner that builds custom mobile, web, and AI products for clients across multiple geographies.

We are hiring a Frontend Engineer who will build production-grade web applications across customer engagements, partnering closely with designers, backend engineers, and AI engineers.

The mandatory requirement for this role is hands-on production experience shipping React applications, with ownership of at least one feature area end to end including state, API integration, and testing.

The role is hands-on.

Expect to implement complex flows, integrate with backend and AI services, contribute to a shared design system, write tests, and review the work of others.

A typical week includes a design handoff review, implementation of a new flow, a code review session, and a working call with a backend engineer on API contracts.

Responsibilities:

Production UI Development

Build production-grade React UI for customer engagements, including complex forms, dashboards, data-dense views, and AI-driven interactions.

API Integration

Integrate with REST and GraphQL APIs.

Handle authentication, streaming responses (Server-Sent Events, WebSockets), retries, and graceful error states.

State Management

Build state architecture using Redux, Zustand, Jotai, or equivalent.

Handle async state, optimistic updates, and cross-component coordination.

Design System Contribution

Implement components within an established design system.

Maintain token discipline and contribute back to shared components.

Testing

Write unit, integration, and end-to-end tests using Jest, React Testing Library, and Playwright or Cypress.

Performance and Accessibility

Profile and optimise rendering and bundle size.

Apply WCAG 2.1 AA practices in everyday work.

AI-Assisted Development

Use Claude, Cursor, and similar tools day to day.

Build discipline for reviewing and validating AI-generated code.

Requirements:

Hands-on Production React Experience (Mandatory)

Must have personally shipped at least one feature area end to end in a production React application, owning state, API integration, and testing.

POCs and internal tools alone do not qualify.

3 to 5 Years of Professional Frontend Engineering Experience

Strong JavaScript, TypeScript, and React

Solid with hooks, context, and modern patterns.

Working comfort with Next.js (SSR, SSG, app router).

State Management

Production experience with Redux, Zustand, Jotai, or equivalent.

CSS and Styling

Strong with Tailwind, CSS Modules, or CSS-in-JS.

Comfortable building responsive layouts.

REST and GraphQL

Comfortable consuming both.

Working knowledge of streaming responses and async patterns.

Testing Fluency

Jest, React Testing Library, and at least one of Playwright or Cypress.

Git and CI/CD Basics

Comfortable with feature branching, pull requests, and CI-integrated test runs.

Strong Written and Spoken English Communication

Nice to Have:

• Experience with editor or canvas UIs
• Storybook
• Animation libraries (Framer Motion, GSAP)
• Exposure to AI-driven UI patterns
• Visual regression testing tools

Job Summary:

We are looking for a talented and passionate Front-End Developer with 2–3 years of experience to join our growing team. You’ll be responsible for translating UI/UX design wireframes into responsive, high-quality code and delivering seamless user experiences across web platforms.

Key Responsibilities:

• Develop and maintain responsive web applications using HTML, CSS, and JavaScript (ES6+)
• Work with modern frameworks/libraries like React.js, Vue.js, or Angular
• Collaborate with designers and backend developers to integrate APIs and improve UX
• Optimize applications for speed and scalability
• Ensure cross-browser compatibility and mobile responsiveness
• Participate in code reviews, testing, and documentation

Requirements:

• 2–3 years of proven front-end development experience
• Strong proficiency in JavaScript, HTML5, and CSS3
• Experience with TypeScript, Tailwind CSS, or Next.js
• Experience with at least one modern JavaScript framework (React preferred)
• Familiarity with version control systems like Git
• Good understanding of RESTful APIs and asynchronous programming
• Strong problem-solving skills and attention to detail

Nice to Have:

• Familiarity with CI/CD pipelines and testing frameworks
• Basic knowledge of design tools like Figma or Adobe XD

Why Join Us?

• Dynamic and collaborative team culture
• Opportunity to work on impactful, real-world projects
• Flexible work environment and continuous learning support

Job Type: Full-time

Work Location: In person

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.

We're seeking a skilled Front-end Lead Engineer to lead an ongoing production-ready enterprise project and contribute to code while leading the frontend team. If you're adept at creating user-friendly products and eager to work with cutting-edge tech in a growing company, we want to hear from you. We value an entrepreneurial mindset and passion for technology in our team members.

Experience: 5+ Year

Working Time: 12.30 PM to 9.30 PM

• Front-End Development: Develop and maintain front-end components for our applications using React.js, Material UI, TypeScript, React Hook Form, and React Query.
• Collaboration: Work closely with Back-End, Business, and Design teams, as well as other Front-End developers to align efforts and successfully bring solutions to market.
• Quality Assurance: Ensure all work is properly stored, maintained, and developed on the company's network, servers, and other tools. Ensure that the code adheres to established quality standards and best practices.
• Prototyping and Development: Develop prototypes, software applications, systems, and solutions for business problems using the latest tools, open-source technologies, software applications and systems, cloud-based applications, and programming languages such as Java, C++, C#, SQL, and other languages.
• Full Lifecycle Development: Participate in the full lifecycle development of applications and complex systems, including coding standards, code reviews, source control management, build processes, testing, and operations, while maintaining the best possible performance, quality, and responsiveness of such systems and/or applications.
• Agile Development: Contribute to the development and implementation of an efficient and effective solution delivery system. Utilize tools like Jira to establish trackable timelines and measurable impacts on company productivity, ensuring adherence to agile methodologies.
• Security: Ensure the confidentiality and integrity of company materials, programs, issues, business strategies, and solutions; report suspected information security violations or breaches.
• Architecture and Design: Assist in building the architecture and design of critical databases and user interfaces for use by the company, its expert network, and clients.
• Troubleshooting: Troubleshoot software applications and systems, identifying bottlenecks, bugs, and defects, and devising solutions to mitigate and address such issues as they arise.
• Compliance: Ensure that software is developed to meet functional, non-functional, and compliance requirements, maintaining continued quality, organization, and automation.

Requirements

• Bachelor's degree in Computer Science or related field.
• 5+ years of professional experience in front-end development.
• Strong proficiency in React.js, Material UI, TypeScript, React Query, and React Hook Form.
• Experience with monorepo development, Nx knowledge is a plus.
• Excellent problem-solving and communication skills.
• Ability to collaborate effectively in a team environment.
• Experience with agile development methodologies and ceremonies

Benefits

• Gain real-world experience in corporate functioning.
• Learn to collaborate with diverse teams and meet deadlines in a professional environment.
• Access various learning and development programs to explore your passion.
• Work in a fast-paced, rapidly expanding tech team undergoing a revamp, with exposure to advanced technology and tools relevant to your role

At F5, we strive to bring a better digital world to life. Our teams empower organizations across the globe to create, secure, and run applications that enhance how we experience our evolving digital world. We are passionate about cybersecurity, from protecting consumers from fraud to enabling companies to focus on innovation. 
 

Everything we do centers around people. That means we obsess over how to make the lives of our customers, and their customers, better. And it means we prioritize a diverse F5 community where each individual can thrive.

About the position

F5 is looking for a Software Engineer with expertise in designing Web UI automation solutions to test high-scale distributed systems. You will collaborate with architects and application development teams to vet and validate test automation for an edge computing platform that is used to deploy global, scalable and secure applications.

Responsibilities:

• Understand the product architecture and come up with a frontend testing strategy such that quality is driven into the heart of the development process

• Perform integration tests on web services & APIs using SauceLabs, Postman, Swagger and other testing tools

• Design test and automation infra to test functionality, scale, performance, and reliability to ensure predictable delivery of quality releases

• Design and implement different test strategies - black box, grey box, and white box - to ensure the product is finished, secure, and effective

• Research, recommend and implement tools as needed to ensure quality

• Build test frameworks working within CI/CD pipeline processes, and provide automation expertise to development teams

Minimum Qualifications:

• Experience in designing automation software from the ground up, choosing the right infrastructure components, evaluating both open source and closed source software

• Hands-on experience with JavaScript (TypeScript will be a plus)

• Strong working knowledge of test automation frameworks and tools: Selenium, WebDriver, SauceLabs, Protractor, Gitlab CI, Jenkins, Jasmine, Karma

• Practical experience with CI/ CD methodologies & tools

• Good understanding of Testing fundamentals, Bug life cycle, SDLC, STLC, Smoke testing, Sanity testing, Regression testing

• Prior working experience in Web-based projects with a strong understanding of UI, cross-browser compatibility, general web functions, and standards is a must.

• Good written and verbal communication skills and flexibility to work with teams in different time zones

• BS/MS degree in Computer Science or equivalent with 6-10 years of experience in software development and/or test automation

Desirable:

• Experience with load balancer products such as F5, Envoy, Nginx, HA proxy

• Experience with Kubernetes container technology, Terraform, AWS

• Good understanding of networking protocols, HTTP/HTTPS, Proxies TCP, UDP, IP, HTTP, SSL, DNS, FTP, origin pools, etc

About the company

F5 provides a distributed cloud platform to deploy, connect, secure and operate applications and data across multi-cloud and edge sites. Line-of-business leaders can drive business transformation and automation by distributing workloads closer to business activity. DevOps teams can manage fleets of applications and infrastructure with less complexity. Network teams can simplify application connectivity and security across clouds.

The Job Description is intended to be a general representation of the responsibilities and requirements of the job. However, the description may not be all-inclusive, and responsibilities and requirements are subject to change.

Equal Employment Opportunity

It is the policy of F5 to provide equal employment opportunities to all employees and employment applicants without regard to unlawful considerations of race, religion, color, national origin, sex, sexual orientation, gender identity or expression, age, sensory, physical, or mental disability, marital status, veteran or military status, genetic information, or any other classification protected by applicable local, state, or federal laws. This policy applies to all aspects of employment, including, but not limited to, hiring, job assignment, compensation, promotion, benefits, training, discipline, and termination.  F5 offers a variety of reasonable accommodations for candidates. Requesting an accommodation is completely voluntary. F5 will assess the need for accommodations in the application process separately from those that may be needed to perform the job. 

• Full stack product engineering i.e. design, engineer, test, deploy, monitor, and maintain software components to QA and Production environments
• Design & engineer product experience & APIs conforming to defined quality, maintainability, scalability, and performance KPIs
• Build, maintain, and improve continuous integration and delivery lifecycle processes
• Automation of repetitive engineering and production activities

• Engineering in computer science
• 3+ year of relevant experience in product engineering with expertise in building frameworks, reusable components, and APIs
• Expert level skills in analytical & problem solving
• Strong programming and engineering fundamentals like Data Structures,
• Design Principles, TDD, and Performance Tuning to build scalable and performance optimized product
• Ability to communicate clearly in English

• HTML5
• CSS3 (Sass/Less)
• JQuery
• JavaScript (ES6) / TypeScript
• React.js
• Version Control : Git

We are looking for a seasoned frontend developer to join our product team. This role requires you to be a tech-savvy contributor in translating the customer needs and user expectation into interactive web apps. You’ll be an exceptional problem solver and take responsible actions in ensuring the application is optimized both in technology and in delivering best user experience.

Responsibilities:

• Work closely with design, product management and development teams to create elegant, usable, responsive and interactive interfaces across multiple devices.
• Turning UI/UX designs into prototypes, creating awesome interactions from designs, writing reusable content modules and maintainability of the code.
• Implement UI development principles to ensure that the product client-side serves at scale.
• Review and optimize the app usage by monitoring key metrics and rectifying the issues proactively.
• An ability to perform well in a fast-paced environment and bring in optimal flow for rapidly changing design/ technology.

Requirements:

• 2 to 5 years of relevant work experience as a web developer, UI developer, JavaScript expert or frontend engineer
• Experience in Frontend Technologies 
  • Typescript - the right way. Ie, not using it exactly like Javascript, instead using it in the way it was intended to be used.
  • React
  • GraphQL (Relay Specification is a plus)
  • Apollo Client for React OR React-Relay
• Worked in large React Projects preferably in TypeScript, with proper usage of Typing.
  • Familar with React Contexts and Hooks
  • Should have a very good understanding, and practical knowledge in Advanced Guides in React (https://reactjs.org/docs/forwarding-refs.html" target="_blank">https://reactjs.org/docs/forwarding-refs.html) 
• Familiar with UI layouts, SASS, bootstrap and the CSS GRID system
• Experience with a GraphQL backend using either Apollo Client for React or React Relay is a plus
• Experience using any one React UI Framework: Ant UI, Elastic UI, Material Framework for React, Blueprint UI or Bootstrap for React