Sr Web 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.

Job Brief

The job requires Sr Frontend Developer. This Developer is expected to have strong technical skills, work closely with the other team members in development and ability to work stand alone. Ability to work on a small team with minimal supervision, Troubleshoot, test and maintain the core product software and databases to ensure strong optimization and functionality

Skills Requirement

• Bachelor’s degree in Computer Science or related field plus 3-5 Years of frontend relevant experience
• Familiarity with architecture styles/APIs (REST, RPC)
• Understanding of Agile methodologies
• Strong attention to detail
• Proficiency in HTML, CSS and Bootstrap
• Understanding of server-side CSS
• Strong knowledge of frontend scripting languages like JavaScript, jQuery, React js or Angular etc.
• Good understanding of asynchronous request handling, partial page updates, and AJAX
• Proficient understanding of cross-browser compatibility issues and ways to work around them
• Familiarity with browser testing and debugging
• Experience with responsive and adaptive design
• Experience with GitHub, Tortoise SVN Version Control
• Understanding of key design principles
• Strong attention to detail
• Knack for writing clean, readable, and easily maintainable code
• Sound analytical, problem-solving, and communication skills.

Responsibilities

• Translate application storyboards and use cases into functional applications
• Design, build and maintain efficient, reusable, and reliable code
• Ensure the best possible performance, quality, and responsiveness of applications
• Identify bottlenecks and bugs, and devise solutions to mitigate and address these issues
• Help maintain code quality, organization, and automatization
• Collaborating with coworkers to facilitate the creation of large, complex developments, as required.
• Reformulating existing code to ensure adherence to stipulated guidelines.
• Checking your code to detect and remedy errors and omissions.
• Testing your outputs to ensure that they are in excellent working order.
• Deploying developments and monitoring uptake by the target audience.
• Using clients' feedback to inform the creation of subsequent versions of each development.
• Remaining abreast of coding and technological changes that will impact your work.

• 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
• Use markup languages like HTML to create user-friendly web pages
• Design mobile-based features
• Collaborate with back-end developers and web designers to improve usability
• Maintain and improve website
• Develop new user-facing features
• Build reusable code and libraries for future use
• Optimize applications for maximum speed
• Get feedback from, and build solutions for, users and customers
• Write functional requirement documents and guides
• Create quality mockups and prototypes

• Proven work experience of 2+ years as a Front-end developer
• 1+ years experience of working in ReactJS
• Hands on experience with markup languages, including HTML5, CSS3
• Experience with JavaScript, CSS and jQuery
• Good understanding of asynchronous request handling, partial page updates, and AJAX
• Familiarity with browser testing and debugging
• In-depth understanding of the entire web development process (design, development and deployment)
• Understanding of layout aesthetics
• Knowledge of SEO principles
• Familiarity with software like Adobe Suite, Photoshop and content management systems
•  

Hiring For

Front-End Engineer - I / II / III

Radical is a platform connecting data, medicine and people -- through machine learning, and usable, performant products. Software has never been the strong suit of the medical industry -- and we are changing that. We believe that the same sophistication and performance that powers our daily needs through millions of consumer applications -- be it your grocery, your food delivery or your movie tickets -- when applied to healthcare, has a massive potential to transform the industry, and positively impact lives of patients and doctors. Radical works with some of the largest hospitals and public health programmes in India, and has a growing footprint both inside the country and abroad. 

As a Full Stack Engineer at Radical, you will:

• Work closely with all stakeholders in the healthcare ecosystem - patients, doctors, paramedics and administrators - to conceptualise and bring to life the ideal set of products that add value to their time
• Write code on the front-end, the back-end and anything it takes to solve the problems and delight users both internally and externally
• Build systems which have an extraordinary emphasis on capturing data that can help build better workflows, algorithms and tools
• Work on high performance systems that deal with several million transactions, multi-modal data and large datasets, with a close attention to detail

We’re looking for someone who has:

• Familiarity and experience with writing working, well-documented and well-tested code in at least two of the following: React/Redux (preferred), NodeJS (preferred), Golang and Python
• Proficiency in the features of the language they are using, with knowledge of standards and best practices (Eg: ES2015 and above, Python 3.5 and above, React Hooks/HOC/Redux)
• Knowledge of databases, and familiarity with REST API patterns
• Experience integrating with a wide variety of external tools and services
• Experience navigating AWS and leveraging appropriate services and technologies rather than DIY solutions (such as hosting an application directly on EC2 vs containerisation, or an Elastic Beanstalk)

It’s not essential, but great if you have:

• An established track record of building systems from scratch
• Experience with microservices and decomposition of monolithic architectures
• Proficiency in automated tests
• Proficiency with the linux ecosystem
• Experience in deploying systems to production on cloud platforms such as AWS
• Experience in TypeScript
• Meaningful open source contributions 

The position is open now, and we are onboarding immediately. 

Please write to us with an updated resume, and one thing you would like us to see as part of your application. This one thing can be anything that you think makes you stand apart among candidates: it can be an interesting hobby project that you’ve self-hosted, a research paper that’s been published, a collection of blog posts you’ve written, a repository you maintain, or your contributions to a major library. 

Radical is based out of Delhi NCR, India, and we look forward to working with you!

We're looking for people who may not know all the answers, but are obsessive about finding them, and take pride in the code that they write. We are more interested in the ability to learn fast, think rigorously and for people who aren’t afraid to challenge assumptions, and take large bets -- only to work hard and prove themselves correct. You're encouraged to apply even if your experience doesn't precisely match the job description. Join us.

• At least 2+ years of product development experience with expertise in designing and implementing high-performance web applications
• You must be proficient in Problem Solving and Data structures since you got to find the best way of handling a huge set of data.
• Strong hands-on experience in developing web applications using JavaScript
• Strong experience and knowledge in single-page frameworks like ReactJS/Angular/VueJs/other frameworks and ability to design the architecture of single-page applications.
• Strong hands-on experience with JAVASCRIPT, OOPS Concepts, Single page applications, REACTJS, D3, NodeJS, etc
• Build tools such as grunt, gulp, web pack.
• Exceptional debugging skills and knowledge on browser developer tools
• Familiar with RESTful APIs to connect applications to back-end services
• Familiar with optimization techniques (both in file weight and perceived/actual processing speed), debugging techniques, dynamic content retrieval, state management e.g: (Redux), cross-browser support.
• Experience in optimizing the application for performance and scalability using CDN, caching, etc
• Deep experience developing modular, object-oriented JavaScript Strong command of the HTTP protocol and the latest web standards
• Knowledge on Node server, Socket connections and mechanisms to handle real-time async data would be a plus.
• Very Good understanding of Agile/Scrum methodologies
• Very strong full stack experience with familiarity in serving technologies such as HTTP, CDN, proxies and caching
• Working experience with distributed teams and leading them is a plus
• Strong hands-on on writing test cases and documenting UI component.