Sr. React Engineer - Remote

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.

Profile: React.js

Location: Andheri East, Mumbai

Experience Required: 3+ Years

Employment Type: Full-time

Required Skills & Qualifications

• Experience: Minimum 3+ years of professional experience in React.js development
• Core Technologies:Strong proficiency in JavaScript (ES6+)
• Extensive experience with React.js and its ecosystem
• Solid understanding of HTML5, CSS3, and responsive design
• Experience with state management libraries (Redux, Context API)
• Knowledge of modern build tools (Webpack, Vite, etc.)
• Familiarity with version control systems (Git)
• Technical Skills:Understanding of RESTful API integration
• Experience with testing frameworks (Jest, React Testing Library)
• Knowledge of modern CSS frameworks (Bootstrap, Material-UI, Tailwind CSS)
• Familiarity with TypeScript is a plus
• Understanding of performance optimization techniques

Exp: 3 - 6yrs
Notice period : Immediate - Max 60 days
Job Location : Gurgaon

Experience with client side Web technologies/frameworks such as Angular.js 1.x, React.js, Backbone, KnockoutJS, Bootstrap Experience with AngularJS 2+ is a strong plus.

Strong understanding of Web markup with HTML(5) and CSS(3) is a strong plus.

Ability to write high-performance, reusable code for UI components Build and support scalable, re-usable software Ability to work independently and within a team environment

Good written and verbal communication skills Solid understanding of cross-browser/platform consistency and compatibility Experience with frameworks such as jQuery Mobile, ReactNative, Appcelerator, Mootools, Kendo UI, Sencha Touch and ActionScript is a plus

Experience with Node.js, Bower, Yeoman, Gulp etc. is a plus Basic understanding of server-side CSS pre-processing platforms, such as LESS and SASS is a plus Proficient understanding of code versioning tools, such as SVN and Git is mandatory.

• ·       3+ Yrs Solid knowledge of frontend development with a minimum of 2 years of work on ReactJS,/ React native 
• ·       Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model
• ·       Strong & thorough understanding of Reactjs and its core principles
• ·       Experience with popular Reactjs workflows such as Redux
• ·       Knowledge of isomorphic React is a plus
• ·       Familiarity with RESTful APIs
• ·       Familiarity with modern front-end build pipelines and tools
• ·       High coding standards - understanding of test coverage best practices & test pyramid concept
• ·       Familiar with Continuous Delivery approach
• ·       Experience with Distributed and Concurrent Systems, knowing the tradeoffs between stateful/stateless and synchronous/asynchronous architectures
• ·       Passion about technology and its relationship with product and user experience
• ·       Ability to work independently - identify problems, create plans and implement solutions to them

Position Summary


Clarista.io turns current enterprise data silos into a ‘Live Data Network’, easy to use, always available, with flexibility to create any analytics. Clarista is designed for both business and technical users, hence the user interface plays a pivotal role in ensuring performance with large datasets and a superior user experience.

What You'll Do


You will be part of Clarista’s UI engineering team. You will work in our cloud native environment and perform following activities to support core product development and client specific projects:

• You will build & support responsive web user interfaces by using ReactJS
• You will ensure usability of the interfaces and workflows for end users
• You will integrate user interfaces with data and other interfaces through APIs
• You will collaborate with cloud and data engineering teams to enable end-to-end functionality
• You will partner with other team members in understanding the functional / non-functional business requirements, and translate them into software development tasks
• You will follow the software development best practices in ensuring that the code architecture and quality of code written by you is of high standard, as expected from an enterprise software
• You will be a proactive contributor to team and project discussions

 Who you are


• Strong education track record 
• Bachelors or an advanced degree in Computer Science or a related engineering discipline from Indian Institute of Technology or equivalent premium institute.
• 2-3 years of experience in UI Development using ReactJS
• An ideal candidate will be responsible to produce high-quality solutions; bringing a deep understanding of modern HTML, JavaScript, and CSS, and the software development life cycle and a strong ability to execute and implement standard software architecture patterns.
• Expert knowledge of JavaScript to design optimized and modular components that will be used across platforms.
• Proficient with ReactJS, Redux, Service Workers, Optimized coding practices, Progressive Web Apps (PWA), Context API, System design, Web concepts, Server-Side Rendering (SSR), lazy loading.
• Should have experience working with any of the chart’s library like charts.js, Highcharts.js, etc.
• Should know how to write modular and optimized code.
• Should have good knowledge around error handling.
• Fair understanding of responsive design and cross-browser compatibility issues.
• Experience versioning control systems such as GIT
• Strong problem solving and communication skills.
• Self-starter, continuous learner.

Good to have some exposure to

• Start-up experience is highly preferred
• Exposure to micro front ends.
• Agile software development methodologies.
• Working in multi-functional, multi-location teams

What You'll Love About Us – Do ask us about these!

• Be an integral part of the founding team. You will work directly with the founder
• Work Life Balance. You can't do a good job if your job is all you do!
• Prepare for the Future. Academy – we are all learners; we are all teachers!
• Diversity & Inclusion. HeForShe!
• Internal Mobility. Grow with us!
• Business knowledge of multiple sectors

• 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

Mastree's engineering team is working towards building a data science engine that enables students to learn in a way they understand the best. We believe in delivering learning experiences through engagement. The product is designed with countless embedded interactive information pieces to help the students imbibe the concepts better. At Mastree we take pride in being a part of the product that holds the potential to revolutionise the education process.

We are looking for folks who are passionate about creating interaction rich interfaces. Creative individuals who believe in the power of visuals.

Responsibilities:

• Creating visual elements that users see and interact within our web platform.
• This makes your role crucial for the success of the product.
• Working closely with the design, product management and development teams to create elegant, usable, responsive and interactive interfaces across multiple devices.
• Ensuring that the application is optimised both in terms of technology and in delivering the best educational content.
• Building web platform for our live tutoring platform
• Creating interactive learning activities for K12 students and work on our upcoming products

Requirements:

• You are an avid programmer
• You have great grasp of fundamentals of JavaScript and ES modules, new ECMASCRIPT concepts
• You have experience in ReactJS web app development
• You are an exceptional problem solver, with attention to details.

Brownie Points:

• Good HTML and CSS skills
• Experience in React-Native app development
• Ability to work in small teams and wear multiple hats