Kvantum is a career-changing opportunity where you will get to learn the latest and greatest marketing analytics for CPG, Retail, eCommerce, Pharma industry (to name few). At Kvantum, you will be part of a rapidly growing company. You will be able to make your mark; you’ll help write the story. You will get the chance to go above and beyond, being a hero to your clients and to your team. You will get the chance to make a big impact, applying your coding skills, domain expertise to ready the most innovative marketing science product to Fortune 1000 customers.
What you’ll be doing in your new job:
As a Front End/UI Developer at Kvantum you will be working with incredibly talented, optimistic people in an environment that fosters innovation builds trust, and frequently erupts into laughter. You are a natural developer and enjoy helping team members in coding and development. You command respect from your superiors and also from peers. In this role, you’ll demonstrate a proven track record of developing enterprise-grade web frontends using technologies such as JavaScript, Ajax, XHTML and JSON. You'll join a team of exponential application developers who are working hard to develop our next generation SaaS marketing applications.
Primary Responsibilities includes:
- Develop Proof-of-Concept and prototype applications using new technologies and frameworks. In addition to collaborating with internal teams and clients to create innovative solutions.
- Help establish GUI best practices and JavaScript frameworks for web development.
- Provide context and guidance for integration and implementation of Front-End Interfaces
- Translate wireframes, comps, and functional requirements into functional HTML/ CSS / Javascript.
- Develop standards-compliant mark-up and code for web sites and applications
- Develop JavaScript using standard Frameworks (jQuery, etc.)
- Develop small to medium size custom JavaScript libraries for reuse across the application
- Provide technology and implementation expertise to the domain, projects, or client
- Maintain leading-edge knowledge in emerging technologies and frameworks
- Participate in knowledge sharing and lessons learned sessions from project experiences
For this position, you must have:
- Expert JavaScript/HTML/CSS coding skills.
- 2-4 years of professional experience
- Minimum 2 years of relevant experience in javascript
- Minimum 1 year of relevant experience in React.js
- Hands-on experience with the implementation of different design patterns
- Proven experience of developing software using the Agile/SCRUM development methodology
- Command of web standards, CSS based design, cross-browser compatibility
- Experience to optimize the performance of the web application;
- Good understanding of page rendering, DOM manipulation, caching, REST API
- Experience of developing the application using Test-driven Development(TDD)
- Experience of working on LINUX environment
- Attention to detail, Dedication, and Problem-Solving skills.
Nice to Have:
- Working experience in any of these technologies and frameworks: D3.js, Node.js, Express.js, Elasticsearch, GraphQL, Redis
- Experience working with start-ups.
- A good learning curve for new technologies.
We provide a competitive stipend and abundant opportunity for talented people to grow faster. Our people (as we call them Kvants) know how to celebrate success (monthly team events, quarterly company events, employee awards, etc.) and work smart to achieve desired goals.
Disclaimer:
Outside Recruiters: Kvantum prefers to recruit candidates directly. We do not accept unsolicited agency resumes. Please do not contact Kvantum employees with unsolicited resumes. Any resume sent by an outside agency without an explicit signed Kvantum generated agency agreement in place will be considered unsolicited and will not be eligible for payment.

Similar jobs
· 7+ years of professional experience in front-end development.
· 5+ years of hands-on experience with React.js and its ecosystem (Redux, Context API, Hooks, etc.)
· Strong understanding of JavaScript (ES6+), HTML5, and CSS3.
· Experience with RESTful APIs, GraphQL, and WebSocket integration.
· Proficiency in modern build tools (Webpack, Vite, Babel, etc.).
· Expertise in state management libraries (Redux, MobX) and React Query.
· Solid understanding of UI/UX principles and responsive design.
· Experience with testing frameworks (Jest, React Testing Library, Cypress, etc.).
· Familiarity with modern CI/CD pipelines and version control tools (Git).
Wissen Technology is Hiring for React Developer
About Wissen Technology:
At Wissen Technology, we deliver niche, custom-built products that solve complex business challenges across industries worldwide. Founded in 2015, our core philosophy is built around a strong product engineering mindset—ensuring every solution is architected and delivered right the first time. Today, Wissen Technology has a global footprint with 2000+ employees across offices in the US, UK, UAE, India, and Australia. Our commitment to excellence translates into delivering 2X impact compared to traditional service providers. How do we achieve this? Through a combination of deep domain knowledge, cutting-edge technology expertise, and a relentless focus on quality. We don’t just meet expectations—we exceed them by ensuring faster time-to-market, reduced rework, and greater alignment with client objectives. We have a proven track record of building mission-critical systems across industries, including financial services, healthcare, retail, manufacturing, and more. Wissen stands apart through its unique delivery models. Our outcome-based projects ensure predictable costs and timelines, while our agile pods provide clients the flexibility to adapt to their evolving business needs. Wissen leverages its thought leadership and technology prowess to drive superior business outcomes. Our success is powered by top-tier talent. Our mission is clear: to be the partner of choice for building world-class custom products that deliver exceptional impact—the first time, every time.
Job Summary:
We are seeking highly motivated React Developer
Experience: 8+ Years
Location: Pune/ Mumbai
Mode of Work: Full Time
Key Responsibilities:
• Should have 8+ years hands on experience in web technologies like JavaScript, HTML5 & CSS.
• Expert level knowledge of JavaScript including latest edition(s) of JavaScript (ES2023). Knowledge of typescript is a plus.
• Hands on experience with JavaScript frameworks like React 17 and above versions
• Good understanding of asynchronous request handling, partial page updates like Promises, RxJS
• Proficient in advanced CSS3, HTML5 and Bootstrap. Exposure to css-in-js libraries like styledjs or others is beneficial.
• Able to translate mockups in figma or illustrator to actual working components.
• Working experience on testing tool like karma/jasmine/enzyme.
• Basic understanding of nodejs is beneficial.
• Proficient understanding of code versioning tools, such as Git
• Excellent analytical/reasoning skills
• Good team player
• Excellent written and verbal communication skill
Build the foundation of our supply side (enterprise) product from
scratch. Maintain high standards of pixel perfect Ui’s and efficient User
Experiences.
Our Supply Side ecosystem involves a plethora of products such as
Catalog Management, Analytics Dashboard, Orders Processing, Finance
Reconciliation, Notification centres etc. Develop a deep understanding
of the mentioned use cases and build the systems for scale.
Coordinate with Product managers, Product Designers & Backend
Developers and outline sprints and tasks on a weekly basis.
Conduct Comprehensive Unit tests before passing features to QAs. This
requires a good top level understanding of backend infrastructure.
Maintain High level of Code Quality and constantly optimize for
performance and user experience.
Be Collaborative. Self-reliant and always keep pushing the limits of your
knowledge
- 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 the back-end
- Collaborate with other team members.
Skills And Qualifications :
- Proficient understanding of web markup, including HTML5, CSS3, Bootstrap, Flexbox.
- Proficient understanding of advanced JavaScript libraries and frameworks, such as ReactJS
- Good understanding of asynchronous request handling, partial page updates, and AJAX framework.
- Basic understanding of server-side CSS pre-processing platforms, such as LESS and SASS.
- Proficient understanding of cross-browser compatibility issues and ways to work around them.
- Proficient understanding of code versioning tools, such as Git, Github
web modules
● Partner and work closely with Backend developer for seamless API integration
● Build usable product by evaluating through the eyes of the customer; builds strong
customer engagement and creates processes with customer viewpoints
● Develop well-written front-end code for new product features as well as maintain code
and fix defects within the existing code base
● Apply best-practices and coding patterns to ensure your solutions are maintainable,
modular of high code-quality and work well across browsers and devices
● We have multiple automated checks in place before your code goes live. Some important
ones include bundle size, Lint errors, Lighthouse Scores, integration test suites and
many more, so we expect you to be compliant with them. We want our developers to be
lazy, they should be always looking for opportunities to automate anything and
everything
Apply if you have...
● A graduation/ post-graduation degree in Computer Science/ Mathematics (IITs, IIITs
and NITs preferred)
● 2.5 - 5 years of strong experience and 100% hands on with Core and Object Orient
Javascript
● Good knowledge of NodeJs fundamentals and architecture
● Hands on experience with HTML and CSS
● An experience with ReactJs, Redux, React Router, GraphQL and Svelte
● An experience with build tools like grunt/gulp/webpack Linting, Compiling, Minifying, etc.
● An experience in performance optimization for CSS, JS, images, asset caching
● An experience with best practices for JS development using jslint, testing frameworks
etc.
● Hands on experience with version control system preferably Git
● An experience with package managers like npm or yarn
● An experience with Cloud based development (AWS)
● An experience with micro services
Skills Required:
- Deep understanding of React.js and its fundamentals, ideally including modern features like hooks
- Excellent understanding of TypeScript/Javascript including the OOP concept and how shadow DOM and DOM work
- Experience with widely used React.js state managers like Flux/Redux
- Knowledge of RESTful APIs
- Familiarity with modern front-end build pipelines and tools like Webpack, Babel, NPM etc
- Knowledge of the overall browser rendering behaviour and measuring and optimising performance
- Strong hands-on experience with source code management systems like Git
Responsibilities
Develop new components and features for our front-end app(s) Write, audit, and improve our test coverage Document and refactor our front-end codebase Profile and improve our front-end performance Write about your work and contribute back to open source.
Requirements
3+ years' experience working with a JavaScript framework, preferably React In-depth knowledge of JavaScript, CSS3, HTML5 and front-end languages In-depth understanding of JavaScript, the DOM, and relevant concepts Proficiency with browser based debugging and performance testing Understanding of progressive web apps (PWA) Experience with a testing framework (Jest/Mocha) Experience using Git Excellent communication skills, both written and verbal
About the company
One of Asia’s largest global sports media property in history with a global broadcast to 150+ countries. As the world’s largest martial arts organization, the company is a celebration of Asia’s greatest cultural treasure, and its deep-rooted Asian values of integrity, humility, honor, respect, courage, discipline, and compassion.
About the Role
The Company's Engineering team in Bangalore, India is building products for the Martial Arts fans across the world. As part of the engineering team, you would be expected to have deep technology expertise with a passion for building highly scalable products.
This is a unique opportunity where you can impact the lives of people across 150+ countries!
Responsibilities
• Own architecture, design, development, and implementation of different
modules/features of the front-end applications at ONE
• Be up to date with the latest trends in React ecosystem
• Bring in industry best practices
• Take ownership to drive an initiative to completion
• Discover opportunities for performance improvements
• Recommend ways to improve reliability, efficiency and code quality
• Focus on continuous delivery and reducing complexity
• Carry out code reviews and manage pull requests within the frontend application
development team
Requirements
• Overall 4.5+ years of experience in frontend development using React, Redux.
• B.E/B.Tech in CS or equivalent streams from institute of repute (IITs, NITs, BITs,
IIITs or equivalent)
• Ability to write readable and maintainable JavaScript code
• Ability to build pixel-perfect user interfaces with smooth interactions
• Knowledge of Web technologies and concepts -HTML, CSS, REST APIs, Caching, etc.
• Experience in Vue.JS and Angular.JS is a plus.
• Experience using web build tools, such as Webpack, Babel, NPM, Yarn, etc.
• Solid understanding of how web applications work including OWASP, XSRF,
Security, Session management and best development practices.
• Experience in Cloud-based technologies such as AWS or Azure.
• Experience with handling Services, RESTful APIs and developing for high-volume
web applications. Experience in Microservice architecture and practices.
Responsibilities:
- Understand the requirement and purpose of implementation.
- Implement modules with individual products and come up with impact and own ideas and solutions.
- Troubleshooting issues across environments.
- Responsible for monitoring, highlighting and troubleshooting issues across environments.
- Responsible for design and develop the components as per the requirement.
- Technical documentation, design and development using tools and technologies like HTML5, JAVA and Angular JS etc.
- Complete the build of code on time and as per application coding standards, and perform unit testing.
Requirements:
- Strong Expertise and experience in HTML5, charting libraries, JavaScript, jQuery, Angular(2+) or ReactJS
- Strong hands-on experience in Web services (REST)
- Proficient knowledge in D3.JS
- Good understanding of user interactions
- At least involved in one live project on D3.JS
- Handson on Visualisations
- Knowledge in Nodejs
- Knowledge in React JS / Angular 2+
- Good understanding of cloud computing platforms and its services
- Experience in UI, UX, data visualisations, usability, design aspects and user stories








