Technologies: React JS
Experience: 3 to 8 years
Notice Period: Immediate joiner
Job Location: Kalyani Nager, Pune, MH
Job Summary
Looking for React JS developers who will be responsible for architecting and building applications, as
well as coordinating with the teams responsible for other layers of the product infrastructure.
Responsibilities and Duties:-
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Responsible for development of new highly-responsive, web-based user interface
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Build pixel-perfect, buttery smooth UIs across both mobile platforms.
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Diagnose and fix bugs and performance bottlenecks for performance that feels native.
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Reach out to the open source community to encourage and help implement mission-critical
software fixes—React Native moves fast and often breaks things.
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Maintain code and write automated tests to ensure the product is of the highest quality.
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Transition existing React web apps to React Native.
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Construct visualizations that are able to depict vast amounts of data
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Work and collaborate with the rest of the engineering team
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Work with product team and graphic designers
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Develop a flexible and well-structured front-end architecture, along with the APIs to support it
Required Experience, Skills and Qualifications:-
● Experience with automated testing suites, like (Jest or Mocha)
● Experience with JavaScript, REACT, HTML / CSS, REST API's
● Experience with Git knowledge is a plus
● Hands on Redux
●Familiarity with native build tools, like XCode, Gradle (Android Studio, IntelliJ)
●Understanding of REST APIs, the document request model, and offline storage

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The Opportunity At Certa, we are building the AI-native Operating System for global enterprise relationships. We have the clients (Fortune 100/500) and the robust backend technology. Now, under the guidance of our new Head of Design, we are elevating our experience to match the best consumer products in the world. We are looking for our First Design Engineer. You are the "missing link" between our pragmatic engineering requirements and our ambitious design vision. You won't just implement tickets; you will define how our product feels.
The Role This is not a standard Frontend Engineer role, nor is it a Product Designer role. This role is equal parts: Craft-focused Frontend Engineering: You write production-grade code, but you obsess over the details that others miss. Systems Thinking: You don't just build components; you build the architecture (Design System) that allows the rest of the team to build beautiful UI faster. Figma-to-Code Mastery: You bridge the gap between static Figma files and dynamic browser realities, moving fluidly between design and implementation.
What You Will Do
- Architect the Design System & UI Patterns Take ownership of our internal design system. You will treat it as an internal product, creating a type-safe, accessible, and composable library in React & TypeScript. Manage the tokens, components, patterns, documentation, and governance required to scale design across a remote engineering team. Bridge the gap between Figma Variables/Tokens and code, ensuring a single source of truth for our visual language.
- Make AI-Native UX Feel Trustworthy & Human Implement interaction patterns specifically for AI workflows: streaming states, progressive disclosure, and optimistic UI. Build for "explainability" and human-in-the-loop controls, ensuring users trust the system even when it automates complex tasks. Make complexity feel simple—especially when the system is performing sophisticated "smart" operations in the background.
- Maximize Output with AI-Assisted Tooling Hyper-automate the mundane: Use AI coding assistants (Cursor, Copilot, etc.) to handle boilerplate and scaffolding, allowing you to spend 80% of your time on the 20% of the "feel" and "craft." Build tooling and guardrails (linting rules, visual checks, component playground workflows) that help the team ship high-fidelity UI consistently.
- Bridge Design & Code (Figma-First) Live in Figma: You are expected to be as comfortable in Figma as you are in VS Code. You’ll tweak layouts, design missing states, and refine prototypes yourself. Push performance beyond just metrics: focus on rendering, bundle size, perceived speed, and interaction responsiveness. Raise the bar on accessibility and cross-browser behavior, ensuring the product is usable by everyone.
Must Haves
- Expert Figma Skills: This is a primary requirement. You should be fluent in auto-layout, components, variables, and prototyping. You view Figma as a design environment and a technical spec.
- AI-Assisted Workflow: You are a "power user" of AI tools (Cursor, Copilot, v0, etc.). You know how to leverage AI to move faster without sacrificing the quality of the final output.
- Strong Frontend Foundation: Deep expertise in React + TypeScript with a track record of shipping complex, data-heavy UIs in production.
- Demonstrated UI Craft: A portfolio showing obsession with spacing, typography, interaction detail, and motion. You likely have a "Folder of Inspiration" from the best apps in the world.
- Design System Experience: Strong experience building and maintaining a design system: tokens, components, patterns, and documentation.
- Accessibility Expertise: You build keyboard-first UX, understand screen reader behavior, and enforce correct ARIA usage by default.
- Modern Tooling: Experience with Vite and modern frontend tooling; comfortable setting up and customizing JS tooling/build systems.
Why You? (The "Craft" Factor)
- You are inspired by the design-engineering cultures of companies like Linear, Vercel, Family, or Arc (The Browser Company).
- You get annoyed when a modal closes without an exit animation.
- You understand that latency is a UX problem, and you use optimistic UI updates to make the app feel instant.
- You believe enterprise software doesn't have to look like a spreadsheet from 2005—it should feel as fluid as the best consumer apps.
- You are an "AI-augmented" engineer who uses modern tools to do the work of three people while maintaining the taste of an artisan.
- 1 - 5 years of experience as React JS developer
- Strong proficiency in JavaScript, Typescript React, Redux, HTML5 and CSS.
- Familiarity with RESTful APIs and WebSocket communication
- Experience with responsive design and development.
- Strong hold of front-end functionalities including browser testing and debugging.
- Experience working in Agile development methodology is a plus
- Excellent communication skills and an ability to work effectively in cross-functional and collaborative teams
Work Location : Bangalore
Work mode : Work from office
The ideal candidate will have experience in creating mockups to present to teams,
collecting feedback and creating a quality piece of work. This individual should be
comfortable with building sitemaps, wireframes and prototypes to provide project
manners and inevitably execute based on outlined criteria. This candidate should
have strong creative and design skills and be familiar with various design
technologies.
Responsibilities
· 1. Develop new user-facing features
· 2.Build reusable code and libraries for future use
· 3.Ensure the technical feasibility of UI/UX designs
· 4. Optimize application for maximum speed and scalability
· 5.Assure that all user input is validated before submitting to back-end Skills
And
Qualifications
Proficient understanding of web markup, including HTML5, CSS3 Basic
understanding of server-side CSS pre-processing platforms,
Proficient understanding of client-side scripting and JavaScript frameworks,
including jQuery
Should know advanced JavaScript libraries and frameworks,
such as AngularJS, ReactJS
Bachelor's degree in user experience, design or related field-(Btech/ BCA)
· Note: Every front-end developer is expected to have proficient knowledge of
JavaScript, while most front-end developers should know jQuery.
Strong communication, design and creative thinking skills Experience with
Adobe Pro, Photoshop and programming languages HTML, CSS and
JavaScript lea, UI developing.
Experience: 2 to 4 years
Preferred Candidate: Immediate Joiner
Location: Kolkata only Onsite
Compensation
As per the industry standard
Yearly salary range: ₹4L - ₹8L + Profit share bonus (see below)
All employees will receive a proportional yearly profit share based on their salary. In total, 10% of WhyDonate’s profits will be paid out to employees.
Job Description
We are looking for a full-time remote MEAN-stack Developer with 3+ years of experience.
You will be working on new features and maintenance of the WhyDonate platform. Code quality and scalability are a must. Besides writing new code, you will be fixing bugs and monitoring any new errors that come in. You will be working in a fully remote team of 10+ people.
WhyDonate is a product-based company that has been live since 2013. WhyDonate is a fundraising platform that helps charities and individuals to collect donations online.
Hiring Process
- Introduction interview
- Technical interview
- Test assessment
Must-haves
- 4+ years of Software development experience
- 3+ years of experience with Angular 2+ (or similar framework)
- Experience with REST API's
- Good English language and communication skills
Nice to have
- Experience with back-end development (Node.js)
- Experience with DevOps and Cloud Hosting (Cloudflare, CI/CD)
- Experience with mobile development (React-Native)
- Worked on multiple publicly released web applications
- Knowledge of Elasticsearch
- Knowledge of Redis
- Knowledge of JavaScript testing frameworks
Responsibilities
- Feature development
- Monitoring and fixing bugs
- Uptime, performance and security
- Architecture
- Code quality
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Purpose of Job |
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Job Role |
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Who you are
You will be responsible for: · Building complex, enterprise-transforming applications on diverse platforms and technologies. · Writing and implementing efficient code · Working closely with other developers, QA Teams, UX designers, Business Analysts and Product Owner · Working in different domains and client environments · Documenting standard operating procedures You will get to: · Build custom software using cutting edge technologies and tools · Work with amazing and talented people to make innovative solutions a reality · Work in a dynamic environment where your talent is valued over your job title or years of experience · Travel overseas and work with diverse teams. · Build your own career path |
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Skills/Experience/Qualifications |
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Essential: · Excellent software programming skills with a strong focus on code quality · Excellent problem-solving skills · Excellent creativity skills to help invent new ways for approaching problems and suggest innovative solutions · Strong knowledge of JavaScript, TypeScript and React · Good UI design using HTML and a modern CSS framework such as Bootstrap, Foundation or Semantic UI. · Hands-on experience in analysis, design, coding, and implementation of complex, custom-built applications · Experience with working with AWS specially Lambda, API Gateway, CloudFormation
Desirable: · Knowledge of Amazon Connect · Knowledge of Python, Node.js, Spring Boot · Knowledge of Relational databases such as MySQL, PostgreSQL, SQL Server or Oracle. · Knowledge of software standard methodologies, like Test Driven Development (TDD) and Continuous Integration (CI) · Experience working with, or an interest in Agile Methodologies such as Scrum
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- Knowing and working on what specific framework problems need to be solved, what new problems they give rise to, and the architectures that work at scale.
- Coordinating with the design and back-end teams
- Taking risks, and learning quickly from your mistakes.
- Brainstorming between various approaches, doing small experiments to test the hypotheses
- Aligning the team to follow a particular approach, being thorough in your research.
- Collaborating well with others, knowing that better solutions come from working together.
What you need to have:
- Bachelor's degree in Computer Science (or related field)
- A passion for system design problems, exposure to various tech frameworks
- Experience with React Js, React Native, JavaScript including DOM Manipulation, and JavaScript object model.
- Should have a crystal understanding of App architecture and how React Native interacts with the native layers for iOS and Android respectively
- Familiarity in using Hooks for functional components with state, PureComponents.
- Hands-on experience in using State Management Libraries (Mainly Redux).
- Understanding React Native internals, memory profiling, and performance improvements of the application.
- Experience with building projects in Gradle (Android Studio) or xCode with iOS.
- Create Energy - Insatiably curious.
- Experience in Agile/ SCRUM methodology and modern tools like Jira, Slack, GitHub, etc
Required Skills
As a developer, you have a passion for development and a thirst to learn. You enjoy working in a fast-paced and dynamic environment. You are a quick learner who can step up and take ownership of work to get things done on time. You also enjoy and appreciate working and collaborating with others from various backgrounds as part of a team.
Job Requirement
- Full-stack developer with exposure working in building products from scratch
- Have 2+ years in implementing front-end of applications using ReactJS
- Proficient in HTML 5, CSS 3, Bootstrap Ant-D, Redux, JavaScript and writing cross-browser compatible code
- Good knowledge of MVC, MVVM, OOPS concepts, Web Development Concept.
- Experience with RESTful services
- Work experience any one of the backend technologies such as Java, NodeJS, .NET will be a major plus
- Experience in JavaScript build tools such as web-pack /gulp
- Familiar with testing frameworks (such as Jasmine) and Test runner framework (such as Karma) (good to have)
- Thorough understanding of the responsibilities of the platform, database, API, caching layer, proxies, and other web services used in the system
- Knows unit testing
- Critical thinker and problem-solving skills
- Good time-management skills
- Great interpersonal and communication skills
Duty /Responsibility
- Your specific duties in this role will include:
- Responsible for the front end/UI development for of the web-based and mobile-based application
- Responsible for communicating with clients
- Responsible for communicating with Designing Team and Team Manager
- Responsible for Requirement Analysis
- Responsible for mentoring junior front-end developers
- Responsible for researching new web technologies
- Responsible for developing POCs
- Respond to technical queries/requests from team members and customers.
- Coach, guide, and mentor junior members in the team.
Levelup11 is a Fantasy Gaming Startup, which aims to entertain the people not with Cricket, Football, Kabaddi but Horse Racing . Levelup11's vision is to make accessible the elite game of Horse Racing to masses of tier 2 and tier 3 users
We are growing and looking to expand our team in backend, frontend , UI/UX.
We are looking for dynamic folks for our Frontend development, who are passionate to work in Game Tech Startup
Frontend Developer:
- Meeting with the development team to discuss user interface ideas and applications.
- Reviewing application requirements and interface designs.
- Identifying web-based user interactions.
- Developing and implementing highly-responsive user interface components using React concepts.
- Writing application interface codes using JavaScript following React.js workflows.
- Troubleshooting interface software and debugging application codes.
- Developing and implementing front-end architecture to support user interface concepts.
- Monitoring and improving front-end performance.
- Documenting application changes and developing updates.
Required Skills/Experience
If a misaligned shadow bothers you, we already like you 😆
- Master's / Bachelor’s degree in Computer Science, Software Engineering, or Self taught developer.
- 3+ years of experience in fundamentals of web, HTML, CSS and JavaScript.
- Familiarity with JavaScript frameworks such as Vue or React.
- Understanding of product design, user experience and skills to recreate and match high quality pixel perfect designs and can go above and beyond in detailing.
- Has ability to build a ground up resoluble components and in-house UI system that can scale across the product.
Responsibilities
A collaborative role with Individual ownership ✅
- Ownership of developing UI related features. Work with with the rest of the engineering team to develop, launch or maintain features.
- Take ownership of design <> dev collaboration and participate in the education of both sides.
- Work closely with design team and become a bridge between engineering and design.
- Maintain code integrity.









