
Certa (getcerta.com) is a Silicon Valley-based tech product start-up that is automating the vendor, supplier, and other stakeholder onboarding processes (think background checks, agreements, and the works) for companies across industries and geographies. With multiple Fortune 500 and Fortune 1000 clients, at Certa's tech team, you will be working on stuff that is changing the way huge companies do business.
Must Haves:
- Experience developing enterprise-grade quality software.
- 3+ years of experience building large-scale front-end applications using React.
- 3+ years of experience using type-safe JavaScript-based languages, such as TypeScript.
- Understanding of modern frontend ecosystems, including Bundling(preferably using vite) Linting, Testing, Releasing.
- Success with mentoring mid-level & junior Engineers.
- Experience in Agile software development methodologies.
- Experience writing automated tests (e.g., Vitetest, Cypress, Jest, Testing Library).
- Experience in building, scaling & maintaining a design system from scratch.
- Experience in improving rendering as well as delivery performance for front-end applications.
- Experience in writing semantic HTML.
- Experience in building scalable, responsive, and cross-browser-compatible web applications.
- Experience in a peak-performance organization, preferably a tech startup.
- Experience working with a remote team.
- Data analysis experience, and understanding of how analytics can help with product decisions.
Bonus:
- Experience building integrations and data synchronizations with event pub/sub-models.
- Experience with WebGL
- Experience in building offline applications using Web Workers
- Open source contributions.
- Running his/her own blog.
- Experience with building 100% keyboard and screen reader-accessible applications.
- Experience setting up and customizing JavaScript tooling and building systems.

About Certa
About
Certa’s no-code platform makes it easy to digitize and manage the lifecycle of all your suppliers, partners, and customers. With automated onboarding, contract lifecycle management, and ESG management, Certa eliminates the procurement bottleneck and allows companies to onboard third-parties 3x faster.
Tech stack
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Required Skills & Qualifications
- 3+ years of experience developing production-level web applications.
- Strong command over React.js or Vue.js, JavaScript, HTML5, CSS3.
- Deep understanding of DOM APIs, native JavaScript, and popular libraries.
- Proficiency in CSS preprocessors (SASS/LESS) and modular CSS (CSS Modules).
- Familiarity with build tools like Webpack, Gulp, or Grunt.
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- Strong understanding of cross-browser compatibility and performance optimizations.
- Clean, organized, and maintainable code practices.
- Bonus: Working knowledge of Node.js and backend concepts like APIs, databases, caching layers, and proxies.
- Comfort in implementing pixel-perfect designs, animations, and smooth transitions.
- Excellent communication and teamwork skills.
- A proactive mindset with the ability to work both independently and in a team.
- Strong proficiency in React Native and JavaScript (ES6+).
- Experience with Redux, Context API, or other state management tools.
- Familiarity with TypeScript and strong understanding of mobile app architecture.
- Knowledge of native build tools like Xcode and Android Studio.
- Experience with RESTful APIs and third-party libraries.
- Familiarity with GraphQL is a plus.
- Hands-on experience in implementing pixel-perfect designs and animations.
- Proficiency in using libraries like React Navigation, NativeBase, or Material-UI.
- Experience with testing libraries like Jest, Detox, or Appium.
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Job Description
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Responsibilities
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Skills / Required Experience
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- 2+ years of hands-on experience with Redux
- Bonus: past experience with Socket.io and WebRTC
- Writing and consuming REST APIs with Node.js
- A knack for benchmarking and optimization
- Familiarity with modern front-end build pipelines and tools
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CercleX is a digital technology platform which is a leading https://cerclex.com/blog/waste-management-in-tamil-nadu/">waste management company in Tamilnadu with an extended outlook of circularity through its various ventures into the field of sustainability.
We have received FICCI Impactful Cleantech Startup Award, MeitY Emerging Startup Award, TVS Capital Budding Nxt Gen Entrepreneur Award, and many more for our digital solutions enabling transactions between waste generators, and aggregators, processors, and bringing in complete transparency, traceability to the waste ecosystem.
https://play.google.com/store/apps/details?id=com.scrapmarketCCX">Cercle X ScrapMarket is an app that helps you buy and sell scrap by connecting 100% verified buyers and sellers of scrap across India.CercleX helps brands to accomplish their sustainability targets with https://cerclex.com/extended-producer-responsibility/">Extended Producer responsibility and research solid waste managemet on the environment to ensure the environment is eco free.
Job Description:
Front end developers are required to work in teams alongside back end developers, graphic designers, and user experience designers to ensure all elements of web creation are consistent. This requires excellent communication and interpersonal skills.
Responsibilities:
-
Experience in developing apps using Reactjs with Redux, React hooks, react-router with Javascript ES6
-
Developing new user-facing features using React.js
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Integrate APIs with frontend components using React.js
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Ensuring user experience determines design choices.
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Developing features to enhance the user experience.
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Striking a balance between functional and aesthetic design.
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Ensuring web design is optimized for smartphones.
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Building reusable code for future use.
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Optimizing web pages for maximum speed and scalability.
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Utilizing a variety of markup languages to write web pages.
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Maintaining brand consistency throughout the design.
Front End Developer Requirements:
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Degree in computer science or related field.
-
Understanding of key design principles.
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Proficiency in React.js,HTML, CSS, JavaScript, and jQuery.
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Understanding of server-side CSS.
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Experience with graphic design applications such as Adobe Illustrator.
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Experience with responsive and adaptive design.
We are looking for a React Native developer interested in building performant mobile apps on both the iOS and Android platforms. You will be responsible for architecting and building these applications, as well as coordinating with the teams responsible for other layers of the product infrastructure. Building a product is a highly collaborative effort, and as such, a strong team player with a commitment to perfection is required.
Responsibilities
Build pixel-perfect, buttery smooth UIs across both mobile platforms.
Leverage native APIs for deep integrations with both platforms.
Diagnose and fix bugs and performance bottlenecks for performance that feels native.
Reach out to the open-source community to encourage and help implement mission-critical software fixes—React Native moves fast and often breaks things.
Maintain code and write automated tests to ensure the product is of the highest quality.
Transition existing React web apps to React Native.
Skills
Firm grasp of the JavaScript, TypeScript, ClojureScript language and its nuances, including ES6+ syntax Knowledge of functional or object-oriented programming
Ability to write well-documented, clean Javascript code
Rock-solid at working with third-party dependencies and debugging dependency conflicts
Familiarity with native build tools, like XCode, Gradle Android Studio, IntelliJ
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Experience with automated testing suites, like Jest or Mocha
Roles , Responsibilities& Skills :-
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- Work with Agile methodology
- Go getter attitude with delivery mindset.
- Strong communication skills across the board, with a passion for finding and sharing best practices and driving greater discipline.
- Team player
- Ability to multi-task and work in fast paced environment
- Quality focus.
UI experience
- Angular Version 7+ or React experience
- Knowledge of CSS/design frameworks
- Ability to coordinate and implement UX designs.
1. Creating the web app using React.js majorly. It includes login, database connectivity with MongoDB, search functionality, session management etc.
2. Thorough knowledge of React.js and frontend web dev.
3. Ability to work very fast and be independent.
- Responsible for development of new highly-responsive, web-based user interface
- Construct visualizations that are able to depict vast amounts of data
- Work and collaborate with the rest of the engineering team
- Work with product team and graphic designers
- Learn and understand user interactions
- Develop a flexible and well-structured front-end architecture, along with the APIs to support it
The ideal candidate is a highly resourceful and innovative developer with extensive experience in the
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Responsibilities
- Perform a mix of maintenance, enhancements, and new development as required.
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- Take ownership of the project you will be working on
Qualifications
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plus.
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