
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.

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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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
Key Responsibilities
• Build and maintain high-quality, responsive web applications
• Collaborate with designers and product managers to translate requirements into intuitive UI/UX
• Optimize applications for performance, security, SEO, and scalability
• Write clean, maintainable, and well-documented code
• Debug, troubleshoot, and fix issues across the frontend stack
• Stay updated with the latest frontend trends and tools to improve development practices
Requirements
• 2–4 years of professional experience as a Frontend Developer
• Strong proficiency in JavaScript/TypeScript with modern frameworks like React.js/Next.js
• Experience consuming REST/GraphQL APIs
• Strong understanding of HTML5, CSS3, Tailwind/Styled Components and responsive design principles
• Knowledge of version control (Git)
• Familiarity with build tools and CI/CD pipelines
• Understanding of web performance,accessibility and SEO best practices
• Strong problem-solving and debugging skills
What is in it for you
• Very high ownership role in a fast-paced environment
• Closely work with the founder & a super passionate team of people in building Eternz
• Competitive salary commensurate
• Fast career growth & appraisals
• A dynamic and collaborative work environment- No hierarchy/Politics!
• Health insurance
Additional Details
• We are an early-stage start-up and valuable achievements take time & efforts. And hence it is a 6 day work week & we strongly believe there is no substitute for hard work & passion!
• Location: HSR layout, Bangalore
Job Description:
We are seeking a skilled Shopify App Developer with experience in React/Remix and a strong foundation in HTML, CSS, JavaScript, and jQuery. The ideal candidate will be responsible for building and maintaining custom Shopify applications, enhancing user interfaces, and ensuring seamless e-commerce experiences for our clients. This role requires a strong understanding of Shopify’s ecosystem, combined with frontend development skills to deliver high-quality, scalable solutions.
Key Responsibilities:
- React Develop, test, and maintain custom Shopify apps to enhance store functionality.
- Collaborate with the design and product teams to implement responsive and user-friendly UI/UX features.
- Utilize React and Remix frameworks to build dynamic, interactive web applications.
- Write clean, modular, and scalable code using HTML, CSS, JavaScript, and jQuery.
- Integrate third-party APIs and manage data securely within Shopify.
- Optimize applications for speed and scalability across various devices and browsers.
- Stay updated on Shopify platform updates, best practices, and industry trends.
- Develop, test, and maintain custom Shopify apps to enhance store functionality.
- Collaborate with the design and product teams to implement responsive and user-friendly UI/UX features.
- Utilize React and Remix frameworks to build dynamic, interactive web applications.
- Write clean, modular, and scalable code using HTML, CSS, JavaScript, and jQuery.
- Integrate third-party APIs and manage data securely within Shopify.
- Optimize applications for speed and scalability across various devices and browsers.
- Stay updated on Shopify platform updates, best practices, and industry trends.
● Developing new user-facing features using React.js
● Building reusable components and front-end libraries for future use
● Translating designs and wireframes into high quality code
● Optimizing components for maximum performance across a vast array of web-capable devices and browsers
● Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model
● Thorough understanding of React.js and its core principles
● Experience with popular React.js workflows (such as Flux or Redux)
● Familiarity with newer specifications of EcmaScript as well as HTML and CSS
● Experience with data structure libraries (e.g., Immutable.js)
● Working knowledge and integration knowledge with RESTful APIs
● Knowlegde of websockets implementation is a must.
● Knowledge of modern authorization mechanisms, such as JSON Web Token
● Familiarity with modern front-end build pipelines and tools
● Experience with common front-end development tools such as Babel, Webpack, NPM, etc.
● Ability to understand business requirements and translate them into technical requirements.
● A knack for benchmarking and optimization
● Familiarity with code versioning tools {such as Git}
● Added advantages if you have working knowledge of AWS
Developing new user-facing features using Vue.js, Reactjs or Angularjs
Building reusable components and front-end libraries for future use
Optimizing components for maximum performance across a vast array of web-capable devices and browsers
Proficiency in JavaScript, including DOM manipulation and the JavaScript object model
Translating designs and wireframes into high-quality code
Experience with Bootstrap, Materialize, Node, Typescript, HTML,CSS
Desired Candidate Profile
Experience with popular Vue.js workflows
Thorough understanding of Vue.js and its core principles
Hands-on experience with CSS
Knows common front-end development tools such as Babel, Webpack, NPM, etc
Ability to understand business requirements and translate them into technical requirements
Familiarity with code versioning tools Git, JIRA
A knack for benchmarking and optimization
Familiarity with newer specifications of EcmaScript 6
Proven expertise in product development
Designing and implementing high-performance web applications
Creating detailed wire-frames, prototypes, complex web and mobile application
● Take part in applications GUI development (including its UI and 3D elements).
● Champion the latest UI technologies using React, SCSS, CSS, JavaScript.
● Be responsible for working with business owners to propose high-quality user
experience solutions for web applications.
● Collaborate with Business Analysis and UI/UX teams to help them to implement use
case scenarios and provide the best customer experience.
● Be responsible for design and implementation of UI components in React.
● Develop web-based user interfaces, applications, and Web Service integration APIs
using REST API.
● Work as a team with backend developers and other front-end developers to provide
full end-to-end solutions.
● Interact with the SQA team to ensure high quality of the software delivered.
● Be responsible for working with the configuration management and administration
teams to provide accurate build and deployment instructions.
● Ensure application development principles, standards, and best practices are followed
for each project.
Skills & Experience:
● Understanding of key design principles.
● Proficiency in HTML, CSS, JavaScript, and jQuery.
● DS & Algo
● Understanding of server-side CSS.
● Experience with responsive and adaptive design.
● Good problem-solving skills.
● Determining the structure and design of web pages.
● Ensuring user experience determines design choices.
● Developing features to enhance the user experience.
● Ensuring web design is optimized for smartphones.
● Building reusable code for future use.
● Optimizing web pages for maximum speed and scalability.
● Utilizing a variety of markup languages to write web pages.
● Maintaining brand consistency throughout the design.
Full-Stack Developer
Job Description
Participating in the design and creation of scalable software
Writing clean, functional code on the front- and back-end
Testing and fixing bugs or other coding issues
Job Description: -
We are looking for a Full Stack Developer to produce scalable software solutions. You’ll be part of a cross-functional team that’s responsible for the full software development life cycle, from conception to deployment.
As a Full Stack Developer, you should be comfortable around both front-end and back-end coding languages, development frameworks, and third-party libraries. You should also be a team player with a knack for visual design and utility.
If you’re also familiar with Agile methodologies, we’d like to meet you.
Responsibilities
Work with development teams and product managers to ideate software solutions
Design client-side and server-side architecture
Build the front-end of applications through appealing visual design
Develop and manage well-functioning databases and applications
Write effective APIs
Test software to ensure responsiveness and efficiency
Troubleshoot, debug and upgrade software
Create security and data protection settings
Build features and applications with a mobile responsive design
Write technical documentation
Work with data scientists and analysts to improve software
Requirements
Proven experience as a Full Stack Developer or similar role
Experience developing desktop and mobile applications
Familiarity with common stacks
Knowledge of multiple front-end languages and libraries (e.g. HTML/ CSS, JavaScript, XML, jQuery)
Knowledge of multiple back-end languages (e.g. C#, Java, Python) and JavaScript frameworks (e.g. Angular, React, Node.js)
Familiarity with databases (e.g. MySQL, MongoDB), web servers (e.g. Apache) and UI/UX design
Excellent communication and teamwork skills
Great attention to detail
Organizational skills
An analytical mind
Degree in Computer Science, Statistics or relevant field
* Research, guide, and execute frontend architecture changes
* Ensuring high performance of web app
* Writing tested, idiomatic, and documented JavaScript, HTML and CSS
* Cooperating with the back-end developer in the process of building the RESTful API
Skills and Qualifications:
* Proficiency with reactive Programming in JavaScript
* Deep knowledge of Angular2.0+/React practices and commonly used modules based on extensive work experience
* Creating self-contained, reusable, and testable modules and components
* Ensuring a clear dependency chain, in regard to the app logic as well as the file system
* Extensive knowledge of HTML & CSS
* Validating user actions on the client side and providing responsive feedback
* Writing non-blocking code, and resorting to advanced techniques such as multi-threading, when needed
* Creating custom, general use modules and components which extend the elements and modules of core Angular2.0+/React
* Experience with all levels of operation available to the front-end
We are seeking Junior UI/UX Developers to join delivery team at Kochi. In this role, you will be responsible to translate UI / UX design wireframes to actual code that will produce visual elements of the application. Your job is to bridge the gap between graphical design and technical implementation, taking an active role on both sides and defining how the application looks as well as how it works. If you are a technology expert, with a desire to provide potential customers with the best customer experience, this is the right challenge for you.
Responsibilities and Duties
- Develop new user-facing features.
- Optimize applications for maximum speed and scalability.
- Collaborate with back-end developers and web designers to improve usability.
- Continually evaluate emerging frameworks and technologies to identify opportunities, trends and best practices that strengthen the development team.
Qualifications and Skills
Following are the attributes we are looking in the candidate:
- Responsive design development using HTML, CSS and Bootstrap.
- Basic Ajax knowledge.
- Basic to intermediate JavaScript knowledge.
- AngularJs or (2+) is an added advantage.
- Good analytical, problem solving and debugging skills.
- Responsive design.
- Proper understanding of Web service.
We're looking for developers who are interested in solving problems. We like people who are willing to work across the technology spectrum.
An example of a typical problem would be a product feature that requires UI/UX (Typescript/React/HTML/SCSS), server changes (Java/Scala/R), and database changes (MySQL).
You will own some or all of a product/feature. You will also mentor others, read and review code, maintain code, deploy code, tune the performance of systems, as required.
Requirements :
- We're looking for 4 years or more of relevant work experience. That being said, if you think you have the necessary skills to make the number irrelevant then do talk to us
- Proficiency in Java, JavaScript, and sufficient knowledge of database concepts to write efficient queries
- Working experience in one or more of React, Redux, Typescript, and associated tools such as Webpack, Grunt, Gulp etc.
- Working experience in HTML, (S)CSS
- Working experience writing unit/functional/integration tests
- Knowledge of Java 8 features such as streams and lambdas is a plus
- Knowledge of REST concepts and design is a plus
- Knowledge of ES6 features/syntax is a plus
- Knowledge of functional programming concepts is a plus
- Knowledge of build/deploy tools such as Ant, Maven, Gradle, Ansible, Chef, Puppet etc. is a plus
- Knowledge of one or more scripting languages such as Awk, Bash, Perl, Python, Rubyetc. is a plus
- Ability to use modern IDEs such as VSCode, IntelliJ IDEA, Eclipse etc. is a plus
- Knowledge of container technologies such as Docker, Kubernetes, etc. is a plus
Bonus Points :
- For product experience. We're a product company. Talk to us if you have worked on software products
- For startup experience. Have you worked in a any startups? We're always looking for people who have startup experience
- If you've developed and deployed any software for your own, or others- use
- If you've contributed to open source projects
- If you've spoken at developer conferences, published articles in tech websites, published podcasts
- If you communicate well. Do you blog? Can you explain ideas clearly and succinctly? Can you answer questions in short, clear sentences?
- If you have technical certifications such as AWS, Docker, Redhat etc.
- If you're self taught. Have you learned other programming languages, technologies etc. on your own? Share the details of the courses you took online, for instance.
- For deep knowledge in one or more areas. We like people who dig down, understand concepts in detail
- If your code/work is out there in public. We'd love to see what you've developed and deployed to the external world









