Frontend / UI Developer

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

1. 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.
2. 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.
3. 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.
4. 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

1. 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.
2. 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.
3. Strong Frontend Foundation: Deep expertise in React + TypeScript with a track record of shipping complex, data-heavy UIs in production.
4. 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.
5. Design System Experience: Strong experience building and maintaining a design system: tokens, components, patterns, and documentation.
6. Accessibility Expertise: You build keyboard-first UX, understand screen reader behavior, and enforce correct ARIA usage by default.
7. Modern Tooling: Experience with Vite and modern frontend tooling; comfortable setting up and customizing JS tooling/build systems.

Why You? (The "Craft" Factor)

1. You are inspired by the design-engineering cultures of companies like Linear, Vercel, Family, or Arc (The Browser Company).
2. You get annoyed when a modal closes without an exit animation.
3. You understand that latency is a UX problem, and you use optimistic UI updates to make the app feel instant.
4. You believe enterprise software doesn't have to look like a spreadsheet from 2005—it should feel as fluid as the best consumer apps.
5. You are an "AI-augmented" engineer who uses modern tools to do the work of three people while maintaining the taste of an artisan.

We are looking for a React JS Developer responsible for developing and maintaining rich user interfaces for modern internet-based web applications. Your primary focus will be to implement a complete user interface for a web application, with a focus on performance. Your main duties will include creating modules and components and coupling them together into a functional application following the design patterns and best practices. You will work in a team with the back-end developers and communicate with the API using standard methods. A thorough understanding of all of the components of the platform and infrastructure is required.

Experience Required : 3 + Years

• Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model

• Experience with popular React.js workflows (such as Flux or Redux)

• Experience with data structure libraries (e.g., Immutable.js)

• Familiarity with RESTful APIs

• 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.

• A knack for benchmarking and optimization

• Familiarity with code versioning tools (such as Git )

• Solid expertise in using cloud platforms (AWS, Google Cloud, and others)

Responsibilities

• 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

Skills:

• Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model
• Experience in GraphQL
• Thorough understanding of React.js and its core principles
• Experience with popular React.js workflows (Redux)
• Familiarity with newer specifications of ECMAScript
• Experience with data structure libraries (e.g., Immutable.js)
• Knowledge of isomorphic React is a plus
• Familiarity with RESTful APIs
• Knowledge of modern authorization mechanisms, such as JSON Web Token
• Familiarity with modern front-end build pipelines and tools
• 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, SVN, and Mercurial)

Role: UI Developer (ReactJs Developer)

Experience: 1.5 - 2.5 Years
Qualification: BE (IT/ Computer), B.Tech., M.Tech., MCA.

Primary Skills (Must Have):

·      1.5 - 2.5 years of experience in web UI development 

·      Hands-on experience in developing responsive design using ReactJs,HTML 5 + CSS3, jQuery

·      Bootstrap 3 and other JavaScript Frameworks 

·      Worked on SCSS and LESS 

·      Worked on UI integration, collaborate with the design team to define the UI architecture, using Web design best practices 

·      Knowledge of Material design framework Good communication and interpersonal skills 

Additional skills/good to have:

·      Hands-on experience in developing a web-based solution using the latest technologies covering React.Js Angular, Angularjs, jQuery, JavaScript, HTML5 technology (CSS3, Compass, etc.), object-oriented javascript and MVC js frameworks like Extjs/angular/backbone

·      Bootstrap 4 WCAG standards (AAA) W3C validator BEM standards Table structure (Mailer) 

·      Ability to work independently, good communication skills have experience in working on complex and medium to large projects.

·      Good understanding of SDLC and flair to follow the processes. 

·      An understanding of the fundamentals in object-oriented development, UML and Design Patterns

·      Experience building complex web apps that have been successfully delivered to customers 

·      Exceptional analytical abilities, creativity, and attention to detail 

·      Good team player who is a self-starter and well organized

·      Good expertise, good in technical analysis/debugging problems/issues, 

·      Experience in designing and architecting medium to complex systems, well versed with design standards &   framework

·      Experience in working on multiple technologies and complex projects 

·      Knowledge in Design Patterns. 

·      Mobile development experience would be an added advantage.

·      Functional and Technical Specs documentation

Desired Skills: React.js, JavaScript, Redux, RESTful APIs, TypeScript

Job Summary:

• 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
• Experience with data structure libraries (e.g., Immutable.js)
• Knowledge of isomorphic React is a plus
• Familiarity with RESTful APIs
• Knowledge of modern authorization mechanisms, such as JWT 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, SVN, and Mercurial)
• Familiarity with any ReactJS testing framework is plus

About NetElixir: 

NetElixir is a global digital marketing firm headquartered in Princeton, NJ. With a common goal of helping our customers and challenging ourselves to think differently, we face challenges and tackle them together as a team. We are a close-knit group of imaginative and friendly industry experts who bring our unique passions and personalities together to find creative solutions that drive results.

With offices in the US and India, NetElixir works persistently gathering, evaluating, computing, and formulating raw data and turning it into actionable insights for our customers. We work consistently to develop new technology that will improve and facilitate digital marketing efforts across the globe.

Role: React JS

Experience: 2 -5 Years

Company Website: http://www.netelixir.com/">www.netelixir.com 

Job Description:

To be part of Netelixir's Engineering Development Team in Digital Marketing, Consumer Insights, Analytics and Ecommerce Domains which caters to about 100 Ecommerce clients in USA & European Geographies

• Should have implemented at least 2-3 projects using React Interface (ReactJS, React Native).
• Experience with standard libraries for routing, state managers like Redux, knowledge of ES6 and Lodash.
• Familiarity with one of the design systems such as Material UI.
• Strong hands on exposure to convert visual designs to React based web interfaces
• Integration of the React with backend services.
• Exposure to building and integration of web interface with the backend service APIs implemented on Restful, SOAP etc.
• Proficiency in one or more of Java, Tomcat, MySql, MongoDB, Python, Angular, Bootstrap, JQuery, JS Frameworks, JSP, HTML5 CSS Frameworks will be added advantage. 

The ideal candidate is a highly resourceful and innovative developer with extensive experience in the 

layout, design and coding of websites specifically in Angular. You must also possess a strong 

knowledge of web application development using Javascript / Typescript programming language. 

Responsibilities 

• Perform a mix of maintenance, enhancements, and new development as required. 
• Document features, technical specifications & infrastructure. 
• Take ownership of the project you will be working on 

Qualifications 

• 4+ years of experience in web development and software design. 
• Minimum 3 years of experience of developing web applications using Angular 
• Expertise in front-end technologies HTML, JavaScript, CSS, Bootstrap 
• Experience working with Google Tag Manager, Google Analytics, Facebook SDK is a 

plus. 

• Experience working on building PWAs is a plus. 
• Should be comfortable working in an Agile Environment. 
• Should have a good eye for detail. 
• Should be comfortable working on Ubuntu Systems / Windows Systems. 
• BS/MS degree in Computer Science, Engineering or a related subject