ReactJS 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.

Job Title: Front-End Developer – IVR & Web Technologies

Location: Chennai ( Taramani)

Experience: 1.-3 Years

Employment Type: Full-time

Job Summary:

We are looking for a highly skilled Front-End Developer with strong expertise in Angular, React.js, and JavaScript, and a good understanding of IVR systems, Perl/Bash scripting, and WebRTC. The ideal candidate should also be familiar with data visualization using D3.js and basic knowledge of web services (REST/SOAP).

Key Responsibilities:

• Develop and maintain front-end applications using Angular and React.js
• Create dynamic and interactive UIs using JavaScript, D3.js, and modern frameworks
• Work with IVR systems and integrate them into web-based dashboards
• Write and manage Perl and Bash scripts to automate tasks and system interactions
• Implement and support WebRTC features for real-time communication interfaces
• Consume and interact with REST/SOAP web services
• Collaborate with back-end developers, designers, and system engineers to deliver high-quality solutions
• Troubleshoot and debug cross-browser and cross-platform issues

Key Skills:

• ✅ Strong knowledge of Angular(16+)
• ✅ Strong expertise in JavaScript and React.js
• ✅ Experience working with IVR (Interactive Voice Response) systems
• ✅ Hands-on with Perl and Bash scripting
• ✅ Experience with WebRTC implementation in front-end apps
• ✅ Familiarity with D3.js for data visualization
• ✅ Understanding of basic web services (REST/SOAP)
• ✅ Knowledge of front-end testing frameworks is a plus

Angular Developer (2+ Years of Experience)

We are looking for an Angular Developer with 2+ years of experience who thinks beyond writing components and finishing tickets. This role is for someone who understands how frontend systems are designed, cares about maintainability, performance, UX, and scalability, and takes ownership of features end-to-end.

We value ownership, speed, clean code, and smart problem-solving. If you enjoy building things from scratch, moving fast, and creating real impact, this role is for you.

Key Responsibilities

• Develop and maintain Angular applications used in real production environments
• Build reusable, scalable, and maintainable UI components
• Design frontend architecture that can scale as the product grows
• Upgrade and migrate Angular applications to the latest versions
• Translate product and business requirements into thoughtful technical solutions
• Work with REST APIs, handle async data, and manage application state
• Handle loading, error, and empty states properly
• Optimize performance using Angular best practices
• Write clean, typed, and readable TypeScript code
• Follow and continuously improve frontend coding standards and best practices
• Review PRs, share feedback, and contribute to team learning
• Collaborate closely with backend, design, QA, and product teams
• Debug production issues using a systematic approach
• Work with designers to deliver good UX, not just “working UI”
• Think ahead — identify UX issues, technical debt, and improvement opportunities
• Use AI tools responsibly to speed up development, debugging, and learning with proper understanding

Qualifications (Must Have)

• 2+ years of hands-on experience with Angular
• Strong knowledge of JavaScript and TypeScript, including OOP concepts
• Familiarity with Angular CLI, Components, Services, Routing, Httpclient, Validators, Pipes, Forms (Reactive & Template-Driven) Familiarity with:
• Experience with RxJS Operators, Observables,  Component lifecycle and State management concepts
• Solid understanding of HTML, CSS, SCSS, and responsive design using Bootstrap or Tailwind
• Hands-on experience with REST API integration
• Exposure to real production issues and debugging
• Experience with Git and basic CI/CD pipelines

Good to Have (Big Plus)

• Experience with Standalone Components and Angular Signals
• Understanding of performance tuning and lazy loading
• Knowledge of state management libraries (NgRx or similar)
• Experience working in a startup or fast-paced environment

❌ Who Should Not Apply

Please do not apply if:

• You only focus on “closing tickets” without questioning why something is being built
• You lack strong JavaScript fundamentals (arrays, objects, async/await, promises, event loop)
• You mostly copy-paste code without understanding it
• You never think about edge cases, failures, retries, or resilience
• You depend heavily on others for architecture or technical direction
• You avoid responsibility and say things like:
• “Backend issue”
• “It was already like this”
• “QA didn’t catch it”
• You are not comfortable explaining your code, decisions, or design choices
• You expect exact step-by-step instructions for every task
• You are not interested in learning modern Angular practices

👉 This role is not for task executors.

We want problem solvers and thinkers.

How to Apply

• Website: https://saeculumsolutions.com
• Contact Time: 10:30 AM – 6:30 PM

Job description:- 

• Strong experience of Angular along with other technologies like HTML5, CSS, jQuery, AJAX with good knowledge of ECMA Scripts.
• Strong knowledge of JS Fundamentals.
• Design & development of Angular applications as per desired specifications, along with experience in frameworks/libraries like jQuery, Bootstrap, Typescript etc.
• Architecture design, development, testing and maintenance of Web Apps, Implementation based on Angular Application MVC Patterns.
• Own end to end product modules/features (from the requirement to going live)- Design & code review, troubleshoot & help team members on issues.
• Gather requirements by interacting directly with the end-users.
• Research on open source framework/technology required for developing the feature/application.

Description of Skills/abilities:

We are looking for a great JavaScript developer who is proficient with React.js. Your primary focus will be on developing user interface components and implementing those with well-known React.js workflows such as Redux. You will ensure that these components and the overall application are robust and easy to maintain. You will coordinate with the rest of the team working on different layers of the infrastructure. Therefore, a commitment to collaborative problem solving, sophisticated design, and quality product is a must.

You will be responsible for architecting and building the 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

1. Developing new user-facing features using React.js, React hooks.
2. Building reusable components and front-end libraries for future use.
3. Translating designs and wireframes into high quality code.
4. Optimizing components for maximum performance across a vast array of web-capable devices and all browsers.
5. Build pixel-perfect, buttery smooth UIs across all web browsers.
6. Diagnose, fix bugs, maintain code and write automated tests to ensure the product is of the highest quality.
7. Key understanding about Object Oriented Programming, Web Architecture, SDLC, Rest Framework.
8. Should have understanding in Hybrid App Ecosystem, Code Once - Deploy Anywhere thought process.
9. Responsible for development of new highly-responsive, web-based user interface.
10. Construct visualizations that are able to depict vast amounts of data.
11. Work with product team and graphic designers.
12. Develop a flexible and well-structured front-end architecture, along with the APIs to support it React.js developer requirements and qualifications.
13. Support the entire application lifecycle (concept, design, test, release and support). Produce fully functional web, mobile applications writing clean code.

Skills

1. Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model.
2. Thorough understanding of React.js and its core principles.
3. Having Experience with popular React.js workflows such as Redux.
4. Familiarity with newer specifications of Typescript.
5. Having Experience with data structure libraries (e.g., Immutable.js).
6. Knowledge of isomorphic React is a plus.
7. Familiarity with RESTful APIs.
8. Knowledge of modern authorization mechanisms, such as JSON Web Token.
9. Familiarity with modern front-end build pipelines and tools.
10. Experience with common front-end development tools such as Babel, Webpack, NPM, etc.
11. Familiarity with code versioning tools such as Git, SVN.
12. Knowledge of functional or object-oriented programming.
13. Ability to write well-documented, clean typescript code.
14. Rock solid at working with third-party dependencies and debugging dependency conflicts.
15. Understanding of REST APIs, the document request model, and offline storage.

Skill Set:

React, React Hooks, Redux, and Typescript with minimum of 6+ Years of relevant Experience.

Nexus Business Solutions Pvt. Ltd. is hiring a Web/ Front-End Developer, who will play a key role in our company.

• Conceptualizing creative ideas with the team.
• Create PSDs including colors and fonts for the visual layout of the web
• Design engaging and responsive landing
• Testing and improving the design of the
• Implement and maintain high-quality SEO policies and features on
• Good understanding of content management
• Preparing design plans and presenting the website
• Optimizing sites for maximum speed and scalability across devices e. desktop, mobile, and tablet
• Proficient understanding of cross-browser compatibility
• Liaising with back-end developers to ensure web and app logic is properly integrated
• Communicate with marketing and research teams to incorporate brand elements and relevant market research findings into

• Bachelor’s in Computer Science, Graphic Design, or related field, or 4+ years’ additional experience
• Excellent hands-on experience in HTML, CSS, jQuery, JavaScript, WordPress, and API web integration
• Proficiency in Graphic design software including Adobe Photoshop, Adobe Illustrator, Adobe Premiere Pro, Craldraw and other visual design
• Professional portfolio with at least 3 (Live Projects) designs for internal review.

Job Description for React Developer ( Senior Role)

Skill : API Integration, Material UI, Redux,React Hooks, React Nagivation, HTML/CSS

Experience - 3+

Location- Vikhroli, Mumbai

Working - 5 days a week

Technical and Professional Requirements:

Highly motivated, a responsible, passionate, self-learner individual with great interpersonal

React developers should have the ability to translate Wireframes and PSD Designs into functional

Knowledge of use-case scenarios of error-boundary, hooks, store/state management solutions

Binding of UI elements to JavaScript object models

Integration of RESTful services with React application

React developer must have proven experience in front-end development

Work in a cross-functional team to deliver a complete user experience

React developers must know application structuring and maintenance of an application

Create Unit and Integration tests to ensure the quality of code

Responsibilities:

• Participating in design and development activities as required for specific projects allocated
• Understand the project requirement and able to implement and complete the allocated modules independently.
• Follows established development and testing procedures to ensure quality software development which meets the requirements
• Creates and maintains documentation regarding systems being developed in order to ensure long-term maintainability

Requirements:

• BTech or equivalent degree from a reputed institute
• Proven hands-on Software Development experience
• Design & Develop HTML5 games with the help of HTML5, CSS3, JavaScript, AJAX, SVG, Pixijs library across multiple platforms(Web/ MobileTablet/ TV)
• Building reliable and efficient code for game projects
• Should understand build milestone process and meet project timeline.
• Helps drive the delivery of successful, cutting edge products by working on a team with other Developers, and Designers
• Work towards optimization and best practices, increase performance of our application
• 1 to 3+ years of development experience. (Preferably Gaming)
• Good knowledge of HTML5, CSS3, JavaScript, AJAX, SVG, JSON
• Strong understanding of Object-Oriented Programming, and Design Patterns for Games and Web Applications
• Familiarity with any of the current generation JavaScript frameworks like PixieJS, CreateJs, Starling etc
• Strong attention to detail and knowledge of robust quality assurance practices
• Strong testing, debugging, and analytical skills