Frontend Developer (ReactJs)

About the Role

We are seeking a creative and technically strong Frontend Developer with expertise in 3D animations to join our team. You will play a key role in building interactive, visually engaging, and high-performance web applications using modern frameworks and 3D libraries. This role involves close collaboration with designers, product managers, and backend engineers to deliver immersive digital experiences.

Key Responsibilities

• Develop and maintain responsive, user-friendly web applications.
• Implement 3D models, animations, and interactions using Three.js, WebGL, or Babylon.js.
• Collaborate with UI/UX designers to transform creative concepts into smooth, interactive experiences.
• Optimize performance for real-time rendering and animations across devices and browsers.
• Integrate backend APIs for data-driven 3D visualizations and dynamic content.
• Stay updated with the latest trends in frontend development, 3D frameworks, and animation tools.
• Ensure cross-browser compatibility, scalability, and maintainability of code.

Required Skills & Qualifications

• 3+ years of professional experience as a Frontend Developer.
• Strong proficiency in HTML5, CSS3, JavaScript (ES6+).
• Experience with React.js / Next.js (or other modern frontend frameworks).
• Hands-on expertise in 3D libraries: Three.js, WebGL, Babylon.js (or similar).
• Knowledge of animation frameworks: GSAP, Framer Motion, Anime.js.
• Strong understanding of rendering performance optimization (shaders, textures, lighting).
• Familiarity with design tools: Figma, Adobe XD, Blender, or similar.
• Excellent problem-solving, debugging, and communication skills.

Job Summary:

We are looking for a passionate Frontend Engineer with 2 to 4 years of experience to build high-quality, scalable, and user-friendly web applications. You will work closely with cross-functional teams to bring ideas to life using modern JavaScript frameworks, maintaining best-in-class UI standards, performance, and code quality.

Website: https://www.thealteroffice.com/about

Key Responsibilities:

• Develop and maintain modern, high-performance, and responsive web applications using JavaScript frameworks such as React, Vue, or Next.js.
• Translate product designs from tools like Figma into pixel-perfect, accessible, and consistent UI components.
• Build reusable components and contribute to shared design systems or UI libraries.
• Manage state effectively using tools like Redux, Zustand, or Context API.
• Ensure applications are responsive, cross-browser compatible, and adhere to accessibility standards (WCAG).
• Optimize frontend performance using tools like Lighthouse, Web Vitals, and browser profiling.
• Use TypeScript to write type-safe and scalable code.
• Write unit, integration, and E2E tests using frameworks like Jest, Testing Library, Cypress, or Playwright.
• Work with backend teams to design APIs and ensure efficient, secure frontend-backend integration.
• Implement frontend security best practices, such as XSS protection and CSP.
• Use tools like Tailwind CSS, Framer Motion, and Styled Components for rapid, modern UI development.
• Contribute to CI/CD workflows, version control using Git, and deploy applications using platforms like Vercel, Netlify, or Firebase.
• Participate in code reviews, share knowledge, and help drive technical excellence across the team.

Requirements:

• 2 to 4 years of experience building and shipping frontend applications in a professional setting.
• Proficiency in JavaScript (ES6+), HTML5, and CSS3, with a strong understanding of modern frontend architecture.
• Hands-on experience with at least one JavaScript framework/library (React preferred).
• Strong knowledge of TypeScript and state management tools.
• Solid understanding of UI/UX best practices, including responsive design, performance, and accessibility.
• Experience with testing methodologies and automation tools.
• Familiarity with design systems, component libraries, and modern build/deployment tools (Webpack, Vite, Vercel, etc.).
• Comfortable working in agile teams, collaborating with designers, product managers, and backend engineers.

Roles and Responsibilities:

• Use markup languages like HTML to create user-friendly web pages
• Optimize applications for maximum speed
• Design mobile-based features
• Collaborate with back-end developers and web designers to improve usability
• Get feedback from, and build solutions for, users and customers
• Write functional requirement documents and guides
• Create quality mockups and prototypes
• Ensure high quality graphic standards and brand consistency
• Stay up-to-date on emerging technologies

Requirements:

• Minimum 1 year of work experience as a front end developer.
• Positive attitude, great energy, and a desire to learn more about web development
• Skills in troubleshooting and debugging
• A desire to keep current and use the most up-to-date best practices
• An understanding of testing and quality control
• Has a strong interest in design and technology.

1. Hands on Expert in UI/Front End Engineering/Development specifically React,
2. Redux, NodeJs who can code, design and own front end development and code.
3. Experience in React v16, Reach Redux, React Fibre and JavaScript advance (ES6+),
4. Experience in Advance State Management [Example: Redux, Mobx, RxJs, GraphQL etc]
5. Good experience on UI framework like Angular JS/ Vue JS/ Ext JS/jQuery/ React JS or equivalent SPA framework
6. Experience in HTML5, Javascript CSS3, ExpressJs, GraphQL
7. Strong understanding of Rest APIs, Web Sockets, Service Workers, HTTP/S Protocol, Web Security and Cloud Infrastructure, CI/CD, Web Packaging and Optimization, UX and Styling.
8. Expertise in Advance Java-Scripts
9. Knowledge and experience with Data Structure and Design methodologies.
10. Problem solving skill
11. Good experience working in Agile/Scrum teams
12. Good written and verbal communication skills.

• In this role, you will Design, Develop and Deploy applications based on HTML, ReactJS, JS as front-end. You are a creative and technically skilled individual responsible for bringing great user experience and design to life. You create reusable, extensible, flexible, high-performing web applications from front end to back end.
• Execute in an agile environment using industry standard tools and delivering weekly code releases Develop and test for cross browser, cross platform applications.
• Experience in product designing, distributed architecture.
• Have a demonstrated track record of End to End product engineering responsibility

• You will be part of a growing high functional team, responsible for delivering various frontend products to the end-users. Simplifying complex workflow and make it easy for the end-users.
• The team designs and develops various products from - financial apps targeted to invoice users, data-heavy app oriented to operational and support teams, a productivity app for sales teams,
• SDK that will be integrated into third-party apps, etc.
• You will work with business, product, and backend teams to work on new features and products.
• You are expected to drive the products to maximize its business impact and customer delight.
• You are expected to stay on top of tech innovations in the Web development space, experiment them and make suitable suggestions to enhance tech stack. Research and propose software programs that are compatible with future technologies.

• Design and implement Single Page Applications (SPAs) using modern JavaScript frameworks
• Integrating data from various back-end services
• Develop a simple-to-use user interface for a complex product, apply new technologies, best design practices and usability patterns
• Contribute to end-to-end system architecture, working with/as cross-functional teams
• Collaborate with UX teams, product managers and other technical teams to create optimized and delightful user experiences
• Apply expertise of HTML5, bootstrap/foundation CSS frameworks
• Analyze the performance of layers in the frontend, backend and engineer designs/code to solve them
• Work with the product team to build flow and detail out the requirements
• Conversant with development for desktop and mobile browsers and hybrid apps.

• Proven working experience in web programming
• Top-notch programming skills and in-depth knowledge of modern HTML/CSS
• Solid understanding of how web applications work including security, session management, and best development practices
• Working with respectable size Single Page Application (SPA) project
• Expert in MVC like design patterns, modern JavaScript frameworks
• Hands-on experience with network diagnostics, network analytics tools
• Solid CS, OOP/OOD, design patterns
• Good grasp on usability and interaction design
• Track record in large-scale system software development
• Aggressive problem diagnosis and creative problem-solving skills
• Ability to work and thrive in a fast-paced environment, learn rapidly and master diverse web technologies and techniques

• Any framework - ReactJS, AngularJS, Backbone, Ember, VueJS
• DOM and Virtual DOM understanding
• API Integration. Understanding of session management. 

• Experience with server-side processing such as templating, packaging and delivery
• Some end-to-end system design experience, sensitive to security
• Experience working with webviews on Android and iOS
• Exposure to React Native
• Demonstrated visual design and layout skills
• Design and development of backend REST endpoint applications