• Develop and maintain responsive user interfaces using React.js, JavaScript/TypeScript, HTML5, and CSS3 • Build reusable components and scalable UI libraries • Integrate and manage RESTful and GraphQL APIs • Optimize application performance • Collaborate in Agile environments

Role Description As a Frontend Engineer, you will play a key role in building a high-performance, data-intensive web application that transforms complex automotive time-series data into intuitive, actionable insights. The platform enables engineers and analysts to upload, process, validate, and explore vehicle signal data across a multi-step workflow—from ingestion to quality validation and visualization. Your work ensures that these workflows are reliable, responsive, and easy to use, even when handling large datasets and real-time updates. Your primary responsibility is to design and implement scalable, maintainable frontend systems that integrate seamlessly with backend services and real-time pipelines. As the product grows in complexity, your expertise will be critical in maintaining performance, usability, and architectural consistency. Qualifications - Strong professional experience with React and modern frontend development. - Expertise in TypeScript (strict mode, advanced types, generics). - Experience with state management patterns and clear separation of client vs server state. - Hands-on experience integrating REST APIs (e.g., with Axios). - Solid understanding of component architecture and composition patterns. - Experience with modern styling approaches such as Tailwind CSS. - Testing experience with modern tools (Vitest/Jest + Testing Library). - Familiarity with Git workflows and collaborative development. Requirements - Design and build scalable React applications using a modern TypeScript-first stack. - Implement modular feature-based architecture with clear separation between UI, state, and data layers. - Ensure high performance and responsiveness across complex data-heavy interfaces. - Develop interactive dashboards and tools for time-series data using Apache ECharts. - Translate complex data processing steps into intuitive multi-stage user workflows (upload → mapping → validation → analysis). - Implement advanced UI features such as filtering, sorting, zooming, and comparison views. - Integrate REST APIs using structured service layers and hooks. - Manage server state with TanStack Query and client state with Zustand. - Handle caching, optimistic updates, and synchronization with backend systems. - Implement real-time features using Socket.IO for pipeline updates, notifications, and system status. - Ensure consistent UI updates based on asynchronous events and long-running backend processes. - Write and maintain unit and integration tests using Vitest and Testing Library. - Maintain strict TypeScript standards with zero `any` usage. - Ensure code quality through linting, testing, and CI pipelines. - Work closely with backend engineers, data engineers, and product stakeholders to define API contracts and user experiences. - Translate technical requirements into clean, maintainable UI solutions. - Communicate design decisions and implementation trade-offs clearly. - Document frontend architecture, patterns, and workflows. - Contribute to shared design systems and frontend best practices. - Support team members with guidance on architecture, tooling, and patterns. Benefits - Working on a modern frontend stack built around React, TypeScript, and a strongly modular architecture. - Multi-step workflow systems with enforced state transitions. - Real-time data pipelines and notifications. - Advanced data visualization dashboards. - A custom design system with semantic tokens and theming. - A scalable app shell with dynamic layouts. - The environment emphasizes code quality, maintainability, and strong collaboration between frontend and backend teams.

• Pixel-Perfect Migration: Rebuild the current live site from scratch in Next.js. Every margin, transition, and typographic detail must be identical to the original. • Performance Engineering: Optimize the site for perfect Lighthouse scores (Performance, Accessibility, Best Practices, and SEO). • Vercel Deployment: Manage the deployment pipeline and ensure smooth hosting configuration on Vercel. • Responsive Refinement: Ensure the experience is flawless and fluid across all breakpoints (Mobile, Tablet, Desktop). • Ad-hoc Implementation: Post-launch, translate new Figma/Framer designs into clean, maintainable code.

About Smart Working At Smart Working, we believe your job should not only look right on paper but also feel right every day. This isn’t just another remote opportunity - it’s about finding where you truly belong, no matter where you are. From day one, you’re welcomed into a genuine community that values your growth and well-being. Our mission is simple: to break down geographic barriers and connect skilled professionals with outstanding global teams and products for full-time, long-term roles. We help you discover meaningful work with teams that invest in your success, where you’re empowered to grow personally and professionally. Join one of the highest-rated workplaces on Glassdoor and experience what it means to thrive in a truly remote-first world. About the Role We are looking for a Senior App & Frontend Developer to take a leading role in the development of modern web and mobile applications. This is a senior, hands-on engineering position focused primarily on frontend development, where you will help shape architecture, drive UI quality, and support the wider engineering team in delivering scalable, maintainable applications. You will work in a small, focused team environment, contributing to both strategy and execution, with a strong emphasis on modern frontend frameworks, hybrid mobile app development, and the effective use of AI tools in day-to-day engineering work. Responsibilities - Lead frontend and app development across web and mobile platforms - Design, build, and maintain scalable frontend applications using React and modern frameworks - Develop hybrid mobile applications using Ionic and Capacitor - Collaborate with engineers, designers, and stakeholders to deliver high-quality user experiences - Define and implement frontend architecture, standards, and best practices - Ensure responsive, performant, and accessible UI across devices and platforms - Support and mentor other engineers within the team - Evaluate and introduce modern frontend technologies and AI tools to improve development efficiency - Work closely with backend systems to integrate APIs and services - Drive technical decisions and contribute to project planning and delivery Requirements - 10+ years of experience in React for building production-grade applications - 5+ years of experience with Angular (including version 15+) in production environments - Strong knowledge of CSS frameworks and modern UI development practices - Experience using AI tools to support software development workflows - Strong experience with Ionic (7+) and Capacitor for hybrid mobile development - Proven experience leading frontend development efforts or technical delivery - Strong understanding of application architecture and UI performance optimisation - Ability to take ownership of frontend delivery in a small team environment - Strong problem-solving skills and attention to detail - Experience working independently while collaborating effectively with small teams - Strong communication skills and ability to contribute to technical discussions Nice to Have - Experience leading frontend architecture in small or mid-sized teams - Exposure to cross-platform mobile development challenges - Experience improving frontend performance and scalability in production systems - Familiarity with modern design systems and UI component libraries - Experience working in fast-moving, product-focused environments - Strong interest in AI-assisted development and modern engineering workflows - Experience mentoring or supporting junior engineers (without formal management responsibility) Benefits - Fixed Shifts: 12:00 PM - 9:30 PM IST (Summer) | 1:00 PM - 10:30 PM IST (Winter) - No Weekend Work: Real work-life balance, not just words - Day 1 Benefits: Laptop and full medical insurance provided - Support That Matters: Mentorship, community, and forums where ideas are shared - True Belonging: A long-term career where your contributions are valued At Smart Working, you’ll never be just another remote hire. Be a Smart Worker - valued, empowered, and part of a culture that celebrates integrity, excellence, and ambition. If that sounds like your kind of place, we’d love to hear your story.