Frontend Developer

Location: Bengaluru, Karnataka (Onsite) About the Company: Sustainability Economics.ai is a global organization, pioneering the convergence of clean energy and AI, enabling profitable energy transitions while powering end-to-end AI infrastructure. By integrating AI-driven cloud solutions with sustainable energy, we create scalable, intelligent ecosystems that drive efficiency, innovation, and long-term impact across industries. Guided by exceptional leaders and visionaries with decades of expertise in finance, policy, technology, and innovation, we are committed to making long-term efforts to fulfil this vision through our technical innovation, client services, expertise, and capability expansion. Role Summary: We are seeking a motivated Frontend Developer to design, build, and maintain interactive and responsive web applications. You will translate UI/UX designs into efficient, maintainable code while creating dynamic visualizations using libraries like D3.js and Three.js . You will work across the full product lifecycle, collaborating closely with backend developers, designers to deliver high-performance, visually rich applications. Key Responsibilities: Develop, optimize, and maintain React and Next.js based components and applications. Create dynamic and interactive data visualizations using D3.js and 3D/graphics experiences using Three.js . Convert UI/UX designs into responsive HTML, CSS, and TypeScript code. Integrate APIs and backend services with front-end applications. Debug and resolve performance, compatibility, and responsiveness issues. Write clean, scalable, reusable, and well-documented code. Collaborate with cross-functional teams to ensure high-quality product delivery. Stay updated on modern web development tools, visualization libraries, and best practices. Education & Experience: Bachelor’s or Master’s degree in Computer Science, Information Technology, or a related field. Minimum 1 year of professional experience as a Frontend Developer, UI Developer, or similar role. Strong knowledge of HTML, CSS, JavaScript, and front-end frameworks (React, Next.js). Experience with CSS libraries/frameworks such as Bootstrap, Tailwind, SASS, and CSS GRID systems. Experience with Chart JS, D3.js and Three.js is required. Basic knowledge of cloud platforms such as AWS is a plus. Skills Required: Proficiency in React, Redux, Next.js, and TypeScript. Strong experience in API integration and front-end architecture. Expertise in interactive data visualization using D3.js and 3D graphics using Three.js . Knowledge of responsive design, cross-browser compatibility, and performance optimization. Proficiency with version control tools like Git. Strong problem-solving, analytical thinking, and debugging skills. What You’ll Do: Build and maintain web applications for international-scale platforms. Translate design mock-ups into functional, responsive, and visually rich interfaces. Collaborate with Backend engineers to integrate APIs and services. Ensure web applications meet performance, accessibility, and scalability standards. Continuously monitor, maintain, and improve front-end code quality and application performance. What You Will Bring: Proven experience in building scalable, interactive, and visually engaging web applications. Strong understanding of front-end technologies, visualization libraries, and best practices. Passion for clean code, user experience, and web performance. Ability to work collaboratively in a fast-paced startup environment. Startup DNA → bias to action, comfort with ambiguity, love for fast iteration, and growth mindset. Why Join Us Shape a first-of-its-kind AI + clean energy platform . Work with a small, mission-driven team obsessed with impact. An aggressive growth path. A chance to leave your mark at the intersection of AI and sustainability .