Backend Developer (Node Js)

About SolarSquare Energy: At SolarSquare we are building the Home-Energy brand of future India. We help homes switch to rooftop solar and move away from traditional coal electricity. We are a full-stack D2C residential solar brand - designing, installing, maintaining (after-sales) and financing solar systems for home-owners across India. In 3 years, we have scaled to become the leading residential solar brand in India. We are obsessed with quality, customer service and innovating to make it simple for homes to switch to solar. We are looking for leaders to join us in this mission. Know us a bit better through these links: Techcrunch SolarSquare article Elevation - Podcast with SolarSquare Founders Startup by IIT Grads Helps Indian Homes Run on Zero Electricity, Earns Rs 200 Crore in Revenues The Climate Conversations ft Solar Square Elevation Capital - SolarSquare Job Title: Backend Developer (Node.js) Location: Mumbai Work Arrangement: Flexible (Hybrid, Mon-Fri) Company: SolarSquare Role Overview: We are looking for a talented and experienced Backend Developer (Node.js) to join our engineering team at SolarSquare. In this role, you will be responsible for building and maintaining the backend systems that power our customer-facing applications and internal platforms. You will work closely with frontend engineers, product managers, and other stakeholders to deliver scalable, reliable, and high-performing solutions in the clean energy domain. Key Responsibilities: Design, develop, and maintain server-side applications using Node.js Build and manage well-documented and scalable RESTful APIs Integrate with both internal and third-party services Collaborate with frontend developers to ensure smooth end-to-end system integration Optimize application performance and troubleshoot issues Follow best practices in code quality, testing, and documentation Implement core services like caching , logging , and monitoring Participate in code reviews , architecture discussions, and sprint planning Deploy and manage services using Docker , Kubernetes , and cloud platforms (AWS/GCP/Azure) Work in an agile environment and contribute proactively to team goals What We Offer: Purpose-driven work in the fast-growing renewable energy sector Flexible hybrid work arrangement Opportunity to work on cutting-edge technologies and scalable systems Collaborative and inclusive team culture Competitive salary and performance-based incentives Upskilling opportunities and access to learning resources Chance to create meaningful impact and help accelerate India’s clean energy transition Required Skills & Experience: 3+ years of backend development experience, primarily using Node.js Strong knowledge of JavaScript , SQL/NoSQL databases , and asynchronous programming Experience with REST API design , event-driven architecture , and microservices Hands-on with Docker , Kubernetes , and cloud platforms ( AWS/GCP/Azure ) Familiarity with Test-Driven Development (TDD) Comfortable using Git and version control tools Excellent problem-solving, communication, and collaboration skills