SolarSquare Energy - Technical Lead/Software Development Engineer III - MERN Stack

About The Role

Were looking for a seasoned Full Stack Developer with deep MERN stack expertise to lead technical initiatives and shape the future of SolarSquares web applications. As a Tech Lead, youll drive architecture, scale systems to handle growing demand, and mentor engineers across levels-all while collaborating with product and design teams to deliver impactful solutions in a fast-paced startup environment.

If you enjoy balancing hands-on coding with technical leadership and love solving real-world challenges at scale, this role is for you.

Responsibilities

• Lead the design and development of complex, scalable, and high-performance web applications using the MERN stack (MongoDB, Express.js, React.js, Node.js).
• Drive architectural decisions and establish engineering best practices for performance, maintainability, and security.
• Own end-to-end delivery of critical projects-from planning and technical design to deployment and monitoring.
• Champion observability and monitoring practices using tools like Prometheus, Grafana, ELK, or Datadog to ensure system reliability and proactively address bottlenecks.
• Collaborate closely with cross-functional teams (Product, UX, QA, and DevOps) to deliver seamless, user focused features.
• Guide and mentor SDE1s and SDE2s, fostering a culture of technical excellence and continuous learning.
• Define and track key engineering metrics (e.g., system uptime, latency, code quality) to drive improvements across services.
• Maintain technical documentation and architectural diagrams for knowledge sharing and team onboarding.
• Identify and address technical debt, scalability challenges, and opportunities for cost optimization in cloud environments.
• Advocate for secure coding practices and ensure applications adhere to OWASP standards and data protection policies.

• 5- 8 years of experience in full stack web development, with proven expertise in the MERN stack.
• Proficient in JavaScript and TypeScript; strong hands-on experience with React.js, Node.js, and building RESTful APIs.
• Deep understanding of microservices architectures, event-driven systems, and distributed computing principles.
• Proven ability to design and scale systems handling high traffic, ensuring fault tolerance and high availability.
• Experience with cloud platforms (AWS, Azure, or GCP), containerization (Docker), and orchestration (Kubernetes).
• Strong knowledge of observability, monitoring, and alerting systems to maintain production-grade applications.
• Familiarity with CI/CD pipelines, DevOps practices, and performance optimization techniques.
• Excellent problem-solving, debugging, and system design skills.
• Track record of mentoring engineers and leading technical discussions in Agile teams.
• Bonus : Open-source contributions, technical blog posts, or participating in engineering meetups/conferences.
• Bonus : Experience optimizing cloud infrastructure costs and implementing robust security practices.

  NOTE-PLS READ BEFORE APPLYING

• (Qualification- only B.TECH/B.E/M.E/M.TECH graduate only
• Companies- From a product base companies only)
• (ref:hirist.tech)