Senior Node.js Backend Developer

About the job

We are looking for a highly skilled Senior Node.js Backend Developer with deep expertise in designing scalable, high-performance backend systems. The ideal candidate will have hands-on experience in Generative AI (GenAI), working with large language models (LLMs), and be comfortable using modern AI-assisted development tools... The role involves designing complex system architectures, optimizing databases (preferably MySQL), integrating third-party APIs and GenAI models, and collaborating with cross-functional teams to deliver intelligent, future-ready software solutions. Strategic Responsibilities • Design and develop robust, scalable, and intelligent backend applications using Node.js and related framework. • Work on GenAI-driven systems, integrating large language models (LLMs) and AI APIs into backend workflows. • Utilize AI-assisted coding tools (e.g., Copilot, Cursor) to improve efficiency and maintain high code quality. • Design, optimize, and maintain MySQL database schemas, ensuring scalability, performance, and data integrity. • Architect complex backend systems, implementing microservices, event-driven designs, and distributed processing. • Perform rigorous testing, including unit and integration testing, to ensure application stability and reliability. • Debug and resolve technical issues, ensuring timely and sustainable solutions. • Participate in code reviews to maintain code quality and promote knowledge sharing. • Mentor junior developers and support team-wide technical growth. • Perform market research and opportunity assessments on new concepts and ideas. Required Experience: • 4–8 years of experience in backend development with a focus on Node.js and scalable system design. • Hands-on experience with Generative AI (GenAI), LLMs (OpenAI, Gemini, Claude, etc.), and AI API integration. • Proficiency in JavaScript and TypeScript, including asynchronous programming and performance optimization. • Proficient in developing and consuming RESTful APIs. • Solid understanding of version control systems, especially Git. • Strong debugging, analytical, and problem-solving skills. • Experience with TypeScript in a Node.js environment. • Familiarity with Redis, RabbitMQ, or other caching / message-queue systems. • Hands-on experience with Docker and container-based deployment. • Familiarity with unit testing frameworks such as Mocha, Chai, or Jest. • Knowledge of security best practices in backend development (e.g., OAuth2, JWT, SQL injection prevention). • Basic understanding of frontend technologies (HTML, CSS, and JavaScript frameworks). Soft Skills: • Excellent verbal and written communication skills. • Ability to work both independently and collaboratively in a fast-paced, agile environment.

Requirements

• Node.js
• Generative AI
• LLMs
• MySQL
• JavaScript
• TypeScript
• RESTful APIs

Preferred Technologies

• Node.js
• Generative AI
• LLMs
• MySQL
• JavaScript
• TypeScript
• RESTful APIs

About the company

Polestar Analytics helps its customers bring out the most sophisticated insights from their data in a value-oriented manner. From analytics foundation to analytics innovation initiatives, we offer a comprehensive range of services that help businesses succeed with data. We have a geographic presence in the United States (Dallas, Manhattan, New York, Delaware), UK (London) & India (Delhi-NCR, Mumbai, Bangalore & Kolkata) and have 600+ people strong world-class team. We are growing at a rapid pace and plan to double our growth each year. This provides immense growth and learning opportunities for those who are choosing to work with Polestar.