Join our fast-growing startup as a Senior Backend Engineer and help build the backbone of our platform. We are a dynamic, high-growth company where your work will have a direct impact on product success and scalability. This position is in-office, fostering a fun and collaborative environment, with flexibility for a hybrid arrangement to accommodate personal needs as life comes up.

What You Will Do

- Design, build, and maintain scalable backend applications and APIs using Node.js, TypeScript, and Postgres

- Leverage AI-powered coding tools (e.g., GitHub Copilot, Tabnine) to improve development speed, code quality, and system reliability

- Architect and optimize systems for high scalability and performance as the business rapidly expands

- Implement third-party integrations and external APIs to enhance the platform s capabilities

- Develop and maintain internal tools that support fulfillment operations, internal workflows, and machine learning initiatives

- Collaborate cross-functionally with product, data, and frontend teams to ship high-impact features quickly

- Ensure backend systems are secure, well-documented, and thoroughly tested

Qualifications

- 5+ years of experience as a qualified backend engineer





- Strong proficiency in Node.js, TypeScript, and Postgres

- Proven experience building and scaling eCommerce or online marketplace platforms

- Passion for using the latest AI coding tools and AI-driven best practices to enhance development workflows

- Deep understanding of cloud platforms (AWS or GCP) and containerization / infrastructure-as-code tools (Docker, Terraform)

- Ability to move fast and iterate quickly in a startup workplace while maintaining high code quality

- Excellent problem-solving skills and the ability to communicate technical trade-offs effectively

Tech Stack

- Languages & Frameworks: TypeScript, Node.js, Python

- Database: Postgres

- Cloud & Infrastructure: AWS (S3, SQS, etc.)

- AI Development Tools: AI-powered coding assistants (e.g., GitHub Copilot, Tabnine), LLM-based development enhancements

Disclaimer: This job posting has been aggregated from external source. Role details, content, and availability are subject to change. Applicants are advised to confirm the latest information directly on the company website before applying.

📌 Sr Backend Engineer (Kolkata)
🏢 Arena Club
📍 Kolkata