Back End Developer

2 days ago

Kolkata, West Bengal, India 009a0a71-2254-4b2c-aaae-9c8b9488ce1b Full time ₹ 12,00,000 - ₹ 36,00,000 per year

Company Description

Aswini Bajaj Classes is a leading edtech platform offering comprehensive CFA, FRM, and Upskilling Courses. Founded by finance expert Aswini Bajaj, it is known for its conceptual clarity, practical insights, structured learning, and student-focused mentoring, helping aspirants build careers in finance.

Role Description

We are seeking a Backend Engineer skilled in NestJS, , and TypeScript to design and build scalable backend services and APIs for our web and mobile platforms. The role involves leading backend architecture, developing real-time features with WebSocket ), collaborating closely with front-end and mobile teams, and mentoring junior developers. The ideal candidate has strong experience with PostgreSQL, modern DevOps workflows, system optimization, and delivering high-performance, maintainable backend solutions.

Responsibilities:

  • Design and develop scalable, high-performance back-end services and APIs using NestJS ) and TypeScript.
  • Build robust, modular architectures supporting web , ) and mobile (Android, iOS) clients.
  • Develop real-time features using WebSocket ) for cross-platform synchronization.
  • Collaborate with front-end developers to ensure seamless API integration and optimized user interfaces.
  • Work with Android and iOS developers to provide API-level support and ensure consistent multi-platform experiences.
  • Mentor junior and mid-level developers, guiding backend architecture, API development, and integration.
  • Lead architectural planning, enforce backend coding standards, and drive scalable system design.
  • Conduct code reviews and ensure clean, maintainable, and modular codebases.
  • Collaborate with DevOps and internal teams for efficient deployment, CI/CD pipelines, and infrastructure management.
  • Proactively diagnose and resolve system bottlenecks, bugs, and integration issues.

Required Skills and Qualifications:

  • Bachelor's degree in Computer Science, Software Engineering, or related field.
  • Relevant practical experience or certifications will also be considered.
  • Strong experience with NestJS, , and TypeScript for backend development.
  • Solid understanding of REST APIs, GraphQL (optional), and backend design principles.
  • Experience with real-time technologies like WebSocket ).
  • Familiarity with front-end integration: , , JavaScript/TypeScript, Tailwind CSS.
  • Proficient in working with relational and non-relational databases: PostgreSQL, and ORM tools (Prisma, TypeORM).
  • Strong architectural and debugging skills.
  • Comfortable with version control systems like Git and GitHub workflows.
  • Excellent communication and mentoring skills to lead cross-functional teams.

Preferred Skills and Qualifications:

  • Experience with containerization (Docker), cloud platforms (AWS, GCP, or Azure), and microservices architecture.
  • Exposure to API performance tuning and mobile API optimization.
  • Experience leading backend technical initiatives and contributing to long-term product strategy.

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