Blessing Softtech is hiring a Senior Backend Engineer to design, build, and scale the backend systems powering its AI products, including Fonazo, an AI voice agent platform.

The role involves end-to-end ownership of backend engineering, including architecture, APIs, databases, performance optimisation, third-party integrations, and production reliability.

Key Responsibilities:

- Design, develop, and maintain scalable, secure, high performance backend services using Python and FastAPI.
- Build and maintain RESTful APIs with authentication, validation, error handling, and API documentation using Swagger/OpenAPI.
- Design and optimise PostgreSQL databases, including schemas, relationships, SQL queries, indexing, transactions, and migrations.
- Implement asynchronous processing, background tasks, caching, and concurrency to improve application performance.
- Identify performance bottlenecks and ensure backend reliability and scalability.
- Containerise applications using Docker and support deployment across development, staging, and production environments on AWS.
- Develop CI/CD workflows, deployment processes, and rollback strategies.
- Integrate AI APIs and third-party services into backend workflows.
- Work with telephony platforms such as Plivo or Twilio for voice and call automation.
- Write clean, modular, maintainable Python code and implement unit and integration testing.




- Apply secure authentication, authorisation, input validation, and database security practices.
- Take end-to-end ownership of backend modules, participate in code reviews, mentor developers, and collaborate with frontend, QA, DevOps, and product teams.

Required Skills:

- Robust Python programming skills.
- Hands-on experience with FastAPI.
- REST API development and third party integrations.
- SQL and PostgreSQL database management and optimisation.
- Docker, AWS, and CI/CD fundamentals.
- Git, GitHub, and collaborative development workflows.
- Unit testing, integration testing, debugging, and Postman.
- Python asynchronous programming and concurrency.
- Backend security, performance optimisation, and scalable architecture.
- Experience integrating AI APIs and telephony platforms such as Plivo or Twilio is an advantage.

Eligibility:

- 5+ years of professional backend development experience.
- Ability to independently own backend development end to end.
- Strong analytical thinking and technical decision making.
- Proven experience delivering production ready, secure, and maintainable software.

How to Apply Interested candidates should send their application to [email protected]

Location: Viman Nagar, Pune, Maharashtra

Employment Type: Full-time, On-site

Joining: Immediate joiners preferred

📌 Back End Developer (India)
🏢 Blessing SoftTech
📍 India