Junior Backend Developer – Python, FastAPI & AI

Company: Lingsaa Technologies Private Limited

Location: Guntur, Andhra Pradesh

Job Type: Full-time

Experience: 0–1 Year

Work Mode: On-site

Experience Level: Fresher / Entry Level

Job Summary

Lingsaa Technologies Private Limited is looking for a Junior Backend Developer with strong hands-on knowledge of Python, FastAPI, SQL, REST APIs, and AI/Generative AI tools.

We are looking for freshers who have strong technical fundamentals and practical experience through academic projects, internships, personal projects, or training projects. The selected candidate will work on real-world enterprise applications and AI-powered solutions.

Key Responsibilities

- Develop and maintain backend applications using Python and FastAPI
- Design and develop scalable REST APIs
- Work with MS SQL Server and implement database operations
- Integrate third-party APIs and external services
- Develop and integrate AI/LLM-powered features
- Work with AI APIs such as OpenAI and other Generative AI platforms
- Implement authentication, authorization, validation, and API security
- Debug and resolve backend issues
- Write clean, reusable, and maintainable code
- Perform API testing using tools such as Postman
- Collaborate with frontend developers and other team members
- Participate in code reviews and technical discussions
- Learn and implement new backend and AI technologies

Required SkillsPython
- Strong knowledge of Python
- Object-Oriented Programming
- Data structures and functions
- Exception handling
- File handling and modules
- Async programming
- Writing clean and reusable code

FastAPI
- Strong hands-on knowledge of FastAPI
- REST API development
- Pydantic models
- Request and response handling
- Dependency Injection
- Middleware




- Authentication and authorization
- Async APIs
- Swagger / OpenAPI documentation

Database
- Strong SQL knowledge
- CRUD operations
- Joins and subqueries
- Database design
- Stored procedures
- MS SQL Server knowledge preferred

AI / Generative AI
- Good understanding of Generative AI and LLMs
- Hands-on experience with AI tools and APIs
- Experience integrating LLM APIs
- Prompt Engineering
- Understanding of AI application development
- Knowledge of embeddings and vector databases is an advantage
- LangChain / LangGraph knowledge is an advantage

Other Technical Skills
- REST APIs
- JSON
- Git / GitHub
- Postman
- Docker knowledge is an advantage

Requirements
- B.Tech / B.E. / M.Tech / MCA / B.Sc. Computer Science or related field
- Freshers with strong technical knowledge are encouraged to apply
- Candidates should have at least one practical project involving Python/backend development
- Candidates with projects involving Python FastAPI SQL AI will be preferred
- Strong problem-solving and analytical skills
- Good communication and teamwork skills
- Willingness to learn and work on new technologies

What We Offer
- Opportunity to work on real-world enterprise software
- Exposure to AI and Generative AI technologies
- Hands-on experience with modern backend technologies
- Prospect to work with experienced developers
- Learning and career growth opportunities
- Opportunity to contribute to production-level applications

Preferred Candidate A candidate who can independently build a FastAPI backend, connect it to a SQL database, create REST APIs, and integrate an AI/LLM API will be highly preferred.

Freshers with strong practical skills are welcome to apply.

Pay: ₹207,000.00 - ₹275,000.00 per year

Benefits

- Health insurance

Work Location: In person

📌 Backend Developer (Guntur)
🏢 Lingsaa Technologies
📍 Guntur