Lead Python Backend Developer – FastAPI & Flask

Winzons; India; On-site; INR 1,800,000 - 2,800,000; Full time

Job summary

AIFA Labs in Hyderabad is seeking a Lead Python Backend Developer to build scalable APIs using FastAPI and Flask. You will drive backend development, data handling with NumPy and Pandas, and collaborate across data engineering and frontend teams to deliver robust software solutions.

The role requires 6+ years of experience, a Bachelor’s degree, and leadership capabilities. It offers a hybrid work model after 3 months (3 days office, 2 days remote) and an on-site start.

Qualifications

• Strong Python programming skills.
• Experience in API development using FastAPI and Flask.
• Experience with data manipulation using NumPy and Pandas.
• Experience in a Lead role.
• Familiar with REST principles and asynchronous programming.
• Version control with Git; containerization with Docker is a plus.

Responsibilities

• Design, develop, and maintain backend services using FastAPI and Flask.
• Write clean, reusable Python code.
• Process large datasets with NumPy and Pandas for transformation and analysis.
• Collaborate with data engineering and frontend teams to deliver robust software.
• Optimize applications for performance, scalability, and reliability.
• Implement security and data protection in API services.
• Write unit and integration tests; maintain documentation for APIs and architecture.

Skills

Python

FastAPI/Flask

NumPy/Pandas

Lead

REST

Asynchronous programming

Education

Bachelors in CS or related field

Tools

Docker

Git

CI/CD

Job description

• Company Name: AIFA Labs
• Job Role: Lead Python Backend Developer
• Work Type: Full-Time (Hybrid after 3 months: 3 days WFO, 2 days WFH)
• Experience: 6+ Years
• Qualification: Bachelor’s Degree in Computer Science or Related Field
• Location: Hyderabad (On-Site)
• Notice Period: Immediate to 15 Days

Job Summary

We are seeking a skilled and motivated Python Developer with hands‑on experience in building APIs using Fast API and Flask. The ideal candidate should be proficient in Python programming and have a strong grasp of data manipulation and analysis using NumPy and Pandas. You will be responsible for developing scalable backend services, integrating APIs, and working closely with data engineering and frontend teams to deliver robust software solutions.

Key Responsibilities

• Design, develop, and maintain using Fast API and Flask.
• Write clean, reusable, and efficient code in Python.
• Work with large datasets using NumPy and Pandas for data transformation and analysis.
• Collaborate with cross‑functional teams to gather requirements and implement backend services.
• Optimize applications for performance, scalability, and reliability.
• Implement security and data protection protocols in API services.
• Write unit and integration tests to ensure code quality.
• Maintain documentation for code, APIs, and system architecture.

Required Skills & Qualifications

• Strong programming skills in Python.
• Proficiency in developing APIs using Fast API and/or Flask.
• Experience with data manipulation libraries like NumPy and Pandas.
• Experience as Lead.
• Familiarity with REST principles and asynchronous programming.
• Experience with version control tools like Git.
• Understanding CI/CD pipelines and containerization (e.g., Docker) is a plus.
• Bachelor's degree in computer science, Engineering, or related field, or equivalent practical experience.