Python Developer
First seen by Alion on Aug 31, 2026.
Role Overview :
We are looking for an experienced Python Developer with strong hands-on expertise in Python coding, Streamlit, Flask, and FastAPI. The candidate will be responsible for developing Python-based services, Streamlit applications, automation scripts, API integrations, and data-processing solutions.
Must-Have Skills :
- 5+ years of IT experience, with strong hands-on Python development experience.
- In-depth understanding of Python programming and coding.
- Hands-on experience with: Flask, FastAPI, and Streamlit.
- Strong knowledge of Python tools/libraries including: functools, dataclasses, concurrent.futures, unittest, mock, and flasgger.
- Experience developing: Python-based services, Streamlit applications, automation scripts, and API integrations.
- Experience using Python to call APIs, process responses, validate results, and handle errors.
- Strong knowledge of SQL.
- Experience with Shell Scripting and Python automation.
- Understanding of Business Intelligence and Data Warehousing concepts.
- Good understanding of data modelling.
- Strong analytical and problem-solving skills.
- Good communication and stakeholder-management skills.
Key Responsibilities :
- Design, develop, test, and maintain Python applications and services.
- Write clean, scalable, reusable, and maintainable Python code.
- Develop interactive Streamlit applications for business and analytical use cases.
- Build REST APIs and backend services using Flask and FastAPI.
- Develop Python automation scripts to reduce manual activities and improve operational efficiency.
- Integrate with internal and external APIs using Python and validate API responses.
- Implement proper error handling, logging, validation, and exception management.
- Use Python libraries such as functools, dataclasses, concurrent.futures, unittest, mock, and flasgger as appropriate.
- Develop unit tests and mock external dependencies for reliable application testing.
- Create API documentation using Flasgger/Swagger.
- Work with SQL for querying, data validation, transformation, and analysis.
- Develop Shell/Python scripts for automation and operational activities.
- Work with Business Intelligence and Data Warehouse concepts and data models.
- Participate in data modelling and development of data-driven applications.
- Troubleshoot performance, memory, concurrency, and application-level issues.
- Participate in Agile/Scrum ceremonies, sprint planning, code reviews, and technical discussions.
- Collaborate with business analysts, data engineers, developers, and other stakeholders to understand requirements and deliver solutions.
Technical Skills:
- Mandatory: Python, Python Coding, Streamlit, Flask, FastAPI, SQL, Shell Scripting, REST APIs, Data Modelling, Business Intelligence / Data Warehousing.
- Python Libraries / Tools: functools, dataclasses, concurrent.futures, unittest, mock, flasgger.
- Good To Have: Pandas, NumPy, Pytest / unittest, Git, CI/CD, Docker, Cloud platforms, API authentication and security, Agile/Scrum.
Skills
Python, Flask, FastAPI, Django, SQL, REST API