TCS Is Hiring for Principal Python Developer
First seen by Alion on Oct 5, 2026.
TCS Hiring for Principal Python Developer
Role: Principal Python Developer
Location: Pan India
Experience: 5 – 11 years
Education:
- Minimum 15 years of regular, full-time education (10 + 2 + 3) (B. Tech preferred)
- Python Certification (Good to have).
Job Role
Principal Python Developer with deep expertise in Azure Function App development, deployment, and optimization. This role is pivotal in designing and delivering scalable, event-driven serverless solutions on Microsoft Azure, integrating with enterprise systems, APIs, and cloud-native services. This role will lead architecture decisions, mentor developers, and collaborate cross-functionally to build resilient, secure, and high-performance applications.
Skills:
- 5 to 10 years of professional Python development experience
- 5+ years of hands-on experience with Azure Function Apps and serverless architecture
- Strong understanding of asynchronous programming, multithreading, and event-driven design
- Experience with Azure DevOps, Git, YAML pipelines
- Familiarity with containerization (Docker), API gateways, and message queues
- Expertise in securing cloud applications (OAuth2, RBAC, Key Vault, etc.)
- Excellent problem-solving, communication, and leadership skills
Responsibilities:
- Design & Architecture
- Architect serverless solutions using Azure Functions, Event Grid, Service Bus, Logic Apps, and Durable Functions
- Define best practices for Python-based microservices and event-driven architecture
- Lead design reviews and ensure alignment with enterprise cloud strategy
- Development & Deployment
- Develop robust Python applications using Azure SDKs, REST APIs, and third-party integrations
- Experience with Python frameworks like FastAPI, Flask, or Django in cloud environments
- Implement CI/CD pipelines using Azure DevOps
- Optimize cold start performance, scalability, and cost-efficiency of Function Apps
- Cloud Integration
- Integrate Azure Functions with Cosmos DB, Blob Storage, Key Vault, App Configuration, and other Azure services
- Implement secure authentication and authorization using Azure AD and Managed Identities
- Monitoring & Optimization
- Set up observability using Application Insights, Log Analytics, and custom telemetry
- Perform performance tuning, memory management, and error handling strategies
- Leadership & Mentorship
- Guide junior developers and review code for quality, security, and maintainability
- Collaborate with DevOps, Automation Engineering, and Security teams to ensure seamless delivery
Mandatory Requirements (How to generate your EPCN)
EPCN number is mandatory for eligibility of the interview. Follow the below steps to register :
Step 1: Visit [ https://ibegin.tcsapps.com/candidate/ ] or visit [ https://www.tcs.com/careers ] and click on Apply Now
Step 2: On the I Begin homepage, click on Login (Three dots/lines at top right corner of the homepage to get the option)
Step 3: Click on New User (Register with us)
Step 4: Select IT in Area of Interest and complete the registration. (Fill in the details)
Step 5: Once completed, your TCS EP ID would be generated which starts with EP2026CNXXXXXXX.
Step 6: You will be able to see your EP ID after your login to the I Begin website