Senior Python Developer

Tekskills Inc.; Dadri; On-site; INR 1,200,000 - 2,000,000; Full time

Job summary

Tekskills Inc. is seeking a Senior Python Developer with 8+ years of backend experience to lead server-side design and implementation. The role emphasizes highly performing Python code, API design, and scalable data processing using modern frameworks such as FastAPI and Pydantic.

You will work on asynchronous programming, architecture decisions, testing discipline, and observability. Proficiency with containerized environments (Docker, Kubernetes) and cloud basics is expected for reliable,

Qualifications

• 8+ years of backend Python experience with strong API design.
• Proficient in asynchronous programming and modern typing.
• Hands-on with FastAPI, Pydantic, and OpenAPI specs.
• Data processing using Polars or similar frameworks.
• Experience with testing (pytest) and TDD.
• Knowledge of DDD, event-driven design, and design patterns.
• Solid understanding of SOLID, DRY, and clean code.
• Experience with monitoring, logging, and observability.

Skills

Advanced Python & Backend

Async programming

FastAPI & Pydantic

Polars / columnar data

API design (REST/OpenAPI)

TDD & testing

DDD & design patterns

SOLID / GRASP

Observability & logging

Performance profiling

Tools

Docker

Kubernetes

Git & PR workflows

CI/CD pipelines

OpenAPI/Swagger familiarity

PostgreSQL / NoSQL

Job description

Senior Python Developer

Experience: 8+ Years

Bangalore / Gurgaon

Skillset:

Core Python & Backend

• Advanced Python (including async/await, concurrency, and performance considerations)
• Asynchronous programming (asyncio, async frameworks)
• Strong experience with FastAPI, Pydantic, and modern Python typing
• Data processing experience using Polars (or similar columnar data frameworks)
• API design (RESTful APIs; familiarity with OpenAPI/Swagger)

Architecture & Design

• Test-Driven Development (TDD) and strong testing practices
• Domain-Driven Design (DDD)
• Event-driven architecture
• Solid understanding of SOLID principles, GRASP, DRY, and Clean Code
• Experience applying common design patterns appropriately
• Ability to reason about trade-offs in low-level design

Quality, Reliability & Operations

• Strong unit, integration, and contract testing practices (e.g., pytest)
• Experience with logging, monitoring, and observability (metrics, tracing)
• Understanding of performance profiling and optimization
• Familiarity with error handling, resilience patterns, and fault tolerance

Tooling & Ecosystem

• Version control with Git and collaborative workflows (PR-based development)
• Experience working in CI/CD pipelines
• Familiarity with containerization (Docker; Kubernetes a plus)
• Experience with relational and/or NoSQL databases (PostgreSQL, etc.)
• Comfort working in cloud environments (AWS/GCP/Azure any one is sufficient)