Python Developer

TESTQ Technologies • Kolkata, IN

3 days ago

Job description

Required Qualifications :

Experience : 8+ years of professional software development experience, primarily focused on backend systems using Python.
Core Backend : Expert proficiency in Python and developing high-performance RESTful APIs, with specific, demonstrable experience using FastAPI.
API Standards : Deep understanding and practical experience defining APIs using the OpenAPI Specification (OAS), including tooling for validation and documentation.
Architecture : Proven history of designing, deploying, and maintaining systems built on Microservice Architectures.
Data Layer : Expertise with relational databases and using advanced Database ORM features for complex query optimization and schema migrations.
Workflow Systems : Experience defining, implementing, and managing complex business logic using step-based, state-driven, or declarative workflow systems (e.g., orchestration tools, custom state machines).
Cloud & Data : Strong experience working with cloud environments (AWS, GCP, or Azure) and significant experience integrating systems with Snowflake.
Preferred Qualifications (Nice-to-Haves)
Experience in integrating AI-Driven Development principles into software lifecycles.
Experience with AI Editors (Cursor, Windsurf etc) for coding
Understanding on RAG and AI applications
Familiarity with containerization (Docker, Kubernetes) and CI / CD pipelines.
Knowledge of asynchronous programming patterns and performance tuning in Python (asyncio).

Key Responsibilities :

Architectural Design & Implementation :

Microservices : Lead the design and implementation of robust, scalable, and secure microservices using Python and FastAPI (or similar asynchronous frameworks).

API Specification / AI Native Development : Define, document, and maintain all service endpoints using the OpenAPI Specification (OAS) standard to ensure consistency, clarity, and ease of consumption by frontend and internal teams.

Workflow Systems : Design and implement resilient, step-based state machines or declarative Workflow Systems to manage complex, multi-step business logic and data processing pipelines.

AI Enablement & Data Integration :

AI-Driven Development : Integrate machine learning models (AI / ML) into production microservices.

Data Integration : Architect and develop robust data synchronization with experience in Snowflake integrations (e.g., using Snowflake Python Connector or ORM extensions) to handle large-scale analytical and transactional data flows.

Data Persistence : Implement and optimize data models and persistence layers using modern Database ORMs (e.g., SQLAlchemy, SQLModel) for relational and NoSQL databases.

Engineering Quality & Best Practices :

Code Quality : Define and enforce organization-wide Code Base Best Practices and rigorous Code Quality standards, including performance, security, and maintainability.

Testing : Establish comprehensive Unit Test Cases, integration tests, and end-to-end testing strategies to ensure high coverage and reliability across all services.

Mentorship : Provide technical leadership, mentorship, and code reviews to mid and senior-level engineers, fostering a culture of technical excellence.

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Python Developer • Kolkata, IN