Senior Python FastAPI Software Engineer
Berlin (hybrid)
3 month initial contract w/ scope to extend
€600-800 per day

Profile Requirements
The contractor must be at a senior level as a Python developer with the following experience:

Must-have experience
• 8+ Year of Experience in professional Software Development using High-Level programming languages.
• Advanced Python (3.9+) proficiency. Strong command of asynchronous programming (asyncio, aiohttp, etc.), multiprocessing, and concurrency models.
• Extensive experience with Python frameworks for building scalable APIs and services, specifically FastAPI.
• Expertise in modular software design, with an emphasis on separation of concerns and maintainable codebases.
• Strong grasp of type hinting, dependency injection, and automated testing frameworks (pytest, unittest, or equivalent).
• Experience working with multiple database paradigms: Relational (PostgreSQL), NoSQL (Redis, MongoDB, ArangoDB/Neo4J). Experience with database libraries like SQLAlchemy.
• Deep understanding of microservice design principles, including service boundaries, state management, inter-service communication (REST, gRPC,) and API design.
• Thorough understanding of application and API security principles and related frameworks and technologies OAuth2 OIDC.

Must-have language skills:
• Fluent English in speech and writing (at least C1).

Preferred experience
• Proficient in database integration for microservices — able to design schema and data models per service and manage data consistency and performance.
• Hands-on experience with containerizing services

Responsibilities
Objective: Programming
Tasks or Responsibilities:

• Writing production grade source code to implement architecture design specifications.
• Writing unit tests and providing code documentation.
• Actively participating in activities such as agile ceremonies.

Objective: Technical Leadership
Tasks or Responsibilities:

• Making technical decisions within the boundaries set by architecture design.
• Communication of decisions to peers, architecture and relevant stakeholders.
• Generate and communicate status reports to stakeholders, e.g. architects and delivery.
• Facilitation of meetings and presentation of technical concepts in simple terms to medium sized audiences.

Objective: General Leadership
Tasks or Responsibilities:

• Providing guidance to other development stakeholders
• Ensuring on-time delivery of application features and/or entire software components.

Objective: Continuous improvement
Tasks or Responsibilities:

• Identifying opportunities for improvements towards the development process.
• Promoting and fostering agile ways of working.

By applying for this role, you consent to SGI contacting you by telephone regarding recruitment services, market updates, and relevant business opportunities

We believe in equal opportunity for all and actively encourage applications from diverse backgrounds, experiences, and perspectives.
Source Group International Ltd is acting as an Employment Business in relation to this vacancy

Senior Python FastAPI Software Engineer

Job Description

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