Full Stack Engineer (Python, FastAPI, Next.js) Innerspace / Austria / Innsbruck Full-time Permanent employee

Innerspace / Austria / Innsbruck

Full-time

Permanent employee

We are looking for a Python Engineer with strong FastAPI experience and the ability to build and integrate Next.js frontends. You will develop scalable, secure, and high-performance APIs, contribute to data pipelines, and collaborate with Product, Data, QA, and DevOps teams to deliver end-to-end solutions.

Tech stack: Python 3.11+, FastAPI, PostgreSQL, SQLAlchemy, Pydantic, DuckLake, Next.js (TypeScript), and AWS.

• Design, develop, and maintain secure, scalable REST APIs using FastAPI.
• Model and optimize PostgreSQL databases, including schemas and migrations.
• Build and integrate Next.js frontends with reliable API contracts and efficient data access.
• Ensure code quality through automated testing, monitoring, and performance optimization.
• Implement authentication, authorization, and security best practices.
• Collaborate with DevOps on containerization, deployment, and AWS infrastructure.
• Contribute to ETL/ELT pipelines and data-intensive B2B workflows.

• 3+ years of Python experience building production APIs, with strong FastAPI and PostgreSQL skills.
• Hands-on experience with Next.js, TypeScript, API integration, and state management.
• Strong testing, type safety, and CI/CD practices.
• Knowledge of API security, authentication, authorization, and data protection.

• Experience with AWS, Docker, and Infrastructure as Code.
• Knowledge of WebSockets, background workers, and caching solutions like Redis.
• Experience with B2B data products, analytics, reporting, and API design.