Senior Python Developer (Backend)
Summary
Build and lead backend systems for a manufacturing marketplace using Python, FastAPI, and event-driven architectures to match orders with suppliers and manage production workflows.
We do not discriminate based on race, color, national origin, sexual orientation, gender, age, mental or physical ability, or any way you represent yourself.
Senior Python Developer
This is a hybrid role, and we are accepting applications from candidates based in the Netherlands.
The Manufacturing Partner Marketplace is the operational heart of Protolabs Network. We own the full order lifecycle – matching orders to the right manufacturing partners, moving them through production and quality control, and ensuring on‑time delivery. Our work is critical to maintaining seamless operations and customer satisfaction.
Within this domain you'll be building systems that power the marketplace – automated auctions, order allocation, supplier tooling, production workflows, global logistics, quality control, and internal ops tools. We are looking for a pragmatic problem solver who will thrive in a dynamic environment and can take ownership of the business problem, not just the technical solution.
Our Tech Stack
- Backend: Python 3.11+ with FastAPI, Flask and SQLAlchemy, Celery with RabbitMQ for background tasks, KNative for eventing
- Frontend: Angular 15 with TypeScript
- DevOps: Kubernetes on AWS (using EKS), Terraform, GitHub Actions
- Data: PostgreSQL on RDS, Redis on Elasticache
- Integrations: Retool and Zapier
What you’ll do
- Lead the design and delivery of features end to end, working cross‑functionally with stakeholders to solve complex marketplace problems
- Build APIs and backend systems that power the order lifecycle – from supplier matching to delivery
- Drive architectural decisions and improve the technical foundations of our platform
- Mentor engineers and raise the bar on engineering practices within the team
- Integrate with eventing systems and scale our platform as order volume grows
- Improve the quality of our products through testing, observability, and best practices
- Collaborate with our Backend guild to set standards and improve the state of our backend systems
What you’ll bring
- 7+ years of experience building web applications and backend services
- Strong proficiency in Python for designing, developing, testing and monitoring production systems
- Experience with relational databases such as PostgreSQL
- Experience with Docker, Kubernetes, and CI/CD environments
- Track record of leading technical projects and mentoring other engineers
- Experience working in an agile team with product managers and designers
- Excellent communication and collaboration skills
Bonus Points For
- Experience with marketplace platforms or operational systems
- Deep understanding of event‑based architectures
- Familiarity with Angular
Benefits
- Annual company bonus
- Wellness and well‑being access to OpenUp psychologists, mindfulness with Headspace and other resources
- Dog‑friendly office encouraging pets
- Daily lunch and snacks provided in office
- Learning and development days and funds for training, events and workshops, access to our in‑house LEARN platform, in‑house 3D printing and more
- Social media engagement – view Life at Protolabs on Instagram