Python Developer [Medior/Senior]

🏛 The DEUS Initiative

We're a team of curious minds who believe technology should serve people. Our mission is to unlock the potential of AI for humanity through solutions that are not just innovative, but also ethical and impactful. We're driven by a desire to simply make things better.

Our name is inspired by deus ex machina, not because we think we’re gods, but because we design AI that steps in to support, solve, and serve.

DEUS also stands for what we do best:

Data | Engineering | User Experience | Strategy

With offices in Amsterdam, Porto, and A Coruña, we collaborate on international projects that challenge us to think deeply, build with care, and design for human good.

Will you be part of what comes next?

⚜️ About You

• You’re proficient in Python and have experience building APIs using FastAPI, Django, or Flask. You’re also familiar with GraphQL, gRPC, REST, or other synchronous communication protocols.
• You understand asynchronous programming and concurrency concepts in Python (e.g., asyncio, multithreading, AnyIO), and use tools like Pydantic and SQLAlchemy to write clean, production-ready code.
• You’ve worked with SQL or NoSQL databases (bonus points for experience with AWS DynamoDB or Azure Cosmos DB).
• You’re familiar with event-driven systems using tools like Kafka or RabbitMQ.
• You have experience working in cloud environments such as AWS or Azure.
• You have experience with microservices and containerized applications; knowledge of Kubernetes is a plus.
• You understand authentication protocols like OAuth2, OIDC, and JWT, and have a solid grasp of CI/CD, monitoring, and infrastructure tools like Docker (Terraform, and Helm are a plus).
• You care about code quality, write unit tests, and apply modern debugging and automation practices.
• You’re a strong team player who enjoys mentoring, sharing knowledge, and collaborating with others.

• Experience with Go or another object-oriented language.
• Basic understanding of AI systems and their core components.
• Hands-on experience with Retrieval-Augmented Generation (RAG) using vector databases like FAISS, ChromaDB, or Weaviate.
• Familiarity with agentic AI systems using tools such as LangChain, Haystack, or OpenAI’s function calling.
• Experience in prompt engineering, fine-tuning LLMs, or integrating AI into production systems.
  
  

⚜️ What You’ll Be Doing

• Collaborating with cross-functional teams to plan, design, and develop backend features using Agile methodologies.
• Creating new APIs and implementing business logic.
• Developing robust and secure authentication mechanisms.
• Launching greenfield projects and setting best practices from day one.
• Improving and maintaining CI/CD pipelines.
• Setting up monitoring, logging, and alerting systems.
• Working closely with stakeholders to gather requirements and deliver practical solutions.
• Benchmarking and optimizing backend systems for performance.
• Working with infrastructure tools like Kubernetes, Docker, Terraform, and Helm.

• Written and verbal English is the only core requirement.
• On site traveling to client location may be required.

⚜️ What You’ll Experience

• Community: Join a friendly multicultural team that loves to connect, through regular social events, activities, and our yearly company retreat, Pantheon.
• Flexibility: We encourage a hybrid setup, but there are no mandatory office days. You decide when to come in and how to manage your time.
• Growth: We support your development with a €1000 annual learning budget, dedicated mentorship, and a clear growth framework. We do annual reviews to recognize your growth and make sure your salary reflects it.
• Well-being: Benefit from health insurance, flexible benefits, extra vacation days with tenure, and regular check-ins to support your well-being.
• Purpose: Drive real impact and take ownership of meaningful projects with global clients.
  
  

⚜️ A Place Where You Belong

At DEUS, we are deeply committed to building an environment where you can truly be your authentic self. We celebrate diversity in every dimension, fostering an atmosphere where every individual feels valued and respected.

We do not tolerate any form of discrimination. We maintain a clear 'no assholes' policy, applying to both our team and our clients, ensuring a respectful and positive dynamic for all.

We’re committed to an inclusive and accessible recruitment process. So please let us know how we can best support you on the application form.

Apply now if this sounds like a fit. We’d love to meet you.