Senior Backend Developer
Workload: 80–100% Help us build Axpo’s next-generation service portal from the ground up. Join a cross-functional team that values lean principles, smart tech choices, and real user impact in the energy sector.
What you will do:
- Build resilient backend services in Python for web apps, scripting, data processing, ML integrations, and APIs
- Set up dependency management, build pipelines, and virtual environments for scalable delivery
- Use containers and Azure cloud to deploy and operate services; manage CDNs, access controls, and proxies
- Design and operate SQL databases (ideally Postgres/Azure DB), including indexing, search, and effective data models
- Define architecture, APIs, and schemas; design event-driven flows and ETL processes
- Document architecture decisions and design choices aligned to business and IT strategy
What you bring & who you are:
- Strong experience building and operating Python services in production.
- Solid cloud background (Azure preferred), including containers (Docker) and Infrastructure as Code (e.g Terraform).
- Proficient with relational databases (PostgreSQL or Azure SQL): schema design, indexing, query tuning, and operations.
- Strong understanding of APIs and data contracts; experience with REST or GraphQL.
- Comfortable defining and documenting service architectures and technical decisions.
- Clear communicator with a bias for quality, automation, and observability.
- Fluent in English; Spanish is a plus.
Even if you don't meet every point, we'd love to hear from you.
About the team: We’re Group IT in Madrid: a supportive, cross-functional team driving digitalization at Axpo. We iterate quickly, learn together, and value diverse perspectives to deliver meaningful outcomes.
At Axpo Group, we are dedicated to fostering a culture of non-discrimination, tolerance, and inclusion. As an equal opportunity employer, we welcome applications regardless of race and ethnicity, gender identity and expression, sexual orientation, age, disability, as well as socioeconomic, cultural, and religious background. We are committed to ensuring a respectful and inclusive recruiting process and workplace for everyone.
- Department
- IT / Technology
- Role
- Permanent position
- Locations
- Madrid
- Remote status
- Hybrid
- Employment type
- Full-time
3 numbers we're proud of:
- Years of experience
- Employees
- Different job profiles
At Axpo, all employees have the freedom to develop their personal skills and potential and to remain true to themselves. Axpo lives a culture that is free of prejudices about age, gender, origin, education, religion, disability or sexual orientation. We promote uniqueness. Because uniqueness creates diversity. And diversity promotes growth and is our driving force.
Interested in what it's like to work at Axpo? Check out some testimonials here or on our social media channels
Madrid
Related jobs
About Axpo Group
Axpo's ambition is to provide society with a sustainable future through innovative energy solutions. Axpo is the largest Swiss producer of renewable energy and an international pioneer in energy trading and the marketing of solar and wind power. More than 7,000 employees combine experience and know-how with a passion for innovation and the joint search for ever better solutions. Axpo relies on innovative technologies to meet the ever-changing needs of its customers in over 30 countries in Europe, North America and Asia.