Senior Full Stack Developer (f/m/d)
Workload: 100%
We are looking for a Senior Software Developer with expertise in C# and Python to lead the evolution of our cloud-native platform Osiris. Osiris revolutionizes energy volume data invoicing, reducing manual intervention through scalable, well-designed, and tested methods. You will play a key role in both front-end development using React and back-end services in Python, with future migration to C#.
What you will do:
- Lead front-end development using React, ensuring high-quality and intuitive user interfaces.
- Oversee back-end development using Python (FastAPI) and C#, ensuring seamless integration.
- Design and develop an API-first microservices architecture for energy volume data invoicing.
- Collaborate with stakeholders to design scalable frameworks for invoicing and market calculations.
- Ensure code quality, testing, CI/CD pipelines, and follow best software development practices.
- Troubleshoot, resolve issues, and optimize performance of front-end and back-end systems.
What you bring & who you are:
- Degree in Computer Engineering, Software Development, or a related field.
- Experience in software development, with strong focus on React front-end development.
- Experience with back-end development in Python (FastAPI) or C# and cloud services like Azure.
- Familiarity with API-first architectures, microservices, and calculation frameworks.
- Strong understanding of CI/CD pipelines and willingness to mentor junior developers.
- Nice to have: Experience with Azure DevOps, Docker, Kubernetes.
About the team:
You will be part of a collaborative and cross-functional team, working to build a high-performance, scalable platform for energy data invoicing. The team values innovation, mentorship, and technical excellence, aiming to deliver cutting-edge software solutions across the European market.
- Department
- IT / Technology
- Role
- Permanent position
- Locations
- Madrid
- Remote status
- Hybrid Remote
- Employment type
- Full-time
3 numbers we're proud of:
Years of experience
Employees
Different job profiles
Workplace and culture - Benefit from a modern environment, good social security and flexible working hours.
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.
Your Benefits
-
Your choice
Axpo Iberia offers 23 days of paid leave to enjoy vacations during the year and a hybrid working model for all employees.
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Cultural exchange
We encourage close collaboration between countries by providing employees with free language lessons and periodic travel to our central office in Switzerland.
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Health care
As well as lunch vouchers and a discount on the nearby gym, we also provide private health and life insurance to each employee.
Madrid
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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.
Senior Full Stack Developer (f/m/d)
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