> Markdown version of [/jobs/ext/4678001-software-engineer](https://www.wearedevelopers.com/jobs/ext/4678001-software-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Software Engineer

- **Company:** Axpo Group
- **Location:** Madrid, Spain (Remote available)
- **Contract:** Permanent contract
- **Skills:** .NET Framework, Application Programming Interfaces (APIs), Algorithmic Trading, Microsoft Azure, C Sharp (Programming Language), Cloud Computing, Databases, Continuous Integration, DevOps, Distributed Systems, Monitoring of Systems, Python (Programming Language), Service Design, Istio, Grafana, Backend, Kubernetes, Terraform, Docker
- **Published:** November 12, 2026
- **Apply:** https://www.adzuna.es/details/5962366281

## About the Role

* Substantial experience (10+ years) in backend development, API/service design, and cloud technologies
 * Proficiency in .NET C# and/or Python, with a good grasp of algorithm efficiency
 * Experience with Azure, Docker, and Kubernetes, and a solid understanding of DevOps practices such as infrastructure as code and CI/CD
 * Ideally, previous experience in energy trading and risk projects
 * Strong understanding of authentication, authorization, and security best practices in distributed systems; familiarity with database management systems and monitoring tools such as Grafana is a plus
 * Experience guiding and mentoring technical teams, with a collaborative, ownership-driven mindset - even if you don't tick every box, we look forward to your application
 * Experience in trading systems or portfolio risk management tools is considered as a plus

## Description

We are looking for a Senior Software Engineer to take a leading role in developing, operating, and optimizing our Credit and Market Risk models and platforms. These business-critical platforms support the development, testing, configuration, orchestration, and management of models.

You'll bring strong backend and API/service design skills, experience with cloud technologies, and ideally knowledge of energy trading and risk. You'll work closely with the Product Owner, Risk department, and a cross-functional team of mathematicians and software engineers to shape the platform's architecture and technical direction. The team is supported by an operations team that provides first-line support.

What you will do:

 * Define and drive architectural decisions, ensuring scalability, robustness, and efficiency
 * Lead the design and development of pricing and risk management tools using .NET, Python, or R
 * Lead the design and implementation of backend services and APIs using .NET C# and/or Python
 * Oversee cloud infrastructure on Azure, including secure deployments with Kubernetes, Helm, and Service Mesh
 * Develop and manage infrastructure as code using Terraform, and maintain authentication and security measures
 * Partner with the Product Owner, the Risk department, and cross-functional teams to translate specifications into practical models, You'll join a team of highly skilled mathematicians and software engineers responsible for business-critical models, supported by an operations team. The team values close collaboration, mutual support, and diverse perspectives in shaping the platform's technical direction.