Software Engineer (f/m/d)

Axpo Group; Madrid; Hybrid; EUR 65,000 - 90,000; Full time

Benefits offered by this job

Meal allowances

Internet compensation

Training courses

Gym coverage

Health insurance

Flexible working hours

Hybrid work in Madrid

Job summary

Axpo Group is seeking a Software Engineer to join a cross-functional team in Madrid. You will design, develop, and improve backend services across the full software lifecycle, with a strong focus on scalable, secure systems.

You will collaborate with product and tech leads, drive architectural decisions, and contribute to deployment pipelines and tooling using .NET/C#, Azure, Docker, and Kubernetes. Fluency in English is required.

Qualifications

• Backend focus with API/service design experience.
• 5+ years of backend experience ideal.
• Strong grasp of security for distributed systems and CI/CD.

Responsibilities

• Design, build, and maintain backend services and APIs using .NET/C#.
• Operate cloud infrastructure on Azure with Kubernetes and Helm.
• Implement infrastructure as code and security best practices.

Skills

Backend development

API design

Cloud platforms

Distributed systems

Code quality

English communication

Education

Bachelor’s or Master’s in Computer Science or Software Engineering

Tools

Docker

Kubernetes

Azure

Grafana

Databricks

Job description

Help us build scalable, secure, high-quality software that powers Axpo’s platforms. As a Software Engineer, you’ll design, develop, and improve our products across the full software lifecycle. If you enjoy backend development, cloud technologies, and solving real technical challenges, we’d love to hear from you.

Join a cross-functional team of engineers, product specialists, and stakeholders. Working closely with the Product Owner and technical leads, you’ll deliver features, improve systems, and help shape the platform’s evolution—while growing your expertise, taking ownership of key components, and creating business value through technology.

What You Will Do

• Help implement architectural decisions that ensure scalability, robustness, and efficiency.
• Contribute to tooling and products using .NET programming languages and libraries.
• Design, build, and maintain backend services and APIs using .NET / C#.
• Support and help operate cloud infrastructure on Azure, including efficient and secure deployments with Kubernetes, Helm, and Service Mesh.
• Develop and maintain infrastructure as code using Terraform.
• Implement and maintain robust authentication and security measures across the platform, following security best practices for distributed systems.
• Collaborate with technical leads to align technical solutions with business priorities, and work with cross-functional teams to ensure seamless integration of platform features.
• Apply software engineering best practices, including clean code, unit testing, and CI/CD.
• Evaluate and implement tools, frameworks, and technologies that improve the platform and processes.
• Promote best practices in code quality, testing, security, and operational excellence.
• Experience in trading systems or portfolio risk management tools is considered as a plus.

What You Bring And Who You Are

• A Bachelor’s or Master’s degree in Computer Science or Software Engineering.
• Substantial experience in backend development, API/service design, and cloud technologies; 5+ years of experience is ideal.
• Proficiency in .NET C# and a good grasp of algorithm efficiency.
• Experience with Azure and technologies such as Docker and Kubernetes.
• A good understanding of DevOps practices, including infrastructure as code, automation, and CI/CD.
• A strong understanding of authentication, authorization, and security best practices in distributed systems.
• Ideally, experience with the Databricks platform or a similar platform, and with logging and monitoring tools such as Grafana or equivalent solutions.
• The ability to work with limited guidance and support from senior team members, make decisions, and solve problems in complex environments.
• An analytical mindset, attention to detail, and a proactive approach to problem-solving.
• A collaborative, flexible, and team-oriented attitude, with a strong sense of ownership and accountability.
• Strong communication skills, including the ability to explain technical concepts in business terms and communicate concisely and effectively, in writing and verbally, with stakeholders from diverse backgrounds and at different levels.
• A willingness to lead by example, act as a role model, learn, and stay up to date with emerging technologies.
• Fluent English.

About The Team

You’ll join a cross-functional team of engineers, product specialists, and stakeholders who value collaboration, ownership, and continuous improvement. We support each other, share knowledge openly, and welcome diverse perspectives and backgrounds. Together, we work to deliver business value through technology and shape scalable, reliable, and high-quality platform solutions.

Benefits:

At our company, we strive to create a culture of continuous learning, personal growth, and inter- national community involvement. We're passionate about providing our employees with the tools and resources they need to succeed, and we're confident that you'll love being part of our team!

• Working Hours We offer flexible working hours to accommodate your work schedule. We can work part of our time remotely and the rest at our offices in Madrid, Torre Europa.
• Meal allowances

You can enjoy delicious meals on us, no matter if you are working remotely or on-site.

• Option to use it for public transportation or childcare instead.
• Internet Compensation We cover the cost of your home internet connection, as we understand how essential connectivity is in the modern workplace.
• Training courses Our company is committed to helping our employees grow and develop their skills, which is why we offer a variety of industry- specific training courses and a learning channel.
• Gym Coverage Stay active and healthy with our 90% coverage benefit, which provides access to the nearby gym: Forus Selection to keep you energized throughout the day
• Health Insurance We take the health and well-being of our employees seriously, which is why we offer a comprehensive health insurance plan and the option to extend it to your spouse and children.

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.