Senior Software Engineer – f/m/d

Axpo Group

. Define and drive architectural decisions, ensuring scalability, robustness, and efficiency .

Posted 11/11/2026full-timeMadrid • SpainSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates extensive expertise in backend development, API design, and cloud technologies, with a strong focus on .NET C#, Python, and Azure. Proven ability to lead architectural decisions and mentor technical teams while ensuring security and efficiency in distributed systems.

Highest-signal resume keywords

Backend DevelopmentAPI/Service DesignAzure Cloud InfrastructureInfrastructure As CodeAuthentication And Security Best Practices

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Applicant Tracking System Keywords

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Hard Skills

.NET C#PythonKubernetesTerraformDockerAlgorithm EfficiencyCI/CDDatabase Management SystemsMonitoring ToolsRisk Management Tools

Soft Skills

Team LeadershipMentoringCollaboration

Tools & Technologies

AzureKubernetesHelmService MeshGrafana

Industry Keywords

Energy TradingRisk ManagementDistributed Systems

Tech Stack

Tools & technologies

AzureCloudDistributed SystemsDockerGrafanaKubernetesPythonTerraform.NET

About the role

Key responsibilities & impact

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 Azure cloud infrastructure, including secure deployments with Kubernetes, Helm, and Service Mesh
Develop and manage infrastructure as code using Terraform
Maintain authentication and security measures
Partner with the Product Owner, Risk department, mathematicians, software engineers, and cross-functional teams to translate specifications into practical models
Work with the operations team providing first-line support

Requirements

What you’ll need

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
Solid understanding of DevOps practices, including 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
Experience in trading systems or portfolio risk management tools is a plus

Benefits

Comp & perks

Flexible working hours
Hybrid work: part of the time remotely and the rest at the Madrid offices
Meal allowances, with the option to use them for public transportation or childcare
Home internet cost compensation
Industry-specific training courses and learning channel
90% gym coverage at Forus Selection
Comprehensive health insurance, with the option to extend coverage to spouse and children