T‑Systems is part of the Deutsche Telekom Group, with around 30.000 employees worldwide. We create technology with purpose to generate a positive impact on society. We are looking for curious talent, eager to learn, take on challenges, and contribute ideas that transform our customers’ experience.

We trust people: we offer autonomy, continuous support, and a collaborative environment where you can grow without limits. We are one global team, guided by respect, integrity, and a passion for doing better every day.

We are the responsible team within Deutsche Telekom technology to enable and drive Data Science & AI use cases. Our team is responsible for the GenAI platform and the implementation of high-priority AI projects. To maximize business value, these AI use cases must be integrated into operational systems. Therefor we are looking for an experienced Software Engineer to work with our AI Teams and establish best software engineering practices and help design scalable, robust architectures. This role offers exposure to cutting-edge GenAI technologies (e.g., multimodal AI, agentic AI) in a high-impact, scaled environment.

Responsibilities and Duties:

• Collaborate with AI/ML teams to help develop scalable, maintainable software solutions for AI-driven applications
• Establish best practices in software engineering, including architecture, modularization, and API management.
• Improve development workflows with TDD, DDD, GitOps, CI/CD, and automated testing.
• Work with containerization & orchestration tools (e.g. Docker, Kubernetes, Terraform, Helm).
• Enforce security by integrating with our Identity and Access Management.

Must-have requirements:

• Software Engineering Best Practices
  • Architectural patterns (e.g. SOLID, GRASP)
  • Modularization & packaging
  • API development & integration
• Development Workflows
  • Project structure & clean code principles
  • TDD (Test-Driven Development) & DDD (Domain-Driven Development)
  • GitOps (branching, merging, linting, CI/CD pipelines)
• Cloud & DevOps
  • Containerization and Orchestration with Docker and Kubernetes
  • Configuration scripting (Terraform, Helm, Bicep)
  • Cloud experience in at least one hyperscaler environment, GCP and Azure preferred
  • Authentication & IAM (OAuth2, security best practices)
  • Foundational knowledge of networking
• Tools & Languages
  • GitLab
  • Python
  • Experience in other languages is a plus

What do we offer you?  

Work environment & flexibility  

• International, dynamic and collaborative environment   
• T-Social: social initiatives (sports, community, health, ...)  
• Hybrid work model (remote/on-site)   
• Flexible working hours   

Growth & development  

• Customized training: access to Coursera to learn whatever you want, whenever you want  
• Weekly language classes (English & German)   
• International Mentoring Sessions & Experience Days  

Compensation & benefits  

• Flexible compensation plan (health insurance, meal vouchers, childcare, transport)   
• Telemedicine  
• Life and accident insurance   
• Social fund   

Wellbeing & time off  

• 26+ working days of vacation per year   
• Free access to specialist services (medical, legal, wellness)   
• 100% salary coverage during medical leave  

And many more advantages of being part of T-Systems!

If you are looking for a new challenge, do not hesitate to send us your CV! Please send CV in English. Join our team!

T-Systems Iberia will only process the CVs of candidates who meet the requirements specified for each offer.