Software Engineer AI - Senior Expert (m/w/d)

About Deutsche Telekom IT GmbH

The Telekom IT is an integral part of Deutsche Telekom. With 9,500 IT specialists in seven countries, we simplify, digitize, and accelerate processes within our large corporation.

In an era of technological change, our focus is shifting from internal services towards a cloud-based infrastructure. Agile spirit of a start-up and established professionalism of a DAX-40 company – impossible? Not at all! We break down old structures. We pursue holistic, integrated solutions and can react flexibly to customer wishes and market demands. We work in agile structures, flat hierarchies, and in a culture of trust with short decision-making paths. This creates ample room for development and advancement. Become part of an innovative team that is collectively changing the telecommunications market.

Responsibilities

As a Software Engineer AI - Senior Expert (m/f/d), you will be responsible for the further development of software for highly complex products and services, taking into account holistic business requirements and implications throughout the entire development process (lifecycle).

You will build products and platforms with our global engineering that are built once and scaled everywhere – with a clear focus on customer impact and reusability. AI First is not a buzzword here, but a working principle.

Your key responsibilities also include:

• You will work closely with requesters (e.g., Product Owners) in analyzing and implementing requirements, and will also provide consulting at management level.
• You will create software solution designs and document them.
• You will define standards for system tests/test automation and take over the installation and configuration of software for complex products and services.
• You will support team members during error analysis up to error correction and also provide technical support for other teams for the products and services managed.
• You will work closely with other teams in an international environment and lead projects of strategic relevance.

Profile

You are characterized by detailed company-specific knowledge or exceptional specialized knowledge and skills:

• Many years of practical experience in AI/ML Engineering or MLOps/Platform Engineering – with demonstrably productive deliveries.
• Outstanding practical engineering skills in Python, JVM/Node with AI Libs, Containers/K8s, CI/CD, Testing, Observability, among others.
• Extensive AI tooling skills in LLMs for Prompting, RAG, Finetuning, Embedding/Vector DBs, Evaluation, Guardrails.
• Practical experience in clouds like AWS/Azure/GCP in e.g., Bedrock/SageMaker, Azure AI Studio, Vertex AI, including Security/Networking Basics.
• Experience with Data Fundamentals such as data models, feature pipelines, governance (PII, Model Cards), and cost awareness in application.
• Extensive experience with Agentic AI and frameworks like Ray, LangChain/LlamaIndex or Hugging Face; profound knowledge in the productive operation of models (on-premises and in cloud environments) – including deployment, scaling, monitoring, and security.
• Potentially certifications (Azure AI Engineer, AWS AI Practitioner/ML, Google GenAI/Gemini).
• Very good German & English skills (DE/EN min. C1).

This position is also possible on a part-time basis. Severely disabled individuals will be given preferential consideration in case of equal suitability.