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Tobias Weiß - DevOps Engineer & AI Infrastructure

Tobias Weiß
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Giessen, Germany

Experience

Jun 2025 - Present
10 months
Marburg, Germany

DevOps Engineer & AI Infrastructure

Philipps University Marburg

Expertise details
Position Summary
DevOps Engineer & AI Infrastructure at Philipps University Marburg
Industries
Education
Business Areas
Information Technology
  • Evaluating openDesk as MS365 alternative
  • Designing AI-optimized infrastructure
  • Kubernetes orchestration
  • Container security advisory
Jan 2024 - Present
2 years 3 months
Germany

Freelancer

graphwiz.ai

Expertise details
Position Summary
Freelancer at graphwiz.ai
Industries
Information Technology
Business Areas
Information Technology
Product Development
  • AI/XR integration startup
  • Developing AI tools with graph database backend
  • Product development and customer discovery
  • Implementing RAG, vLLM, MLOps pipelines for model serving and monitoring
Jan 2022 - Dec 2025
4 years
Giessen, Germany

Doctoral Researcher

JLU Gießen

Expertise details
Position Summary
Doctoral Researcher at JLU Gießen
Industries
Education
Information Technology
Business Areas
Research and Development
  • Consumer decisions in VR
  • Developing AI agents in virtual commerce
  • XR-AI integration
  • VR lab supervision
  • Published research
Jan 2015 - Dec 2020
6 years
Jena, Germany

M.Sc. & B.Sc. Information Systems

FSU Jena

Expertise details
Position Summary
M.Sc. & B.Sc. Information Systems at FSU Jena
Industries
Education
Business Areas
Information Technology
  • Specialization in Information Systems and Digitalization
  • Study abroad in Estonia and Sweden
Jan 2004 - Dec 2007
4 years
Rottweil, Germany

IT Management Assistant

Deutsche Telekom AG

Expertise details
Position Summary
IT Management Assistant at Deutsche Telekom AG
Industries
Telecommunication
Business Areas
Information Technology
Operations
  • IT administration
  • 2nd-level support
  • Managing large enterprise IT environments
  • Infrastructure operations

Industry Experience

See where this freelancer has spent most of their professional time.

Experienced in Education, Information Technology, and Telecommunication.

Education
Information Technology
Telecommunication
Profile match chart

Business Area Experience

See which departments and functions this freelancer has contributed to most.

Experienced in Information Technology, Research and Development, Operations, and Product Development.

Information Technology
Research and Development
Operations
Product Development
Profile match chart

Summary

DevOps Engineer & AI/ML Architect with XR integration.

As a specialist combining DevOps, AI/ML, and Extended Reality (XR), I bring a rare intersection of skills that bridges three typically separate disciplines:

DevOps: Kubernetes, CI/CD, sovereign stack, container security

AI/ML: Python, PyTorch, RAG, vLLM, MLOps, GenAI, Agentic AI, LangChain, open-source AI stack

XR: Unity, Unreal, WebXR, A-Frame, VR Lab supervision

Experience: SME, large organizations, public sector

Skills

  • Devops: Kubernetes, Docker, Ci/cd (Github Actions, Gitlab), Prometheus, Grafana, Terraform, Ansible, Gitops, Vault, Container Security, Sovereign Infrastructure

  • Ai/ml: Python, Pytorch, Rag, Vllm, Mlflow, Kubeflow, Mlops/llmops, Langchain, Langgraph, Neo4j, Vector Search, Prompt Engineering, Rag 2.0, Guardrails, Open-source Ai

  • Xr: Unity 3d, Unreal Engine 4/5, Webxr, A-frame, Three.js, Blender, Ai-xr Integration

  • Programming: Python, C#, Javascript/typescript, R, Sql (Postgresql, Mysql), Git/github/gitlab

  • Agentic Ai: Langchain, Langgraph, Agent Workflows, Llm Orchestration, Multi-agent Design, Prompt Engineering, Guardrails, Rag 2.0, Hybrid Retrieval, Reranking, Open-source Llms

  • Oss Ai Stack: Self-hosted Llm Serving (Vllm, Ollama), Vector Databases (Chroma, Weaviate, Qdrant), Open-source Models (Llama, Mistral), Local Embeddings, Enterprise Ai With Full Data Sovereignty

  • Devops Sovereignty: Self-hosted Infrastructure, Air-gapped Deployments, On-premise Kubernetes, Gitops With Vault, Container Security Scanning, Observability Stack, Zero-trust Networking

  • Devops Engineering Services: Kubernetes, Ci/cd, Cloud-agnostic Infrastructure, Sovereign Stack, Container Security, Monitoring

  • Ai/ml Engineering Services: Mlops Pipelines, Llm Deployment, Rag Systems, Multi-agent Ai, Enterprise Ai Security, Open-source Ai Stack

  • Xr Development Services: Unity/unreal Apps, Webxr, Ai-xr Integration, Xr Deployment

Languages

German
Native
English
Advanced
Swedish
Intermediate

Education

Oct 2022 - Jun 2025

JLU Gießen

Doctoral Researcher · Consumer decisions in VR, AI agents in virtual commerce, XR-AI integration · Giessen, Germany

Oct 2015 - Jun 2020

FSU Jena

M.Sc. & B.Sc. Information Systems · Information Systems · Jena, Germany

Oct 2004 - Jun 2007

Deutsche Telekom AG

IT Management Assistant · Rottweil, Germany

Statistics

Experience

Total positions 5
Experience in Education 10 y
Avg length 3 y 4 m
Longest experience 5 y 11 m

Global Experience

Countries worked in 1 (Germany)
Primary country Germany

Expertise

Recent roles DevOps Engineer & AI Infrastructure, Freelancer, Doctoral Researcher
Main industries Education, Information Technology, Telecommunication
Main business areas Information Technology, Research and Development, Operations

Qualifications

Highest degree Doctorate

Profile

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Frequently asked questions

Do you have questions? Here you can find further information.

Where is Tobias based?

Tobias is based in Giessen, Germany and can operate in on-site, hybrid, and remote work models.

What languages does Tobias speak?

Tobias speaks the following languages: German (Native), English (Advanced), Swedish (Intermediate).

How many years of experience does Tobias have?

Tobias has at least 14 years of experience. During this time, Tobias has worked in at least 5 different roles and for 5 different companies. The average length of individual experience is 3 years and 10 months. Note that Tobias may not have shared all experience and actually has more experience.

What roles would Tobias be best suited for?

Based on recent experience, Tobias would be well-suited for roles such as: DevOps Engineer & AI Infrastructure, Freelancer, Doctoral Researcher.

What is Tobias's latest experience?

Tobias's most recent position is DevOps Engineer & AI Infrastructure at Philipps University Marburg.

What companies has Tobias worked for in recent years?

In recent years, Tobias has worked for Philipps University Marburg, graphwiz.ai, and JLU Gießen.

Which industries is Tobias most experienced in?

Tobias is most experienced in industries like Education, Information Technology, and Telecommunication.

Which business areas is Tobias most experienced in?

Tobias is most experienced in business areas like Information Technology, Research and Development, and Operations. Tobias also has some experience in Product Development.

Which industries has Tobias worked in recently?

Tobias has recently worked in industries like Education and Information Technology.

Which business areas has Tobias worked in recently?

Tobias has recently worked in business areas like Research and Development, Information Technology, and Product Development.

What is Tobias's education?

Tobias holds a Doctorate in Consumer decisions in VR, AI agents in virtual commerce, XR-AI integration from JLU Gießen.

What is the availability of Tobias?

Tobias is immediately available full-time for suitable projects.

What is the rate of Tobias?

Tobias's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.

How to hire Tobias?

To hire Tobias, click the Meet button on the profile to request a meeting and discuss your project needs.

Average rates for similar positions

Rates are based on recent contracts and do not include FRATCH margin.

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Market avg: 976-1136 €
The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.
Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.

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