Tomas Stiller
Co-Founder & CTO
Experience
Co-Founder & CTO
Printkiss GmbH & Co. KG
- Agile app development and product ownership in e-commerce
- Feature planning and creating user stories
- Organizing external freelancers (cross-functional teams)
- Backend and frontend development
- Story mapping
- Backlog management
- Roadmap planning
- Budget control and capacity planning
Co-Founder & CTO
Wunderkarten GmbH
- Designing and operating a scalable AWS infrastructure (EC2, ALB, RDS, S3, EFS, IAM, CloudFront)
- Developing a custom PHP-based e-commerce system including a real-time card designer (Vanilla JavaScript)
- Building and leading an 11-person development team using agile methods
- Introducing DevOps automation (Jenkins, CI/CD pipelines) and improving deployment reliability
- Responsible for SEO strategy and website performance optimization
Founder & Consultant
Stillforward GmbH
Building and operating a Kubernetes-based internal developer platform for over 25 AWS EKS clusters
Developing Crossplane compositions and composition functions in Golang
Managing secure rollouts of new Kubernetes APIs with release coordination and a testing strategy
Implementing secure RBAC models and policy enforcement with Gatekeeper and Rego
Providing second-level support and platform tooling for internal teams
Conducting knowledge-sharing sessions (e.g., SIG moderation, platform onboarding)
Developing an AI infrastructure prototype with LangChain, Flowise, Terraform, and AWS EKS
Implementing retrieval-augmented generation (RAG) pipelines with private LLMs and vector databases
Completed a professional course in AI agent design and orchestration (LangChain & LLMs, 2025)
Conducting internal workshops and knowledge transfers on AI tooling and architectural fundamentals
Industry Experience
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Experienced in Information Technology and Retail.
Business Area Experience
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Experienced in Information Technology, Product Development, Research and Development, Project Management, and Marketing.
Summary
Over 15 years of experience building scalable cloud platforms and leading tech-driven companies. As a founder and consultant, I helped businesses modernize their infrastructure, establish a DevOps culture, and integrate AI-powered solutions. Successes with AWS, Kubernetes, Golang, and AI agent platforms across transport, e-commerce, and platform engineering.
I specialize in building AI-driven systems that deliver real value. From custom LLM workflows and agent infrastructures to retrieval-based architectures, I turn AI from a buzzword into working solutions. My strength lies in combining deep cloud expertise (AWS, Kubernetes, Golang) with hands-on AI implementation to create scalable, intelligent platforms. I also design, develop, and operate these platforms while sharing my knowledge about them.
Skills
- Ai Platforms & Tools: Flowise, Langchain, Hugging Face, Ollama, Openai
- Cloud: Aws (Eks, Ec2, S3, Iam, Route53, Rds, Cloudfront)
- Kubernetes & Gitops: Argocd, Helm, Karpenter, Crossplane
- Iac & Devops: Gitlab Ci/cd, Docker, Terraform, Linux
- Programming: Golang, Typescript, Python, Php
- Ai Infrastructure Engineering
- Developer Enablement & Ai Onboarding Workshops
- Retrieval-augmented Generation
- Lean Ai Prototyping & Mvp Development
- Technical Leadership Of Platform Projects
- Integration Of Ai Agents Into Cloud-native Applications
- Ux-centered Ai Tools & Prompt Design
- Lean Ux & Ux Research
- Startup Execution & Product-market Fit For Ai Tools
- Cloud-native Architecture With Aws, Kubernetes & Golang
- Platform Engineering With Gitops & Crossplane
- Secure Api Design With Rbac, Gatekeeper, Rego Policies
- Fullstack Web Development: React, Angular, Typescript, Html/css
- Strategic Thinking With A Strong Sense For Ai Systems
- Practical Leadership With An Engineering-first Mindset
- Clear, Technical Communication Across Disciplines
- Problem Solving Through Experimentation And Iterative Approaches
- Driven By Curiosity, Autonomy, And The Desire For Tangible Impact
Languages
Education
Karlsruhe Institute of Technology (KIT), University of Karlsruhe (TH)
Diploma in Computer Science · Computer Science · Karlsruhe, Germany
Certifications & licenses
AI Agents: LangChain & LLM Apps
AI For Everyone
Coursera
MS Certified: Azure AI Fundamentals
ArgoCD Essentials
Udemy
Certified Kubernetes Administrator
Linux
Node JS - The Complete Guide
Udemy
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