Chief Catalyst, Systems Thinker & AI

*DON'T JUST BUILD SYSTEMS.

Build the future.
Hannes Lehmann

I help both established companies and startups build reliable, future-proof digital systems. For large organizations, I create scalable architectures that enable digital transformation. For startups, I set up complete technical foundations - from basic infrastructure to systems that impress investors. Explore my work, speaking engagements, and consulting services, or contact me about digital transformation and innovation projects.

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With over 20 years of experience transforming complex systems into elegant solutions, I serve as a bridge between enterprise vision and technical execution. As a certified MuleSoft developer and integration specialist, I've architected mission-critical systems for industry leaders

What sets me apart is my unique combination of deep technical knowledge and business acumen. I excel at:

  • Translating complex business requirements into scalable technical solutions
  • Building and leading high-performing development teams across borders
  • Driving innovation through rapid prototyping and proof-of-concepts
  • Optimizing systems for performance, cost, and maintainability

My approach is rooted in systems thinking and practical innovation. While others discuss possibilities, I build working prototypes. I bring a rare blend of strategic vision and hands-on expertise, whether I'm:

  • Architecting enterprise API ecosystems and driving API-first transformation strategies
  • Implementing modern integration patterns from monoliths to microservices
  • Designing resilient, event-driven architectures with focus on scalability and security

I'm particularly passionate about:

  • Creating frameworks that bridge traditional integration patterns with emerging AI capabilities
  • Building sustainable, scalable solutions that deliver real business value
  • Mentoring teams and sharing knowledge across organizations
  • Turning complex challenges into elegant, automated solutions
  • Bootstrapping robust technical foundations for startups to accelerate their growth

Currently focused on revolutionizing enterprise integration through AI-powered innovations while maintaining the robust reliability that mission-critical systems demand.

Ready to transform your technical challenges into opportunities? Let's connect and explore how my expertise in integration architecture, systems thinking, and innovation can drive your next success story.

Enterprise Architecture & Integration

Design and implementation of service-oriented architectures, API-first strategies, and complex system integration solutions that drive business value.

  • Enterprise Architectures (SOA, ESB and Event Driven)
  • API Design & Management
  • System Integration
  • Cloud Architecture vs Self hosted

Digital Transformation

Guiding organizations through digital evolution with scalable solutions and sustainable technology strategies.

  • Technology Strategy
  • Process Digitalization
  • AI and Automation
  • Innovation Management

Technology Leadership

Building and mentoring high-performance teams while fostering a culture of innovation and continuous improvement.

  • Bootstrap Startups
  • Team Development & Technical Direction (interim)
  • Mentoring, Coaching and Training
  • Innovation Culture

Requirements Engineering

Comprehensive requirements analysis and process automation to align technology solutions with business objectives.

  • Business Analysis
  • Process Optimization
  • Workshop Facilitation
  • Documentation

My Positions

since 8 years

CEO & Founder

sistemica GmbH • Germany

  • Founded and leading a technology consulting company
  • Specializing in service-oriented architectures and API lifecycle
  • Strategic technology consulting for enterprise clients
  • Building and leading high-performance teams
Enterprise Architecture API Design SOA Cloud Solutions Digital Transformation
since 2 years

CTO

devtech.pro • Germany

  • Head of AI, leading AI strategy and projects
  • Technical leadership and strategic direction
  • Architecture design and implementation
  • Team mentoring and development
Technical Leadership Architecture Design Team Development Technology Strategy

Projects

ai-tools.directory

ai-tools.directory

A comprehensive, auto-updating directory of AI tools and services. Running on autopilot, it continuously discovers, categorizes, and evaluates new AI tools, providing up-to-date insights for professionals and enthusiasts.

AI/ML Next.js TypeScript Web Scraping Automation
Gating AI
Work in Progress

Gating AI

A revolutionary new approach to artificial intelligence that replaces deep learning with shallow architecture using carry-over gates. This technology mimics brain mechanisms more closely and solves many limitations of current AI systems.

AI/ML PyTorch Python Blockchain Infrastructure
GeniePy

GeniePy

A SaaS starter template written in Python, batteries included. Spin up new products with minimal friction and effort within a day. Perfect for PoCs, MVPs, testing market fit but also running the final product!

Python FastAPI React Docker
mightclick.ai

mightclick.ai

A Chrome browser extension that gives you the power of AI within a mouse click. Leverage the latest AI models to enhance your productivity, creativity, and decision-making. Seamlessly integrate AI capabilities into your daily workflow.

AI/ML Chrome Extension React TypeScript
promatch.expert
Launch Planned

promatch.expert

An innovative AI-powered talent matching platform that uses value-based algorithms to connect companies with the perfect candidates. Our unique approach focuses on cultural fit and shared values for lasting professional relationships.

AI/ML Python React FastAPI PostgreSQL