About Us
We partner with engineering teams to transform complex challenges into structured, traceable, and verifiable solutions using modern engineering methodologies.
About Us
We partner with engineering teams to transform complex challenges into structured, traceable, and verifiable solutions using modern engineering methodologies.
ABOUT KREXX
Engineering Discipline For Complex Decisions.
KREXX was created to help engineering teams work with more clarity, structure, and confidence. We believe complex engineering problems require more than isolated expertise — they require systems thinking, technical discipline, clear communication, and evidence-based decision-making.
OUR MISSION
WHAT WE COMBINE
"To Make Complex Engineering Easier To Understand, Prove, And Improve."
[01] Systems Engineering
[02] Model-Based Thinking
[03] Simulation Strategy
[04] Digital Twin Development
[05] Practical Training
[06] Technical Decision Support
[01] Systems Engineering
[02] Model-Based Thinking
[03] Simulation Strategy
[04] Digital Twin Development
[05] Practical Training
[06] Technical Decision Support
Built on Standards. Driven by Models. Proven by Results.
We follow globally recognized standards and MBSE best practices to deliver complex
systems that are reliable, safe, and future-ready.
ARCEP/CSEP-aligned systems engineering ensuring disciplined lifecycle and systems-of-systems practices.
Standardized processes managing complete system lifecycle activities efficiently and consistently.
Requirements reviewed across architecture, design, verification and validation phases always.
Define system structures, interfaces, behaviours, and interconnections using certified tools.
Links stakeholder needs, requirements, designs, tests, ensuring complete end-to-end traceability.
Ensures seamless model exchange and co-simulation across diverse engineering tools reliably.
Validates models through reviews, analysis, simulations, and real-world evidence consistently.
Maintains continuous traceability connecting requirements, designs, tests, operations, and lifecycle artifacts.
Integrates functional safety, fault-detection, cybersecurity and application domains require compliance.
Uses best-fit engineering tools, avoiding dependence on single vendor ecosystems unnecessarily.
Our approach ensures traceable, verifiable, and adaptable systems that perform in the real world.
What A KREXX Engagement Can Produce
A serious engineering engagement should leave behind decision-grade artifacts, not only slides.
The Minds Behind The Method
A multidisciplinary board of systems architects, simulation pioneers, and operations directors coordinating mission-critical engineering pipelines worldwide.
Yash Vaibhav Tatiya
Co-Founder
Yash Tatiya is a technology entrepreneur and engineering leader with 5+ years of experience delivering complex technology solutions and building high-performance engineering teams. He leads the development team, with expertise in technical and application architecture, cloud computing, AI and software engineering. His academic background spans Artificial Intelligence, Software Engineering, Cloud Computing and International Business, bringing a strong blend of technology, architecture and business strategy to Krexx.
Thomas Krößwang-Ridler
MBSE & Model-Based Engineering Advisor
Thomas Krößwang-Ridler, MSc., is a practitioner of Model-Based Systems Engineering, Model-Based Software and Control Design with 13+ years of industry experience. He has led energy-management and control-design platforms and, at Fronius International, established MBSE foundations, toolchains and methodologies. He holds an MSc. in Automation Engineering, OCSMP Fundamental Model Builder certification, two control-engineering patents and is a member INCOSE.
Prof. Dr. Christina Toigo
Battery & Energy Storage Advisor
Prof. Dr. Christina Toigo is Professor of Energy Storage and Scientific Director of the Technology Centre for Energy at Landshut University of Applied Sciences. Her expertise spans lithium-ion and sodium-ion batteries, sustainable energy storage and hydrogen technologies. She combines applied research, technology development and industry collaboration, with leadership across national and European energy-storage research programs, advancing transition.
Dr. Thomas H. Madden
Digital Engineering & Digital Twin Advisor
Dr. Thomas H. Madden is an engineering executive and technology advisor with 30+ years of experience across advanced energy, manufacturing and industrial technologies. He has led product development, technology scale-up, fundraising, acquisitions and complex R&D programs spanning batteries, fuel cells, advanced manufacturing and digital engineering. He currently leads advanced manufacturing programs at CCAT focused on model-based engineering, systems.
Vladimir Greavu
Strategy & Growth Advisor
Berlin-based entrepreneur and strategic advisor with 18+ years of enterprise leadership experience. As Partner Director DACH at Druid AI, Vladimir builds strategic partnerships and market access for AI-driven solutions across Europe. His expertise spans operations transformation, enterprise GTM and organizational scaling. Founder of two companies, author of Good Leader, Bad Leader and founder of Tweakademy, he advises on B2B scaling, transformation.
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We combine consulting, digital engineering, and workforce development into one integrated engineering ecosystem.
