Digital & Technology Partner

Karl Kornwolf

Trusted sparrings partner to CEOs, CIOs, owners, family enterprises and PE firms — hands-on, board-grade, available without long-term overhead, instead extensive consultancy projects or just complementing those. Specialist in IoT platforms, cloud and legacy transformation, and agentic AI for customer and partner interaction, property management and energy sector.

"Partly grown up in Saudi Arabia, I learned that the world can be very different and beautiful — even when we don't yet know or understand it."

Recommendations

Trusted by leaders
who have seen the work up close.

Full recommendations on LinkedIn. Statements from clients, principals and colleagues across 25 years.

Karl gehört für mich zu der Gruppe von Leuten, die in jedem Gespräch bleibende Eindrücke hinterlassen und “Food for thought” erzeugen. Er engagiert sich für das Unternehmen, für die Mannschaft und für diejenigen, die etwas schwächere Startbedingungen als andere haben. Eine seiner herausragendsten Fähigkeiten ist es, Menschen für eine wichtige und gute Sache zu begeistern.
Karl focuses very strongly on success factors, both for business models and personnel. Communicates clearly, fits well in teams — often leading them — and demonstrates empathy for personnel. A great person to have on your side.
I have worked nearly 10 years intensively with Karl across three client mandates — DAX, PE-backed Telco, and Mittelstand MedTech. My promise to our clients was always: if Karl takes responsibility for a task, you can be sure it gets done. He is an outstanding achiever. Despite being an experienced executive, he was always open to advice and very interested in an outside-in view.
Thomas Zinnöcker formerly CEO, ista SE — one of Germany’s leading energy & property services companies Worked with Karl as CIO, ista International GmbH
Ed Kozel formerly Chief Technology & Innovation Officer (CTIO), Deutsche Telekom AG Board — Napa Valley, California Karl’s principal as SVP & Corporate Director IT, Deutsche Telekom
Rainer Nagel CEO & Co-Founder, Atreus GmbH — A Heidrick & Struggles Company #1 Executive Interim Management firm in GermanyPlaced Karl in multiple C-level interim mandates (COO, CTO, CEO, CRO)

Who I Serve

Three options.
One principle: substance over overhead.

I work with decision-makers who need a trusted technology and organizational mind — without the complexity of a permanent hire, or who need someone who has genuinely done it at scale.

CEOs & Top CIOs

Strategic Sparring Partner

You’re driving a transformation — IoT platform build, property legacy system overhaul, cloud migration, or agentic AI rollout, team development — and need a second opinion from someone who has operated at the same altitude, without institutional overhead.

Owners & Family Offices

Trusted Technology Advisor

Hidden Champions and Mittelstand leaders — in IT management, property and energy services, industrial automation — who want to become more digital, resilient and international. Discreet, long-horizon partnership.

Private Equity

Operating & Value-Creation Partner

Interim CIO / CTO / COO mandates, technology due diligence, legacy system transformation and post-acquisition platform builds. Board-grade reporting. Munich · Frankfurt · Dubai · Singapore.

Digital StrategyAI ReadinessTech Due DiligenceIoT Platform
MittelstandIndustry 4.0Board / BeiratProperty Tech
Value CreationTurnaroundPlatform ScalingLegacy Transformation
IoT Platform Property Management Platform Property Management Services Smart Metering Cloud Transformation Legacy System Transformation Agentic Customer Interaction Agentic Partner Interaction AI-native Software Delivery Industry 4.0 Energy Services Tech Interim CIO Interim CTO Interim COO DevOps API-first Architecture Microservices Mittelstand Digitalization M&A Technology Carve-out & PMI

Career

A record built in the field,
not on slides.

Every role hands-on. Full details and case studies available on request.

2022 → present
Energy Services
Digital PlatformGermany · Portugal
Techem X GmbH
Managing Director, Digital Platform
  • Leading a multi-brand IoT and property management platform at scale: 17 countries, hundreds of applications, thousands of field-service partners — core infrastructure for smart metering and property services across Europe.
  • Built a data and AI strategy monetizing billions of annual IoT transactions from 13 million European homes — converting sensor data into AI-driven revenue streams including predictive heat-chain monitoring and automated billing.
  • Operates the world's largest cloud-native IoT sub-metering platform (~65m connected devices) on a global hyperscaler, with a market-leading cybersecurity posture.
  • Established an AI-driven nearshore engineering hub in Southern Europe (BOT model); migrated software delivery to AI-native tooling, accelerating engineering velocity and reducing cost-per-feature.
  • Pioneering agentic AI for customer and partner interaction — automating complex multi-step service workflows across thousands of field-service partners.
2019 – 2022
Energy ServicesGermany · Poland · Spain
ista International GmbH
Chief Information Officer (CIO)
  • Built a scalable property management and energy services platform from the ground up: 20-country operations, hundreds of applications, thousands of workstations and field partners.
  • Led a full legacy system transformation: API-first, cloud-native architecture on major hyperscalers — decommissioning core legacy systems while maintaining continuity across 20 countries.
  • Stood up DevOps teams and a DORA-aligned CI/CD platform; built a new engineering hub in Spain (80+ hires, ~30% team growth in 24 months).
  • Applied automation and machine learning to core billing and service processes — a replicable model for property management platform modernization.
2016 – 2018
Industrial TechnologyGermany · USA · India
Siemens AG — Digital Grid
Digital Business Development & Head of Strategy
  • Led JV performance and acquisition of an IT/OT services integrator within a major industrial joint venture — ~€50m revenue, 260 employees.
  • Rebuilt a legacy metering platform into a scalable industrial IoT platform — a foundational pivot from hardware product to cloud-native platform business.
  • Established technology innovation labs for PoCs in energy efficiency, decentralized energy, microgrids, and predictive maintenance; built an IT/OT ecosystem in Silicon Valley via a leading US accelerator and corporate venture fund.
2011 – 2014
Global TelcoGermany
Deutsche Telekom AG
Senior Vice President & Corporate Director IT
  • Board-level scope: 800 direct reports, 8,500 total staff across Group IT — full transformation and operations mandate.
  • Grew a Silicon Valley startup ecosystem; launched a B2C SaaS mobile-learning venture as a JV with Germany's leading technical universities.
  • Restructured innovation units and Group IT in partnership with the works council; designed a new executive leadership program with two leading international business schools.
2006 – 2011
Interim
X-LevelGermany
K-Track GmbH / Atreus
COO / CTO / CEO Mandates — IT Services · Telecoms · Cable · MedTech
  • COO, Global Telco (1 yr): Products & Innovation unit. Chief Product Owner of a large-scale agile transformation; new business models, venturing, lean-organization restructuring.
  • CEO, MedTech Global Market Leader (1 yr): ~€100m revenue, 900 staff. Re-financing, risk mitigation, portfolio repositioning, operative management of European units.
  • COO/CTO, Listed CATV Operator (2.5 yrs): ~€220m revenue. Material valuation uplift; banking consortium re-financing; fiber infrastructure build; full IT consolidation and outsourcing.
Full mandate details & case studies available on request
Earlier
VP Global Accounts & Deputy Head of Sales · VP Business Excellence & IT Strategy
Siemens AG / BenQ Mobile GmbH — Germany & Taiwan
2001–2006
Senior Consultant, CRM & Business Re-engineering
CSC Ploenzke AG — Germany
1997–2001

Expertise

What I bring
to the table.

Hands-on experience across each area. Complementary advisory.

01 · IoT & Cloud

IoT Platform & Cloud Transformation

End-to-end IoT platform design and operation at scale — smart metering, property management systems, and industrial IoT. Cloud-native architecture on global hyperscalers, legacy system transformation, API-first design, microservices, and real-time data pipelines processing billions of events annually.

02 · AI & Agentic Systems

Agentic AI: Customer & Partner Interaction

Practical deployment of generative and agentic AI in production — not pilots. Agentic customer interaction (automated service flows, intelligent billing, multi-channel), agentic partner interaction (field-service orchestration, portal automation), and AI-native software delivery across international engineering organizations.

03 · Corporate Development

M&A, JVs & Technology Due Diligence

Joint-venture leadership, subsidiary build-up, post-merger integration and carve-outs across Europe, the US and Asia. Technology due diligence for PE and strategic investors in building technology, energy services, and industrial tech. Corporate venture experience in Silicon Valley.

04 · Turnaround & Organization

Value Creation, Restructuring & Operating Model

Re-financing, valuation uplift, cost-out and margin expansion. Full P&L at significant scale. Building international DevOps organizations with near- and off-shoring hubs in Southern and Eastern Europe. Experienced with banking consortia, supervisory boards, works councils, and investor-grade reporting.

Beyond the Mandate

Values-driven,
since 2012.

Technology leadership without a sense of responsibility is not sustainable. People are making the difference. Always.

Good Work Foundation
Advisor & Coach · South Africa · since 2012

World-class education for rural Africa. Co-launched the "Open Academy" with Stanford University; scaled from 350 to ~10,000 learners per week. Applying the same platform-thinking used in enterprise IoT to educational access — a decade of commitment to equity through technology.

goodworkfoundation.org →
ICF München
Mentor · Young Professionals

Mentoring young professionals navigating career transitions and leadership challenges — investing in the next generation, not only in technical competence but in character and resilience. Based in Munich, connected globally.

icf-muenchen.de →

Contact

Let's talk.
No slides required.

I work best with people who value directness, substance, and a long-term perspective. If that fits — reach out. I respond personally.

Based Greater Munich, Germany Operating internationally — Munich · Frankfurt · Dubai · Singapore

I respond personally, typically within 24 hours. All conversations are treated as confidential.