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Martin Rusnak - Interim CTO

Martin Rusnak
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Poing, Germany

Experience

Oct 2025 - Present
6 months
Munich, Germany
Remote

TECH DUE DILIGENCE FOR PE, VC & FAMILY OFFICES (UNDER NDA) – AI STRATEGY

PE, VC & family office portfolio companies (confidential, under NDA)

Expertise details
Position Summary
TECH DUE DILIGENCE FOR PE, VC & FAMILY OFFICES (UNDER NDA) – AI STRATEGY at PE, VC & family office portfolio companies (confidential, under NDA)
Industries
Professional Services
Business Areas
Information Technology
Strategy

Two parallel workstreams: (1) Tech due diligence for acquisitions and portfolio companies. (2) AI strategy certification and AI governance consulting.

  • Tech assessments for PE/VC acquisitions: code reviews, architecture analysis, scalability evaluation

  • Tech assessment frameworks and integration roadmaps for portfolio companies

  • TÜV SÜD certification program: AI governance, EU AI regulation (EU AI Act)

  • Strategic AI roadmap development for mid-market companies

  • Delivered several tech DD reports for investment decisions

  • Developed integration roadmaps for portfolio companies

  • TÜV SÜD 'AI Strategy & Application Expert' (expected 04/2026)

Dec 2024 - Oct 2025
11 months
Rengsdorf, Germany

Interim CTO

Berge & Meer Touristik GmbH

Expertise details
Position Summary
Interim CTO at Berge & Meer Touristik GmbH
Industries
Tourism
Business Areas
Business Intelligence
Information Technology
Project Management
  • ERP migration (Microsoft Business Central) as the core transformation project – planning, managing, and executing to harmonize processes and system landscapes.

  • Detailed IT cost analysis followed by developing a sustainable action plan to reduce run, grow, and transform costs.

  • Building a scalable IT organization with clear structures and targeted recruitment of key roles for long-term stabilization.

  • AI and IT strategy development – collaborating with the team to develop an AI-first strategy (3-year plan) and an aligned IT and data strategy to drive digitalization and innovation.

  • Successfully restructured the IT setup and sustainably stabilized critical processes.

  • Future-proofed the data & BI area – advanced the BI team, designed a modern DWH architecture (MS Fabric, AI) with the team, and defined the data strategy for the new build.

  • Visibly drove digital transformation – successfully established two strategic projects across the organization.

Sep 2024 - Nov 2024
3 months
Karlsruhe, Germany

Tech Advisor & CTO Mentor

Quantrefy GmbH

Expertise details
Position Summary
Tech Advisor & CTO Mentor at Quantrefy GmbH
Industries
Information Technology
Business Areas
Human Resources
Information Technology
Product Development
  • Mentoring the internal CTO and advising on efficient team building, system architecture transformation, and IT security to enable scalable growth.
  • Supporting the tech leadership team in recruiting key roles and aligning team structures and processes to shorten time-to-market and foster strategic product development.
Oct 2023 - Jul 2024
10 months
Berlin, Germany

Interim CTO

movingimage EVP GmbH

Expertise details
Position Summary
Interim CTO at movingimage EVP GmbH
Industries
Information Technology
Business Areas
Information Technology
Product Development
Project Management
  • Ensuring a stable, compliant, and secure video platform (AWS) with high reliability and performance.

  • Stabilizing the engineering team and introducing agile practices to promote best practices and efficient product development.

  • Introducing and implementing the OKR framework to align company-wide goals, boost team satisfaction, and support company growth.

  • Leading the technology and innovation strategy in close alignment with business objectives – building a product-focused organization with clear customer focus.

  • Building a high-performing tech leadership team: establishing strong leadership roles in product, infrastructure & security, and engineering to ensure long-term stability and strategic direction.

  • Successfully completing five IT security certifications (ISO 27001, TISAX): demonstrating robust compliance processes and strengthening movingimage's position as a reliable, audit-ready SaaS provider.

Aug 2023 - Oct 2023
3 months
Munich, Germany

Management Consultant / Program Manager for PCI DSS Audit

Rubean AG

Expertise details
Position Summary
Management Consultant / Program Manager for PCI DSS Audit at Rubean AG
Industries
Information Technology
Professional Services
Business Areas
Audit
Information Technology
Project Management
  • Conducting a comprehensive gap analysis to prepare for the PCI DSS 4.0 audit.

  • Creating a detailed project plan, ensuring C-level alignment, and securing budget approval.

  • Overall responsibility for the program, including developing IT security policies and implementing new processes.

  • Regular coordination with the PCI auditor and ongoing support for the organization throughout the audit process.

  • Successful PCI DSS 4.0 audit: achieved certification under the new PCI DSS 4.0 standards.

Apr 2023 - Jul 2023
4 months
Munich, Germany

Interim CTO

Smartify IT Solutions GmbH

Expertise details
Position Summary
Interim CTO at Smartify IT Solutions GmbH
Industries
Healthcare
Information Technology
Business Areas
Information Technology
  • Delivered a comprehensive operational concept (18 modules in total).

  • Accelerated delivery in a powerful Kubernetes and DevOps landscape.

  • Ensured data integrity of highly sensitive patient data.

  • Transformed into a reliable, fast, and easily maintainable AWS environment.

  • Reduced software development time by 100%.

  • Significantly reduced error rates through intelligent use of cloud services.

May 2022 - Mar 2023
11 months
Stuttgart, Germany

Interim CTO / C-Level Sparring

Onventis GmbH

Expertise details
Position Summary
Interim CTO / C-Level Sparring at Onventis GmbH
Industries
Information Technology
Business Areas
Information Technology
Product Development
Project Management
  • Led the technology division with 60+ employees (software development, IT, SRE, security, architecture).
  • Conducted product and technology due diligence for strategic investors.
  • Improved performance and stabilized the Onventis Buyer Platform.
  • Implemented a multi-cloud strategy (private cloud, MS Azure, AWS).
  • Introduced agile portfolio and program management.
  • Migrated from a monolithic architecture to a cloud-native model (Azure).
  • Rolled out OKRs across the organization.
Aug 2021 - Jan 2022
6 months
Munich, Germany

Interim Director of Technology

Temedica GmbH

Expertise details
Position Summary
Interim Director of Technology at Temedica GmbH
Industries
Healthcare
Business Areas
Information Technology
Product Development
Quality Assurance
  • Expanded and led the software development teams.

  • Managed the infrastructure team.

  • Developed the roadmap for the technical strategy of new products.

  • Built high-performance squads.

  • Acted as a catalyst for recruitment.

  • Doubled the development teams within 4 months.

  • Stabilized team structures.

  • Improved team spirit by optimizing communication across all levels.

  • Supported the complex ISO 13485 (SaMD) audit certification.

Nov 2020 - Apr 2021
6 months
Slovakia

Fractional CTO - FinTech

Areto Payment Processing

Expertise details
Position Summary
Fractional CTO - FinTech at Areto Payment Processing
Industries
Banking and Finance
Information Technology
Business Areas
Information Technology
Project Management
Quality Assurance
  • Built the core team.

  • Defined the roadmap and process structure.

  • Established communication channels and reporting.

  • Designed platform architecture and security concept (Azure Cloud).

  • Prepared and executed the PCI DSS Level 1 certification.

  • Led PCI DSS Level 1 compliance from scratch to certification within 10 weeks.

  • Integrated the first clients.

  • Increased performance by about 30% after go-live (Azure).

Oct 2020 - Jul 2021
10 months
Dresden, Germany

Management Consultant – Cloud Transformation

T-Systems Multimedia Solutions

Expertise details
Position Summary
Management Consultant – Cloud Transformation at T-Systems Multimedia Solutions
Industries
Information Technology
Business Areas
Business Intelligence
Information Technology
Operations
  • Consulted on transformation projects for applications in modern cloud architectures for large enterprise clients.

  • Transitioned to highly automated IT operations based on Microsoft Azure.

  • Refactored and redeveloped applications.

  • Established nearshore sites in Hungary and Slovakia.

  • Optimized the managed Azure platform.

  • Increased services sales performance by about 20% for MMS's key logistics clients.

  • Consolidated financial and contractual frameworks.

  • Stabilized the overall budget (forecast BI, dashboard).

  • Boosted employee motivation by breaking down silos.

  • Launched the nearshore site in Hungary within 8 weeks.

Jun 2019 - Sep 2020
1 year 4 months
Munich, Germany

Interim Director of Engineering – Partnerships

Joyn GmbH

Expertise details
Position Summary
Interim Director of Engineering – Partnerships at Joyn GmbH
Industries
Media and Entertainment
Business Areas
Human Resources
Information Technology
Product Development
  • Technological vision, strategy and architecture guidance for international squads in a fast-paced startup environment (AWS, React, Kafka, Kubernetes, GitLab).

  • Innovative VOD streaming product development from scratch – architecture and successful market launch.

  • Team building and hiring top talent.

  • Agile transformation into a world-class engineering company.

  • Building international high-performance teams (local and nearshore).

  • Joyn Selection from concept to go-live in just 10 months.

Mar 2018 - May 2019
1 year 3 months
Munich, Germany

Technical Consultant

HAWK:AI

Expertise details
Position Summary
Technical Consultant at HAWK:AI
Industries
Banking and Finance
Information Technology
Business Areas
Business Intelligence
Information Technology
Quality Assurance
  • Market analysis of the competitive landscape.
  • Preparation for ISO 27.00x / IT security certification.
  • Technical mentoring.
Sep 2015 - May 2019
3 years 9 months
Karlsruhe, Germany

Tipico Technology Services GmbH

Expertise details
Position Summary
Industries
Information Technology
Business Areas
Information Technology
Nov 2014 - Aug 2015
10 months
Barcelona, Spain

Fractional CTO

CommerceGate

Expertise details
Position Summary
Fractional CTO at CommerceGate
Industries
Information Technology
Business Areas
Human Resources
Information Technology
Project Management
  • Platform re-architecture & relaunch.
  • Structuring and implementing agile processes.
  • Hiring and team development.
Nov 2012 - Aug 2015
2 years 10 months
Palma, Spain

AXIS DATA, S.L.U.

Expertise details
Position Summary
Industries
Information Technology
Professional Services
Business Areas
Information Technology
Jul 2000 - Oct 2012
12 years 4 months
Munich, Germany

WIRECARD AG

Expertise details
Position Summary
Industries
Banking and Finance
Business Areas
Finance
Information Technology
Mar 1999 - Jun 2000
1 year 4 months
Slovakia

Nemetschek AG

Expertise details
Position Summary
Industries
Construction
Information Technology

Industry Experience

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

Experienced in Banking and Finance, Information Technology, Professional Services, Media and Entertainment, Construction, and Tourism.

Banking and Finance
Information Technology
Professional Services
Media and Entertainment
Construction
Tourism
Profile match chart

Business Area Experience

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

Experienced in Information Technology, Finance, Project Management, Product Development, Business Intelligence, and Human Resources.

Information Technology
Finance
Project Management
Product Development
Business Intelligence
Human Resources
Profile match chart

Summary

  • Interim & Fractional CTO / CIO | Trusted Advisor for SaaS and PE portfolio companies

  • Developing cloud strategies and transformations (AWS, Azure)

  • Technology & tech due diligence in various contexts

  • Motivator and mentor for international teams

  • Entrepreneurial mindset and action

  • Proactive, hands-on, solution-oriented

  • Many years of experience with PCI DSS and ISO 27.00x audits

  • Mentoring high-performing eHealth, streaming, and FinTech startups

  • Technology transformation: Leading large-scale programs including ERP migration (Microsoft Business Central), development of AI and IT strategies, and cloud modernization (AWS, Azure).

  • Organizational leadership: Responsible for technology organizations with up to 100 people and full P&L responsibility (€8M) – ensuring stability, scalability, and excellent delivery performance.

  • Data & BI modernization: Designing and implementing a modern data warehouse architecture (MS Fabric, AI) and developing a data strategy to drive data-driven decision-making.

  • Security & compliance: Successfully completing multiple PCI DSS and ISO 27001 certifications, ensuring top security standards and building investor and customer trust.

  • SaaS & private equity expertise: Trusted advisor for SaaS and private equity-backed companies, focusing on aligning technology with business strategy, improving efficiency, and accelerating growth.

Languages

Slovak
Native
German
Advanced
English
Advanced

Education

Sep 1993 - Jun 1998

Constantine the Philosopher University in Nitra

Master · Computer Science and Physics · Nitra, Slovakia

Certifications & licenses

PCI DSS 4.0

PCI DSS Level 1

ITIL V3 Foundation Certification

Certified SCRUM Product Owner

Certified ScrumMaster

Statistics

Experience

Total positions 17
Experience in Banking and Finance 14 y
Avg length 1 y 8 m
Longest experience 12 y 3 m

Global Experience

Countries worked in 3 (Germany, Slovakia, Spain)
Primary country Germany

Expertise

Recent roles TECH DUE DILIGENCE FOR PE, VC & FAMILY OFFICES (UNDER NDA) – AI STRATEGY, Interim CTO, Tech Advisor & CTO Mentor
Main industries Banking and Finance, Information Technology, Professional Services
Main business areas Information Technology, Finance, Project Management

Qualifications

Highest degree Master
Certifications earned 5

Profile

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Frequently asked questions

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

Where is Martin based?

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

What languages does Martin speak?

Martin speaks the following languages: Slovak (Native), German (Advanced), English (Advanced).

How many years of experience does Martin have?

Martin has at least 27 years of experience. During this time, Martin has worked in at least 11 different roles and for 17 different companies. The average length of individual experience is 2 years and 7 months. Note that Martin may not have shared all experience and actually has more experience.

What roles would Martin be best suited for?

Based on recent experience, Martin would be well-suited for roles such as: TECH DUE DILIGENCE FOR PE, VC & FAMILY OFFICES (UNDER NDA) – AI STRATEGY, Interim CTO, Tech Advisor & CTO Mentor.

What is Martin's latest experience?

Martin's most recent position is TECH DUE DILIGENCE FOR PE, VC & FAMILY OFFICES (UNDER NDA) – AI STRATEGY at PE, VC & family office portfolio companies (confidential, under NDA).

What companies has Martin worked for in recent years?

In recent years, Martin has worked for PE, VC & family office portfolio companies (confidential, under NDA), Berge & Meer Touristik GmbH, Quantrefy GmbH, movingimage EVP GmbH, and Rubean AG.

Which industries is Martin most experienced in?

Martin is most experienced in industries like Banking and Finance, Information Technology, and Professional Services. Martin also has some experience in Media and Entertainment, Construction, and Tourism.

Which business areas is Martin most experienced in?

Martin is most experienced in business areas like Information Technology, Finance, and Project Management. Martin also has some experience in Product Development, Business Intelligence, and Human Resources.

Which industries has Martin worked in recently?

Martin has recently worked in industries like Information Technology, Tourism, and Healthcare.

Which business areas has Martin worked in recently?

Martin has recently worked in business areas like Information Technology, Project Management, and Product Development.

What is Martin's education?

Martin holds a Master in Computer Science and Physics from Constantine the Philosopher University in Nitra.

Does Martin have any certificates?

Martin has 5 certificates. Among them, these include: PCI DSS 4.0, PCI DSS Level 1, and ITIL V3 Foundation Certification.

What is the availability of Martin?

Martin is immediately available part-time for suitable projects.

What is the rate of Martin?

Martin'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 Martin?

To hire Martin, 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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Rate comparison chart
Market avg: 880-1040 €
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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