Recommended expert

Martin Rusnak

Interim CTO

Martin Rusnak
Poing, Germany

Experience

Dec 2024 - Oct 2025
11 months
Rengsdorf, Germany

Interim CTO

Berge & Meer Touristik GmbH

  • ERP migration (Microsoft Business Central) as a central transformation project – planning, managing, and implementing to harmonize processes and system landscapes.

  • Detailed IT cost analysis followed by the development of 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 stability.

  • AI and IT strategy development – working with the team to develop an AI-first strategy (3-year plan) and a coordinated IT and data strategy to drive digitization and innovation.

  • IT setup successfully reorganized and core processes sustainably stabilized.

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

  • Visible digital transformation – two strategic projects successfully rolled out across the organization.

Sep 2024 - Nov 2024
3 months
Karlsruhe, Germany

Tech Advisor & CTO Mentor

Quantrefy GmbH

  • Mentoring the in-house 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 drive strategic product development.
Oct 2023 - Jul 2024
10 months
Berlin, Germany

Interim CTO

movingimage EVP GmbH

  • Ensuring a stable, compliant, and secure video platform (AWS) with high reliability and performance.

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

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

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

  • Building a strong tech leadership team: establishing key 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

  • 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 according to the new PCI DSS 4.0 standards.

Apr 2023 - Jul 2023
4 months
Munich, Germany

Interim CTO

Smartify IT Solutions GmbH

  • Delivering a comprehensive operating model (18 modules in total).

  • Accelerating delivery in a high-performance Kubernetes and DevOps environment.

  • Ensuring data integrity of highly sensitive patient data.

  • Transforming into a reliable, fast, and easy-to-maintain AWS environment.

  • Reduced software development times by 100%.

  • Significantly lowered error rates through smart use of cloud services.

May 2022 - Mar 2023
11 months
Stuttgart, Germany

Interim CTO / C-Level Sparring

Onventis GmbH

  • Leadership of the technology division with 60+ team members (SD, IT, SRE, Security, Architecture).
  • Product and technology due diligence for strategic investors.
  • Performance improvement and stabilization of the Onventis Buyer Platform.
  • Multi-cloud strategy (private cloud, MS Azure, AWS).
  • Introduction of agile portfolio and program management.
  • Migration from a monolithic architecture to a cloud-native model (Azure).
  • Implementation of OKRs across the organization.
Aug 2021 - Jan 2022
6 months
Munich, Germany

Interim Director of Technology

Temedica GmbH

  • Expansion and leadership of software development teams.

  • Leadership of the infrastructure team.

  • Roadmap development for the technical strategy of new products.

  • Development of high-performance squads.

  • Driving recruitment.

  • Doubling of the development teams within 4 months.

  • Stabilization of team structures.

  • Improvement of team spirit by optimizing communication across all levels.

  • Support for the complex ISO 13485 (SaMD) audit certification.

Nov 2020 - Apr 2021
6 months
Slovakia

Fractional CTO - FinTech

Areto Payment Processing

  • Building the core team.

  • Definition of roadmap and process structure.

  • Definition of communication channels and reporting.

  • Platform architecture and security concept (Azure Cloud).

  • Preparation and execution of PCI DSS Level 1 certification.

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

  • Integration of initial customers.

  • Performance increase of about 30% after go-live (Azure).

Oct 2020 - Jul 2021
10 months
Dresden, Germany

Management Consultant – Cloud Transformation

T-Systems Multimedia Solutions

  • Consulting in transformation projects for applications in modern cloud architectures for major clients.

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

  • Refactoring and redevelopment of applications.

  • Establishment of nearshore locations in Hungary and Slovakia.

  • Optimization of the managed Azure platform.

  • Increase in services sales performance by about 20% for MMS key clients (logistics).

  • Consolidation of financial and contractual frameworks.

  • Stabilization of the overall budget (forecast BI, dashboard).

  • Increase in employee motivation by breaking down silo thinking.

  • Go-live of the nearshore location in Hungary within 8 weeks.

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

Interim Director of Engineering – Partnerships

Joyn GmbH

  • Technological vision, strategy, and architecture guidance for international squads in a fast-paced startup environment (AWS, React, Kafka, Kubernetes, GitLab).

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

  • Team building and hiring of top talents.

  • 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 Advisor

HAWK:AI

  • Market analysis of the competitive environment.
  • Preparation for ISO 27.00x / IT security certification.
  • Technical mentoring.
Sep 2015 - May 2019
3 years 9 months
Karlsruhe, Germany

Tipico Technology Services GmbH

Nov 2014 - Aug 2015
10 months
Barcelona, Spain

Fractional CTO

CommerceGate

  • Platform redesign & relaunch.
  • Structuring and introducing agile processes.
  • Hiring and team development.
Nov 2012 - Aug 2015
2 years 10 months
Palma, Spain

AXIS DATA, S.L.U.

Jul 2000 - Oct 2012
12 years 4 months
Munich, Germany

WIRECARD AG

Mar 1999 - Jun 2000
1 year 4 months
Slovakia

Nemetschek AG

Industries Experience

See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.

Experienced in Information Technology (5 years), Banking and Finance (1.5 years), Media and Entertainment (1.5 years), Tourism (1 year), and Healthcare (0.5 years).

Information Technology
Banking and Finance
Media and Entertainment
Tourism
Healthcare

Business Areas Experience

The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.

Experienced in Information Technology (8 years), Project Management (4 years), Product Development (3.5 years), Business Intelligence (3 years), Human Resources (2 years), and Quality Assurance (2 years).

Information Technology
Project Management
Product Development
Business Intelligence
Human Resources
Quality Assurance

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 setups

  • Motivator and mentor for international teams

  • Thinking and acting like an entrepreneur

  • 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

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

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

  • Data & BI modernization: Designing and implementing a modern DWH 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 trust with investors and customers.

  • SaaS & private equity expertise: Trusted advisor for SaaS and private equity-backed companies, focusing on aligning technology and 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's degree · 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

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 26 years of experience. During this time, Martin has worked in at least 10 different roles and for 16 different companies. The average length of individual experience is 2 years and 8 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: Interim CTO, Tech Advisor & CTO Mentor, Management Consultant / Program Manager for PCI DSS Audit.

What is Martin's latest experience?

Martin's most recent position is Interim CTO at Berge & Meer Touristik GmbH.

What companies has Martin worked for in recent years?

In recent years, Martin has worked for Berge & Meer Touristik GmbH, Quantrefy GmbH, movingimage EVP GmbH, Rubean AG, and Smartify IT Solutions GmbH.

Which industries is Martin most experienced in?

Martin is most experienced in industries like Information Technology (IT), Banking and Finance, Media, and Entertainment and Publishing. Martin also has some experience in Tourism and Hospitality, Healthcare, and Professional Services.

Which business areas is Martin most experienced in?

Martin is most experienced in business areas like Information Technology (IT), Project Management, and Product Development. Martin also has some experience in Business Intelligence, Human Resources (HR), and Quality Assurance (QA).

Which industries has Martin worked in recently?

Martin has recently worked in industries like Information Technology (IT), Tourism and Hospitality, and Healthcare.

Which business areas has Martin worked in recently?

Martin has recently worked in business areas like Information Technology (IT), 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.

1000
750
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Market avg: 830-990 €
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.