Behind Nemand
Andrej Němec
Founder & CEO
Andrej Němec holds an MSc in Aerospace Engineering from Sapienza University of Rome and has more than 20 years of international experience in Air Traffic Management, satellite-based navigation, aviation safety and regulatory affairs.
During his career, he has developed extensive expertise across major aviation-sector topics, including aviation safety, regulatory implementation, sustainability, air transport policy and the environmental performance of aviation.
He has held management roles in aviation industry associations, including ACI EUROPE and the European Business Aviation Association (EBAA), and worked as Brussels representative for INECO, a Spanish transport engineering and consultancy company. In that role, he also served as GNSS and Air Traffic Management Engineer, leading implementation projects that demonstrated the technical and socio-economic benefits of satellite-based air navigation systems.
He has strong experience in EU affairs, regulatory monitoring, business development and coalition-building in the transport and aviation policy environment.
He served as Seconded National Expert for Regulatory Affairs at the SESAR Joint Undertaking and as ATM expert in the Core Team of the EUROMED Aviation Project, a European Commission project supervised by DG MOVE and funded by EuropeAid/DevCo. The project provided technical support and expertise to countries of the MEDA region, including Morocco, Algeria, Tunisia, Egypt, Israel, Lebanon, Jordan, Turkey and Syria.
As a former member of the European Union Aviation Safety Agency (EASA) Advisory Board, the Flight Standards and Aerodromes subcommittees, the EASA Safety Standards Consultative Committee (SSCC) and the European Commercial Aviation Safety Team (ECAST), he gained significant experience in aviation safety rulemaking and institutional stakeholder coordination with EASA, the European Commission, the European Parliament and other key aviation bodies.
A Slovenian-Italian national, he speaks fluent English, French and Spanish, and has a good command of German and Serbo-Croatian.
Olivier Bruyère
Project Manager
Passionate about aeronautics, Olivier is a former transport aircraft C160 Captain. He holds a Master of operational and functional management and spent 31 years in the French Air Mobility Command. He totalized 5500 hours of flight in peace, crisis and war time.
During the last 4 years, Olivier worked as an Operations Manager at EATC, European Air Transport Command, Eindhoven, Nederland. He led a team of 11 European dispatchers in charge of computing Jeppesen flight plans and routes and preparing diplomatic clearances for 7 member states of the organization. In the meantime, he designed a diplomatic request file communal for EATC and European Defence Agency EDA; this mitigated the ratio of manual mistakes and allowed the two organizations to save time at work.
In his high-yielding career, Olivier constantly developed technical and managerial competencies and skills, especially in stressful environments.
Prior to joining NEMAND, he was a flight instructor, a director of flight operations, a Squadron Commander and a Project Manager. He designed the media event Air Show in June 2014 for the 80th anniversary of the French Air Forces in collaboration with the TV channel France 2. In addition to this, Olivier was in charge of managing and evaluating the French metropolitan airspace security.
He was awarded the French the Legion of Honour (Légion d'honneur) and received 5 congratulation letters for his exceptional services.
Denis Koehl
Principal
Aviation Advisor
Denis Koehl is a former Major-General of the French Air Force and a senior aviation, defence and civil-military cooperation expert. He joined the French Air Force as a fighter pilot in 1976 and also served within the French Navy, obtaining all Navy fighter-pilot qualifications on board aircraft carriers.
During his military career, he held several high-level command and management positions in military aviation, including responsibility for air bases, air wings and general staff activities. He managed complex operations across Europe, the Middle East and Africa in multinational environments, including NATO frameworks, and led strategic policy, structural reorganisation and operational transformation initiatives.
After leaving the military, Denis joined the SESAR Joint Undertaking in Brussels. The SESAR Joint Undertaking is the European public-private partnership responsible for developing and coordinating the SESAR Programme, the technological and operational modernisation programme of the Single European Sky. In this role, Denis contributed to European ATM modernisation activities aimed at improving the safety, efficiency, capacity, interoperability and environmental performance of European air traffic management.
His work within the SESAR environment gave him direct exposure to the cooperation between European institutions, civil aviation stakeholders, military authorities, industry, research organisations and operational experts involved in shaping the future European ATM system.
In March 2016, Denis was appointed to the European Union Aviation Safety Agency (EASA) in Cologne, where he promoted coordination and cooperation between EASA, military authorities and the defence and security industry on matters related to air operations, airworthiness, maintenance, safety, security, drones and aviation crisis management.
Within NEMAND, Denis has successfully supported NATO Industrial Advisory Group (NIAG) activities, including NIAG SG-289 on Precision Approach & Landing Systems – Future Technologies. He is also representing NEMAND in NIAG SG-308 on Aeronautical Navigation – Future Technologies, further strengthening NEMAND’s contribution to NATO-related aviation, navigation and defence technology studies.
Thanks to his extensive experience across military aviation, the SESAR Joint Undertaking, EASA and NATO environments, Denis brings NEMAND a unique combination of strategic defence insight, ATM modernisation expertise, aviation safety knowledge, civil-military coordination capability and high-level stakeholder engagement experience.
As Belgian-French national, he speaks fluent English and French, and has good command of German.
Fábio Guimarães
ATM Operations Expert
Fábio Guimarães is an experienced Air Traffic Management professional with more than 13 years of operational experience as an Air Traffic Controller within the Portuguese Air Force and in cooperation with NAV Portugal.
His operational background covers aerodrome, approach and area control, with qualifications including ADV/ADI, APP/APS and ACC/ACS, as well as Supervisor and On-the-Job Training Instructor endorsements. Throughout his career, he has developed strong expertise in operational ATM procedures, ATC training, civil-military coordination and multinational operational environments.
Fábio has significant experience in Airspace Management and the Flexible Use of Airspace concept. During his assignment at Lisbon Area Control Centre, he acted as Military Supervisor within the Airspace Management Cell, supporting civil-military coordination, airspace planning and operational coordination activities linked to FUA and ATFM processes.
He also gained experience in multinational military operations and exercises, including participation in the NATO Baltic Air Policing Mission in Lithuania. Before joining NEMAND, he worked as a Theoretical Knowledge Training Instructor at an Approved Training Organisation, delivering Air Law and Aeronautical Communications training for ATPL students. He also supported NAV Portugal as a pseudo-pilot in ATC simulation exercises.
Within NEMAND, Fábio contributes operational ATM expertise to projects related to Network Strategy Plan monitoring, CONOPS support, airspace management and European ATM operational improvements.
Fábio Guimarães possesses 2 citations and one medal award for Exemplar Behavior from the Portuguese Air Force Chief of Staff.
A Portuguese national, he speaks fluent Portuguese and English, has a good command of Spanish and basic knowledge of French.
Tiago Ramos
Gerner-Mathisen
ATM Project
Manager
Tiago Ramos Gerner-Mathisen is an experienced Air Traffic Management specialist with more than 12 years of operational experience as an Air Traffic Controller, On-the-Job Training Instructor, Supervisor and Assessor within the Portuguese Air Force and in cooperation with NAV Portugal.
Since January 2025, he has been supporting EUROCONTROL’s Network Manager in the framework of the NM Flight Plan & Flight Data Evolution (FPFDE) strategic project and the NM Flight Efficiency Initiative. His work focuses on FF-ICE operational implementation, flight plan and flight data evolution, VFR flight plan processing, mixed IFR/VFR operations, stakeholder coordination and support to flight-efficiency and rerouting-related activities.
Tiago acts as Secretary of both the FPFDE Sub-Group and the VFR Focus Group, supporting the preparation of agendas, coordination with presenters, drafting of official minutes, follow-up of actions and maintenance of project documentation. He also contributes to stakeholder engagement activities, workshops, webinars, operational presentations and implementation-support material for ANSPs, airspace users, CFSPs, airports, regulators and ATM system suppliers.
His operational background includes aerodrome, approach and area control, civil-military coordination under the Flexible Use of Airspace concept, AUP/UUP processes, and experience with Network Manager tools and systems such as CHMI, NMP/NMUI Flight, NEST, LARA, IFPS, ETFMS, GRRT and SOAPui.
With a strong combination of operational credibility, structured project coordination, stakeholder engagement and professional documentation skills, Tiago contributes to the modernisation of European flight planning processes and to the progressive implementation of new Network Manager operational concepts.
Dragana Samardžić
Dragana Samardžić is an experienced RVSM Approval Management and Flight Plan Investigation specialist, supporting EUROCONTROL’s European Regional Monitoring Agency (EUR RMA) through NEMAND.
Since 2018, she has worked on the maintenance and quality control of the EUR RMA database of aircraft approved to operate in European RVSM airspace. Her work includes processing and validating RVSM and PBCS approval data, conducting periodic state audits, supporting flight plan audits, and contributing to the European RVSM Restriction List process.
She has strong practical experience with aviation data management, relational databases and operational analysis tools, including PRISME, the EUR RMA Toolset, NMIR, NEST, Oracle-based databases and Power BI. She also supports investigations into potential RVSM airspace misuse by comparing flight plan data, surveillance information and operational records.
Dragana regularly coordinates with civil aviation authorities, aircraft operators, other Regional Monitoring Agencies and EUROCONTROL operational stakeholders. She has also contributed to international aviation working arrangements, including ICAO-related meetings and EUR RMA workshops.
She holds a Postgraduate Degree and a Bachelor’s Degree in Maritime Management from the University of Montenegro. She is fluent in English, Serbian/Croatian and Russian, with additional knowledge of Italian, French and Dutch.
Mariola Ziolkowski
Senior Aviation & Buisiness Development Advisor
Mariola Ziolkowski is a Senior Aviation & Organisational Transformation Consultant with more than 25 years of international consulting experience supporting airport operators, governments, international financial institutions and private sector organisations across Europe, the Middle East, Africa, Asia and the Caribbean. She specialises in organisational transformation, operational readiness and airport transition (ORAT), human capital, governance, change management and capacity building.
Mariola has successfully led and supported complex airport development and transformation programmes, helping clients prepare organisations, people and processes for new airport operations and major organisational change. Her expertise includes organisational design, HR strategy, workforce planning, stakeholder engagement, operational readiness, airport security, training and competency development, operational procedures, governance frameworks and business process improvement.
Throughout her career, Mariola has delivered advisory services for major international aviation projects, including NEOM Airport, Kuwait International Airport Terminal 4, Erbil International Airport, Ashgabat International Airport, Nigeria Air, Heraklion International Airport, and Airports in St.Lucia, as well as aviation capacity-building and institutional strengthening programmes funded by the World Bank and other international development organisations.
Her consulting assignments have taken her to Germany, Bulgaria, Greece, Vietnam, Russia, the United Arab Emirates, India, Kurdistan (Iraq), Tanzania, Turkmenistan, Saudi Arabia, Kuwait, Nigeria, St. Lucia and Grenada, where she has advised public and private sector clients on organisational transformation, airport operations, HR strategy, operational readiness, security and training.
Mariola is an Accredited International Airport Professional (IAP) by ACI/ICAO, a Certified International Aviation Law Analyst (CIALA), and holds the ACI–ICAO Airport Security Diploma. She is recognised for combining strategic insight with practical implementation, enabling organisations to successfully manage complex transformation programmes while delivering sustainable operational excellence.
She is regularly invited as a speaker in international aviation conferences and has supported many women to enter the aviation industry.
Nataša Dojčinović
Nataša’s engagement with aviation started back in her teenage days when she joined the Belgrade Aviation Academy in her native Serbia where she obtained the Degree of Air Transport Technician. As well, she holds an MSc Degree from the Faculty of Transport and Traffic Engineering, department of Aeronautical, University of Belgrade, Serbia.
She is currently working at a world-leading MRO provider SR Technics in Component Services Engineering department.
She is responsible for planning and execution to improve performance, cost-effectiveness and service quality of fleet of A320, A330, B737, B777, B787. Her main job is to customize and modernize systems to the highest level of accuracy and efficiency by airworthiness.
Nataša has a diverse aviation background academically and on-the-job experience which covers the fields of air transport, flight operations, safety, and security, at both national and international levels.
She worked as a Weight and Balance Load Controller. She planned, coordinated and produced all loading, weight and balance calculation and documentation by following company and client airline specifications.
She did apprenticeships and visits to prestigious aeronautical companies in Serbia, such as Serbia and Montenegro Air Traffic Services (SMATSA), Civil Aviation Directorate of the Republic of Serbia, Serbian Military Technical Institute, Belgrade “Nikola Tesla” Airport, Niš Airport, Tivat Airport, and the flag carrier of Serbia - Air Serbia.
Nataša has implemented many successful ways to support cultural change, increase the productivity of various plants and sites and she has implemented transformation processes during her hospitality experience in the cruise industry. Her efficient methods and continuous efforts resulted in considerable productivity growth and consequently higher revenue results for her company.