The amd.sigma Team

A Team of Experienced Airport Specialists

amd.sigma’s team is made up of highly experienced specialists in strategic development planning. Our senior consultants have an extensive network in the airport industry and the ability to work across multiple languages and cultural contexts.

Dr. Weisser, Lutz
Managing Director
Strategic Airport Development
Fitzek, Alexander
Partner & Senior Consultant
Strategic Airport Development
Dr. Zitzmann, Diana
Senior Consultant
Strategic Airport Development
Bünck, Olaf
Senior Consultant
Strategic Airport Development
Strüfing, Birger
Senior Consultant
Strategic Airport Development
Brinkmann, Robert
Senior Consultant
Strategic Airport Development
Symalla, Adam
Senior Consultant
Strategic Airport Development
Barsch, Sandra
Consultant
Technical Planning Airside
Dorwarth, Klaus
Senior Consultant
Strategic Airport Development
Gintner, Christopher
Senior Consultant
Strategic Airport Development
Le Gros, James
Senior Consultant
Strategic Airport Development
Maksoudian, Queena
Consultant
Strategic Airport Development
Oliveira, Pedro
Senior Consultant
Strategic Airport Development
Roy, Nikhitha
Consultant
Project Management & Masterplanning
Schwethelm,Tim
Consultant
Capacity Planning
Treichel, Maximilian
Consultant
Project Management & Capacity Programming Expert
Tuzbekova, Olesya
Consultant
Marketing & Business Development
Ziegler, Patrick
Senior Consultant
Strategic Airport Development
Ohm, Benedict
Senior Consultant
Strategic Airport Development
Kovač, Gordana
Administration
Financial Accounting

Dr. Weisser, Lutz
Snow
Managing Director
Strategic Airport Development
Lutz Weisser is a global expert in airport privatization, strategic airport development and master planning. His knowledge of the technical side of the business is complemented by his comprehensive understanding of financial processes and business planning. Lutz began his career initially as a freelance architect. Then he worked on international projects for BMW, including the North American headquarters in New Jersey. Even before founding amd.sigma, he co-founded adm (airport design management) and established offices for the company in Vienna and Berlin. In 2011, after 11 successful years, Lutz Weisser decided to focus on strategic development planning and founded amd.sigma. As founder and managing director of amd.sigma he is responsible for customer relationship management and business development.

Fitzek, Alexander
Snow
Partner & Senior Consultant
Strategic Airport Development
Alexander Fitzek has three decades of experience working as a masterplanner and consultant on national and international transport projects. His key expertise lies in capacity analysis, concept design and CAPEX estimations for Terminal Buildings. Alexander has been involved in numerous successful airport privatisation bids including Guarulhos Airport (São Paulo) and Belo Horizonte Airport (also in Brazil). All in all, he brings with him experience of working on over 30 airport projects across Europe, Eastern Europe, Russia, Africa and South America.

Dr. Zitzmann, Diana
Snow
Senior Consultant
Strategic Airport Development
Dr. Diana Zitzmann is a building planning expert and a specialist in requirements management for airport buildings. Due to her fluent Russian language skills and her deep knowledge of the Russian culture she is also an expert for airport development in Russia and the Former Soviet Republics. Diana has conducted scientific research and published on the St. Petersburg architecture of the 1920s and worked as an architect on projects in Germany, Romania and Russia before joining amd in 2013. Diana has been the project director for new development options for Terminal 1 in Munich and for two new Authority and GSE Buildings at Hamburg Airport. For the new Terminal 2 at Berlin Airport she conducted the requirement analysis. Based on analysis she seted up the programme for the buildings, concept layouts as well as tender documents.

Bünck, Olaf
Snow
Senior Consultant
Strategic Airport Development
Olaf Bünck is an architect and real estate expert. Additionally he is also a specialist for architecture visualization. He founded his own start-up company in Berlin in 1994, which was for many years the top address for high-resolution architecture visualisations for major international projects, including airports. After over 20 years in architectural design and marketing, Olaf turned to real estate. He has been working on several master plan and airport city projects as well as vertiport concepts and has also delivered real estate analysis and concepts for airport and real estate clients.

Strüfing, Birger
Snow
Senior Consultant
Strategic Airport Development
Birger Strüfing is an experienced airport planner and expert for airport masterplanning including functional terminal design and airside infrastructure planning. 21 years ago Birger started his career working for several operational departments (landside and airside) at Hamburg Airport, as well as a ramp agent. From those experiences he gained a deep knowledge of operational passenger handling and airport processes. From 2012 as member of AMD Sigma and Munich Airport International he worked on several German projects for Hamburg, Cologne, Munich and Berlin Airport as well as for various international airport privatization and development projects in Brazil, Honduras, Greece, Cuba, USA and India.

Brinkmann, Robert
Snow
Senior Consultant
Strategic Airport Development
Robert Brinkmann is a Senior Project Manager for terminal planning and masterplanning projects and expert for capacity planning and analysis. Additionally, he has been specializing in CAST terminal simulation software and in static analysis with Microsoft Power BI. He started his career in aviation as an aircraft mechanic at Lufthansa Technics in Frankfurt followed by a bachelor and master’s degree in aviation engineering. Robert has been working on several large-scale master planning and terminal planning projects for German airports as well as for capacity- and feasibility studies in the Middle East, Brazil and Cuba.

Symalla, Adam
Snow
Senior Consultant
Strategic Airport Development
Adam is a senior management professional with more than 15 years of global experience in airport planning and management at senior and executive level in Europe, Middle-East, Australia and Africa. With a number of roles for an ATC provider, airport operator and airline, he brings a exceptional interdisciplinary knowledge of the aviation system. He has led numerous terminal and airport privatisation and consultancy projects and provided strategic advise to public and private clients with focus on strategic development, airport management, enhanced customer experience meeting stringent commercial targets and delivering return on investments to the shareholder.

Barsch, Sandra
Snow
Consultant
Technical Planning Airside
Sandra is an expert for airside concept layouts like runways, taxiways and aprons. Additionally, she works with “AviPLAN Airside Pro 3.0”, an aircraft maneuver and parking stand simulation software 2D/ 3D and with SkySAFE 2.0, an obstacle surface planner 2D/ 3D software. Sandra has 25 years of experience in airside planning for airports. She started her career with an apprenticeship as technical draftswoman in mechanical engineering. Later she joined sigma consult, a Berlin-Schoenefeld based planning company. The company became part of amd.sigma in 2012. Sandra has been working on airside conceptual studies for international airports in the middle east, south and central America, as well as on all of amd.sigma’s German projects. Additionally, she worked on planning permissions for a large number of hospital helicopter landing pads in Germany.

Dorwarth, Klaus
Snow
Senior Consultant
Strategic Airport Development
Airport Consultant specialized in Airport Development and Airport Planning. Project experience includes airport master plans, land-use plans, airport system plans, conceptual designs as well as studies on military airports and heliport facilities. Expert for survey works and Geographic Information Systems (GIS). Key attributes include excellent abilities in project management, proven by the passed PMP exam, and technical coordination. Tremendous expertise in CAD and IT applications. Experienced in 3D project visualization. Professional command of International Civil Aviation Organization (ICAO) Standards. Proven international project experience and strong intercultural professional abilities.

Gintner, Christopher
Snow
Senior Consultant
Strategic Airport Development
Christopher Gintner is an architect and urban planner with considerable international experience in terminal planning, project management, design development & coordination. Strong intercultural skills and great ability in incorporating stakeholder requirements into the design. Experience in tendering process and costing. Originally from Rio de Janeiro, Brazil, with studies and work activity in Germany, United States, South America, and the Middle East. His airport portfolio includes the Abu Dhabi Midfield Terminal, as well as Berlin, Newark, Sofia, various locations in India and others. Retail design know-how and participation in large mixed-use projects, such as the interesting Opus Tower by renowned architect Zaha Hadid, in Dubai. Christopher Gintner is flexible, with extensive technical knowledge and attentive to details, providing remarkable design solutions and process optimization.

Le Gros, James
Snow
Senior Consultant
Strategic Airport Development
James Le Gros is an architect with more than 10 years experience and an aviation consultant for the last 5 years in which he has concentrated on airport operations, planning and project development for international airport projects. Originally from New Zealand, James lived in Australia and England and worked there on international projects. After moving to Germany in 2013, he worked as project manager on the projects for First Oman Ltd. in Muscat on the project Al Ghubrah Residential and Commercial Area and such as Al Riyadh Development Authority in Saudi Arabia for the Headquarter of the Human Rights Commission. Since 2015 James worked on the projects Palmerola International Airport in Honduras and Newark International Airport, New York City, USA.

Maksoudian, Queena
Snow
Consultant
Strategic Airport Development
Queena Maksoudian is an architect and urban planner, Autodesk Certified Professional in Revit, with years of considerable international experience. Over the past years, she worked on a variety of architectural projects, from the initial design phase to completion, located mostly in Europe and the Middle East region. She particularly focused on large-scale projects, especially on the initial design and development phases, which require holistic planning, strategic thinking, the ability to find solutions, as well as project coordination, dealing with clients and preparing organized and structured presentations. Queena is a Green Building Professional accredited from LEED and DGNB Green Building Academies, she is both LEED Green Associate and DGNB International Consultant.

Oliveira, Pedro
Snow
Senior Consultant
Strategic Airport Development
Pedro Oliveira is an architect and an expert for Autodesk revit BIM software. Beside his degree in architecture, he also holds a master’s degree in international management. He started his career working 5 years as an architect with ARQX Arquitectos in Porto where he worked as an Architect in all design phases for multiple projects. After moving to Germany, he worked 3 years for Gerber Architekten in Berlin where he was Project Lead for two large scale infrastructure projects in the Middle East and China – developed in BIM environment. Since May 2018 he led the concept development for Terminal 3 at BER Berlin airport (18 MAP Capacity), as well as supporting MAI’s projects in Latin America – Brazil and Honduras. He gives weekly internal revit lectures and has recently introduced video visualization’s as a powerful mean for communication with clients.

Roy, Nikhitha
Snow
Consultant
Project Management & Masterplanning
Nikhitha Roy studied Aviation/Airway Management and Operations in Dubai, U.A.E, Coventry, UK and Berlin, Germany. With a focus on aviation and knowledge from multiple regulatory environments, Nikhitha has extensive knowledge on aspects ranging from Aviation Regulations, Strategic Airport Masterplanning, Airline Route and Fleet Development and Vertiport Design and Planning. She started her career in aviation with Emirates airlines where she worked with multiple engineering departments ranging from Quality Assurance, Engineering Technical Services and Vendor Management. In November 2020, she joined amd.sigma under the capacity of a consultant, working on various airport strategic masterplanning projects across Asia and Europe. Additionally, her responsibilities grow into the prospect of a capacity planner of urban air mobility projects and vertiport development.

Schwethelm,Tim
Snow
Consultant
Capacity Planning
Tim Schwethelm is an engineer for traffic forecast analysis and capacity calculations. He has professional knowledge in excel-based programming and statistic-analysis with Microsoft Power BI and works with the CAST Terminal simulation software. Since his childhood he is passionate in aviation and starts his studies in aviation engineering in Berlin, which he successfully completed with the bachelor’s and master’s degree. During his study Tim joined amd.sigma and has been working on several capacity- and feasibility studies on German and international airports in Munich and Newark.

Treichel, Maximilian
Snow
Consultant
Project Management & Capacity Programming Expert
Maximilian Treichel is an expert for data analysis and capacity calculations. He has professional knowlage in excel-based programming, statistic-analysis and visualization with Microsoft Power BI – Business-Intelligence and works with simulation software CAST Terminal. After his apprenticeship at the Berlin department for urban development, he dedicated his interest to his passion, aviation. The master's thesis at Lufthansa Technik in Hamburg, Germany, was successfully completed as part of his bachelor's and master's degree in aviation engineering studyed in Berlin. Maximilian has been working on several large-scale master planning projects for German airports as well as for capacity- and feasibility studies in New York JFK or Hokkaido CTS, Japan.

Tuzbekova, Olesya
Snow
Consultant
Marketing & Business Development
Tuzbekova has studied Aviation Management in Berlin and Aeronautical Engineering in Russia. Master in Aviation Management included a focus on aviation and knowledge of aviation operations for both airlines and airports, strategy development, and choice modeling. She started her career in aviation at United Aircraft Corporation, in Russia as a student working with actual aircraft and Life Support Systems for pilots. After successfully completing of studies she moved to the Department of Technical Training Facilities. During her time with UAC, her responsibilities included working with the integration and operation of comprehensive avionic equipment along with technical training facilities for pilots and engineers. Along with that, she had proven performance management processes and management for international projects in India, Malaysia, France and Russia. Olesya Tuzbekova joined amd sigma in April 2021, she is responsible for the marketing and supporting business development activities withing the company and MAI team.

Ziegler, Patrick
Snow
Senior Consultant
Strategic Airport Development
Patrick is a senior aviation consultant with more than 10 years of global experience in airport planning in Europe, North America, Asia and Africa. Specialised in key aspects of airport strategic masterplanning, he applies his interdisciplinary knowledge in airport infrastructure development projects, as well as due diligence and technical advisory projects for all sizes of airports: from small airfields in Tanzania to mega-hubs of Hong Kong, Singapore Changi and New York JFK. In his 50+ airport projects, Patrick has been advising global aviation clients on their best strategic choices, listened and understood their challenges, and delivered pragmatic solutions. He led teams to craft sustainable long-term Masterplans, provided the best business case in due diligence projects for airport concessionaires, and helped banks and other lenders to understand aviation-specific risks and opportunities in technical advisory roles.

Ohm, Benedict
Snow
Senior Consultant
Strategic Airport Development
Benedict Ohm has been an airport consultant and project manager for international airport development projects of various sizes all around the world for over 10 years. The strategic approach to each project is helping any new airport client in understanding and defining their needs, and setting the steps to create a sustainable path into the future. Approaching each project with an unobstructed and objective view is Benedict’s strength.

Kovač, Gordana
Snow
Administration
Financial Accounting
After graduating from high school and completing her training, Gordana Kovac worked abroad, among other places, and has now been working alongside Lutz Weisser as an assistant to the management/accounting department for 25 years. Her scope of work includes accounting and general administrative tasks. She is known for her structured and reliable way of working and is often referred to as the "heart" of the company.
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