At Resoptima we are passionate about driving value through effective reservoir management.

Management Team | Board Of Directors

Through innovation we deliver scalable software and high-value services for reservoir modelling and reservoir management, efficiently integrating static and dynamic data in repeatable modelling workflows.

We believe in working, and succeeding together with our clients, to save time, reduce costs and minimize risk.


Management Team

Mellilo, Atila-sh-web

Atila Mellilo

Chief Executive Officer

Atila Mellilo is the CEO of Resoptima. He is responsible for driving the company towards its mission of enabling E&P organizations in the Oil & Gas industry to leverage the power of reservoir models to increase revenues, save time, reduce costs and minimize risks.

Atila has extensive experience from several advanced technology companies, such as Cambi, Scali, Tieto and IBM, as well as from Management Consultancy practices. He holds an EMP from INSEAD.

Munch, Tore-sh-web

Tore Felix Munck

Chief Technology Officer

Tore Felix Munck is the Founder and CTO of Resoptima, and responsible for developing the company’s portfolio of innovative software and technologies, delivering solutions that allow E&P organizations turn data into value, and capitalize on improved reservoir management processes.

Tore has extensive experience with software development, product management and commercialization, with a track record of market leading products for reservoir engineering and simulation. He holds an M.Sc. in Reservoir Engineering/Simulation and Computer Science from the Norwegian University of Science and Technology (NTNU).

Sætrom, Jon-sh-web

Jon Sætrom

Chief Science Officer

Jon Sætrom is the CSO of Resoptima, and responsible for bridging the gap between academic research efforts and high-value reservoir management software and services that help subsurface teams use repeatable reservoir modelling workflows to quantify uncertainty and mitigate risks in reservoir management decisions.

Jon brings more than 10 years of experience working with ensemble based reservoir modelling and data conditioning both in academia and in the industry. He holds a Ph.D. in Statistics and a M.Sc. in Industrial Mathematics from the Norwegian University of Science and Technology (NTNU).

Sandø, TC-sh-web

TC Sandø

Chief Commercial Officer

TC Sandø is the CCO of Resoptima, and responsible for growing the company’s global customer base, driving adoption and retention to deliver scalable software and high-value services for reservoir modelling and reservoir management, to help our customers meet their deadlines, keep their promises and achieve their desired business outcomes.

TC brings 10 years of experience from several positions in Schlumberger ranging from reservoir engineering software support to global reservoir engineering software marketing manager. He holds an M.Sc. in Reservoir Engineering/Simulation and Computer Science from the Norwegian University of Science and Technology (NTNU).

Quental, Sandra-sh-web

Sandra Quental

Customer Success Manager

Sandra Quental is the CSM of Resoptima, and responsible for ensuring a long-term relationship between Resoptima and its customers, by delivering a seamless experience through effective technology adoption, high quality support & training and high-value consulting projects.

Sandra has 15 years of experience in the oil and gas industry. She spent 10 years in Schlumberger Software as a geologist where she held positions within software support, business development, software development and marketing. Before joining Resoptima, Sandra worked as a senior geologist at Repsol Norway. She holds an M.Sc. in Marine Geology and Geophysics from the Fluminense Federal University, in Brazil.

Board of Directors


Sverre Munck

Sverre Munck is an investor and professional board member. He is currently the Chairman of the board of Directors of Opera Software. Mr. Munck has 20 years of experience from the media and technology industry as Executive Vice President at the Schibsted Media Group. Prior to joining Schibsted Sverre Munck i.a. was a consultant at McKinsey & Co as well as the Norwegian Finance Ministry.

He received his B.A in Economics from Yale University, and his PhD from Stanford University. He currently sits on the Digital Advisory Board of TAMEDIA AG in Switzerland, as well as several start up companies in Norway.


Peter Mellbye

Peter Mellbye is former Executive Vice President, Development & Production, International, of Statoil ASA. Mr. Mellbye has 30 years of experience from Statoil, and was an Executive Vice President in the company from 1992 to 2012. He worked in the Norwegian Ministry of Trade and Industry from 1975 to 1979 before joining the Norwegian Trade Council, where he worked from 1979 to 1982.

Mr. Mellbye is currently the Chairman of the board of Directors of Halfwave AS and sits on the boards of FMC Technologies, Qinterra Technologies (previously known as Aker Well Service AS), Competentia, Energy Ventures Fund III and Energy Ventures Fund IV.


Erik Langaker

Erik Langaker is an investor and professional board member. He has a background as a tech entrepreneur and banker with a long career as (co-) founder and cornerstone investor in international technology companies, several of them within the energy industry. Among them; Payex Group, Geoknowledge, StormGeo Group and Hitec Vision/Industries.

Mr. Langaker is currently serving as the Chairman of Datarespons ASA (listed OSE), CAMO Software Group, EPC Plc, Kezzler Group and Cambridge Medical Robotics Ltd. He is serving as non exec Director on the Boards of Stormgeo Group, Brandmaster Group, Seram Coating and other companies engaged in the technology sector.

He serves on the program committee of NTNU, school for entrepreneurs (Trondheim), and acts as industrial advisor for EQT Private equity.

His investment Company, Vestland Invest AS, was the first cornerstone investor in Resoptima AS.


Benjamin Sommer

Mr. Sommer has been the Managing Partner of Lean Venture AS since 2012. He has been a private investor since 2005 and has co-founded several companies. Mr. Sommer has considerable experience from the development of IT and technology companies.

He currently serves as board member of CAMO Software and Chairman of the board of Directors of Checkd AS. Mr. Sommer holds an MBA in Internationalization from the University of Agder and executive education from Haas School of Business, University of California, Berkeley.

The appointment of Peter Mellbye and Benjamin Sommer increases the total number of Resoptima directors to 6, 5 of which are outside directors.