ROITI Full service technology advisory for the energy trading sector

Our solutions

ETRM System Consultancy

ROITI was started by business analysts and the company continues to stay focused on current energy trading challenges and their solutions.

Learn more

Business Consultancy and Project Management

Over time we have been able to expand our knowledge also beyond OpenLink Endur, which allows us to support business departments.

Learn more

Cloud Engineering

We use cloud offerings for the creation of cloud-native applications, but also for migration and operation of legacy applications in a cloud infrastructure.

Learn more

Data Engineering & Business Intelligence

We help our clients to get their mission-critical data where needed, when needed.

Learn more

ETRM Software Development

We develop custom OpenLink Endur integrated solutions based on OpenJVS related to operational services, user defined simulation results, end-of-day workflows and GRID-enabled reporting.

Learn more

At a glance


Founded 2013


75+ business and technology experts


8+ satisfied clients in Europe and US


50+ projects in the past 7 years

1 Focus

1 Focus – IT for Energy Trading

More about ROITI

ROITI is a full-service technology advisory focused on the energy trading sector. We support our clients on their journey to digitalization by designing, developing, and maintaining IT solutions throughout the entire wholesale and retail value chain of an integrated energy trading company. Since 2013 we have offered ETRM system integration and enhancement services, cloud migrations, development of data warehouse solutions, implementation of analytics and reporting platforms for some of the largest energy trading organizations in Europe. We have an excellent understanding of European gas, power and renewables trading, logistics, asset optimization and risk management.

Follow us on Social:




Meet the team

We typically see 2 reasons why customers address consultancies:

  • They don’t have enough manpower
  • They lack specific know-how

We are focused on addressing those issues by ensuring a very knowledgeable and delivering on promise team.

Average work experience of the team members: 10 years.

Ventsislav Topuzov

Managing Partner

Ventsi is one of the founding partners at ROITI and has been serving as CEO ever since inception of the company. Prior to founding ROITI, Ventsi worked 5 years for OpenLink in Berlin, Germany where he helped numerous clients on Endur implementation projects.

Learn more

Lyubomir Yordanov

Managing Partner

Lyubo is one of the founding partners at ROITI and manages the finances of the company as CFO. Prior to finding ROITI, Lyubo worked on OpenLink Endur implementation projects for energy trading companies in Germany and the Scandinavian region.

Learn more

Irena Macheva

Service Manager

Irena joined ROITI in 2020, bringing in energy industry experience, people and process management capabilities and communication skills. She takes care of the organization and alignment of our operation services to continually provide value to our customers.

Learn more

Eroslav Andreev

Team Lead ETRM Dev

Eroslav has been part of ROITI since 2016 and joined the company as one of the first technical experts. For the last two years, Eroslav has been managing the ETRM developers’ team.

Learn more

Georgi Topalov

Team Lead Cloud Engineering

Georgi joined ROITI as a junior developer, after a short stay with an international technology company. His outstanding work attitude and profound technology knowledge helped him rise quickly through the ranks and reach his current position as team lead of ROITI’s cloud engineering team.

Learn more

Ivona Videnova

Team Lead ETRM Solutions

Ivona joined ROITI in 2017, after a PhD in Economics from Cardiff University, UK. With ROITI, Ivona worked on different implementation and upgrade projects with OpenLink Endur and RightAngle where she showed great leadership skills and was quickly promoted to team lead of ROITI’s ETRM solutions team.

Learn more

Konstantin Grigorov

Team Lead Business Solutions

Konstantin joined ROITI after six years at RWE in Germany, where he worked in risk controlling and commodity accounting. He is currently managing our business solutions team and is one of the main business domain know-how capacities in the company.

Learn more

Nikola Toshev

Team Lead Data Engineering

Niki joined ROITI in 2018, after finishing his double major in computer science and economics from the American University in Bulgaria. His dedication to help business processes by allowing effective and efficient insight from data and his strong quantitative background led to his promotion as team lead of the data engineering team at ROITI.

Learn more

Gabriella Bankova

Team Lead Business Intelligence

Gabi leads the Business Intelligence team at ROITI and joined with over 9 years of experience in BI, software development, business analysis and team management. Throughout her career Gabi has used a wide range of technologies within the fintech and the energy industries.

Learn more

Maria Paskaleva

Manager, Human Resources

Maria joined ROITI in 2018 after graduating from the American University in Bulgaria, with a double major in Journalism and Mass Communications, and Politics and International Relations. She is managing all affairs of human resources, including hiring process, company benefits and preparation of internal surveys and evaluations.

Learn more

Veselina Kalpazanova

Head of Administration

Vesi is with ROITI since 2014 and together with her team manages all our processes, subscriptions, inventory, supplies and travel accommodations. Vesi is exceptionally well organized and always ready to help with any possible organizational inquiry.

Learn more


Meet other companies in your shoes

Take a look at our clients stories

Optimized solutions for every case

Contact us and learn how can we help