About us

Leo is a founder, lead engineer and board member of Energex. He is a certified thermal engineer and a certified energy efficiency specialist.

Leo holds a Master’s degree in Thermal Engineering and a Master’s degree in Business Administration from Tallinn University of Technology, where he gained knowledge in heat and power generation, district heating, industrial heat-related processes, mechanics, chemistry, IT, finance and management. He has previously worked for 7 years at Eesti Energia in the power generation development department, in the renewable energy and small-scale co-generation unit and in the technology development service as an analyst, project manager and development manager.

In addition to his work, Leo is involved in the development of thermal and mass balance models for power plants and the preparation of research articles based on these models in connection with his PhD studies at Tallinn University of Technology. He is also a member of the council of the Estonian Society of Thermal Engineers and a member of the board of the Estonian Engineers’ Association, where he is mainly involved in ensuring the future of engineers and promoting engineering.

Viljar has been working at Energex since the company’s founding and took over the company’s management in 2021, known for his team motivation and collaboration skills. In recent years, he has taken the opportunity to travel while working remotely and has visited at least 25 new countries in both Europe and Asia.

With a master’s degree in thermal engineering from Tallinn University of Technology, Viljar has a strong background in the field of thermal engineering. His skills and knowledge have significantly contributed to his career and personal development. He holds a certified thermal engineer qualification.

In his free time, Viljar enjoys traveling, collecting Pokémon cards, and football jerseys, reflecting his versatility and creativity.

Enar works as a Development Manager and Lead Engineer at Energex, where he is responsible for leading the development of the company’s services and the implementation of development projects. Enar is known for his ability to think strategically and solve complex technical problems.

Enar holds a Master of Engineering in Thermal Engineering from Tallinn University of Technology and is a qualified thermal engineer (level 8). His academic background includes a deep knowledge of thermodynamics and energy technology.

Outside of work, Enar likes to rack his brains playing board games. To balance out the mental workload of office work, Enar relaxes at the gym, hiking in the mountains and cross-country skiing.

Andre has been working as a development manager and thermal engineer at Energex almost since the founding of the company, where he manages the implementation of various development projects and the development of the company’s services.

Andre holds a Master’s degree in Thermal Engineering from Tallinn University of Technology, where he gained knowledge in heat and power generation, district heating, industrial heat processes, mechanics and chemistry. He is a qualified thermal engineer.

In addition to his work, Andre is pursuing further education in computer science at the Eindhoven University of Technology in the Netherlands. His hobbies include running, road cycling and travelling.

Johanna joined the Energex team in the spring of 2024 and works as an executive assistant. Her responsibilities at Energex include assisting the management in various matters, recruitment, HR tasks, organizing team events, and much more.

Johanna has always been fascinated by the functioning of society and the state, which led her to study at Tallinn University of Technology, where she earned a bachelor’s degree in public administration and political science. She has work experience in both the private and public sectors and has previously been involved in sales and HR. Based on her previous experiences, Johanna has gained an understanding of the characteristics of both sectors and is familiar with their positive aspects and challenges.

To keep her mind fresh, Johanna spends her free time exploring hiking trails in nature, working out, and enjoying traveling and discovering different cultures and places.

Robert has worked in various fields at Energex over the past five years: managing digitalization and automation projects, developing resource-saving projects, and conducting complex industrial equipment procurements. With an in-depth knowledge of Energex’s services, transitioning to sales in 2023 was a natural step for Robert, aimed at creating an even stronger connection between Estonian industrial companies and Energex, helping these companies realize their growth plans.

Robert holds a master’s degree in Applied Chemistry and Biotechnology from Tallinn University of Technology, and he has a strong background in chemical process engineering and chemical technology. Throughout his career, Robert has gained extensive additional knowledge in energy technology, compressed air technology, and industrial mechanics.

In his free time, Robert enjoys hiking on nature trails, traveling, and analyzing and investing in technology companies listed on the US stock market. As a music enthusiast, Robert enjoys combining his love for music with sports such as powerlifting, cycling, or running. During some summers, Robert also finds extra enthusiasm in brewing beverages from local fruits.

Tanel started working at Energex in 2019, primarily managing projects in the street lighting sector. To continually develop and challenge himself, he began his role as Energex’s Sales Manager in 2021. His responsibilities include leading, training, and motivating the sales team, as well as engaging in active sales work. His main goal is to help find the best possible solutions for clients and demonstrate that sales can be a positive experience for all parties, with solutions always available for any problem.

Tanel holds a master’s degree in Electrical Power Engineering from Tallinn University of Technology. To ensure purposeful and high-quality sales, he has completed sales training courses and continuously develops his sales skills on a daily basis.

To effectively contribute to clients’ well-being, he highly values investing in himself and maintaining a balance between work and personal life. Tanel can often be found hiking, running, sailing, or seeking adrenaline on a snowboard in the mountains or wakeboard in the waves. Additionally, he finds stress relief in car detailing, which is why he is often seen driving a shiny car. Balance is the key to strength!

Markus works at Energex as a process engineer, where he is responsible for project management, including analyses, studies, assessments, and managing co-financed projects. Markus has been involved in a wide range of tasks within the company, such as procurement, contracts, sales, project management, calculations, environmental technology, and website development.

Markus holds a degree in Thermal Power Engineering and Energy Technology from Tallinn University of Technology. Additionally, he has completed several advanced training courses, including resource auditor training.

In his free time, Markus enjoys traveling, with his favorite activities being alpine skiing, disc golf, reading, and adventure games.

Rander started working at Energex in 2018 and is involved in the daily preparation of analyses, development plans, and audits, helping clients find the best solutions to their challenges.

Rander has completed a master’s program in energy technology at Karlsruhe Institute of Technology and Instituto Superior Técnico and holds a bachelor’s degree in thermal engineering from Tallinn University of Technology. He is a certified thermal energy engineer.

In his free time, Rander enjoys spending time in nature and engaging in sports. He also enjoys traveling, which allows him to explore new cultures and places.

Kristiina works at Energex as an energy technology expert, where she is involved in daily audits, development plans, and analysis preparation. Kristiina approaches every task with enthusiasm and positivity, striving to find the best solution for the client.

Kristiina earned her bachelor’s degree in Environmental, Energy, and Chemical Technology and her master’s degree in Energy Technology and Thermal Engineering from TalTech. Additionally, she has completed exchange semesters at the University of Twente in Enschede, where she expanded her knowledge in materials technology, chemistry, energy, and economics, and at Korea University in Seoul, focusing on energy policy.

Outside of work, Kristiina enjoys spending time in nature and reading.

Liina is a dedicated environmental technology researcher whose primary work involves conducting audits and analyses. Her daily tasks include assessing environmental impacts to ensure compliance with “do no significant harm” documentation, preparing climate resilience analyses, and evaluating the carbon footprint of organizations and projects. Recently, Liina has also started working on ESG (Environmental, Social, and Governance) topics, helping companies better understand and implement sustainability principles.

Liina holds a bachelor’s and master’s degree in chemical and environmental technology and has completed her Ph.D. in the same field, deepening her knowledge and skills. Her academic background and practical experience enable her to provide precise and effective solutions to environmental issues.

In her free time, Liina enjoys a variety of activities, spending time at the gym and in nature. She likes experimenting with new recipes, enjoying movie nights, and playing board games. Liina finds special joy in raising a playful cat and taking care of her houseplants.

Helen has been working at Energex as an applied physicist since the fall of 2023. She primarily handles energy and resource audits for companies. In addition, she analyzes the environmental impact of projects, with the results reflected in the “do no significant harm” document.

Helen studied applied physics at Tallinn University of Technology and holds a Master of Science degree. To better understand and comprehend the surrounding environment, she also studied business as a minor during her master’s program. Through internships and scientific thesis work during her studies, she has also encountered and enhanced her knowledge in the fields of medical technology and chemistry. Helen believes that one of the prerequisites for success is a broad knowledge base.

In her free time, Helen can likely be found on or near the sea. She holds qualifications as a sailing coach and competition official, but she is most often seen as an athlete. The weather at sea is never the same, requiring constant preparedness for surprises and continuous risk assessment and mitigation.

Jan has been working at Energex since 2022, focusing on energy and resource audits, as well as creating digitalization roadmaps and promoting automation.

In 2023, Jan earned a bachelor’s degree in Electrical Power Engineering and Mechatronics from Tallinn University of Technology. He has decided to continue his educational journey and is now pursuing a master’s degree in Electrical Power Engineering. His comprehensive knowledge of energy and solid understanding of mechatronics allow Jan to analyze production processes both in terms of energy management and the level of digitalization and automation.

As a former athlete, Jan has taken on the role of swimming coach to help nurture new athletes. Nowadays, he enjoys cycling more. In addition to physical activity, Jan values mental self-improvement by participating in university projects and contributing to the advancement of scientific research in Estonia.

Kristen joined the Energex team in 2019 as a project manager and began developing a digital diagnostics service. In his work, he persistently strives to identify the real core of the problem, determine which steps are essential for solving the problem, and which solutions are actually feasible and most beneficial for the client.

Kristen holds a bachelor’s degree in Aeronautics and Astronautics from the Technical University of Berlin and a master’s degree in Chemical and Environmental Technology from Tallinn University of Technology. He is currently pursuing his doctoral studies. His diverse education has enabled a versatile career – from software development in space technology to project management of maintenance work in the energy and chemical industries across Europe.

In his free time, Kristen spends time either with his family or in the forest with the Defense League fighters. In both cases, he always dreams about the company he is not currently with.

Katarina started working at Energex in 2022 as an executive assistant, during which she assisted with the quality control of almost all service projects offered by Energex and supported the execution of the company’s daily activities.

Currently, Katarina is in the audits and analyses team, where she manages and executes detailed energy and resource audits, as well as energy audit projects for large enterprises.

Katarina graduated from Tallinn University of Technology with a degree in Materials Technology and has knowledge of various materials. Additionally, she has worked as the managing editor of the Christian youth magazine Pluss, through which she gained experience in consolidating large amounts of information into a coherent and understandable whole.

Outside of work, Katarina enjoys giving guided tours of Tallinn’s Old Town, practicing culinary arts by trying new recipes, and engaging in handicrafts.

Mihkel joined the Energex team in the summer of 2019 and works in the digital team, where he helps to raise the level of digitalization and automation in Estonian industry and implement modern technologies on a daily basis. His contributions help companies become more efficient and competitive.

Mihkel graduated with a master’s degree in product development and production engineering, which has provided him with a strong foundation for a career in the technical and manufacturing fields. His education and experience have made him a specialist in his field, capable of offering innovative solutions and strategies.

In his free time, Mihkel can be found in the padel court, enjoying the sport and honing his skills. Traveling is also a great passion of his, allowing him to discover new places and cultures around the world.

Rasmus has been working at Energex since the fall of 2022 as a project manager for digitalization and automation.

Rasmus earned a bachelor’s degree in product development and production engineering from Tallinn University of Technology. He is currently pursuing a master’s degree in industrial engineering and management at Tallinn University of Technology, which supports his daily tasks in the fields of digitalization and automation.

Even in his free time, Rasmus cannot escape management, as he officiates football games, sails a yacht in the summer, and ice sails in the winter.

Raina joined the Energex digital team in November 2022, seeking new challenges. She heard about Energex from her good friend Andre.

Raina began her university studies at Tallinn University of Technology in bridge construction, but after a year, she realized it was not the right field for her. She then set her sights on the field of wood, plastic, and textile technology at the same university and earned a master’s degree in wood technology. Incidentally, there is another alumna of the same program in the digital team—Jaana, who is Raina’s coursemate!

Before joining Energex, Raina applied her acquired knowledge for three years as a technologist in the furniture industry, where she contributed to various interior design projects for European hotels and assisted in the company’s digitalization efforts to a small extent.

In her free time, Raina is interested in Japanese and South Korean culture, enjoying their films, series, and music. Recently, she had the opportunity to visit one of these countries. Additionally, Raina has completed a basic course in makeup artistry and is a big fan of skincare.

Jaana joined the Energex team in 2023. She heard about the open position for a production technology engineer from her former coursemate Raina, who is a member of the Energex digital team. Since their collaboration during university was smooth and their knowledge complemented each other, they both thought it made sense to continue working together professionally.

Jaana has always been fascinated by textile materials and the questions they raise. Therefore, it was a logical step for her to enroll in the wood, plastic, and textile technology program at Tallinn University of Technology, where she earned both a bachelor’s and a master’s degree, specializing in textile technology. During her studies, she gained comprehensive knowledge of both future materials and innovative production technologies. Jaana previously worked for five years at one of Estonia’s most modern garment manufacturing companies, gaining experience with the challenges of the textile industry in sustainable production and digitalization and automation. She has also contributed to local fashion brands through various educational internships.

Outside of work, Jaana is involved in developing and sewing clothing patterns and knitting. To bring balance to her life, she spends as much time as possible in nature and dreams of having her own garden with a greenhouse.

Ilja has been working at Energex as an expert in European Union grants since July 2023. His daily tasks involve preparing grant applications, reports, and payment requests.

Ilja holds a master’s degree in International Relations from the University of Tartu, where he developed excellent analytical skills and the ability to see the bigger picture. This enables him to understand and navigate the complex landscape of applying for European Union grants, helping clients achieve their goals and promote green and digital transitions. His background in social sciences has also been beneficial in Energex’s ESG assessment and strategy development, where he focuses on evaluating and analyzing governance and social aspects.

In his free time, Ilja enjoys walking and exploring the surroundings of Tallinn by bike. Additionally, due to his educational background, he is interested in politics and is also learning Japanese.

Karina joined Energex’s grants team as an environmental expert in the spring of 2024. She graduated from Tallinn University of Technology with a degree in Industrial Ecology and possesses knowledge in sustainability and circular economy. Previously, she worked in the climate and energy program at the Stockholm Environment Institute Tallinn Centre conducting applied research, and as a GIS specialist at Geospatial OÜ.

She spends her summers mostly on her home island of Hiiumaa, enjoying walks by the sea and berry picking in the forest. In winter, she prefers to test her knowledge by attending quiz nights and playing board games.

Gedili began working at Energex in the summer of 2024 as a data analyst in the grants team. She holds a degree in Integrated Natural Sciences from Tallinn University, with a specialization in physics. Her education has provided her with strong analytical thinking and problem-solving skills, which have proven invaluable in her role as a data analyst.

Before joining Energex, Gedili worked as an analyst at the startup company Forus Taxi, where she gained valuable experience in a fast-paced and innovative environment.

Gedili actively contributes to her personal development by participating in trivia games with friends and engaging in investment activities. She enjoys going to the gym, watching series, and practicing winter swimming during the colder months.

Hans joined Energex’s procurement team in 2021. Today, he is responsible for leading the procurement team, coordinating various support measure procurements, and organizing competitive tenders.

Hans holds a bachelor’s degree in electrical power engineering and mechatronics from Tallinn University of Technology, providing a solid foundation in understanding the technical aspects of various production equipment to ensure that all client needs are mapped out in the procurement process.

In his free time, Hans enjoys staying active. Outside of work, he can usually be found either lifting weights in the gym or chasing adrenaline on his snowboard and skis in the mountains.

Samuel joined the procurement team at Energex in September 2024 after completing his master’s studies in the joint program “Materials and Processes for Sustainable Energetics” at TalTech and the University of Tartu. He earned his bachelor’s degree in Materials Technology at TalTech. His engineering background greatly aids him in his daily work, allowing him to understand and support clients’ needs in acquiring new and more efficient equipment.

In his free time, Samuel is active and sporty—he practices classic boxing, occasionally plays basketball or football, and trains at the gym. He also enjoys traveling, listening to music, and watching good films.

Kärolin joined the Energex team in the fall of 2024 and works as a procurement lawyer. Her responsibilities at Energex include conducting procurements and providing legal advice.

Kärolin holds a bachelor’s and a master’s degree from the Faculty of Law at the University of Tartu. Discovering a deeper interest in procurement proceedings while studying procedural practice, Kärolin began working as a legal consultant at an international management consulting firm. There, she gained experience in handling public procurements, managing purchases for grant recipients, project management, and drafting legal analyses for over a year before joining Energex.

In her free time, Kärolin enjoys going to the cinema and painting. She also loves traveling and values simplicity and clarity in legal documents to reduce bureaucracy and ensure unambiguous understanding.