IT Infrastructure Specialist (process lead)

Adven is a dynamic energy group, driving the energy transition by developing sustainable and competitive solutions in partnership with customers, municipalities, and suppliers. Together, our +600 employees provide households and businesses with heating based on district heating and geoenergy, and industries with steam, heating, cooling and infrastructure services that improve resource efficiency. We have a long and solid track record with more than 50 years of experience within the field. Today we operate over 350 sites in Europe with a total energy volume of 6 TWh. Our annual turnover is €409, and our total balance sheet €1.466 m.

We are looking for a IT INFRASTRUCTURE SPECIALIST (process lead) to join our IT team in Tallinn

The purpose of this role is to oversee the design, development, and maintenance of the organization’s IT infrastructure and security environment across on-premises and cloud platforms. Ensure system reliability, performance, and strong cybersecurity while balancing operational tasks with strategic planning.

Key Responsibilities

• Manage and implement IT infrastructure across local and cloud environments. Ensure high availability, scalability, and IT security of systems and services.
• Oversee network architecture and connectivity with internal and external partners.
• Secure cybersecurity measures including patching, backups, access control, and network security.
• Ensure compliance with standards and regulations such as ISO 27001 and NIS2.
• Support risk assessments, incident response, and ongoing security improvements.
• Maintain clear and accurate technical documentation.
• The role involves close collaboration with regional and global IT teams to harmonize solutions and ensure a unified technical environment across multiple countries. It also requires strong cooperation with other business functions to align technical capabilities with operational needs and strategic goals.
  
  

To succeed in this role

This position requires a strong balance of technical expertise, project and process management capabilities, and a proactive approach to safeguarding the organization’s IT environment.

• Education in IT is preferred
• Experience in IT infrastructure and networking
• Good understanding of information security
• Experience collaborating with both internal and external stakeholders
• Fluent in Estonian and with good verbal and written English skills, is required in daily work
• A valid driver’s license (car)
• business travel may occur, mostly local within Estonia
  
  

Technologies You Should Be Familiar With

• Cloud environment - Hybrid AD, Azure
• Collaboration - MS Teams, Office 365
• Virtualization - VMware
• Remote access solutions - Citrix, VNC, TeamViewer, MS RDP
• Firewall - Cisco Management
• General understanding of Industrial Control Systems, f.e, SCADA & PLC
  
  

You will be part of

an international fast-growing company where you are challenged with interesting and diverse tasks and development projects. You are creating a real business value, working actively together, and learning from professional colleagues in all countries we operate. You will find a development-oriented and supportive work culture, a great work environment, and clear targets. We offer you a diverse package of employee benefits and you are very welcome to our great teambuilding events!

At Adven you get to work with the best teams and people. We are passionate about continuous improvement and together we deliver outstanding results with great drive and energy. Inclusive and diverse teams enable us to capture the diversity of perspectives when solving the challenges we face. When we grow, you grow and develop with us.

To apply

Please submit your application and CV 09.01.2026. If you have any questions regarding the process or the position, please get in touch with CV-Online Head of Recruitment Andra Rand [email protected]

At Adven we find diversity and inclusion important, and we value the benefits brought to our company when aiming for equality in gender, ethnic background, and cultural diversity.

Adven is a dynamic energy group, driving the energy transition by developing sustainable and competitive solutions in partnership with customers, municipalities, and suppliers. Together with our 600 employees we provide industries with steam production, heating, cooling, and infrastructure services that promote resource efficiency. We also supply district heating to households and businesses, and geothermal energy solutions to large properties. With more than 50 years of solid experience in the energy sector, we currently operate around 350 sites across the Nordic and Baltic countries.

www.adven.com