Junior Controller

CTS Group; Helsinki; On-site; EUR 36,000 - 48,000; Full time

Benefits offered by this job

Central Helsinki office

Competitive compensation package

International environment

Opportunities to grow

Public transport access

Job summary

CTS Nordics Oy, the Finnish subsidiary of CTS Group, is seeking a proactive Junior Controller to join a lean finance team in Helsinki. You will be the first point of contact for day-to-day finance questions, manage the purchase and customer invoicing, and support the monthly closing and group reporting.

Based in Helsinki city centre, you will collaborate closely with project teams and cost controllers, develop scalable processes, and gain exposure to AI-enabled tools and Power BI workflows in a

Qualifications

• Bachelor’s or master’s degree in finance or accounting.
• 1–3 years in accounting, AP, auditing or finance roles.
• Fluent Finnish and professional English, both written and spoken.
• Proactive, thorough and service-minded with ownership mindset.
• Strong Excel skills; Power BI experience is a plus.

Responsibilities

• Manage outsourced purchase invoice process with external partner.
• Serve as service-minded finance contact for project teams and cost controllers.
• Prepare and issue customer invoices.
• Support monthly closing and group reporting with Country Finance Lead.
• Investigate finance issues and drive them to resolution.
• Maintain and update financial reports.
• Perform ad hoc financial analysis for Country Finance Lead and group finance.
• Contribute to building a scalable finance function and new accounting processes.

Skills

Excel skills

Analytical thinking

Ownership mindset

Prioritisation

Communication

Education

Bachelor’s or Master’s in finance / accounting

Tools

Power BI

Job description

Junior Controller

CTS Nordics Oy is the Finnish subsidiary of CTS Group, one of Europe’s leading design and build contractors specialising in high-tech data centres. Finnish operations generated approximately €200 million in revenue in 2025 and continue to expand in step with demand in the digital infrastructure sector.

About the role

We are looking for a proactive and reliable Junior Controller to join our lean Finnish finance team. You will work closely with the Country Finance Lead and act as the first point of contact for the many day-to-day questions and ad hoc issues that come into finance from across the business.

A key part of the role is managing our purchase invoice process. Invoice processing is outsourced to our external accounting partner, and with a high invoice volume, you will make sure the process runs smoothly and that issues get resolved. Alongside this, you will handle customer invoicing and support the Country Finance Lead in the monthly closing and group reporting. You will also provide service to our project teams and construction site cost controllers. The role suits someone who enjoys a fast pace, takes ownership and sees things through from start to finish.

The role is based at our office in Helsinki city centre. Our whole Helsinki team works together at the office, as close day-to-day collaboration across the team and project organisation is at the heart of how we work, with some flexibility when needed.

Your main responsibilities

• Manage the outsourced purchase invoice process with a high invoice volume, together with our external accounting partner.
• Serve as a service-minded finance contact for project teams and cost controllers, resolving invoice issues and other finance queries.
• Prepare and issue customer invoices.
• Support the Country Finance Lead in the monthly closing and group reporting.
• Investigate and solve day-to-day finance issues as they arise, and see them through to resolution.
• Maintain and update financial reports.
• Carry out ad hoc financial analysis for the Country Finance Lead and group finance.
• Take part in building a scalable finance function and in development projects, such as the implementation of a new accounting system and finance processes.

What we expect from you

• A bachelor’s or master’s degree in finance, accounting or a related field.
• 1–3 years of experience in accounting, accounts payable, auditing, controlling or other finance roles.
• Basic knowledge of Finnish accounting and VAT.
• A proactive, thorough and service-minded way of working.
• Ability to take ownership of tasks and see them through from start to finish.
• Ability to manage and prioritise several tasks and ad hoc requests at the same time in a fast-paced environment.
• Good Excel skills and a willingness to learn new tools. Experience with Power BI or AI tools is an advantage but not required.
• Experience working with an external accounting partner or shared service centre is an advantage.
• Experience from the construction industry or other project-based businesses (for example infrastructure, real estate or data centres) is an advantage but not required.
• Fluent Finnish and professional-level English, both spoken and written.

What we offer

• An opportunity to join a fast-growing, international high-tech company at the forefront of the European data centre sector.
• A broad, hands-on role with direct exposure to the Country Finance Lead and group finance.
• The chance to help build a scalable finance function and take part in change projects from the ground up.
• Room to grow your skills and responsibilities as the company and the function develop.
• A professional, international and collaborative environment.
• A centrally located office in Helsinki city centre, easy to reach by public transport.
• A competitive compensation package with attractive benefits.