Fire Service Engineer

DayOne; Lahti; On-site; EUR 60,000 - 90,000; Full time

Job summary

DayOne in Lahti is seeking a Fire Service Engineer to lead the design, installation, operation and maintenance of fire protection and life safety systems across our hyperscale data centers. You will ensure compliance with local and international standards and drive reliable protection in emergencies.

The role requires an engineering qualification and proven experience in fire protection for large facilities, with strong collaboration with building services and external contractors.

Qualifications

• Proven experience in fire protection engineering for large-scale facilities.
• Strong knowledge of fire protection systems and standards.
• Familiarity with local fire safety codes and regulations.

Responsibilities

• Oversee design, installation, and maintenance of fire protection systems in data centres.
• Ensure compliance with health, safety, and environmental regulations and audits.
• Plan and conduct regular maintenance and testing of fire systems.
• Coordinate with Building Services and contractors to integrate safety systems.
• Respond to alarms, investigate incidents, and apply corrective actions.

Skills

Fire protection engineering

Large-scale facilities

Fire protection systems

Regulations knowledge

English & Finnish communication

Education

Technical qualification in Engineering

Job description

Join DayOne – Shaping the Future of Data Infrastructure

DayOne is a global leader in the development and operation of high-performance data centers. As one of the fastest-growing companies in the industry, we’ve built a robust presence across Asia and Europe — and we’re just getting started.

As we expand into new international markets, we’re looking for talented, driven individuals to join us on this exciting journey. This is more than a job — it’s an opportunity to be a key contributor to our dynamic team and help shape the future of global data infrastructure.

If you're passionate about innovation, technology, and growth, we invite you to be part of DayOne’s next chapter.

About the role

DayOne is building its flagship hyperscale data center campus in Lahti, on a former industrial site in Kiveriö. The campus is designed to use Finland's naturally cool climate for free cooling, with air-cooled chillers that remove the need for freshwater cooling. Join the Lahti team early and help shape how a campus of this scale is built, commissioned, and run.

As a Fire Service Engineer you are responsible for the design, installation, operation, and maintenance of fire protection and life safety systems within our hyperscale data centres. This role ensures that all fire systems are compliant with relevant regulations, operate efficiently, and can provide optimal protection in the event of an emergency.

Your key responsibilities will include,

Fire Protection System Management

• Overseeing the design, installation, and maintenance of fire protection systems, including sprinklers, fire alarms, suppression systems, and emergency lighting.
• Ensuring all fire systems are fully operational and compliant with local, national, and international fire safety standards and regulations.
• Regularly inspecting and testing fire protection systems to ensure they are in proper working order and meet all safety requirements.

Compliance and Safety

• Ensuring that all fire protection measures comply with health, safety, and environmental regulations, and industry best practices.
• Maintaining up-to-date documentation for all fire safety systems and procedures, ensuring readiness for audits and inspections.
• Conducting risk assessments and developing fire safety plans, including evacuation procedures and emergency response protocols.

Maintenance and Testing

• Planning and executing regular maintenance and testing schedules for all fire systems, coordinating with external contractors as necessary.
• Troubleshooting and resolving any issues with fire protection systems promptly to minimise downtime and ensure continuous safety.
• Monitoring and reviewing fire system performance, recommending upgrades or improvements where necessary.

Collaboration and Coordination

• Working closely with the Building Services Manager, operations teams, and external contractors to ensure seamless integration of fire safety systems with other building services.
• Providing training and guidance to staff on fire safety practices and emergency procedures.
• Participating in the planning and execution of fire drills and emergency preparedness exercises.

Incident Management

• Responding to fire alarms and other emergency situations, providing technical expertise to resolve issues quickly and effectively.
• Investigating fire incidents, determining root causes, and implemening corrective actions to prevent future occurrences.

Requirements

Technical Skills

• Technical qualification in Engineering
• Proven experience in fire protection engineering, with a focus on large-scale facilities such as data centres, commercial buildings, or industrial sites.
• Strong knowledge of fire protection systems, including sprinklers, fire alarms, and suppression systems.
• Familiarity with relevant local fire safety codes and regulations.

Soft Skills

• Effective communication skills and the ability to work effectively with multidisciplinary teams.
• Ability to work in a fast-paced operational environment.
• Proactive, solutions-oriented mindset with high integrity and a collaborative working style.
• Proficiency in English and Finnish, both written and spoken.

Why Join DayOne?

• Be a part of a company scaling fast in a booming industry.
• Work on an international stage with global leaders.
• Shape your career in a culture that values curiosity, agility, and bold thinking.

DayOne is proud to be an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.