Hyperscale Data Center BMS Engineer

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

Benefits offered by this job

Equal opportunity employer

Inclusive environment

Job summary

DayOne is building a flagship hyperscale data center campus in Lahti, Finland. We seek a Building Management System Engineer to ensure efficient operation, maintenance, and optimization of BMS across data center facilities.

You’ll monitor performance, support upgrades, and drive reliable environmental conditions in a mission-critical environment. Key responsibilities include system maintenance, data analysis, project management, and cross-functional collaboration with IT and facilities teams.

Qualifications

• Degree in Electrical Engineering, Mechanical Engineering, or related field.
• 3–5 years in BMS engineering, preferably in data centers.
• Strong proficiency with BMS software and related tech.
• Certifications such as BMS, HVAC, or PMP are desirable.
• Excellent analytical and data-analysis skills.
• Clear communication and teamwork in multidisciplinary settings.
• English fluency; Finnish knowledge is a plus.

Responsibilities

• System Maintenance and Optimization: maintain/optimize BMS hardware and software for energy efficiency and reliability.
• Data Analysis and Reporting: analyze BMS data, report performance and maintenance metrics.
• Project Management: lead BMS upgrade/expansion projects with minimal disruption.
• Compliance and Safety: audit safety and regulatory compliance of BMS operations.
• Technical Support and Training: support operations and train staff on BMS operations.
• System Integration: integrate BMS with other building systems and IT/facilities teams.

Skills

BMS experience

Data analysis

Project management

Communication

Teamwork

Education

Degree in Electrical or Mechanical Engineering

Tools

BMS software

Job description

DayOne is building a flagship hyperscale data center campus in Lahti, Finland. We seek a Building Management System Engineer to ensure efficient operation, maintenance, and optimization of BMS across data center facilities.

You’ll monitor performance, support upgrades, and drive reliable environmental conditions in a mission-critical environment. Key responsibilities include system maintenance, data analysis, project management, and cross-functional collaboration with IT and facilities teams.