STACK Infrastructure US · Manassas, VA
Critical Operations Technician II at STACK Infrastructure US — Manassas, VA
Full-timeManassas, VAPosted 2026-07-15Apply on Workday
Full job description
THE COMPANY:
THE POSITION:
Mechanical responsibilities will include working on chilled water systems and components, HVAC systems such as rooftop units, CRAC/CRAH units, humidification systems, fan wall systems, air-cooled chillers, and central plant operations.
Electrical responsibilities will include working on electrical/critical power distribution from the Utility/Generator main switchgear through the UPS systems out to the customer load, UPS, PDU, and RPP cabinets.
Fire Life Safety responsibilities will include monitoring wet sprinkler systems and pre-action sprinkler systems as well as their associated detection devices.
- Implement and follow the standardized culture of always working safely across all STACK data centers
- Operate, monitor, maintain, and respond to abnormal conditions in facility systems (Electrical, Mechanical, Building Monitoring, and Control)
- Track and trend operational characteristics
- Provide feedback to management on the effectiveness of existing standards and processes
- Work with the Critical Operations Manager to complete an aggressive preventive and predictive maintenance schedule
- Assist with the database management of maintenance discrepancies and work with site management to resolve site issues based on priorities
- Ensure data center operates at maximum operational efficiency, including analyzing operating conditions, recommending new technologies, and improving overall efficiency
- Manage systems to avoid unplanned, customer-impacting outages
- Follow direction regarding the data floor and back-of-house mechanical loading capacity to ensure cooling system efficiency
- Coordinate and oversee power installations and upgrades
- Navigate and utilize a CMMS system
- Use developed procedures to solve problems
- Assist in asset and consumable inventory management
- Track and properly label all equipment per established procedures
- Provide day-to-day exceptional customer service and support
- Incident escalation, response, and follow-up report writing
- Maintain and complete regular facility and security tours documenting and responding to issues
- Provide applied mechanical and integrated control expertise for the entire data center
- Serve in a technical writing capacity for the derivation of procedures for preventative or corrective maintenance activities
- May be required to take on on-call duties outside of normal working hours
- Other duties as required by STACK (job duties, roles, and responsibilities are subject to change over time)
THE DETAILS:
- Location: Northern Virginia
- Travel: None or less than 5%
- Benefits: Healthcare, Dental Care, Vision Insurance, Life Insurance, Paid Time Off, Paid Leave Programs
- Must be eligible to work in the United States
- Must pass a comprehensive background screening
- Work hours may vary based upon business needs
MUST-HAVE QUALIFICATIONS:
- High school diploma or equivalent
- Minimum of 3–5 years’ experience in a data center or other related mission-critical operations role
- Experience working with Microsoft Office applications and other database housing software
- Ability to handle multiple tasks and perform well in stressful situations
- Strong understanding of electrical and mechanical systems used in a data center environment (UPS, Transformers, PDUs, RPPs, Chillers, CRAH, CRAC, STS, ATS, Pre-action systems)
- Strong knowledge of NFPA70e, NFPA72, NFPA25, and fire life safety compliance standards
- Familiarity and experience in data center trending and analysis, with the ability to rapidly learn and use PC-based site monitoring systems
- United States Navy Nuclear Engineering – preferred
- Bachelor’s Degree or equivalent work experience – preferred
- Occasionally required to stand, walk, sit, use hands to handle, reach or feel objects, climb stairs, balance, stoop or kneel, talk, see at close range, and hear for extended periods of time
- Must be able to lift and/or move up to 25 pounds
- Willingness to work outside normal business hours, including weekends, late nights, holidays, and on-call support
- Comfortable working in a high-stress, fast-paced environment with shifting priorities
THIS MIGHT BE RIGHT FOR YOU IF:
- You are a strong communicator, you are persuasive and clear, blending analytics with experience in decision-making.
- You do not get flustered easily. You can juggle multiple priorities while balancing urgent requests with shifting timelines and deliverables.
- You are a team builder. You take the time to understand and develop the strengths of your resources while formulating long-term plans for the growth and success of the team.
- You are naturally curious and driven toward continual improvement. While you celebrate your successes, you take time to review and analyze campaigns for future learning.
WHY STACK?
- We offer a competitive compensation package with strong benefits, including medical, dental, and vision insurance, a 401K program, flexible spending accounts – even a cell phone subsidy.
- We foster a culture of appreciation, including peer-to-peer recognition and rewards programs.
- Fun is part of our DNA, with events, game nights, happy hours, and barbecues.
- We’re growing – this is a great time to join and make an impact!