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Sr. Engineer – Critical Facilities

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T-Mobile

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Location:
United States , Bellevue

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Contract Type:
Employment contract

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Salary:

90300.00 - 162800.00 USD / Year

Job Description:

This role supports a highly dynamic lab environment responsible for the assurance, development, and lifecycle management of network infrastructure technologies. The lab operates as a critical testing ground where platforms and services are validated, deployed, and evolved to support the broader network experience. In this position, you’ll partner with cross-functional teams including Lab Engineering, Marketing, Operations, Security, Technology, and key vendor partners. The environment is fast-paced and collaborative, requiring adaptability and strong coordination across multiple stakeholders. Unlike a traditional data center, this lab setting is continuously evolving, with frequent changes driven by new technologies and business needs. As a Sr. Engineer – Critical Facilities, you’ll lead operations and construction support for an enterprise scale critical facility. You’ll own vendor maintenance and repairs, emergency and fault response, and day to day operations of power, cooling, controls, and life safety systems that must be available 24x7. You’ll balance hands on engineering work with vendor management, project leadership, and customer interaction, ensuring the lab can safely and reliably support current and next generation network technologies.

Job Responsibility:

  • Conduct daily site walks to review and QA ongoing tickets (maintenance, break/fix, customer projects), confirming vendor and customer needs are fully met
  • Direct and manage vendors for upgrades and Operations‑initiated projects, ensuring quality, safety, and adherence to scope, schedule, and budget
  • Maintain vigilant safety awareness in a complex, high‑risk environment with critical infrastructure and diverse occupants
  • Identify, troubleshoot, and drive resolution for tactical issues discovered during walks or reported by customers, seeing them through to final solution
  • Participate in construction and project meetings, collaborating as both service provider and customer to ensure Operational and critical facility requirements are represented
  • Share in an on‑call rotation with a teammate to provide 24x7 emergency response coverage for facility‑impacting events
  • Oversee day‑to‑day operation of facility infrastructure in close collaboration with vendors, maintaining resilience and performance targets
  • Produce routine, periodic, and ad hoc reports as requested (operations, incidents, capacity, risk, etc.)
  • Apply strong budget awareness to maintenance, projects, and recommendations, dynamically balancing cost, risk, and customer need
  • Dedicate at least 20% of your time to “moving the bar forward” through continuous improvement, innovation, and initiatives that increase resiliency, efficiency, and customer experience

Requirements:

  • Bachelor's Degree plus 3 years of related work experience OR advanced degree with 1 year of related work experience OR combination of education and experience deemed equivalent (Required)
  • Acceptable areas of study include Engineering, facilities, or related field (Preferred)
  • 4-7 years' Experience in mechanical/HVAC, electrical, or a combination of the two (Preferred)
  • 4-7 years' Experience in data center facilities operations, working with equipment mentioned above, preferably in the telecommunications industry (Preferred)
  • 4-7 year's Experience managing vendor work and quality control (Preferred)
  • 4–7 years of direct experience operating, designing, constructing, maintaining, and managing large‑scale production data centers or critical facilities at the enterprise level
  • Demonstrated engineering leadership across disciplines required to sustain continuous availability (power, cooling, controls, fire/life safety, etc.)
  • Proven experience in critical facility operations and construction support, including vendor management, maintenance programs, fault analysis, and emergency response
  • Experience in lab, R&D, or development environments supporting evolving technology stacks is a strong plus
  • At least 18 years of age
  • Legally authorized to work in the United States

Nice to have:

  • Certified Reliability leader (Preferred)
  • Uptime Institute (Preferred)
  • LEED, CFM, FMP, MCE (Preferred)
What we offer:
  • competitive base salary and compensation package
  • annual stock grant
  • employee stock purchase plan
  • 401(k)
  • free, year-round money coaches
  • annual bonus or periodic sales incentive or bonus
  • medical, dental and vision insurance
  • flexible spending account
  • paid time off
  • up to 12 paid holidays
  • paid parental and family leave
  • family building benefits
  • back-up care
  • enhanced family support
  • childcare subsidy
  • tuition assistance
  • college coaching
  • short- and long-term disability
  • voluntary AD&D coverage
  • voluntary accident coverage
  • voluntary life insurance
  • voluntary disability insurance
  • voluntary long-term care insurance
  • mobile service & home internet discounts
  • pet insurance
  • commuter and transit programs

Additional Information:

Job Posted:
April 24, 2026

Employment Type:
Fulltime
Work Type:
On-site work
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