Sr. Engineer - Critical Facilities

Job Overview 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. Job Responsibilities Core hours : Monday‑Friday, 8:00 a.m. – 5:00 p.m. PT, plus participation in an on‑call rotation. 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. Education and Work Experience 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 of experience in mechanical/HVAC, electrical, or a combination of the two (Preferred). 4‑7 years of experience in data center facilities operations, working with equipment mentioned above, preferably in the telecommunications industry (Preferred). 4‑7 years of 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. Knowledge, Skills and Abilities Support and lead operations and construction for large‑scale, high‑availability critical infrastructure, including: AC and DC power systems : UPS, generators, rectifiers, and low‑ to medium‑voltage distribution supporting megawatt‑scale infrastructure and continuous availability. Cabinet‑level power engineering : Design and support failover and redundancy strategies to achieve zero downtime from utility through end use. High‑performance, high‑density cooling : From rooftop units to critical and contained cooling systems serving both people spaces and high‑density infrastructure. Building envelope / property management : Oversight in a multitenant facility , coordinating building systems and services to meet critical operation needs. Fire and life safety systems : Pre‑action and wet sprinklers, nitrogen sprinklers, gaseous fire suppression systems, and VESDA / prealert detection and discharge systems. Building Management Systems (BMS) and capacity tools : Monitoring, control, and failover operations for power and environmental systems to sustain emergency operations. Physical security systems : Security cameras, badge access, and related controls across the facility. Project management : Partner with A/E firms, vendors, contractors, and internal stakeholders—from largescale consulting engagements to individual product/user requests—to evaluate and implement new technologies and critical systems changes. Soft Skills Conceptualize and co‑design solutions with customers , solving facility‑related challenges in a development environment with constant demand for innovation and collaboration. Support a wide variety of needs—from infrastructure for radios, devices, nonstandard equipment, and lab configurations to both temporary and permanent solutions. Listen deeply to customers, translate feedback into clear, actionable solutions, and pick up cues that help you design approaches tailored to tactical priorities . Work to future‑proof every project as much as possible within priority, schedule, and budget constraints , recognizing the pace of change in lab environments. Manage multiple priorities and dynamic customer demands while appropriately balancing facility risk, particularly in a lab setting that can be more variable than a traditional hardened facility. Communicate effectively at all levels of leadership and engineering , translating complex technical issues and contributing constructively in each forum. Work effectively with an extremely culturally diverse customer base , actively supporting and modeling T-Mobile's Diversity, Equity & Inclusion principles in how you collaborate and make decisions. Licenses and Certifications Certified Reliability Leader (Preferred) Uptime Institute (Preferred) LEED, CFM, FMP, MCE (Preferred) Travel Travel Required: Yes DOT Regulated DOT Regulated Position: No Safety Sensitive Position: No Base Pay Range Base Pay Range: $90,300 – $162,800 Corporate Bonus Target: 15% Equal Opportunity Statement T-Mobile USA, Inc. is an Equal Opportunity Employer. All decisions concerning the employment relationship will be made without regard to age, race, ethnicity, color, religion, creed, sex, sexual orientation, gender identity or expression, national origin, religious affiliation, marital status, citizenship status, veteran status, the presence of any physical or mental disability, or any other status or characteristic protected by federal, state, or local law. Discrimination, retaliation or harassment based upon any of these factors is wholly inconsistent with how we do business and will not be tolerated. View email address on click.appcast.io #J-18808-Ljbffr T-MOBILE USA, Inc.