AT&T · 13 hours ago
Lead System Engineering
Saint Louis, Missouri
Full-time
Onsite
Senior Level, Lead/Staff
$141K/yr - $212K/yr
5+ years expAT&T is a leading communications and technology company that connects the world. The Lead System Engineering Manager will oversee the performance, reliability, and scalability of mission-critical data center infrastructure, ensuring operational excellence and driving innovation across multiple facilities.
CollaborationCommunications InfrastructureMobileService IndustryTelecommunicationsWireless
No H1B
Responsibilities
Lead the daily operations of multiple geographically distributed, mission critical data centers with a focus on up-time, safety, and performance
Ensure 24x7x364 operational readiness through robust incident response, preventive maintenance, and continuous monitoring of critical systems
Lifecycle of capital infrastructure projects, from requirements gathering and design through commissioning and handover
Manage large-scale upgrades and retrofits to support capacity growth, energy efficiency, and evolving technology needs
Oversee critical systems including electrical distribution, UPS, diesel generators, HVAC, fire/life safety, BMS, and fuel systems
Partners with internal stakeholders (Engineering, IT, Real Estate, Finance) and external vendors to deliver prospects on-time, within budget, and with zero distribution to live environments
Lead performance management of third-party facility management providers, ensuring adherence to SLAs, KPIs, and compliance standards
Drive operational excellence through automation, predictive maintenance, and data-driven decision-making
Identify and implement energy efficiency and sustainability initiatives aligned with corporate goals
Lead root cause analysis and post-incident reviews for infrastructure related events
Ensure compliance with all regulatory, environmental, health, and safety standards (e.g. NFPA, ASHRAE, OSHA)
Qualification
Required
5-8 years of related experience in mission critical data center operations, engineering or construction management
Technical Career Pathway (TCP) role
Provide technical support for on-site engineering operations 24x7x365 by phone for emergencies
Preferred
7+ years of experience in mission-critical data center operations, engineering, or construction management
Experience managing large-scale, high-availability environments in telecom, cloud, or hyperscale data center settings
Familiarity with IT infrastructure, networking, and cloud service delivery models is a plus
Aligns infrastructure planning with long-term business and technology goals
Delivers consistent, high-quality results in high-pressure environments
Deep understanding of critical infrastructure systems and emerging technologies
Build strong relationships and drives accountability across external teams
Leads teams through transformation, innovation, and continuous improvement
Effectively communicates with technical and non-technical stakeholders, from field engineers to senior executives
Prioritizes service availability and end-user impact in every decision
Bachelor's of Science degree in Mechanical or Electrical Engineering or equivalent experience preferred
PMP, IFMA, BOMI, Uptime Institute ATD/ATS, or Professional Engineer (PE) license preferred
Benefits
Medical/Dental/Vision coverage
401(k) plan
Tuition reimbursement program
Paid Time Off and Holidays (based on date of hire, at least 23 days of vacation each year and 9 company-designated holidays)
Paid Parental Leave
Paid Caregiver Leave
Additional sick leave beyond what state and local law require may be available but is unprotected
Adoption Reimbursement
Disability Benefits (short term and long term)
Life and Accidental Death Insurance
Supplemental benefit programs: critical illness/accident hospital indemnity/group legal
Employee Assistance Programs (EAP)
Extensive employee wellness programs
Employee discounts up to 50% off on eligible AT&T mobility plans and accessories, AT&T internet (and fiber where available) and AT&T phone
Company
AT&T
AT&T is a telecommunications company that provides wireless communications, internet and digital television services.
10001+ employees
Funding
Current Stage
Public CompanyTotal Funding
$5.04BKey Investors
National Telecommunications and Information Administration
2025-09-19Post Ipo Debt· $5B
2024-02-12Grant· $42.3M
2023-01-19Grant· $2.2M
Leadership Team
Jeremy Legg
Chief Technology Officer
Pascal Desroches
Senior Executive Vice President and Chief Financial Officer
Recent News
Dallas Morning News
2026-01-12
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2026-01-11
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