Data Center Technician L3
Milestone Technologies, Inc.
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Job summary
Milestone Technologies, Inc. is seeking a Data Center Technician L3 to act as a senior technical resource across large-scale AI and accelerated computing environments.
You will diagnose and repair complex hardware issues, supervise deployment and validation activities, and guide junior technicians to ensure high availability and operational excellence. The role emphasizes leadership in incident response, asset lifecycle management, and collaboration with customer engineering teams, OEM partners,
Qualifications
- High school diploma or equivalent.
- 5+ years in data center operations or infrastructure support.
- Experience troubleshooting server/storage/network hardware and performing complex repairs.
- Ability to lead technical activities and mentor junior personnel.
Responsibilities
- Lead deployment, integration, and validation of servers, accelerators, networking gear, and supporting infrastructure.
- Diagnose complex hardware issues, perform advanced repair procedures, and guide escalation efforts.
- Support accelerator and AI hardware platforms with validation, burn‑in, and performance checks.
- Manage asset lifecycle tasks including serialization, RMA workflows, and inventory accuracy.
- Provide site leadership input during incidents, change management, and operational reviews.
Skills
Education
Job description
Milestone Technologies is a global IT managed services firm that partners with organizations to scale their technology, infrastructure and services to drive specific business outcomes such as digital transformation, innovation, and operational agility. Milestone is focused on building an employee-first, performance-based culture and for over 25 years, we have a demonstrated history of supporting category-defining enterprise clients that are growing ahead of the market. The company specializes in providing solutions across Application Services and Consulting, Digital Product Engineering, Digital Workplace Services, Private Cloud Services, AI/Automation, and ServiceNow. Milestone culture is built to provide a collaborative, inclusive environment that supports employees and empowers them to reach their full potential.
Milestone Technologies is a global IT managed services firm that partners with organizations to scale their technology, infrastructure and services to drive specific business outcomes such as digital transformation, innovation, and operational agility. Milestone is focused on building an employee-first, performance-based culture and for over 25 years, we have a demonstrated history of supporting category-defining enterprise clients that are growing ahead of the market. The company specializes in providing solutions across Application Services and Consulting, Digital Product Engineering, Digital Workplace Services, Private Cloud Services, AI/Automation, and ServiceNow. Milestone culture is built to provide a collaborative, inclusive environment that supports employees and empowers them to reach their full potential.
Our seasoned professionals deliver services based on Milestone’s best practices and service delivery framework. By leveraging our vast knowledge base to execute initiatives, we deliver both short-term and long-term value to our clients and apply continuous service improvement to deliver transformational benefits to IT. With Intelligent Automation, Milestone helps businesses further accelerate their IT transformation. The result is a sharper focus on business objectives and a dramatic improvement in employee productivity. Through our key technology partnerships and our people-first approach, Milestone continues to deliver industry-leading innovation to our clients. With more than 3,000 employees serving over 200 companies worldwide, we are following our mission of revolutionizing the way IT is deployed.
The Data Center Technician L3 serves as a senior technical resource responsible for advanced deployment, diagnostics, break‑fix operations, hardware lifecycle management, and operational support within large‑scale AI and accelerated computing environments. This role functions as a technical leader within the data center, providing subject matter expertise across compute, accelerators, networking, and supporting infrastructure platforms.
The Data Center Technician L3 is expected to independently diagnose and resolve complex hardware issues, execute advanced repair procedures, support commissioning and deployment activities, and provide technical guidance to junior personnel. The role serves as a primary escalation point for technical issues and works closely with customer engineering teams, OEM partners, network teams, and site leadership to maintain operational excellence.
This position is critical to maintaining infrastructure availability, reducing repair times, improving deployment quality, and supporting the reliability of mission‑critical AI computing environments.
- Lead installation, integration, and deployment activities for servers, accelerator platforms, networking equipment, and supporting infrastructure.
- Validate deployment quality against customer specifications, rack elevations, port maps, and deployment standards.
- Execute and oversee structured cabling activities, including copper and fiber infrastructure deployments.
- Perform deployment audits, acceptance testing, and operational readiness reviews.
- Support commissioning, site expansion, and infrastructure turnover activities.
- Perform advanced troubleshooting and root cause analysis of server, accelerator, storage, and networking hardware failures.
- Execute customer-directed repair procedures and complex hardware diagnostics.
- Perform FRU replacement activities across compute, accelerator, and network platforms.
- Support firmware upgrades, hardware qualification testing, and post‑maintenance validation.
- Serve as the technical lead during hardware incidents and escalations.
- Drive rapid restoration of service while ensuring quality and procedural compliance.
- Support GPU, TPU, accelerator, and high‑density compute platforms.
- Execute return‑to‑service validation and performance verification activities following repairs.
- Assist customer engineering teams with hardware investigations and diagnostics.
- Support hardware qualification, burn‑in, and acceptance testing activities.
- Maintain awareness of platform‑specific repair procedures and operational requirements.
- Oversee serialized asset tracking and lifecycle management activities.
- Manage complex RMA workflows, including diagnostics, documentation, chain‑of‑custody, and return processing.
- Validate asset reconciliation and inventory accuracy.
- Support spare parts planning and inventory optimization efforts.
- Ensure compliance with media handling and asset disposition requirements.
- Support physical‑layer network operations, including fiber plant infrastructure, optics replacement, patching, and connectivity validation.
- Troubleshoot cabling, optics, and hardware‑related network issues.
- Support OOB (Out‑of‑Band) management infrastructure and console access systems.
- Execute physical network changes under customer engineering direction.
- Assist with network deployment and expansion initiatives.
- Serve as a technical escalation point for Data Center Technicians and operational personnel.
- Provide coaching, mentoring, and technical development support to L1 and L2 technicians.
- Assist with onboarding, training, and qualification programs.
- Promote adherence to technical standards, procedures, and best practices.
- Lead technical reviews and knowledge‑sharing activities.
- Participate in major incident response and restoration efforts.
- Assist site leadership with technical assessments and risk evaluations.
- Support operational readiness reviews and maintenance planning activities.
- Provide technical expertise during change management and maintenance execution.
- Ensure timely and accurate escalation of complex technical issues.
- Maintain detailed records of diagnostics, repairs, deployments, and validation activities.
- Support development and refinement of technical procedures and work instructions.
- Review deployment documentation, asset records, and maintenance records for accuracy.
- Ensure compliance with customer quality standards and audit requirements.
- Contribute to continuous improvement initiatives focused on reliability and operational efficiency.
- Adhere to all site safety, security, and operational procedures.
- Support Environmental Health & Safety (EHS) initiatives and safe work practices.
- Ensure compliance with customer security controls and access requirements.
- Participate in audits, inspections, and operational compliance activities.
- Promote a culture of safety, accountability, and operational excellence.
- High school diploma, GED, or equivalent experience.
- 5+ years of experience supporting data center operations, hardware deployment, or infrastructure support environments.
- Extensive experience troubleshooting and repairing server, storage, and networking hardware.
- Experience executing complex technical procedures with minimal supervision.
- Strong understanding of hardware diagnostics, component replacement, and system validation.
- Demonstrated ability to lead technical activities and mentor junior personnel.
- Experience supporting hyperscale, AI, HPC, cloud, or enterprise data center environments.
- Experience supporting GPU, TPU, accelerator, or high‑density compute infrastructure.
- Familiarity with liquid‑cooled computing environments and advanced rack architectures.
- Strong knowledge of structured cabling systems, fiber optics, and physical‑layer networking.
- Experience supporting OOB management systems and console infrastructure.
- Familiarity with asset management, inventory control, and RMA processes.
- Vendor certifications or data center certifications preferred.
- Experience working within 24x7 mission‑critical operational environments.
- Ability to safely lift, push, pull, and move items weighing up to 50 pounds.
- Walk, squat, and climb for extended periods of time.
- Ability to work in environments that may include areas reaching temperatures of 90+ degrees Fahrenheit at times.
- Travel required up to 25%.
- Valid REAL ID or other federally accepted identification for U.S. travel.
- Reliable transportation for moving between locations on campus.
- Ability to work overtime and/or weekends if necessary.
- Ability to use power and non‑power hand tools.
- Ability to work comfortably in a loud, noisy environment.
- Ability to wear appropriate PPE as required.
This position operates within a mission‑critical data center environment supporting advanced AI and accelerated computing infrastructure. Work includes deployment, diagnostics, maintenance, repair, validation testing, and technical leadership activities involving large‑scale compute, networking, and accelerator platforms.
The Data Center Technician L3 serves as a senior technical resource responsible for driving operational reliability, accelerating problem resolution, mentoring technical personnel, and ensuring the successful execution of customer‑directed operational activities.
This position is designated for Export Control Screening (ECS) and may require access to hardware, software, technology, technical data, facilities, systems, or customer environments subject to U.S. export control laws, including the EAR and, where applicable, the ITAR. Following an offer, the selected candidate must complete Milestone Technologies’ Export Control Compliance Verification Form and certification and provide any requested supporting documentation. Any assignment or continued access to controlled items is contingent upon the company’s determination that the individual is legally authorized to receive such access or that any required government authorization can be obtained. This review is conducted solely for export control compliance purposes and is separate from Form I‑9 employment eligibility verification.
Estimated Pay Range:
Exact compensation and offers of employment are dependent on circumstances of each case and will be determined based on job‑related knowledge, skills, experience, licenses or certifications, and location.
At Milestone we strive to create a workplace that reflects the communities we serve and work with, where we all feel empowered to bring our full, authentic selves to work. We know creating a diverse and inclusive culture that champions equity and belonging is not only the right thing to do for our employees but is also critical to our continued success.
Milestone Technologies provides equal employment opportunity for all applicants and employees. All qualified applicants will receive consideration for employment and will not be discriminated against on the basis of race, color, religion, gender, gender identity, marital status, age, disability, veteran status, sexual orientation, national origin, or any other category protected by applicable federal and state law, or local ordinance. Milestone also makes reasonable accommodations for disabled applicants and employees.
We welcome the unique background, culture, experiences, knowledge, innovation, self‑expression and perspectives you can bring to our global community. Our recruitment team is looking forward to meeting you.
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