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Facility Maintenance Specialist

MARA Holdings, Inc. logo
MARA Holdings, Inc.

MARA Holdings operates at the intersection of energy, compute, and digital capital. It owns and operates data-center infrastructure, balances energy demand, develops AI and high-performance computing capabilities, and participates in Bitcoin-related digital infrastructure.

Hallandale Beach, USA

Investors

About MARA Holdings, Inc.

MARA Holdings develops and operates energy and data-center infrastructure designed to stabilize grids, monetize excess energy, and support Bitcoin mining, artificial intelligence, and high-performance computing. Its activities include targeted acquisitions, joint ventures, strategic partnerships, and technology development for energy and compute efficiency. The company serves hyperscale and high-performance computing customers, enterprise AI infrastructure users, and investors.

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Skills

Candidate Availability

Required and preferred rules are kept separate and reflect the wording in the original posting.

About the Role

In this hands-on role, you will be responsible for the upkeep of buildings, grounds, equipment, and infrastructure. You will perform general maintenance, minor repairs, inspections, and control inventory. A key part of your job will be supporting ASIC mining operations, which includes maintaining both immersion and air-cooled setups by replacing filters, checking pumps, and assisting with component replacements. You will also conduct preventative maintenance, log your daily activities, and ensure a safe work environment by following all safety protocols and communicating clearly with site leads.

Requirements

  • Prior experience in facility maintenance, general labor, or mechanical systems strongly preferred.
  • Familiarity with basic building maintenance tasks and facility upkeep.
  • Mechanical aptitude with willingness to learn immersion cooling and air-handling system basics.
  • Ability to assist with replacing pumps, filters, and electronic components (e.g., contactors, I/O boards) in a non-licensed capacity.
  • Experience with hand and power tools, ladders, lifts, and safety gear.
  • Basic computer skills (Excel required; SharePoint a plus).
  • Ability to work independently and as part of a team, with strong communication and documentation skills.
  • Must be able to lift and carry equipment or materials up to 50 lbs.
  • Comfortable working on ladders, lifts, and in various indoor/outdoor conditions.
  • Requires manual dexterity and the ability to kneel, bend, climb, or reach for extended periods.

Responsibilities

  • Perform upkeep and minor repairs on building structures and facility systems, including doors, hardware, siding, lighting, fencing, and basic utilities.
  • Maintain cleanliness and organization of shared workspaces, supply areas, and common-use tools.
  • Identify maintenance needs across the facility and ensure timely response or escalation.
  • Replace air filters and monitor airflow systems for efficiency and cleanliness.
  • Perform basic maintenance on immersion cooling infrastructure, including checking/replacing pumps, fittings, and coolant levels.
  • Replace or assist with the replacement of contactors, relays, and I/O boards as part of mining hardware support.
  • Monitor and report warning indicators or error codes on ASIC-related systems; escalate complex issues to leads or specialized staff.
  • Conduct scheduled walkthroughs and inspections of facility equipment, infrastructure, and mining systems.
  • Perform preventative tasks such as lubricating parts, tightening fasteners, and cleaning filters, vents, or enclosures.
  • Track and prioritize maintenance tasks to prevent downtime and ensure a safe, operational environment.
  • Maintain a clean, well-stocked inventory of tools, PPE, and consumables such as gloves, bits, harnesses, and repair hardware.
  • Inspect tools and gear for wear or damage and remove defective items from use.
  • Ensure all equipment is properly stored after use and work areas remain free from clutter or hazards.
  • Log daily activities, maintenance tasks, and facility observations in shared tracking tools.
  • Communicate work plans and progress clearly with Facility Leads and Managers.
  • Report all safety or operational concerns with sufficient detail for follow-up.
  • Follow all site safety protocols and OSHA regulations.
  • Use required PPE at all times and maintain high awareness of potential hazards.
  • Participate in safety briefings and contribute to a proactive safety culture by identifying and reporting risks.