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Maintenance Technician/Supervisor

Jacksonville, FL; Jacksonville; Florida; FL; Jacksonville, Florida; United States
Full Time On-site

Summary

Job Description

Essential Duties:

  • This position is responsible for performing the preventive and corrective maintenance on facility and operational equipment for the site and overseeing a department of mechanics.
  • Lead by example in modeling the safety behaviors and attitude expected by Amentum.
  • Ensure employees comply with EHS policies and requirements by frequently visually verifying compliance. Immediately engage employees not in compliance.
  • Participate in injury management, incident investigation, cause analysis, and corrective action implementation.
  • Recognize employees for their work contributions regularly through informal recognition.
  • Troubleshoot, install, repair and maintain mechanical, hydraulic, pneumatic, and electrical components of equipment adhering to lockout tagout procedures and other safety guidelines.
  • Perform general facility repairs, including but not limited to building, grounds, lighting and plumbing.
  • Dismantle machinery to perform repairs, detect wear, misalignment and other problems.
  • Reassemble machines, make all necessary adjustments and test operations.
  • Replace broken or defective parts on equipment or facility as required.
  • May prepare written specifications for major repairs or production of parts; make up bill of materials, select proper materials, tools and equipment and complete requisitions for same.
  • Prioritize equipment maintenance requests with Plant Manager.
  • Identify, recommend, and implement improvement to equipment.
  • Manage preventive maintenance program, including recordkeeping and recommended scheduled maintenance.
  • Establish and maintain relationships with outside maintenance and service vendors.
  • Ensure quality of repairs performed.
  • Ensure all employees can perform efficiently in all repair functions.
  • Ensure condemned containers are disposed of properly.
  • Assist with personnel issues.
  • Review department backlog and assign personnel accordingly.
  • Coordinate and expedite the flow of repair parts and materials from the parts cage to the mechanic workstations.

Minimum Qualifications:

  • Two (2) years Maintenance experience.
  • Must have excellent mechanical and electrical troubleshooting skills, knowledge for use of mechanical/pneumatic tools, measuring equipment, automated systems and forklifts.
  • Some computer experience required (MS Office preferred).
  • Ability to work extended and weekend shifts, when needed.

Desired Qualifications:

  • Two-year college or technical program or equivalent experience preferred.
  • Knowledge of machine theory, electronics, hydraulics, pneumatics, pipefitting and machine design.
  • Knowledge of both Gas and Diesel-powered engines and drive train.
  • Knowledge of machinery and support systems according to manufacturer’s guidelines/specifications/ manuals.
  • Ability to perform varied welding functions to include Stick, MIG, Plasma Cutter. Understand different types of Welding Rod/Wire/Shielding Gas.
  • Strong verbal and written communication skills.
  • Ability to understand equipment and tool drawings.
  • Forklift certified.

Physical Requirements:

  • This position utilizes industrial machinery that is frequently loud. The work environment is not climate controlled and subject to extreme heat and cold. Must be able to remain in a stationary position during shift with occasional walking. This role requires frequent twisting and bending, squatting, or stooping. This role moves equipment weighing up to 50 pounds regularly. Workplace conditions necessitate following strict safety guidelines and the use of Personal Protective Equipment.

Compensation Details:

$65,000-$79,000

The compensation range or hourly rate listed for this position is provided as a good-faith estimate of what the company intends to offer for this role at the time this posting was issued. Actual compensation may vary based on factors such as job responsibilities, education, experience, skills, internal equity, market data, applicable collective bargaining agreements, and relevant laws.

Benefits Overview:

Our health and welfare benefits are designed to support you and your priorities. Offerings include:

  • Health, dental, and vision insurance
  • Paid time off and holidays
  • Retirement benefits (including 401(k) matching)
  • Educational reimbursement
  • Parental leave
  • Employee stock purchase plan
  • Tax-saving options
  • Disability and life insurance
  • Pet insurance

_Note: Benefits may vary based on employment type, location, and applicable agreements. Positions governed by a Collective Bargaining Agreement (CBA), the McNamara-O'Hara Service Contract Act (SCA), or other employment contracts may include different provisions/benefits._

Original Posting:

06/15/2026 - 07/24/2026

Amentum anticipates this job requisition will remain open for at least three days, with a closing date no earlier than three days after the original posting. This timeline may change based on business needs.

Amentum is proud to be an Equal Opportunity Employer. Our hiring practices provide equal opportunity for employment without regard to race, sex, sexual orientation, pregnancy (including pregnancy, childbirth, breastfeeding, or medical conditions related to pregnancy, childbirth, or breastfeeding), age, ancestry, United States military or veteran status, color, religion, creed, marital or domestic partner status, medical condition, genetic information, national origin, citizenship status, low-income status, or mental or physical disability so long as the essential functions of the job can be performed with or without reasonable accommodation, or any other protected category under federal, state, or local law. Learn more about your rights under Federal laws and supplemental language at Labor Laws Posters (https://postings.govdocs.com/#/vxSkbztPuAwwxfs) .

About Amentum

Amentum

Amentum is one of the largest government services and engineering companies supporting the U.S. military, intelligence community, and federal agencies. Headquartered in Virginia with more than 50,000 employees worldwide, Amentum delivers mission-critical support across defense, cybersecurity, engineering, logistics, intelligence, aviation, nuclear, and space operations. The company plays a major role in helping government agencies solve complex national security and infrastructure challenges.

For job seekers, Amentum offers a wide variety of career opportunities across engineering, cybersecurity, intelligence, logistics, IT, aviation maintenance, program management, and cleared government support roles. The company is especially attractive to veterans, transitioning military personnel, and security-cleared professionals looking to continue supporting national security missions while building long-term career stability. Amentum also has a strong reputation for career mobility, education support, and mission-focused work across hundreds of federal programs.

Unlike many companies focused on a single niche, Amentum supports a broad range of high-impact missions—from military readiness and intelligence operations to NASA programs, cyber modernization, and critical infrastructure support. Employees often work on programs that directly support the Department of Defense, intelligence agencies, and federal civilian missions, creating opportunities to build diverse experience while contributing to meaningful national security outcomes.

As government investment continues to grow in cyber, space, engineering, and mission modernization, Amentum remains one of the strongest employers in the government contracting sector. For professionals seeking a stable, mission-driven career with opportunities for advancement, technical growth, and meaningful impact, Amentum continues to stand out as a top employer in defense and federal services.

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