Maintenance Technician II- 2 Shift

Allied Mechanical
Ontario, CA
ABOUT ALLIED MECHANICAL

Since 1951, Allied Mechanical ( has been providing excellence in machining services to a broad range of business platforms including aerospace, space, energy, nuclear, military, oil refinery, turbine compressor, semiconductor and data storage. We specialize in machining large castings and other metal/alloy parts. Allied's greatest asset is its unique ability to offer customers turn-key, fully integrated machining, welding and assembly solutions through a world class team.

Allied Mechanical offers a competitive salary with a full range of benefits such as:
  • Medical, dental and vision insurance (as well as other auxiliary benefits i.e. life insurance, pet insurance, LTD)
  • 401(k) with profit sharing company contributions
  • 2 weeks paid time off in the first year, increasing to 3 weeks in the 2nd year and 4 weeks on the 4th year
  • 9 paid holidays
EXPECTED HIRING RANGE: $30 - $42 per hour

JOB SUMMARY
The Maintenance Technician Level II works to maintain, troubleshoot, repair and optimizing both production machinery (CNC mills/lathes, 3-5 axis machines) and facility support systems (electrical, HVAC, plumbing, cranes, pumps, etc.). They will assist in preventive maintenance, manage emergency response, and ensure compliance with safety and quality standards. This position is subject to ITAR requirements which require incumbents to be a U.S. Person (Citizen, lawful permanent resident, a protected individual per 8 U.S.C. 1324(a)(3))

RESPONSIBILTIES

Include the following but other duties may be assigned. *
  • Maintain, troubleshoot, inspect, repair and optimize CNC machinery (mills, lathes, 3- and 5-axis machines such as Mitsubishi, Mori-Seiki, Okuma, and other large mills/lathes) to ensure high-uptime, precision production.
  • Perform diagnostics and repair on CNC systems: mechanical, hydraulic, pneumatic, servo/drive, spindle, turret, tooling changeovers, alignment, calibration.
  • Conduct and oversee preventive maintenance programs for production equipment: lubrication, alignment verification, spindle run-out checks, linear guide inspections, coolant filtration & condition, machine leveling, vibration analysis.
  • Assist with machine installations, relocations, rebuilds and major upgrades (mechanical, electrical, controls) in coordination with production and engineering teams.
  • Maintain and repair facility-level systems: basic electrical wiring and controls, PLC inputs/outputs, motor starters, panel wiring; HVAC systems; plumbing; overhead cranes; pumps; compressed air systems; conveyors; material handling equipment.
  • Operate material handling equipment safely (forklifts, boom-lifts, scissor-lifts) and support equipment movements, rigging and machine set-ups. Obtain/maintain certification for forklifts and aerial lifts.
  • Respond to emergency calls outside of normal hours (including nights/weekends) to minimize downtime, coordinate with production and engineering to expedite repairs.
  • Lead root‐cause investigations for recurring equipment issues; implement corrective actions, document findings, update preventive maintenance plans.
  • Record maintenance work in CMMS (computerized maintenance management system), maintain accurate service logs, parts usage, machine history and downtime tracking.
  • Interface with production, quality and engineering teams to support process improvements, equipment capability studies, machine health monitoring and cost reduction initiatives.
  • Work continuously with safety as the top priority: enforce lockout-tagout procedures, machine guarding, fall protection, aerial lift protocols, daily job safety analyses and toolbox talks.
SECONDARY DUTIES AND RESPONSIBILITIES
  • Reports unsafe conditions to manager. Report to management all accidents and injuries immediately.
  • Maintain a clean, organized work area and ensure spare parts, tools and materials are readily available and inventoried.
  • Assist other department and/or areas as requested by management or supervisor.
  • Follows all company policies and safety guidelines. Attend all safety training as scheduled.
  • Mentor and support less‐experienced maintenance technicians or apprentices; provide direction, training and oversight as needed.
  • Self-motivated, able to work independently under minimal supervision, manage deadlines and adapt quickly to changing priorities.
  • Must be able to work overtime and weekends on a regular basis, and respond to emergency calls.
SUPERVISORY RESPONSIBILITIES
This position does not oversee any personnel.

SKILLS/ EXPERIENCE
  • 5 – 7 years of hands-on maintenance experience in aerospace, defense, or machine-shop environments, supporting CNC mills/lathes, automation, facility systems
  • Strong knowledge of mechanics of 3- to 5-axis machines (e.g., Mitsubishi, Mori-Seiki, Okuma) and other large mills and lathes.
  • Proven experience with CNC mill/lathe diagnostics and repair: mechanical, electrical, servo/drive systems, spindles, axes, tooling systems.
  • Working knowledge of facility systems including electrical, plumbing, HVAC, cranes, pumps, compressed air and material handling.
  • Forklift, boom-lift and scissor-lift operator experience, or ability and willingness to become certified.
  • Excellent troubleshooting skills, able to independently diagnose and repair complex mechanical and electrical issues.
  • Documentation skills: ability to record maintenance activities, downtime, parts usage, machine history, and update CMMS.
  • 5+ years of hands-on experience in electrical and mechanical work. Ability to satisfactorily perform electrical jobs and intermediate knowledge of the electrical code and best practices.
EDUCATION
High School or G.E.D. Technical Certificates/AA degree in electronics, CNC repair preferred

PHYSICAL DEMANDS
Note: The physical demands described here are representative of those that must be met by an employee to perform the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.

While performing the duties of this job, the employee should have the:
  • Ability to walk or move to regularly move about inside the office or onto the facility.
  • Ability to see or detect, identify, recognize or Assess surroundings while in the office or facility areas
  • Ability to bend, turn and stoop continuously
  • Ability to stand for prolonged periods of time up to the bulk of the shift
  • Ability to occasionally lift and/or move up to 50 pounds
  • Ability to work at heights (usage of booms, scissor-lifts etc)
  • Strong manual dexterity to use tools, reach into equipment and perform mechanical task.

WORK ENVIRONMENT
The work environment characteristics described here are representative of those an employee encounters while performing their job. While performing the duties of this job, the employee will spend approximately 10% (excluding breaks and meal periods) of time in an office environment and 90% of the time in the facility. When working in the facility it requires the use of personal protective equipment including (but not limited to) safety slip/ oil resistant shoes, safety glasses, safety gloves as well as other PPE dependent on the work being performed.

Allied Mechanical is an equal opportunity employer. We do not discriminate on the basis of race, color, religion, marital status, age, national origin, ancestry, physical or mental disability, medical condition, pregnancy, genetic information, gender, sexual orientation, gender identity or expression, veteran status, or any other status protected under federal, state, or local law.

We encourage women, vets and those with disabilities to apply.

If you need reasonable accommodations in order to apply or need to discuss the physical/mental requirements of this job, contact us at 909-947-2723.

PLEASE DO NOT SUBMIT RESUMES IN IMAGE FORMATS (JPEG, PNG, Screenshots)!

Posted 2026-02-22

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