CNC Maintenance Engineer

Primus Aerospace•Lakewood, CO

6d•$80,000 - $108,000

About The Position

Primus Aerospace is a manufacturing partner to aerospace, defense, and space OEMs, Primes, and Tier I suppliers, producing high-tolerance, complex-geometry components from standard and exotic metals. The CNC Maintenance Engineer ensures the reliability, performance, and operational efficiency of advanced CNC manufacturing equipment and supporting facility systems. The role serves as a senior technical resource for complex equipment diagnostics, preventative and corrective maintenance, machine installations, and continuous improvement initiatives. The position requires extensive hands-on experience with CNC machinery, industrial electrical and mechanical systems, hydraulics, pneumatics, and automation controls. The engineer independently diagnoses and resolves complex equipment failures and implements longer-term solutions to maximize machine uptime. The role also supports facility maintenance, safety and compliance, equipment documentation, and technical guidance for maintenance technicians and machine operators. Applicants must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain required authorizations from the U.S. Department of State or U.S. Department of Commerce. Primus Aerospace is an Equal Opportunity Employer.

Requirements

At least 5 years of experience maintaining, troubleshooting, and repairing CNC machinery in a precision manufacturing or machine shop environment.
Demonstrated ability to independently diagnose and resolve complex mechanical, electrical, and CNC control system issues.
Advanced knowledge of CNC machine tools, mechanical systems, industrial electrical systems, hydraulics, and pneumatics.
Strong experience troubleshooting CNC controls such as Fanuc, Haas, Okuma, Siemens, or similar systems.
Proficiency diagnosing PLC-controlled equipment, ladder logic, servo drives, spindle motors, VFDs, and industrial automation systems.
Experience troubleshooting industrial electrical systems, including 480V three-phase power and associated control circuits.
Proficiency using multimeters, electrical diagnostic equipment, precision measuring instruments, and machine diagnostic software.
Ability to interpret complex electrical schematics, wiring diagrams, mechanical drawings, and technical service manuals.
Experience with machine alignment, calibration, precision leveling, and mechanical adjustments.
Knowledge of preventative and predictive maintenance methodologies, root cause analysis, and equipment reliability practices.
Exceptional analytical, diagnostic, and problem-solving capabilities.
Ability to independently prioritize and resolve critical equipment failures in a fast-paced manufacturing environment.
Strong organizational skills and ability to manage multiple maintenance priorities.
Excellent communication skills and ability to collaborate with production, engineering, quality, and leadership teams.
Initiative, technical ownership, and commitment to continuous improvement.
Ability to mentor junior maintenance personnel and share technical knowledge across teams.
Ability to stand, walk, bend, kneel, crouch, and climb throughout the workday.
Ability to lift and carry up to 50 pounds, with assistance or mechanical lifting equipment when appropriate.
Ability to work around industrial machinery, electrical equipment, lubricants, coolants, and manufacturing operations, including in confined or physically demanding equipment areas.
Ability to follow required safety procedures and use appropriate personal protective equipment.
Must meet the stated U.S. citizenship, protected-person, permanent-resident, or export authorization eligibility requirement.

Nice To Haves

Bachelor's degree in Mechanical Engineering, Electrical Engineering, Manufacturing Engineering, Mechatronics, or a related technical discipline; equivalent combinations of technical education, specialized training, and extensive hands-on CNC maintenance experience will be considered.
Experience supporting high-precision, multi-axis CNC machining equipment.
Familiarity with computerized maintenance management systems (CMMS) and maintenance performance reporting.
Experience with CNC machinery manufacturers such as DMG Mori, Mazak, Haas, Nakamura, Doosan, or similar equipment.
7 or more years of progressive CNC maintenance or industrial equipment reliability experience.
Experience supporting aerospace, defense, or other high-precision manufacturing operations.
Advanced troubleshooting experience with multi-axis CNC machining centers, mill-turn equipment, and automated manufacturing systems.
Experience with PLC diagnostics, industrial automation, and CNC control system troubleshooting.
Familiarity with predictive maintenance technologies, vibration analysis, thermal imaging, or condition monitoring.
Experience leading equipment reliability improvements, major machine repairs, and maintenance optimization projects.
Experience working directly with CNC equipment OEMs and third-party service providers.

Responsibilities

Lead preventative, predictive, and corrective maintenance for CNC lathes, mills, grinders, multi-axis machining centers, and other precision manufacturing equipment.
Develop, implement, and optimize preventative maintenance programs to improve reliability, extend machinery life, and minimize unplanned downtime.
Evaluate equipment performance, identify recurring maintenance issues, and implement proactive solutions and maintenance standards.
Independently diagnose and resolve complex mechanical, electrical, hydraulic, pneumatic, and CNC control system failures.
Troubleshoot CNC controls, PLCs, variable frequency drives, servo motors, spindle drives, sensors, relays, and industrial control circuits using schematics, ladder logic, diagnostic software, and testing equipment.
Perform root cause analysis on recurring equipment failures and implement sustainable corrective actions.
Provide advanced equipment-related technical support to production and engineering teams.
Lead or support CNC machinery installation, commissioning, relocation, leveling, alignment, and qualification.
Perform precision mechanical adjustments and calibration to maintain equipment accuracy and manufacturing tolerances.
Collaborate with equipment manufacturers, OEM service technicians, and external vendors on repairs, upgrades, and technical support.
Evaluate equipment modifications, automation improvements, and machine performance enhancements; support new equipment integration and operational, safety, and performance requirements.
Analyze downtime, maintenance trends, and recurring failures; support monitoring of uptime, MTBF, and MTTR.
Recommend equipment upgrades, replacement parts, and maintenance investments based on operational needs and cost effectiveness.
Partner with production, quality, and engineering teams on lean manufacturing and continuous improvement initiatives; identify opportunities to reduce maintenance costs and improve utilization and OEE.
Maintain maintenance records, equipment service histories, technical documentation, and preventative maintenance schedules.
Read and interpret electrical schematics, mechanical drawings, hydraulic diagrams, pneumatic schematics, and equipment manuals.
Manage critical spare parts and coordinate with suppliers to ensure availability of essential maintenance components.
Ensure compliance with OSHA regulations, Lockout/Tagout, electrical safety requirements, and company safety policies.
Support general facility maintenance and infrastructure improvements as needed.
Provide technical guidance and mentorship to maintenance technicians and machine operators on equipment care, troubleshooting, and preventative maintenance practices.