CNC Maintenance Technician

Senior Aerospace Spencer - 28510 Industry Dr, Valencia, CA 91355, USA
Spencer Aerospace
Vacancy title
CNC Maintenance Technician
Senior Aerospace Spencer - 28510 Industry Dr, Valencia, CA 91355, USA
Advertised salary
Starting at $23.00 / hr, actual pay depends on experience
Employment type
Working pattern
8am - 5pm
Closing date
31 July 2024

Who is Senior plc?

Senior is a FTSE listed (symbol SNR) international manufacturing Group with 26 operations in 12 countries. Senior designs, manufactures and markets high-technology components and systems for the principal original equipment producers in the worldwide aerospace, defense, and land vehicle and power & energy markets. We have a long history of well-respected brands and an excellent reputation in our key market sectors. Senior delivers value to its customers and shareholders via operational excellence that is underpinned by its people and processes.

Our global values underpin what we do, and how we do it …

Safety – Integrity – Customer Focus – Respect & Trust – Accountability – Excellence

Who is Senior Aerospace Spencer?

Senior Aerospace Spencer is an engineer-driven organization focused on high-pressure hydraulic fluid fittings for use in commercial and military aerospace applications. We specialize in source-controlled, standard, and proprietary fittings. Senior Aerospace Spencer also identifies solutions for fluid conveyance challenges related to fitting applications. Our engineering capabilities include conceptual design assistance, modeling, testing and qualification. Our senior engineering professionals are active members of the SAE G3 Fluid Fitting committee and are recognized industry-wide for their expertise.

We are a domestic, in-house, on-site manufacturing company with over 300+ aggregate years of manufacturing, engineering and quality experience.

What does the job involve?

The CNC Maintenance Technician will determine methods and sequences of operations in order to maintain, repair, service and modify all types of Production machine tools and fabrication machines, such as PLC (Programable Logic Controller), NC (Numerical Control), CNC (Computer Numerical Control), DNC (Direct/Digital Numerical Control) machines, robots or other equipment, employing multiple types of advanced and/or conventional control systems exercising a working knowledge of mechanical, hydraulic and component functions.

What will my responsibilities include?

  • Support the ongoing improvement and development of PM instructions and schedules to prevent failures.
  • Coordinate the repair of production precision mills and lathe machines. This includes electrical, hydraulic, and pneumatic systems.
  • Perform machine qualifications as required for installations and repairs.
  • Assemble and install mechanical equipment and systems such as production machinery/tools.
  • Knowledge of OEM machine controllers (FANUS, Siemens and NIT)
  • Perform mechanical repairs (and rebuild) on all machines.
  • Working knowledge of tool Probing function for CNC Lathe Machines.
  • Able to work with complex NC machines up to & including 5 axis.
  • Perform machine leveling and alignment on all machines.
  • Identify and replace parts as necessary.
  • Install, troubleshoot, repair and maintain machine tool equipment and controls.
  • Use machine tool manuals, technical documents and internal and vendor resources to research machine issues.
  • Coordinate with external suppliers and maintenance companies to ensure timely and accurate completion of work.
  • Work with a sense of urgency to minimize machine downtime.
  • Install and repair electrical apparatus, such as transformers and wiring, and electrical and electronic components of machinery and equipment.
  • Visually inspects and tests machinery and equipment.
  • Maintain an adequate supply of backup tooling, fixtures, components, etc. to keep the production equipment operating.
  • Ensure company safety policies and procedures are understood by employees and implemented consistently company wide.
  • Strong industrial electronic background required, as well as CNC control aptitude.
  • Available for “On Call” responsibilities; weekends and after hours.
  • Properly document request for services to allow efficient ongoing response to customer needs. This includes what the machine was doing, adjustments made, parts replaced, etc.
  • Other duties as assigned.



  • Minimum of three years’ experience in performing maintenance of CNC machines.
  • Professional work experience performing machine repairs, troubleshooting, and PM, with a knowledge of standard measuring equipment of an advanced nature.
  • Ability to read and interpret documents such as safety rules, operating and maintenance instructions and procedure manuals.
  • Interpret and follow blueprints, drawings, ladder and schematic diagrams and general instructions to plan and layout test and repair procedures.
  • Understand mechanical, pneumatic and hydraulic systems.
  • Knowledge of standard safety regulations.
  • Medical device, aerospace or electronics manufacturing background desirable.
  • Communicate to supervisor and/or other shifts to assure continuity of ongoing projects and repairs.
  • Working knowledge of CMMS software for the machines.
  • Able to lift, stand, climb, bend, grasp, sit, pull, push, stoop, stretch and carry.
  • Able to work while standing on lifts and ladders.
  • Ability to lift 50 pounds.


  • High school diploma or equivalent
  • Technical certificates or equivalent combination of education/experience


If an offer of employment is made it will be contingent upon passing all of the following: Drug Test, Background Check, ITAR, and U.S. Export Compliance Screening.

Equal Opportunity Employer: minority/female/disability/veteran

Access to our facility (and, therefore, employment) is restricted under the International Traffic in Arms Regulations (ITAR) and/or Export Administration Regulations (EAR) to U.S. Citizens, lawful permanent residents, U.S. refugees, asylees, or temporary residents under amnesty provisions [as defined in 8 USC 1324b(a)(3)] and properly licensed foreign persons. Applicants receiving a conditional offer of employment will be required to provide information to determine whether they are subject to these regulations and if so, to assess their country of chargeability for trade compliance control purposes. Additionally, potential employee’s names will be screened against the Consolidated Screening List (maintained by the United States government) to determine eligibility to receive technical data.