CNC Mill Machinist - First Shift

The Johns Hopkins University Applied Physics Laboratory (JHU APL) is seeking a highly skilled and motivated CNC Machinist to join a creative, multi-disciplinary fabrication team. You will manufacture next-generation spacecraft, undersea hardware, shipboard test systems, and communication components, supporting programs from R&D prototype to flight hardware that meet AS9100 standards. This role offers opportunities to work on 3-axis and multi-axis CNC milling machines and routers, explore sophisticated programming, fabricate complex hardware, and work with a wide range of materials (composites, aluminum, stainless steel, titanium, refractory metals, experimental alloys, etc.).

About Us

The Johns Hopkins University Applied Physics Laboratory (APL) brings world-class expertise to critical defense, security, space, and science challenges. We foster a vibrant, welcoming atmosphere that encourages growth, collaboration, and creativity. Employees enjoy generous benefits, including robust education assistance, unparalleled retirement contributions, and a healthy work/life balance. APL’s campus is located in the Baltimore-Washington metro area.

Responsibilities

• Set up, program, maintain, and operate CNC and conventional milling machines for end-to-end manufacturing with minimal direction.
• Analyze and interpret solid models and blueprints to meet customer specifications, applying skills in Geometric Dimensioning and Tolerancing (GD&T).
• Perform in-process inspection using precision measuring instruments (e.g., I.D. and O.D. micrometers, calipers, height gauges) to verify hardware specifications and tolerances, coordinating with quality assurance.
• Communicate and collaborate with engineers and designers to provide fabrication insight on complex designs.
• Maintain proficiency with all applicable quality processes associated with assigned work.
• Monitor and record work duration in the ERP system in accordance with business and quality procedures.
• Perform other duties as assigned.

Requirements

• High School diploma or equivalent.
• 5+ years of experience with set-up, programming, and operation of CNC machining equipment.
• Experience with CAD/CAM programming software (Mastercam preferred).
• Proficiency in operating general computer functions (e.g., email, file directories, Microsoft Outlook, Word, Excel).
• Functional understanding of programming languages (G-Code/Heidenhain).
• Proven experience with set-up, programming, and operation of vertical or multi-axis CNC milling machines.
• Experience with conventional manual milling machines.
• Experience interpreting blueprints using Geometric Dimensioning and Tolerancing (GD&T).
• Ability to inspect hardware using common measuring tools (calipers, micrometers, gauge pins, thread gauges, indicators, height gauges).
• Ability to acquire an Interim Secret level security clearance by your start date and ultimately a Secret level clearance (U.S. citizenship required).

Qualifications (Preferred)

• Experience in multi-axis machining, including simultaneous toolpathing.
• Experience with MasterCam (2024+) programming software.
• Familiarity with Mazak, DMG-Mori (Siemens), Haas, or Heidenhain CNC controls.
• Leadership and/or operations management experience.
• Track record of quoting/estimating work.
• Degrees/certifications in relevant manufacturing subject areas.
• A current security clearance at the Secret or Top-Secret level.

Schedule

This position follows a work schedule of 7:00 AM to 3:30 PM, Monday through Friday. Opportunities for overtime will be available as needed.

Pay

Minimum Rate: $30.75 hourly
Maximum Rate: $51.25 hourly

Benefits

• Comprehensive benefits package, including retirement plans and paid time off.
• Medical, dental, vision, life insurance, short-term disability, and long-term disability coverage.
• Flexible spending accounts.
• Education assistance and training/development opportunities.
• Potential for bonuses, sign-on bonus, relocation benefits, locality allowance, or discretionary payments for exceptional performance.