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Johns Hopkins University

Jr. Machinist - KSAS (Physics & Astronomy)

Baltimore, MD, United States

Job at a glance

Pay
$27 – $47
Sector
Traditional Engineering
Posted
Oct 20, 2026
First found
Nov 6, 2026, 4:02 PM ET

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About the job

As part of the Krieger School of Arts & Sciences Physical Sciences Machine Shop, we are seeking a Jr. Machinist who will work under the supervision of PSMS Instrument Design team to provide machining services to the University research and instructional community and affiliates: Responsible for the fabrication of precision components using a variety of equipment, including manual and CNC (Computer Numerical Control) lathes and milling machines, wire EDM and a variety of fabrication and inspection equipment; various machining tasks to design, prototype, and fabricate specialized equipment/instruments.

Specific Duties & Responsibilities

Under the supervision and guidance of PSMS Instrument Designers Team

  • Fabricate precision components from a variety of materials.
  • Design jigs, fixtures, and instruments to satisfy fabrication or design requirements.
  • Operate manual lathes, milling machines, grinders, sanders, and utilize a variety of hand tools.
  • Program setup and operate CNC machines, including machining centers, lathes, and wire EDM.
  • Interface with faculty, staff and students to understand customer requirements.
  • Track time, order materials and tooling, and maintain a neat and orderly workspace.

Minimum Qualifications

  • High School diploma or graduate equivalent.

  • Three years of related experience.

  • Additional education may substitute for required experience and additional related experience may substitute for required education beyond HS Diploma/Graduation Equivalent, to the extent permitted by the JHU equivalency formula.

Preferred Qualifications

  • Machining course certificates.
  • Working experience with manual lathes and mills to fabricate precision hardware.
  • Some experience developing manufacturing processes for precision hardware fabrication.

Technical Qualifications & Specialized Certifications

  • Precision machining: - Basic experience with programming, setup, and operation of computer numerical control (CNC) machines.

  • Multi-Axis Machining - Some familiarity with 4 and 5 axis CNC programming, setup, and operation.

  • EDM - Familiarity with wire and/or sinker EDM (electrical discharge machining).

  • CAD/CAM expertise - General proficiency using Computer-Aided Design (CAD) software such as SolidWorks, Mastercam, Creo, or AutoCAD.

  • Complex fabrication - Familiarity with different techniques for fabricating tight-tolerance components from raw stock from a variety of materials including: aluminum, brass, stainless steel, titanium, invar and plastics.

  • Geometric dimensioning and tolerancing (GD&T) - A general understanding of Geometric Dimensioning and Tolerancing (GD&T).

  • Welding and other processes - Some experience with welding (TIG, MIG, arc), brazing, soldering, and the use of waterjet and laser cutters.

  • Measurement and inspection - General proficiency with precision measurement tools, including calipers and micrometers.

Classified Title: Instrument Designer Job Posting Title (Working Title): Jr. Machinist - KSAS (Physics & Astronomy) Role/Level/Range: ACRO37.5/03/CG Starting Salary Range: $26.65 - $46.65 HRLY (Commensurate w/exp.) Employee group: Full Time Schedule: Monday-Friday 8:30 am - 5:00 pm FLSA Status: Non-Exempt Location: Homewood Campus Department name: Physics and Astronomy Personnel area: School of Arts & Sciences