Jr. Machinist - KSAS (Physics & Astronomy)

Johns Hopkins University•Baltimore, MD
•$27 - $47•Onsite

About The Position

The Jr. Machinist works as part of the Krieger School of Arts & Sciences Physical Sciences Machine Shop under the supervision of the PSMS Instrument Design team. The position provides machining services to the University research and instructional community and affiliates, fabricating precision components and specialized equipment or instruments using manual and CNC machinery and other fabrication and inspection equipment. The role is based at the Homewood Campus and is scheduled Monday through Friday, 8:30 a.m. to 5:00 p.m.

Requirements

  • 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 education beyond a high school diploma or graduation equivalent, subject to the JHU equivalency formula.
  • Basic experience programming, setting up, and operating CNC machines.
  • General understanding of geometric dimensioning and tolerancing (GD&T).
  • General proficiency with precision measurement tools, including calipers and micrometers.

Nice To Haves

  • Machining course certificates.
  • Working experience with manual lathes and mills to fabricate precision hardware.
  • Some experience developing manufacturing processes for precision hardware fabrication.
  • Some familiarity with 4- and 5-axis CNC programming, setup, and operation.
  • Familiarity with wire and/or sinker EDM.
  • General proficiency with CAD software such as SolidWorks, Mastercam, Creo, or AutoCAD.
  • Familiarity with techniques for fabricating tight-tolerance components from raw stock, including aluminum, brass, stainless steel, titanium, invar, and plastics.
  • Some experience with TIG, MIG, or arc welding; brazing; soldering; and using waterjet and laser cutters.

Responsibilities

  • Fabricate precision components from a variety of materials.
  • Design jigs, fixtures, and instruments to meet fabrication or design requirements.
  • Operate manual lathes, milling machines, grinders, sanders, and a variety of hand tools.
  • Program, set up, and operate CNC machines, including machining centers, lathes, and wire EDM.
  • Work with faculty, staff, and students to understand customer requirements.
  • Track time, order materials and tooling, and maintain a neat and orderly workspace.
© 2026 Teal Labs, Inc
Privacy PolicyTerms of Service