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Updated 2026-06-15 20:00 UTC·© 2025–2026 RoleSuite
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APS-4: Machinist

KBR · Seoul, South Korea

Title:

APS-4: Machinist

Belong, Connect, Grow, with KBR!

Program Summary

KBR Government Solutions delivers full life cycle professional and technical solutions that improve operational readiness and drive innovation. Our solutions help ensure mission success on land, air, sea, space, and cyberspace for the Department of Defense, the intelligence community, NASA, and other federal agencies. KBR’s areas of expertise include engineering, logistics, operations, science, program management, mission IT, and cybersecurity.

This position supports the Army Prepositioned Stocks – 4 (APS-4) Program, Multi-Role Bridge Company (MRBC) section, located at Camp Humphreys, Korea. The Machinist will comply with all applicable safety and environmental regulations, local safety policies, and KBR’s Zero Harm program.

Job Summary

The Machinist provides precision fabrication, machining, and welding services in direct support of COSIS-based maintenance and repair operations for the APS-4 MRBC equipment set at Camp Humphreys, Korea. The Machinist works across a range of metalworking disciplines to fabricate, repair, and modify components and assemblies for float bridge systems, heavy wheeled tactical vehicles, and associated equipment maintained on the APS-4 program.

In addition to dedicated machining and fabrication duties, the Machinist assists maintenance mechanics on production tasks when workload and availability allow, supporting the overall maintenance mission of the MRBC section. The Machinist is proficient in multiple welding processes including TIG (GTAW), MIG (GMAW), and Stick (SMAW) welding, and is experienced working with both steel and aluminum materials. The Machinist complies with all applicable safety and environmental regulations, local safety policies, and KBR’s Zero Harm program.

Roles and Responsibilities

  • Perform precision machining operations using lathes, mills, grinders, drill presses, and related machine tools to fabricate, repair, and modify components in support of MRBC equipment maintenance.

  • Perform structural and precision welding using TIG (GTAW), MIG (GMAW), Stick (SMAW), and other applicable welding processes on steel, aluminum, and other metals to support equipment repair and fabrication requirements.

  • Fabricate replacement parts and custom components from raw stock to blueprint specifications, technical drawings, and work orders when OEM parts are unavailable or require field modification.

  • Perform inspections on completed machining and welding work to verify dimensional accuracy, weld integrity, and conformance to technical standards.

  • Support COSIS-based preventive maintenance and repair of MRBC float bridge systems, bridging assemblies, and heavy wheeled vehicle platforms including the M30 Bridge Erection Boat, M16 Improved Ribbon Bridge, M17 Interior Bay, and M1977A4 Common Bridge Transporter.

  • Assist maintenance mechanics on production tasks when available, including PMCS support, component repairs, and unscheduled maintenance actions.

  • Diagnose or troubleshoot source of component and system malfunctions; determine required repairs and fabrication actions.

  • Maintain and account for provided and personal tools, equipment, and assigned work areas.

  • Read and interpret technical manuals, blueprints, engineering drawings, schematics, and work orders.

  • Ensure proper handling, storage, and disposal of hazardous materials including welding gases, solvents, and metalworking fluids in compliance with environmental regulations.

  • Comply with all applicable safety and environmental regulations, local safety policies, and KBR’s Zero Harm program.

  • Perform other duties as assigned.

Basic Qualifications (Required Education, Experience, Skills, and Certifications)

  • Must be a U.S. Citizen with a valid U.S. Passport.

  • Possess a valid State Motor Vehicle Operator License.

  • Ability to provide documentation to qualify as US EXPAT Invited Contractor Status and SOFA Visa IAW USFK 700-19 Regulation.

  • Favorable adjudication of an NACI background check.

  • High School diploma or GED plus five years of directly related work experience in machining, fabrication, and welding.

  • In lieu of formal coursework, a combination of college credits, on-the-job training, other formalized training, or experience may be considered.

  • Proficiency in machining operations using lathes, mills, grinders, drill presses, and related equipment.

  • Demonstrated proficiency in multiple welding processes to include TIG (GTAW), MIG (GMAW), and Stick (SMAW) welding.

  • Experience welding steel and aluminum materials; ability to select appropriate process, filler material, and technique based on base metal and application.

  • Welding Certification is required (AWS D1.1 Structural Steel and/or AWS D1.2 Structural Aluminum, or equivalent DoD-recognized certification).

  • Ability to read and interpret blueprints, technical drawings, engineering specifications, and work orders.

  • Ability to work from technical manuals, work instructions, and work orders.

  • Ability to comply with all established methods, quality standards, and time schedules applicable to this position.

  • Be able to provide a basic tool set equal to a General Mechanics Tool Set.

  • Must be able to work in a non-temperature-controlled environment, including heat and humidity.

  • Ability to lift 50 pounds to waist level and 35 pounds to shoulder height.

  • Must be able to work in confined spaces.

  • Required to pass initial and periodic medical screening.

Preferred Qualifications (Preferred Education, Experience, Skills, and Certifications)

  • Certification from a vocational school or other recognized source such as a military service-related Advanced Individual Training with a focus in machining, welding, or metal fabrication is preferred.

  • Experience with CNC machining operations is preferred.

  • EPA MVAC Technician Certification is preferred.

  • Prior experience supporting APS, PREPO, or other War Reserve materiel maintenance programs is preferred.

Belong, Connect and Grow at KBR

At KBR, we are passionate about our people and our Zero Harm culture.  These inform all that we do and are at the heart of our commitment to, and ongoing journey toward being a People First company.  That commitment is central to our team of team’s philosophy and fosters an environment where everyone can Belong, Connect and Grow. We Deliver – Together. 

KBR is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, disability, sex, sexual orientation, gender identity or expression, age, national origin, veteran status, genetic information, union status and/or beliefs, or any other characteristic protected by federal, state, or local law.

Trades pay context

Based on 1,103 disclosed Trades salaries on RoleSuite, the role pays a median of $72K/year, with most offers between $59K and $88K (10th–90th percentile: $52K–$115K).

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