Weld Engineer

Senior Weld Engineer

Leidos is seeking a Senior Weld Engineer to serve as the primary welding engineering authority supporting Electron Beam Welding (EBW) operations within the Mechanical Manufacturing Facility (MMF). This role provides advanced technical leadership across complex defense programs through weld process development, qualification, production support, and proposal contribution. The position requires strong expertise in high‑energy density welding (EBW) as well as manual GTAW and GMAW processes used in support of defense hardware manufacturing.

Leidos Defense Systems Sector / Manufacturing provides a diverse portfolio of systems, solutions, and services covering land, sea, air, space, and cyberspace for customers worldwide. Solutions for Defense include enterprise and mission IT, large‑scale intelligence systems, command and control, geospatial and data analytics, cybersecurity, logistics, training, and intelligence analysis and operations support.

• Serve as the primary weld engineering authority for MMF EBW operations.
• Develop, qualify, and optimize welding procedures for EBW and manual GTAW/GMAW processes.
• Author and maintain Welding Procedure Specifications (WPS), Procedure Qualification Records (PQR), and associated documentation.
• Lead EBW parameter development, validation, and troubleshooting including beam tuning and penetration profile control.
• Provide technical oversight and support for manual TIG and MIG welding operations supporting production hardware.
• Evaluate metallurgical response including HAZ behavior, defect mechanisms, distortion, and structural integrity.
• Lead weld‑related root cause investigations and corrective actions.
• Coordinate external testing laboratories, metallurgical evaluations, and specialty process vendors.
• Partner with Quality and NDT Departments to ensure weld compliance with applicable codes, contractual requirements, and inspection standards.
• Support EBW equipment through light troubleshooting, operations, fixturing/tooling concepts, and programming.
• Support proposal development through weld scope definition, risk identification, and labor estimation.
• Maintain configuration control and technical integrity of weld documentation within MES and engineering systems.

• Bachelor's degree or higher in Welding Engineering, Materials Engineering, Mechanical Engineering, or related discipline.
• 8–12 years of relevant welding engineering experience.
• Demonstrated experience developing and qualifying welding procedures.
• Strong working knowledge of:
  • Electron Beam Welding (EBW)
  • GTAW and GMAW
  • Metallurgical behavior in welded structures
  • Weld defect mechanisms and mitigation
  • NDT methods and weld inspection standards
  • AWS, ASME, or other applicable welding codes
  • Experience in structural and aerospace alloys.
  • Ability to independently resolve complex technical problems.
  • Candidate must be a US Citizen and possess or meet the eligibility to obtain (and be able to maintain) a Secret Clearance.

• Aerospace or defense manufacturing experience.
• Certified Welding Engineer (CWE).
• Experience contributing to technical proposals.
• Experience with Solumina MES and Solidworks CAD systems.

Huntsville Manufacturing

Pay Range: $ – $

Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at

Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit

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