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Long Wall

Produces hypersonic testbeds and defense interceptors

Senior CNC Programmer and Machinist

Precision Machining & ToolmakingConfirmed live in the last 24 hours
Full-timeEl Segundo, CA, USA$44 - $57 /hr

About the Job

Requirements

  • High school diploma, GED, or equivalent.
  • At least 10 years of CNC mill programming and machining experience, including demonstrable expert working knowledge of Mastercam, superalloy machining, Haas CNC machines, and controls; or at least 6 years of CNC mill programming and machining experience plus certification or demonstrable expert working knowledge of Mastercam and Haas CNC machines and controls, and expertise in superalloy machining.
  • Availability to work a standard 10-hour shift schedule totaling 50 hours per week, including overtime, with occasional weekends to support critical deadlines.
  • Expert proficiency programming multi-axis CNC mills using Mastercam.
  • Hands-on experience setting up, proving out, and operating 3- and 5-axis Haas machining centers.
  • Ability to read and interpret engineering drawings, geometric dimensioning and tolerancing (GD&T), and controlled technical documentation.
  • Experience machining superalloys and aerospace-grade materials to tight tolerances.
  • Working knowledge of in-process and first-article inspection methods and tools.
  • Ability to sit, stand, squat, and walk for extended periods; occasionally ascend and descend ladders and/or work on rooftops; and repeatedly lift 25 pounds throughout the day.
  • Ability to communicate with individuals and groups in person, by phone, and through telepresence.
  • Ability to work in an indoor manufacturing environment 70% of the time and outdoors 30% of the time.
  • U.S. person status is required to access information protected under U.S. export control laws. Qualifying statuses include U.S. citizenship, U.S. permanent residency, U.S. asylum status, or U.S. refugee status.

Responsibilities

  • Use Mastercam to create new programs and review or edit existing CNC programs for production and development hardware.
  • Use Vericut as required to validate programs and maintain revision control on CNC programs.
  • Analyze piece parts for design for manufacturability (DFM), optimize them for manufacturing, and collaborate with engineering to recommend drawing changes.
  • Use feedback from engineering and manufacturing teams to rapidly iterate on part processes and designs.
  • Set up, prove out, and operate programs on 3- and 5-axis mills, and perform in-process and first-article inspections.
  • Support and mentor junior programmers and machinists.
  • Work with support teams to ensure machine care and preventive maintenance activities are completed.
  • Design and machine custom tooling and fixturing.
  • Drive machine shop process improvements and maintain shop cleanliness and organization to a high standard.
  • Submit purchase orders for tooling according to job requirements and add tools for standard components to the vendor-managed inventory list.
  • Support material loading and handling.
  • Travel between the El Segundo facility (90%) and Port of Long Beach facility (10%) as required, with occasional travel to other in-state and out-of-state sites.

Desired Qualifications

  • Experience interpreting GD&T and providing engineers with feedback on best practices for ease of machining and inspection.
  • Ability to read, interpret, and work from controlled technical documentation and processes, including engineering, layout, and mechanical drawings; assembly procedures; manufacturing instructions; schematics; and parts lists.
  • Proficiency using a PC, Microsoft Windows, Microsoft Office Suite (Excel, Outlook, PowerPoint, and Word), shop-floor management software (ERP), and related programs.
  • Experience in aerospace, medical, or automotive manufacturing.
  • Strong knowledge of inspection tools and inspection processes.
  • Experience with Mastercam Blade Expert and impeller machining.
  • Hands-on experience with metal 3D-printed components.
  • Experience with Vericut verification software.
  • Experience with Microsoft Office products.
  • Familiarity with ISO 9001 and AS9100D.

About the Company

Long Wall

Produces hypersonic testbeds and defense interceptors

Long Wall repurposes its launch heritage to serve U.S. defense needs, building deployable space and missile-defense testing tools for the government. Its RSX is a hypersonic flight-test vehicle used as a test bed and threat-replication target, Ironwood is a containerized ground system for responsive launch, and Cyclops is a surface-launched interceptor designed to engage missiles in midflight. Unlike rivals pursuing commercial satellite launches, Long Wall focuses on U.S.-made defense hardware and offers an integrated set of launch/test and interception capabilities to shorten timelines and reduce costs. Its goal is to strengthen national security by providing ready-to-use, deployable defense testing and interception solutions for government customers.

Company size
51-200
Company stage
Grant
Total funding
$659.9M
Headquarters
Long Beach, CA
Founded
2025

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