L
Longwall7mo ago
USD 44–57/yr

Sr. CNC Programmer and Machinist

United StatesEl SegundoFull-timesenior
OtherCnc ProgrammerTrades & Skilled LaborManufacturing & Production
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Quick Summary

Overview

Long Wall Company was created in 2024 to accelerate missile defense technology for the U.S. and our allies. Building on the RS1 and GS0 launch systems, Long Wall develops containerized,

Technical Tools
OtherCnc ProgrammerTrades & Skilled LaborManufacturing & Production
Long Wall Company was created in 2024 to accelerate missile defense technology for the U.S. and our allies. Building on the RS1 and GS0 launch systems, Long Wall develops containerized, mass-producible missile defense systems and offers rapid, low-cost flight testing. We believe that the future of global security and stability require defensive technology that is lower cost, higher performing, better tested, and more broadly distributed than is possible today. Join us.
 
What we look for
Mission-Driven Problem Solvers. The aerospace frontier demands ingenuity. We want Team members who approach challenges with curiosity, embrace failure as a learning opportunity, and stay focused on delivering the best solution for the mission.
 
Total Ownership. We seek staff and engineers who take full responsibility for contributing to and delivering flight-ready work while recognizing that no one succeeds alone. The best engineers, corporate professionals, and technicians make their teammates better. Knowing that complementary skills create force multiplication and drive mission success.

We are looking for an experienced CNC programmer and machinist who is excited about manufacturing development and production parts for launch vehicles and defense systems. We seek team members who can think critically when programming and machining to improve hardware designs and manufacturing processes. This role will require specific skill sets with multi-axis Mill programming and machining. Programming will be completed using Mastercam and verified using Vericut. Parts to be machined on Haas Machining Centers. Must have the ability and eagerness to both program and machine components. This role will primarily focus on 5th Axis Milling work supporting both production and development hardware for various components, specifically launch vehicle engine and space system hardware. In an S5 level role, you will be expected to take projects to completion with a high level of autonomy, mentor junior machinists, and drive shop and process improvements
We machine parts from both billet material and additively manufactured parts:
·       Aluminum
·       Steel
·       Stainless Steel
·       Inconel
Types of Machines:
·       Haas UMC 750 & UMC 1000
·       Haas VM3
·       Haas Gantry Mill
  • Use Mastercam to create new programs and review/edit existing CNC programs for production and development hardware
  • As required, use Vericut to validate programs and maintain revision control on CNC programs
  • Analyze piece parts for DFM to ensure that the parts are optimized for manufacturing and collaborate with engineering to recommend drawing changes as needed
  • Take feedback from engineering and manufacturing teams to rapidly iterate on part processes and designs
  • Set-up, prove out, and operate programs on 3 & 5-axis mills. Perform in-process and first article inspections
  • Support and mentor junior programmers and machinists
  • Work with support teams to ensure machine care and preventative maintenance activities are completed
  • Design and machine custom tooling and fixturing
  • Take an active role driving machine shop process improvements, ensuring shop cleanliness and organization is maintained to a high standard
  • Submit purchase orders for tooling per job requirements and add tools to vendor managed inventory (VMI) list for standard components
  • Support with material loading and handling
  • High School Diploma/GED or Equivalent
  • Minimum 10+ years of CNC Mill programming and machining experience, including demonstrable expert working knowledge of Mastercam, superalloy machining, Haas CNC Machines and Controls
  • OR
  • Minimum 6+ years of CNC Mill programming and machining experience AND
  • Certification and/or provable expert working knowledge of Mastercam
  • Certification and/or provable expert working knowledge of Haas CNC Machines and Haas Controls
  • Expert in superalloy machining
  • Availability to work a standard 10-hour shift schedule (50 hours per week, overtime included).
  • Occasional weekends to support critical deadlines.
  • Experience in interpreting GD&T and providing feedback to engineers in best practice for ease of machining and inspection..
  • Ability to read/interpret and work from controlled technical documentation and processes such as engineering drawings, layout drawings, mechanical drawings, assembly procedures, manufacturing instructions, schematics, and parts lists
  • Proficient usage of a PC; experience with Microsoft Windows, Microsoft Office Suite (Excel, Outlook, Power Point, Word), shop floor management software (ERP) and related programs
  • Strong written and verbal communication skills, excellent concentration with outstanding work efficiency and accuracy, great organizational skills, and a meticulous attention to detail
  • 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 ISO9001 and AS9100D
  • Ability to sit, stand, squat, and walk for extended periods of time
  • Ability to use a computer to complete assignments
  • Ability to communicate with individuals and groups in person, by phone, and telepresence
  • Ability to pick up to 50lbs
  • While performing the duties of this job, the employee will typically work in an office environment
  • Ability to travel up to 25% of the time
  • Ability to occasionally ascend/descend on ladders and/or work on rooftops.
  • Can work in an indoor manufacturing environment 70%, outdoors 30%
  • Travel between our El Segundo (90%) and Port of Long Beach (10%) facilities as required.
  • Occasional travel to our other in-state and out-of-state sites may be required.
  • Listing Details

    Posted
    September 19, 2025
    First seen
    March 26, 2026
    Last seen
    April 23, 2026

    Posting Health

    Days active
    27
    Repost count
    0
    Trust Level
    34%
    Scored at
    April 23, 2026

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    L
    Sr. CNC Programmer and MachinistUSD 44–57