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Sr. CNC Programmer and Machinist
full timeEl Segundo, California
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AT A GLANCE
ManufacturingSenior6+ years experienceFull TimeHigh school diploma requiredTravel: 30% travel
Required
- 6+ years experience
- High school diploma
Long Wall Company was created in 2024 to accelerate missile defense technology for the U.S. and our allies. We specialize in ballistic missile defense and are developing Cyclops, a low-cost, mass-producible interceptor. We also produce containerized launchers and offer low-cost t
About the role
Long Wall Company was created in 2024 to accelerate missile defense technology for the U.S. and our allies. We specialize in ballistic missile defense and are developing Cyclops, a low-cost, mass-producible interceptor. We also produce containerized launchers and offer low-cost targets for threat replication. The future of global security depends on defensive technology that redefines cost, magazine depth, and distribution to deter and defend against evolving threats. Join us.
WHAT WE LOOK FOR
Mission-Driven Problem Solvers– The problems in missile defense demand ingenuity. We want engineers 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 engineers who take full responsibility for delivering flight-ready work while recognizing that no one succeeds alone. The best engineers make their teammates better, knowing that complementary skills create force multiplication and drive mission success.
Sr. CNC Programmer and Machinist
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
Responsibilities
- 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 in 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
Requirements
- High School Diploma/GED or Equivalent
- Minimum 10+ years of CNC Mill programming and machining experience, including demonstratable expert working knowledge of Mastercam, superalloy machining, Haas CNC Machines and Controls
- 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.
- Expert proficiency in 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, 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 of time.
- Ability to occasionally ascend/descend on ladders and/or work on rooftops.
- Ability to lift 25lbs repeatedly and often throughout the day.
- Ability to communicate with individuals and groups in person, by phone, and telepresence.
- 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.
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