Sr. CNC Programmer and Machinist

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

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

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

• 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.

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

Experience in interpreting GD&T and providing feedback to engineers on best practices 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, PowerPoint, 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 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 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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