Senior Cnc Lathe Machinist

About Us

Advanced Structural Technologies (AST) is a leading aerospace manufacturer specializing in forged, spun, and machined components for the most demanding mission-critical applications in the industry. For over 25 years, we have built a reputation for precision engineering, innovation, and the kind of high-quality manufacturing that gets parts onto rockets, satellites, and defense platforms.

Located in Oxnard, California, AST operates out of cutting-edge facilities spanning over 250,000 sq. ft., including our newest expansion completed in 2024. We employ approximately 185 skilled professionals across multi-shift operations and continue to grow as the commercial space industry expands.

Position Overview

We are looking for a Senior CNC Lathe Machinist who takes pride in their craft and wants to work on parts that matter. This is a hands-on, high-mix, low-volume environment where every job is different and the bar for precision is high. You will own your setups from start to finish—reading the print, selecting tooling, dialing in the program, and walking the first article over to QA with confidence.

This is not a button-pushing position. We need a machinist who can think through a tough setup, troubleshoot when something is not running right, and bring ideas to the table for how to make the process better. If you are the person other machinists ask for help, we want to talk to you.

What Sets This Role Apart

* You will machine parts for the leading names in commercial space and defense—work you can point to and be proud of

* High-mix, low-volume environment means constant variety; you will not be running the same part for months on end

* Modern facility with continued investment in equipment and infrastructure (newest expansion completed in 2024)

* Direct access to engineering and production leadership—your input on process improvements is heard and acted on

* Long-term career growth in a stable, expanding aerospace manufacturer

Key Responsibilities

* Own complete CNC lathe setups from blueprint to first article approval on complex aerospace components

* Read and interpret detailed engineering drawings and GD&T to determine the best approach for each job

* Select tooling, workholding, and machining strategies for high-precision turning operations

* Edit and optimize CNC programs at the machine to improve cycle time, surface finish, and tool life

* Verify part dimensions using precision measuring instruments (calipers, micrometers, indicators, etc.) and ensure compliance with tight tolerances

* Diagnose and resolve machining issues, tool wear, and setup inconsistencies before they impact quality or schedule

* Maintain accurate setup sheets, tool lists, and inspection records to support repeatability

* Collaborate with engineering, programming, and quality teams to refine processes and reduce cycle times

Qualifications

* 5 years of experience setting up and running CNC lathes in a precision manufacturing environment

* Strong proficiency with Fanuc controls; experience with live tooling or multi-axis lathes is a plus

* Ability to read, edit, and write G-code at the machine

* Deep understanding of turning processes, speeds and feeds, tool selection, and workholding strategy

* Ability to read and interpret complex mechanical drawings and GD&T

* Experience machining tight-tolerance parts in aerospace, defense, medical, or other high-precision industries strongly preferred

* Experience with high-mix, low-volume or short-run production environments

* Strong attention to detail, problem-solving ability, and a commitment to quality workmanship

* Ability to lift up to 45 lbs and stand for extended periods

* High school diploma or equivalent required; technical training, apprenticeship, or trade school background a plus

Why Join AST?

At AST, we believe in fostering a work environment where employees can thrive both personally and professionally. We offer a competitive benefits package, including:

* Medical, Dental, and Vision Insurance

* 401(k) Savings Plan

* Company-Sponsored Life Insurance

* Short-term and Long-term Disability Coverage

* Paid Holidays

* Paid Vacation and Sick Leave

Job Type & Pay

* Job Type: Full-Time, In-Person

* Pay Range: $35.00 – $50.00 per hour (commensurate with experience)

Hours & Schedule

* Schedule: Monday – Friday (8-hour shift)

* Expected Hours: 40 hours per week (plus overtime as needed)

• If you are a senior machinist who wants to work on aerospace hardware that flies, contribute to a growing team, and take pride in the parts you build, we want to hear from you. Apply today and join the AST team