CNC Machinist IV

Sierra Space Careers:
At Sierra Space, we build the missions and systems that keep our world secure in the domain above Earth. Sierra Space team members share a spirit of innovation and collaboration and a belief that we can deliver on the boldest missions in space today. Together with our customers, we aim to safeguard our nation, sustain human presence in space, and secure the freedom of operations in low Earth orbit and beyond.

Our success is measured by the trust of those who rely on what we build and deliver, and our technologies keep the United States and its allies mission‑ready throughout space. We are mission‑driven, and together, we are an extraordinary team.

The CNC Machinist IV will be responsible for operating, programming, and optimizing manual and CNC machines to produce high‑precision aerospace components. This role involves performing advanced equipment setup and maintenance, using precision measurement tools, fabricating fixtures, and ensuring adherence to shop safety and best practices. The CNC Machinist IV will also lead process improvement initiatives, mentor junior machinists, and provide technical leadership within the team.

In this role, you will operate, program, and optimize CNC machines to produce high‑precision aerospace components while performing advanced equipment setup and maintenance activities. You will deburr and clean machined parts, use precision measurement tools to ensure components meet specified tolerances, and adhere to and enforce established best shop practices, including PPE and shop safety requirements. Additionally, you will lead and enforce 5S, FOD, and ESD process protocols, collaborate with team members to improve processes and achieve production goals, and develop and optimize CNC programs for complex parts and assemblies.

You will maintain accurate records of machining operations and part inspections, troubleshoot and resolve complex machining issues, and lead continuous improvement initiatives to enhance productivity and quality. Furthermore, you will train and mentor entry‑level, mid‑level, and senior machinists and apprentices, participate in root cause analysis and corrective action activities, and ensure compliance with quality standards and regulatory requirements. You will also lead and participate in cross‑functional teams to drive process improvements, provide technical leadership and expertise within the machining team, and evaluate and recommend new machining technologies and equipment.

Our mission is driven by an unyielding commitment to advancing space‑based technology in service of our customers and safeguarding national security. We seek individuals who are passionate about innovating beyond boundaries and relentlessly pursuing solutions that protect, preserve and empower – to join us in this critical mission. We’re looking for team members who align with our values, mission and goals – while also meeting the minimum qualifications below.

The preferred qualifications are a bonus, not a requirement.

Typically 8+ years of related experience. Expert knowledge of best shop practices including PPE and shop safety requirements. Experience performing advanced equipment setup and maintenance activities, and display expert mechanical aptitude, shop tool, and hand tool competency. Proficient in the use of precision measurement tools and fabricating fixtures for flight and non‑flight assemblies. Ability to lead and enforce 5S, FOD and ESD process.

Certification:
Machinist certification or related certification. Extensive experience in a manufacturing or machining environment. Proficient in CNC programming languages such as G‑code and M‑code. Understanding of…