Senior Machinist Job Category: Service Contract Act Time Type: Full time Minimum Clearance Required to Start: Secret Employee Type: Regular Percentage of Travel Required: Up to 10% Type of Travel: Local The Opportunity: CACI is seeking a senior CNC Machinist to support its prototype machine shop, located in Columbia, MD, for the machining of precision parts that will be used in Research and Development tests and assessments in support of the development of DoD ship and submarine systems. This is a state-of-the-art prototype fabrication facility equipped with both HAAS and Okuma machines. Machinists frequently use both 4- and 5-axis CNC machines, mills, and lathes to fabricate parts with tolerances of +/- .001". Both the research and development environment, coupled with the advanced equipment available, makes this a fantastic opportunity to continue honing your skillset as a machinist. Responsibilities: Ability to perform set up machining jobs in CNC Vertical machining centers
Experience programming and machining with 4- and 5-axis CNC machines in a wide variety of materials
Set up, adjust, and operate basic machine tools, CNC machines, and many specialized or advanced tools in order to perform precision machining operations.
Program and edit 3-axis and simultaneous 4- and 5-axis toolpath programs for CNC machines using Siemens NX, CAMWorks Pro (SolidWorks Plug-in), Fusion 360 CAM.
Ability to design and build fixtures
Knowledge of G and M codes with ability to program at the control to build fixtures and edit CAM generated programs
Ability to select appropriate cutters and tool holders/knowledge of Feeds and Speeds
Ability to set-up and operate the full range of machine tools found in a well-equipped prototype development shop
Ability to maintain dimensional accuracy, to specified tolerances that may be less than +/-.001", during machining processes, through the use of measuring instruments (e.g. vernier calipers, inside/outside & depth micrometers, gage blocks, surface and height gages, and dial indicators).
Ability to work independently with minimal supervision
Comfortable working in a collaborative environment
Ability to read blue prints and mechanical drawings
Knowledge of Mil-Spec and GD&T specifications
Ability to work from verbal instructions and sketches
Ability to perform machine shop math and trigonometry
Ability to lift and maneuver objects weighing 80 pounds
Adhere to safety protocols Qualifications: Required: At least 7 to 10 years of work experience in multi-axis CNC machining
CAM and Solid modeling CAD experience
Journeyman CNC Machinist qualification
Trade School certificate or equivalent experience
High School diploma or equivalent
DoD Secret Clearance or capability to be granted and maintain DoD Secret Clearance
Knowledge of Shop, Facility and Division Safety Policies and requirements Desired: Experience with HAAS/Okuma machines
Experience with HAAS machine automation
Experience with CNC lathes and CNC mills
Ability to operate a forklift a plus - What You Can Expect: A culture of integrity. At CACI, we place character and innovation at the center of everything we do. As a valued team member, you'll be part of a high-performing group dedicated to our customer's missions and driven by a higher purpose - to ensure the safety of our nation. An environment of trust. CACI values the unique contributions that every employee brings to our company and our customers - every day. You'll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality. A focus on continuous growth. Together, we will advance our nation's most critical missions, build on our lengthy track record of business success, and find opportunities to break new ground - in your career and in our legacy. Your potential is limitless. So is ours. Learn more about CACI here. Pay Range: There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI, you will receive comprehensive benefits such as; healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits. Learn more here . The proposed salary range for this position is: $41,400 - $82,600 CACI is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, age, national origin, disability, status as a protected veteran, or any other protected characteristic.
Date Posted: 10 June 2025
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