Manufacturing Engineers III, IV, & V

Stefanini, Inc; Los Angeles (CA); On-site; USD 76,000 - 83,000; Full time

Job summary

Stefanini, Inc. seeks a Manufacturing Engineering level 4 in Canoga Park, CA. This 6+ month contract role requires US Citizenship and a DoD Secret clearance or willingness to obtain one. Expect design, fabrication, and assembly responsibilities across rocket engine hardware.

The role covers process development, lean project leadership, tolerance machining, and welding support, with a strong emphasis on cross-functional collaboration and regulatory compliance.

Qualifications

• Welding, machining, and shop-type experience required.
• Bachelor's degree with 6+ years of relevant experience; graduate degree with 4+ years; or 10+ years in lieu of a degree.
• Active DoD Secret clearance or ability to obtain one.
• US Citizenship required.

Responsibilities

• Design and plan layout, fabrication, assembly, and material handling for hardware.
• Develop and implement manufacturing fabrication and assembly processes and systems.
• Lead lean projects and prepare basis of estimates; evaluate suppliers by technical and business criteria.
• Determine tight tolerance machining and support welding processes for complex configurations.

Skills

Welding/machining experience

Problem solving

Education

Bachelor's degree + 6+ years

Graduate degree + 4+ years

10 years experience in lieu of degree

Tools

ProE

CATIA

VisMockup

MS Office

Job description

Job Details

A&D/Semi

Manufacturing Engineering level 4 Canoga Park,CA Posted:8/6/2026 Job Description Job ID#:

86807

Job Category:

A&D/Semi

Position Type:

Contract

Duration:

6+ months

Shift:

1

Positions Available:

2

We are looking for a Manufacturing Engineering level 4 to join our growing team in the greater Los Angeles area. Candidates must be clearable.
Essential Functions: This position will be responsible for mechanical component manufacture assembly and integration into rocket engine and power systems products. Responsibilities include designing and planning of layout component fabrication, assembly and material handling, planning of sequence of operations, and specification procedures. The scope of responsibility will be for several mechanical components or as a process engineer supporting new and developing processes that could be utilized on all programs within the company, with the potential to acquire greater responsibility as performance and experience dictate. The manufacturing engineer work is performed with general oversight. May manage large projects or processes that are both inside and outside of immediate job area. Typically responsible for providing guidance, coaching and training to other employees. Typically responsible for managing complex projects at this level, involving delegation of work and review of work products. The manufacturing engineer communicates within and outside of own function or business area and has responsibility for communicating with parties external to the organization (e.g., customers, vendors, etc.) when necessary. Explains, interprets, and gains cooperation on policies, procedures and practices. The manufacturing engineer work consists of making moderate to substantial improvement or enhancements to systems and processes to improve performance of job area. Opportunities for problem solving and innovation are complex and may require comprehensive information gathering, analysis and investigation to understand the problem. Problems typically involve consideration of multiple issues, job areas or specialties. Problems are generally solved through creative solutions, drawing from prior experience and in-depth analysis of issues. Job Requirements Minimum Security Clearance:

US Citizen

Qualifications: U.S. Citizenship only, no dual citizenship Having an active DOD Secret Clearance or the willingness to obtain one Looking for welding, machining, and shop type experience. Education: Bachelor's Degree and minimum 6 years of prior relevant experience. Graduate Degree and a minimum of 4 years of prior related experience. In lieu of a degree, minimum of 10 years of prior related experience. The manufacturing engineer works to achieve operational targets with direct impact on the departmental results. Contributes to the development of goals for the department and planning efforts (budgets, operational plans, etc.). Duties: 40% - Developing/Designing Support Hardware and Review Engineering Drawings: The candidate will utilize design and business software (ProE, CATIA, VisMockup, and/or other similar CAD/virtual manufacturing tools/software, MS Office applications such as Word, Excel) to develop, design, review and fabricate hardware in support of the Operation and enabling support processes, and Engineering customer. Developing and Implementing Manufacturing Fabrication and Assembly Processes and Systems. The candidate will develop and implement the process of precision turning operation of complex configurations on a wide range of material types which will include the following:

• Determining tooling requirements to safely facilitate optimum positioning of surfaces for machining, cleaning, packaging and protection for the milling process, support and maintain dimensional requirements, determine machine loading, setups, hardware handling instructions and scheduling.
• Perform risk assessments to ensure risks to personnel and environment are eliminated and risk to hardware and facility are accurately assessed and communicated to management.
• Determine clean and etching process for a wide variety of materials.
• Support design reviews - CDR, CoDR PDR.

40% - Managing Projects: The candidate will manage processes in accordance with the Lean methodology which will include process certification, process improvement methods (e.g. Kaizen, 3P, VSM, etc.) and other Bluebook elements. They will also prepare Basis of Estimates (BOE) develop and defend to management key strategic manufacturing plans, risk assessments and proposals that target customer and business goals; and differentiate between suppliers based on their technical process (Repeatability, Reliability) and business (Reliability, Rates, CSP, ISO compliant) capability. 10% - Determining Tight Tolerance Machining: The candidate will determine complex design geometric dimensioning and tolerancing for various machining and measuring methods that meet specifications, tooling and equipment requirements. 10% - Welding Support: The candidate will develop and implement the process of welding of complex configurations on a wide range of material types. They will also determine tooling requirements for the welding process, and support and maintain dimensional requirements $55-$60 per hour DOE #MCTA1

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