# Senior Mechanical Engineer, Mechanisms

**Company:** [Northwood Space](https://hotfix.jobs/companies/northwood-space)
**Location:** Los Angeles, CA
**Role:** Hardware Engineering
**Salary:** $118k – $162k/yr
**Experience:** 5+ years
**Skills:** Siemens Nx, Solidworks, CAD, Ansys, Kinematic Analysis, Stress Analysis, Fatigue Analysis, Thermal Simulation, Mechanical Design, Materials Selection
**Posted:** 2026-06-25

> Design, analyze, test, and produce precision actuation mechanisms for RF and antenna systems. Requires 3+ years actuation experience, 5+ years CAD, and Top Secret clearance eligibility.

## Job Description

## Responsibilities
- Design and develop antenna actuators to meet product design requirements.
- Develop design criteria working with RF, software, and network engineers.
- Perform kinematic analysis, stress and strain calculations, and fatigue analysis to ensure the mechanical systems can endure the loads and environmental conditions they will face.
- Optimize designs for performance, manufacturability, and cost, ensuring smooth integration with the RF and antenna design requirements.
- Plan and conduct testing of mechanisms, including performance validation, RF system validation, and mechanical stress testing. Ensure all designs meet required standards for both mechanical reliability and RF system performance. Validate motor and actuator integration in real-world scenarios.
- Develop tooling for the fabrication, assembly, and testing of mechanisms used in antenna systems. Provide production support by troubleshooting issues related to mechanisms, and ensure smooth assembly processes for large-scale antenna deployment.
- Prepare detailed design documentation, including drawings, specifications, and test plans, ensuring compliance with industry standards for both mechanical and RF systems. Ensure that all designs meet safety standards and regulatory requirements for antenna and RF system integration.

## Requirements
- Bachelor’s degree in Mechanical Engineering, Aerospace Engineering, or a related field.
- 3+ years of experience designing, implementing, and testing actuation systems.
- 5+ years of experience using CAD software (e.g., Siemens NX, SolidWorks, or similar).
- Experience with thermal and mechanical simulation tools (e.g., ANSYS).
- Strong understanding of mechanical design principles, including kinematics, materials selection, and structural analysis.
- Ownership of at least one precision actuation system from clean sheet to production.
- Successfully obtain and maintain a Top Secret Security Clearance.
- Must be willing to work extended hours and weekends as needed.

## Nice-to-Haves
- Knowledge of manufacturing processes, such as machining, welding, coating, injection molding, and additive manufacturing.
- Basic understanding of electrical systems and components.
- Basic understanding of RF systems and devices.

## Compensation & Benefits
- Base salary range: $118,000 - $162,000.
- Long-term incentives such as company stock options and discretionary performance bonuses.
- Equity, comprehensive medical, vision, and dental coverage, flexible spending accounts, flexible time off, 10 or more paid holidays per year, retirement savings plans, and opportunities for professional development.

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