Mechanical Engineer IV

The Mechanical Engineer IV contributes to all aspects of multiple projects, concept, design, development, implementation, and revisions, across technologies including autonomous command and control, object detection, scientific data analysis, real-time mission operations, and optomechanical systems.

Lead the design, development, and optimization of complex mechanical systems involving drones, seekers, optical assemblies, GPS antennas, computers, and power systems

Serve as technical lead on high-impact projects; define scope, delegate tasks, and mentor junior and mid-level engineers

Lead root cause analysis on critical design and manufacturing issues; evaluate new tools, methods, and materials

Act as a key liaison between mechanical engineering and other disciplines; contribute to proposals and communicate with customers and non-technical stakeholders

Oversee full-lifecycle prototype development, from concept through field deployment, including structural, thermal, and dynamic validation testing

Review and approve engineering documentation, drawings, BOMs, and test reports; ensure compliance with ASME, MIL-STD, and ITAR/export requirements

Drive continuous improvement in design practices and DFM/DFA across product lines

Drive design transition from engineering to full-scale production, including supplier qualification and technical negotiations

Bachelor's degree in mechanical engineering, physics, or a related field

6+ years of relevant work experience

Proficiency in CAD software (SolidWorks, AutoCAD, Inventor, or similar)

Strong understanding of mechanical engineering principles (thermodynamics, fluid dynamics, solid mechanics, heat transfer, materials science)

Strong understanding of manufacturing techniques

Knowledge of industry standards and regulations (ISO, ASME, etc.)

Experience leading projects from concept to completion, prioritizing tasks and managing timelines

Excellent problem-solving skills and ability to work in a fast-paced, collaborative environment

Master's degree

Experience with FEA, optomechanical design, thermal management, lightweight structures, or CFD tools

Experience flying or able to fly drones

Computer/electronics assembly experience

Basic machine shop experience (soldering, lathe, mill, etc.)

See your work fielded fast. Get hands-on with hardware and watch it deployed to customers within months, not years.

Build next-generation defense technology. Our engineering work protects warfighters, reduces collateral damage, and safeguards civilians.

Speed and accuracy. We move quickly, and you'll see your work through from concept to deployment, not just one slice of the pipeline. No process bottlenecks; we move with speed and agility.

Flexible schedule. Working at OKSI gives you the opportunity to see your work come to fruition while still maintaining real work-life balance through our hybrid schedule options.

Professional growth. OKSI is expanding, which means faster-than-typical opportunities to advance your career.