Job Title: Systems Engineer II
Work Schedule: M-F, 8AM-5PM, Flexible
Job Classification: Exempt
Primary Location: California, MD
Travel: 12-18 weeks per year
Salary Range: $100,000 to $215,000 depending on experience and skill set
Position Description: Systems Engineer II
Position Summary
The Systems Engineer II provides experienced engineering expertise supporting the development, integration, testing, and analysis of complex DoD mission systems, advanced sensors, and integrated software architectures. This role requires independent investigation, advanced troubleshooting, leadership in test events, and collaborative engagement with government personnel. This work requires deeper technical knowledge to support a small team during laboratory and field test activities in government labs and aircraft environments.
Key Responsibilities
- Lead and execute the installation, configuration, and testing on aircraft and in government laboratories to identify technical deficiencies and provide actionable recommendations to development teams.
- Perform independent reproduction and detailed analysis of field-reported system issues, including root cause validation.
- Provide expert input during design reviews and support requirements derivation and traceability activities.
- Collaborate directly with government personnel and partners to deliver reliable, technically sound solutions.
- Troubleshoot and isolate multi-system problems involving sensors, networks, mission software, and hardware.
- Evaluate, refine, and validate test methodologies to address gaps and ensure consistent system performance.
- Configure complex test bench systems for advanced requirements testing.
- Lead software test events, train junior staff, and guide peer engineers in technical practices.
- Prepare detailed field test reports and consolidate findings for leadership and government stakeholders.
- Support tasking outside of normal business hours (
- Travel to support tasking approximately 12-18 weeks annually
Required Qualifications
- Bachelor of Science in Engineering, Computer Science, Computer Hardware, Mathematics, Physics, or a related technical field; or equivalent experience.
- Strong experience with Linux-based troubleshooting, system diagnostics, and complex system configuration across separate interdependent projects.
- Demonstrated expertise in reverse engineering system behavior to support troubleshooting, testing, and diagnostic workflows.
- Ability to obtain DoD 8570/8140 compliance by certification or education within 6 months of starting.
- Experience with DoD sensor systems (EO/IR, Radar, SIGINT, etc.) and mission systems deployed on one or more DoD platforms.
- Highly articulate communication skills for conveying complex technical behaviors and system interactions.
- US Citizenship and eligibility for TS/SCI clearance.
- Ability to access government facilities and travel between office and government sites as required.
Desired Qualifications
- Strong software troubleshooting experience and familiarity with software development in Linux environments.
- Proficiency with Git or other software configuration management tools.
- Prior Minotaur system experience is strongly desired.
- Ability to assess and troubleshoot complex, interconnected system issues.
- Experience working within DoD cloud environments such as IL5 or higher.
Physical Requirements
- Must be able to lift and carry approximately 40 lbs.
- Must be able to maneuver in confined spaces.
- Must be able to access government locations, facilities, and vessels.
S3I Engineering, LLC is a small business supporting the US Navy. S3I offers a generous benefits package including Medical and Dental benefits, Holiday and Paid Leave, 401K with Matching, and a Profit-Sharing Plan. S3I Employee compensation is highly competitive and commensurate with experience. If you have any of these skills, we encourage you to apply!
