Systems Engineer
SOSi · Annapolis Junction, MD, United States · Posted Jun 30, 2026
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Overview
SOSi is seeking a Systems Engineer C4l and/or C5ISRT experience to support a government program in Annapolis Junction, Maryland. This position will support a multi-functional team and requires both strong technical and collaborative skills. Extensive on the job training will be required and the ideal candidate will embrace the knowledge transfer process.
Essential Job Duties
Leverage technical expertise to develop creative solutions to technical problems related to
communications equipment.
Write and review reports related to hardware and software capabilities.
Develop hardware and software prototypes and emulators. Conduct testing to validate solutions.
Create schematics for existing equipment and prototypes.
Develop custom data processing tools in Python, C++.
Provide detailed written test reports.
Conduct demonstrations of tests for line and supervisory personnel.
Minimum Requirements
Active in-scope TS/SCI with Cl Polygraph.
5 years of experience in systems engineering.
5 years of experience supporting software development.
5 years of electrical engineering experience.
Experience with Labview.
Technical writing experience.
Strong oral communication skills, including conducting formal presentations.
Experience with UHF, HF, and ELF frequency spectrums and encrypted communications
systems/equipment.
Service in US military or as a contractor/government employee supporting C4I/C5ISRT missions.
Experience writing code in Python and C++.
Preferred Qualifications
Degree in systems or electrical engineering.
10 years of experience in system engineering.
8 years of experience supporting software development.
8 years of electrical engineering experience.
Work Environment
Working conditions are normal for an office environment.
Fast paced, deadline-oriented environment.
May require periods of non-traditional working hours including consecutive nights or weekends (if applicable).
Working at SOSi
All interested individuals will receive consideration and will not be discriminated against for any reason.
Founded in 1989, SOSi is among the largest private, founder-owned technology and services integrators in the defense and government services industry. We deliver tailored solutions, tested leadership, and trusted results to enable national security missions worldwide.