Systems Engineer I (Full-Time, On-Site)

S3I Engineering•Lexington Park, MD

9d•$90,000 - $130,000•Onsite

About The Position

S3I Engineering provides specialty engineering services, systems integration, and operational support to US Government agencies. Our technical expertise covers multiple facets of the Software, Systems, Cyber, and Hardware Engineering disciplines. Our engineers have expert knowledge of the critical mission management systems and their deployment on various DOD, DHS, and other platforms. S3I is currently looking for entry and mid-level Systems Engineers. You will be working with cutting-edge technology to test complex mission management systems and their sensors. From testing capabilities to optimizing performance and reliability, your expertise will play a pivotal role in ensuring mission success. If you love to solve hard complex problems and are willing to embrace the challenge, embark on a career where every day brings new opportunities to push the boundaries of what is possible. Join us and be a part of shaping the future.

Requirements

Bachelor of Science in Engineering, Computer Science, Computer Hardware, Mathematics, Physics, or related technical field; or equivalent experience.
Foundational experience in Linux-based troubleshooting and system analysis across separate interdependent projects.
Familiarity with constructing or configuring basic computer systems in a Linux environment with multiple interdependent services or projects.
Ability to obtain DoD 8570/8140 compliance by certification or education within 6 months of starting.
Strong organizational and communication skills.
The ability to work within dynamic test environments across organizations.
US Citizenship and eligibility for a TS/SCI clearance.
Ability to access government facilities and travel between office and government sites as required.

Nice To Haves

Familiarity with mission systems or sensor technologies such as EO/IR, Radar, SIGINT.
Exposure to DoD cloud environments including IL5 or higher.
Basic experience with software configuration management tools such as Git.
Previous experience with Minotaur systems is strongly desired.

Responsibilities

Assist in the installation, configuration, and testing of mission systems with related sensors and other integrated software within government labs and aircraft environments.
Conduct basic troubleshooting using Linux command‑line tools and established diagnostic procedures.
Configure test bench systems to support validation of software requirements and system behavior.
Support reproduction of system anomalies reported from fielded systems and assist in documenting root cause indicators.
Participate in design reviews under supervision, offering technical observations aligned with requirements derivation.
Prepare field test reports, summary documents, and structured notes for senior engineers and government personnel.
Follow DoD and DCSA cybersecurity practices during configuration, testing, and system interaction.
Provide dependable and professional support to government stakeholders and partner organizations.
Support tasking outside of normal business hours (<10% annually)
Travel to support tasking approximately 12-18 weeks annually