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HomeCompaniesSosi1Senior Software Systems Engineer

Senior Software Systems Engineer

Sosi1 · Falls Church, VA, United States · Active · SmartRecruiters

Job facts

FieldValue
CompanySosi1
TitleSenior Software Systems Engineer
Normalized title-
Department / teamOther
LocationFalls Church, VA, United States
Work model-
Employment typeFull Time
Salary-
Statusactive
ATS providerSmartRecruiters
Posted / first seen2026-05-29 / 2026-05-31
Changed / last seen2026-05-31 / 2026-06-06

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PageWhat it containsOpen
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Company breakdownsRole, location, ATS, and work model facets for this company.Open
ATS provider jobsActive postings observed through SmartRecruiters.Open
Provider filtered searchThe same provider as a filtered job collection.Open
City jobsActive postings in Falls Church.Open
Department jobsActive postings in Other.Open
Lifecycle eventsOpen, update, close, and reopen events for this posting.Open
Original postingCanonical source or apply URL captured from the ATS.Open

Linked records

CompanySosi1
Source034d3260-e727-4450-bb59-4990471b7cb8
ATS providerSmartRecruiters

Description

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. OUSW (R&E) is seeking a highly skilled senior software systems engineer to be the technical lead for a complex project involving the design, development, integration and assessment of complex System of Systems (SoS) architectures for multi-domain autonomous uncrewed platforms (air, surface, and subsurface) in tactical operations over contested radio networks. This role combines software architecture and systems engineering expertise to prototype advanced, multi-domain autonomy, AI-enabled command and control, and distributed system-of-systems operations. The ideal candidate is a trusted advisor and technical expert with experience guiding model-based systems engineering activities, SoS integration, and test activities across virtual, hardware-in-the-loop (HIL), and live experimentation venues. Key Responsibilities Lead the development, implementation and evolution of MOSA-aligned SoS architecture to integrate uncrewed platforms across multiple domains. Lead the software integration of advanced autonomy capabilities for mission orchestration, multi-vehicle coordination, and human-supervised command and control of Agentic-AI based solutions from multiple industry partners. Lead the engineering of resilient command, control, and data exchange mechanisms over tactical radio networks (e.g., MANET, Link-16, SATCOM) to ensure operations in degraded, disconnected, or contested environments. Coordinate technical integration across software products from multiple industry partners into vehicle platforms and payloads from other industry partners. Coordinate System Eng & Architecture activities with M&S and test activities on a continuous basis to ensure alignment throughout execution. Serve as a key interface for government stakeholders, industry partners, and technical teams, aligning objectives with OUSW(R&E), Service stakeholders, and transition partners. Provide technical guidance for digital engineering, mission simulation, and test planning activities. Bachelor's or Master's degree in Computer Science, Systems Engineering, Software Engineering, or a related technical discipline. 10+ years of proven experience in software architecture, systems engineering, and integration within the defense aerospace or maritime sectors. Deep working knowledge of unmanned and autonomous systems, cross-domain platform integration, and complex System of Systems (SoS) engineering. Strong understanding of RF communications, tactical data links, mesh networking, and secure communications protocols suitable for defense applications. Cognizant of state of the technology in Agentic AI and multi-agent systems for autonomy capabilities. Experience leading and collaborating with cross-functional teams, including interactions with the Joint Staff, Combatant Commands, Military Services, or OSD organizations. Proven ability to communicate complex technical findings to senior leadership, technical experts, and non-technical stakeholders. Active Top Secret clearance (TS/SCI preferred). 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.

Full job record

Job IDa3d4e742497e06548bd6f3c8e18bcf17fcbf23ec
Org ID5a59924f-82b0-46db-a713-0bb2cbbe3d35
Source ID034d3260-e727-4450-bb59-4990471b7cb8
Board ID034d3260-e727-4450-bb59-4990471b7cb8
Providersmartrecruiters
Provider Job Key3743990013383116
TitleSenior Software Systems Engineer
Normalized Title
Statusactive
Activeyes
Location TextFalls Church, VA, United States
DepartmentOther
Team
Employment Typefull_time
Workplace Type
Remote Policy
CountryUnited States
RegionVA
CityFalls Church
Salary RawFounded 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. OUSW (R&E) is seeking a highly skilled senior software systems engineer to be the technical lead for a complex project involving the design, development, integration and assessment of complex System of Systems (SoS) architectures for multi-domain autonomous uncrewed platforms (air, surface, and subsurface) in tactical operations over contested radio networks. This role combines software architecture and systems engineering expertise to prototype advanced, multi-domain autonomy, AI-enabled command and control, and distributed system-of-systems operations. The ideal candidate is a trusted advisor and technical expert with experience guiding model-based systems engineering activities, SoS integration, and test activities across virtual, hardware-in-the-loop (HIL), and live experimentation venues. Key Responsibilities Lead the development, implementation and evolution of MOSA-aligned SoS architecture to integrate uncrewed platforms across multiple domains. Lead the software integration of advanced autonomy capabilities for mission orchestration, multi-vehicle coordination, and human-supervised command and control of Agentic-AI based solutions from multiple industry partners. Lead the engineering of resilient command, control, and data exchange mechanisms over tactical radio networks (e.g., MANET, Link-16, SATCOM) to ensure operations in degraded, disconnected, or contested environments. Coordinate technical integration across software products from multiple industry partners into vehicle platforms and payloads from other industry partners. Coordinate System Eng & Architecture activities with M&S and test activities on a continuous basis to ensure alignment throughout execution. Serve as a key interface for government stakeholders, industry partners, and technical teams, aligning objectives with OUSW(R&E), Service stakeholders, and transition partners. Provide technical guidance for digital engineering, mission simulation, and test planning activities. Bachelor's or Master's degree in Computer Science, Systems Engineering, Software Engineering, or a related technical discipline. 10+ years of proven experience in software architecture, systems engineering, and integration within the defense aerospace or maritime sectors. Deep working knowledge of unmanned and autonomous systems, cross-domain platform integration, and complex System of Systems (SoS) engineering. Strong understanding of RF communications, tactical data links, mesh networking, and secure communications protocols suitable for defense applications. Cognizant of state of the technology in Agentic AI and multi-agent systems for autonomy capabilities. Experience leading and collaborating with cross-functional teams, including interactions with the Joint Staff, Combatant Commands, Military Services, or OSD organizations. Proven ability to communicate complex technical findings to senior leadership, technical experts, and non-technical stakeholders. Active Top Secret clearance (TS/SCI preferred). 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.
Salary Min
Salary Max
Salary Currency
Salary Period
Source URLhttps://jobs.smartrecruiters.com/SOSi1/3743990013383116-senior-software-systems-engineer
Apply URLhttps://jobs.smartrecruiters.com/SOSi1/3743990013383116-senior-software-systems-engineer?oga=true
First Seen At2026-05-31 17:30:46Z
Last Seen At2026-06-06 18:47:58Z
Last Checked At2026-06-06 18:47:58Z
Last Changed At2026-05-31 17:30:46Z
Inactive At
Source Posted At2026-05-29 21:14:18Z
Source Updated At
Raw Payload Uris3://job-postings-prod-raw-590183727216/raw/provider=smartrecruiters/board=sosi1/date=2026-06-06/2026-06-06T18-47-51-315Z-e7a3ea412d9b99d4f42d3f44c8b48282949638fd36dfd8acce6ba827260faf78.json
Event Fields
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Parsed Structured
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Extensions
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Native Structured
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