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Open Positions

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Lead Software System Safety Engineer (EC3)

Dahlgren, VA (Full-time Onsite) Full-Time Secret Clearance Required
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Job Summary

We are seeking an experienced Lead Software System Safety Engineer (EC3) to join our engineering team in Dahlgren, VA. In this role, you will lead critical software safety analyses, risk assessments, and testing to ensure complex system architectures and weapon systems meet stringent safety standards. You will serve as a technical authority, defending safety conclusions before key review panels and boards.

Key Responsibilities

  • Lead the development and execution of software safety analyses, safety testing, and comprehensive risk assessments
  • Identify, document, and track resolutions for software safety anomalies from initial identification through mitigation
  • Determine software Level of Rigor (LOR) tasks based on software criticality indices, mapping tasks, and defining software contributions to overall system risk
  • Conduct thorough peer review analyses of source code written in languages such as C++ and C#
  • Develop, coordinate, and execute technical data packages, System Requirement Hazard Analyses (SRHA), and Safety Assessment Reports (SAR)
  • Prepare and deliver high-level technical presentations to support the Weapon System Explosives Safety Review Board (WSESRB) and the Software Systems Safety Technical Review Panel (SSSTRP)
  • Defend complex software safety engineering conclusions and hazard analyses before customer review boards and technical panels

Required Qualifications

  • Education & Professional Certifications:
  • Bachelor of Science (BS) degree from an accredited college or university in an engineering, scientific, or technical discipline
  • General Experience:
  • At least seven (7) years of professional experience in software engineering applied to program development, modeling, and simulation
  • Specialized Experience:
  • At least two (2) years of focused experience as a System Safety Engineer performing software safety analysis, software safety testing, risk assessment, and tracking software safety anomalies
  • Demonstrated experience conducting peer reviews of code in C++ or C#
  • Proven track record coordinating and delivering technical data packages, Safety Assessment Reports (SAR), and System Requirement Hazard Analyses
  • Direct experience developing and presenting material to the Weapon System Explosives Safety Review Board (WSESRB) and the Software Systems Safety Technical Review Panel (SSSTRP)
  • Demonstrated ability to identify software Level of Rigor (LOR) tasks for a given software criticality index and map software contributions to overall risk
  • Proven ability to authoritatively defend engineering conclusions in front of software safety panels

Work Location & Environment

Location: Dahlgren, VA
Schedule: Full-time, Onsite

Interested in this position? We'd love to hear from you!

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Software Engineer

Dahlgren, VA (On-site / Travel) Full-Time Secret Clearance Required
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Job Summary

SSTi is seeking a Software Engineer in real-time, safety-critical software development for missile systems and weapon system test equipment. 

Key Responsibilities

  • Provide software development for missile system communications test sets and virtual operational missile (VOM) programs
  • Design, develop, and maintain real-time, object-oriented software using VxWorks SMP RTOS on multi-core VME-based systems
  • Participate in Waterfront Integration Tests (WITs), land-based tests, and flight test events

Required Qualifications

  • Bachelor's degree in Electrical Engineering, Computer Science, or related field 
  • Experience in software engineering,  C/C++ coding and VxWorks
  • Active Secret security clearance

Preferred Qualifications

  • Experience supporting Aegis BMD, AAW, and missile flight test programs
  • Familiarity with Standard Missile initialization messages and telemetry formats
  • Experience with VxWorks RTOS, including SMP and multi-core architectures
  • Experience writing code in C/C++ on real-time operating systems

Benefits

Competitive salary commensurate with experience
Comprehensive health, dental, and vision insurance
401(k) with employer match
Paid time off and federal holidays

Interested in this position? We'd love to hear from you!

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Systems Engineer

 On-Site / Travel Full-Time or Part-Time Secret Clearance Required
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Job Summary

SSTi is seeking a Systems Engineer with hands-on experience supporting Aegis Combat System (ACS) operations, Ballistic Missile Defense (BMD), and Anti-Air Warfare (AAW) testing. The ideal candidate will provide shipboard and land-based system engineering support during simulated and live fire events and Waterfront Integration Tests (WITs), with a strong focus on operational accuracy, data collection, and test documentation.

Key Responsibilities

  • Serve as Aegis Combat System Scribe during shipboard and land-based test events for ABMD and AAW live fire and simulated missions
  • Record and document combat system activity, producing detailed event timelines and run logs
  • Identify, document, and track combat system issues with potential tactical impact (CPCRs, TORs)
  • Support data analysis teams by documenting expected behaviors and system excursions
  • Collaborate with Navy operators, system engineers, SMEs, and test personnel

Required Qualifications

  • Bachelor's degree in Engineering, Computer Science, or related field (or equivalent experience)
  • 5+ years of experience supporting Aegis Combat Systems, missile defense, or naval combat systems
  • Active Secret security clearance
  • Ability to work effectively in shipboard, lab, and operational test environments

Preferred Qualifications

  • Prior U.S. Navy combat systems or operations experience
  • Strong understanding of Aegis BMD and AAW operational concepts
  • Experience documenting system performance and test results
  • Direct experience supporting WITs, live fire events, or integrated combat system testing
  • Strong written communication skills for technical reporting and documentation

Benefits

Competitive salary based on experience
Comprehensive health, dental, and vision insurance
401(k) with employer match
Paid time off and federal holidays
Opportunity to support mission-critical Navy programs

Interested in this position? We'd love to hear from you!

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Shipboard Project Engineer

Dahlgren, VA (Remote / Hybrid) Full-Time Secret Clearance Required
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Job Summary

SSTi is seeking a Shipboard Project Engineer (PE) to collaborate with combat system technical Subject Matter Experts (SMEs), ship personnel, and other Government stakeholders to ensure the readiness of shipboard combat/weapon system during test planning and execution.

Key Responsibilities

  • Lead in assessing the combat/weapon system's readiness for planned events, including maintenance checks, integration, operability assessments, and other workup efforts
  • Ensure comprehensive documentation of all potential and confirmed issues, such as software, hardware, and logistics, using Test Observation Reports (TORs) managed via a TOR database
  • Manage, coordinate, and oversee successful completion of combat system testing

Required Qualifications

  • Experience as a project team leader responsible for personnel, performance, and schedules
  • Minimum seven (7) years of experience with the maintenance, operations and testing, of Navy combat systems or weapon systems (Aegis, Sea Based Weapon Systems, Ship Self Defense System, or Littoral Combat Ship)
  • Direct experience developing Department of Defense standard documentation (test plans, test procedures, status reports, final reports)
  • Experience that demonstrates a strong understanding of naval combat system or weapon systems' functions and operations
  • Must attain Training Qualification Standard (TQS) qualification within one year of assignment
  • Active Secret security clearance

Preferred Qualifications

  • Bachelor of Science or higher degree from an accredited college in an applicable discipline (Electrical/Electronic Engineering, Software Engineering, Computer Science, or Electrical/Electronic Technology)
  • Experience leading and administering technical training (Systems Test Officer, Combat Systems Officer, Combat Systems Maintenance Manager, Lead Chief Petty Officer of Combat Systems divisions)

Benefits

Competitive salary commensurate with experience
Comprehensive health, dental, and vision insurance
401(k) with employer match
Paid time off and federal holidays

Interested in this position? We'd love to hear from you!

Apply Today

Why Join SSTi?

Discover the advantages of building your career with Simulation Systems Technologies, Inc.

35+ Years Experience

Join a company with decades of proven expertise in defense and technical services.

Industry Leading Certifications

Work with an organization that holds CMMC certification and DoD Trusted status.

Team-Oriented Culture

Be part of a collaborative team that values innovation, integrity, and excellence.

Mission Impact

Contribute to critical national defense programs that make a real difference.

Ready to Advance Your Career?

Join our team of dedicated professionals and help shape the future of defense technology. Send us your resume today!

Or send your resume directly to: careers@s-s-t-i.com