2,065,048open jobs
122,178companies
241,919added this week
Browse all
Salary
$157k – $224k per year
Location
Remote (United States)
Seniority
Staff · 8+ years exp

Confirmed on the employer's own hiring board on Oct 30, 2026. First seen by Alion on Jan 9, 2026. Systems and Technology Research scores A on the Alion truth index.

Overview
Company
Impact
Profile match
Systems and Technology Research is an American defence research company that develops sensing, autonomy and decision systems for United States government customers. Its engineers work on radar and electro-optical signal processing, multi-sensor fusion, machine learning applied to intelligence problems, autonomous mission planning and cyber capabilities, typically under research contracts with defence agencies rather than as a product vendor. Headquartered in Woburn, Massachusetts with offices in Arlington and Dayton, it employs mostly cleared technical staff and competes for work against the federally funded research centres and other defence laboratories.

STR is hiring a Lead Model-Based Systems Engineer (MBSE)  in our Woburn, MA office to work across a broad portfolio of DoD mission areas. The Systems Engineer should have experience architecting systems, working across the Systems Engineering Lifecycle, a deep understanding of Systems Engineering principles, reverse engineering techniques, and the ability to work with complex software systems and the utilization of Digital Engineering/MBSE to accomplish program goals. The candidate will support STR’s Systems Development Division to achieve architectural integrity and traceability from requirements analysis through system and software development and production system deployment.

This position offers the opportunity to work with leading domain experts developing solutions to solve the most challenging national security problems. Our teams consist of motivated individuals with degrees in engineering, computer science, mathematics, physics, and data science. The ideal candidate will be experienced in Systems Engineering processes and techniques, Modeling and Simulation, software-based systems, Digital Engineering/MBSE and be excited about opportunities to grow and be a source of subject matter expertise across the organization.

The Systems Engineer should have experience implementing a rigorous MBSE approach to develop DoD systems. New programs at STR will be looking to adopt agile approaches that incorporate model-based requirements management and traceability with software development. This position is well suited for a Systems Engineer with a software systems background who is interested in improving the state of the practice and demonstrating the advantages that MBSE can offer.

What you will do:

  • Utilize your Systems Engineering skillset as part of a tightly knit team to design, develop, implement, and deploy advanced software systems
  • Analyze, reverse-engineer, derive, and define requirements from ambiguous or incomplete software system implementations and codebases
  • Develop/generate documentation (e.g. Systems Requirements Document, SysML models) to capture requirements of new and existing systems
  • Perform gap analysis between derived requirements and current system capabilities to identify missing features or functionalities
  • Assist other technical contributors throughout the software lifecycle, from early prototypes to fully integrated systems
  • Implement MBSE approaches using SysML in Cameo
  • Work closely with domain experts and software development teams to realize program designs for a diverse set of applications, including:
    • Distributed mission planning
    • Intelligence Surveillance Reconnaissance (ISR) management
    • Decision making support to human analysts/planners
  • This position is based in one of our offices but will take advantage of STR’s flexible, hybrid environment: we anticipate that you could work remotely as much as 25% of the time
  • Any time work does not require use of STR’s facilities, you are welcome to work remotely

Who you are:

  • This position requires an Active DoD Top Secret Clearance with SCI eligibility, for which U.S. citizenship is needed by U.S. Government
  • BS, MS or PhD in Systems Engineering, Computer Science, Aerospace Engineering, Electrical Engineering, or a related technical field
  • Experience implementing open architectures and integrating with large scale software-intensive systems and platform systems
  • Strong ability to derive requirements from existing software and capture new customer requirements, and translate those into development tasks for software teams
  • Comfortable working in dynamic environments and adjusting to changing priorities
  • Minimum of 8 years work experience as a Systems Engineer or related field
  • Minimum of 3 years experience architecting systems using system modeling tools (SysML in Cameo)

Even Better:

  • Domain expertise or familiarity with one or more of the following areas is highly desirable:
    • Sea, air, and space platforms, mission planning, and C2 systems
    • Sensor Resource Management
    • Electronic Warfare
    • Software deployment in cloud-based systems
    • Government Open System Architectures (UCI, OMS, COARPS)
  • 5+ years of experience in architecting systems using system modeling tools (SysML in Cameo)
  • Experience porting models/designs from SparxEA to Cameo
  • Experience in Java, Python, or object-oriented programming languages
  • Agile software development experience and/or certification

Pay Information

Full-Time Salary Range: $157,000 - $224,000

The salary range listed is based on external market data. Offers are based on factors, such as but not limited to, the candidate’s experience, education, training, key skills/critical skills, security clearances, and prevailing market and business conditions.

STR is a growing technology company with locations near Boston, MA, Arlington, VA, near Dayton, OH, Melbourne, FL, Carlsbad, CA, Atlanta, GA, and Denver, CO. We specialize in advanced research and development for defense, intelligence, and national security in: cyber; next generation sensors, radar, sonar, communications, and electronic warfare; and artificial intelligence algorithms and analytics to make sense of the complexity that is exploding around us.

STR is committed to creating a collaborative learning environment that supports deep technical understanding and recognizes the contributions and achievements of all team members. Our work is challenging, and we go home at night knowing that we pushed the envelope of technology and made the world safer.

STR is not just any company. Our people, culture, and attitude along with their unique set of skills, experiences, and perspectives put us on a trajectory to change the world. We can't do it alone, though - we need fellow trailblazers. If you are one, join our team and help to keep our society safe! Visit us at  www.str.us  for more info.

STR is an equal opportunity employer. We are fully dedicated to hiring the most qualified candidate regardless of race, color, religion, sex (including gender identity, sexual orientation and pregnancy), marital status, national origin, age, veteran status, disability, genetic information or any other characteristic protected by federal, state or local laws.

If you need a reasonable accommodation for any portion of the employment process, email us at  [email protected]  and provide your contact info.

Pursuant to applicable federal law and regulations, positions at STR require employees to obtain national security clearances and satisfy the requirements for compliance with export control and other applicable laws.

Free account
Stop reading job ads. Get the ones that fit.
One free account turns this page into a shortlist built around your stack, your level and your pay.
Match on every job. Stack, seniority, pay and location, scored against your profile.
2,065,048 open roles. Read straight off company career pages, refreshed every day.
Unlimited applications. Every one you send is tracked in one place, on-site or on a company board.
3 tailored CVs a month. Rewritten for the exact job you are applying to. Included free.
Create a free account Continue with Google
Free forever. No card. Under a minute.

Your match

How well do you fit this role?
Two answers are enough for a real match. No account needed.
Check my fit
Answers stay in this browser until you create an account.

Recommended for you based on this role

Industrial Engineering
Similar stack
Same company
In your city
Principal FTL Engineer 4 months ago
$190k – $240k per year · In office · 5+ years exp · Bachelor's Degree · San Jose
C++
AI/ML
Machine Learning
Apply
$200k – $240k per year · In office · 5+ years exp · Bachelor's Degree · San Jose
C++
AI/ML
Machine Learning
Apply
$120k – $210k per year · In office · 5+ years exp · Bachelor's Degree · San Jose
Python
C++
AI/ML
Machine Learning
DevOps
Linux
Apply
$170k – $220k per year · In office · 5+ years exp · Bachelor's Degree · San Jose
C++
AI/ML
Machine Learning
Apply
≈ $113k – $221k per year (Estimated) · In office · 5+ years exp · Bachelor's Degree · San Jose
Python
JavaScript
AI/ML
Claude
ChatGPT
Machine Learning
DevOps
Windows Server
Windows
Apply
In office · 5+ years exp · Malmö
JavaScript
TypeScript
SQL
C#
C#
.NET
Blazor
Frontend
Vue.js
Angular
React.js
DevOps
Azure DevOps
Azure
CI/CD
Git
Incident Management
Management
Agile
Scrum
Kanban
Apply
≈ $36k – $94k per year (Estimated) · Hybrid · Full-Time · 8+ years exp · Bachelor's Degree · Hyderabad
DevOps
gRPC
CI/CD
Kubernetes
Management
Agile
Apply
Software Developer 2 days ago
In office · Full-Time · Bachelor's Degree · Ljubljana
JavaScript
Java
TypeScript
SQL
C#
Node JS
Java
Maven
Quarkus
C#
.NET
Databases
PostgreSQL
Cassandra
DevOps
Rest API
Traefik
Azure
CI/CD
Jenkins
AWS
Docker
Nginx
GitLab
Linux
Cybersecurity
Keycloak
Management
Agile
Scrum
Apply
≈ $60k – $140k per year (Estimated) · In office · Full-Time · 5+ years exp · Bachelor's Degree · Singapore
Analytics
Tableau
Power BI
Looker
Management
Confluence
Jira
SharePoint
Agile
Apply
Hybrid · Full-Time · Bachelor's Degree · Bengaluru
Frontend
Lighthouse
Management
Agile
QA
BrowserStack
Apply
$206k – $284k per year · Remote (United States) · Top Secret · 10+ years exp · Bachelor's Degree
Python
Java
C++
Management
Agile
SpaceTech
SysML
Cameo Systems Modeler
MBSE
Apply
$206k – $284k per year · In office · TS/SCI · 8+ years exp · Bachelor's Degree · Woburn
Python
C++
MATLAB
C++
TensorFlow C++
AI/ML
MLFlow
Reinforcement Learning
TensorFlow
PyTorch
Ray
Machine Learning
Defense
Radar Signal Processing
Apply
$174k – $225k per year · In office · TS/SCI · 8+ years exp · PhD · Woburn
Python
C++
MATLAB
AI/ML
Machine Learning
Defense
AFSIM
Radar Signal Processing
Apply
$134k – $168k per year · In office · Top Secret · 5+ years exp · Bachelor's Degree · Woburn
Design
SolidWorks
SpaceTech
ANSYS
Defense
MIL-STD-810
Apply
$138k – $190k per year · Remote (United States) · TS/SCI · 5+ years exp · Bachelor's Degree
Python
Java
Management
Agile
SpaceTech
SysML
Cameo Systems Modeler
MBSE
Apply
See all jobs
This is one of many
2,065,048 more open roles from verified company boards, updated every day.