---
title: 'Principal Defense Systems Analyst at STR'
canonical: 'https://feeny.ai/job/principal-defense-systems-analyst-str-arlington-q6nwkps0q7wn'
type: 'job'
last_seen: '2026-09-11'
---

# Principal Defense Systems Analyst at STR

- **Company:** STR
- **Location:** Arlington, VA
- **Posted:** 2026-05-19
- **Last confirmed live:** 2026-09-11
- **Apply:** https://job-boards.greenhouse.io/systemstechnologyresearch/jobs/4682303006

## Job description

## About the Team

The Sensors Division at STR focuses on technology development for advanced sensor systems and platforms in support of national security.  At STR, Defense Systems Analysts study complex defense technologies and systems by building representative, physics-based models; analyzing data; developing metrics of performance; and evaluating these models against mission requirements.  In addition, the analyst will often integrate the algorithms and control systems that are critical to operations of modern defense systems.

The Systems Autonomy, Analysis, and Modeling (SAAM) Group within the Sensors Division uses modeling and simulation to create and analyze system architectures and designs and their mission impact. We focus on the capability and limitations of ground, air, and space sensing and counter-sensing platforms (both crewed and uncrewed) and the resource management of these assets in the service of the survivability and capability of US air and space assets (e.g., the F-35 Joint Simulation Environment) using the methods of operational and systems analysis. SAAM is developing software and hardware tools and datasets to support these analyses, including algorithms, processing chains, and scenarios to inform and deploy onto prototype demonstration systems as well as operational systems. Our main customer focus is on Air Force, Navy, and DARPA research programs.

The Role:

The SAAM Group is seeking a Principal Defense Systems Analyst to research, design, develop and implement a portfolio of capabilities to characterize the impact of advanced concepts and algorithms on the performance and survivability of operational systems in a variety of scenarios.  You will lead and advise fellow researchers, scientists, and engineers on multi-disciplinary teams spread across multiple STR campuses to understand customer objectives, craft strategic plans, lead proposal efforts, and develop innovative solutions to complex and challenging national security problems.  Your areas of specific focus will include innovating and developing advanced modeling & simulation and systems engineering capabilities.

A successful candidate will have significant expertise and skill in several of the following areas: systems engineering, radar systems, modeling & simulation, test & evaluation, hardware design, software architecture, resource management, signal processing, and/or communications.  This position requires skills in leading multi-disciplinary teams, managing complex system design, development, and test programs, developing technology roadmaps and marketing strategies, as well as deep technical proficiency in relevant technologies.  Strong interpersonal, communication, technical, management, mentorship, and peer-leadership skills are also required.

Interviews for this role will require an in-person or virtual presentation.

What you will do:

- Lead multi-disciplinary and multi-site teams to develop system studies and new capabilities
- Develop and implement sensor, platform, and threat models within simulation environments and in support of software and hardware prototypes
- Utilize and enhance simulation tools, incorporating real-world data, to conduct in-depth studies of system performance and effectiveness
- Design, develop, validate, and manage large-scale simulations, with a focus on sensing and counter-sensing technologies
- Serve as a subject matter expert on the capabilities of current and future US and threat weapon systems, sensors, and platforms
- Synthesize complex data into actionable insights, providing strategic assessments and evaluations to inform defense planning and decision-making
- Prepare and deliver comprehensive technical reports and presentations to government customers, articulating the implications of simulation findings on national security

Who you are:

- Active Security Clearance at the Top Secret (TS) level, for which U.S. citizenship is needed by the U.S government
- BS, MS or PhD in Electrical Engineering, Physics, Applied Mathematics, or related field
- 8-10+ years of practical experience in modeling & simulation, sensing modalities (e.g., RF and EO/IR), and systems engineering, including digital engineering
- In-depth knowledge of remote sensing & counter-sensing technologies including airborne/surface-based radar and electronic warfare, and EO/IR sensing systems
- Expertise in one or more scientific programming languages, such as C/C++, Python, or MATLAB
- Experience with AFSIM, the Joint Simulation Environment/NGTS, or similar large-scale simulation environments
- Proven ability to develop modeling and simulation tools and lead teams
- Expertise in platform dynamics, including aerodynamics and orbital dynamics
- Exceptional technical writing and communication skills, with experience in delivering high-stakes presentations to government and military stakeholders

Pay Information Full-Time Salary Range: $220,000 - $260,000

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](http://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 appassist@str.us 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.

## About STR

## Company Overview
- **One-liner**: STR (Systems & Technology Research) develops and applies advanced technology to solve emerging national security challenges for the U.S. Department of Defense and intelligence community.
- **Entity Type**: Private (employee-owned)
- **Headquarters**: Woburn, Massachusetts, United States
- **Founded**: 2010
- **Founders**: Not publicly available

## Core Business
- **Primary industry/industries**: National security technology, defense, cybersecurity, sensing, analytics, systems engineering
- **Target customers**: U.S. Department of Defense, intelligence community, government agencies (B2G)
- **Mission or purpose statement**: “Making the world a safer place” by delivering high-impact technology solutions to the nation’s hardest problems.

## Products & Services
- **Cyber**: Applies reverse engineering, vulnerability assessment, formal methods, and AI/ML to solve critical cybersecurity and operational problems for the DoD.
- **Sensors**: Develops hardware and algorithm prototypes for radar, underwater acoustics, electronic warfare, and advanced RF/EOIR sensing concepts.
- **Analytics & C2**: Transforms information into advantage through command & control, autonomous systems, machine learning, graph analytics, and data visualization.
- **Systems Development**: Delivers resilient, high-impact capabilities at scale using model-based systems engineering, DevSecOps, and mission-focused integration.

## Market Standing
- **Valuation/Market Cap**: Not disclosed (private company)
- **Key Metric**: Annual Revenue $100M–$500M (LinkedIn estimate)
- **Notable Investors/Partners**: Employee-owned; primary customer is the U.S. Department of Defense. Key talent sources include Leidos, L3Harris, BAE Systems, MITRE, RTX, Draper, and MIT Lincoln Laboratory.
- **Growth Signals**: Headcount grew 15% YoY (644 employees); active job postings increased 155.8% year-over-year (133 current openings); operates 7 U.S. offices.

## Competitive Advantages
- **Employee-owned structure** aligns incentives with long-term mission impact rather than short-term returns.
- **Multi-disciplinary expertise** spanning cyber, sensors, analytics, and systems engineering enables integrated solutions.
- **“The STR Triangle”** – combines world‑renowned researchers, growing talent, and skilled engineers to rapidly mature ideas into fielded capabilities.
- **Meeting‑free Fridays** and flexible schedules support deep technical work and work‑life balance.

## Strategic Focus
- Continue to solve emerging national security challenges by investing in AI/ML, autonomous systems, cyber resilience, and advanced sensing.
- Scale delivery through model‑based systems engineering and DevSecOps practices.
- Attract and retain top technical talent by fostering a culture of purpose, diversity, and professional growth.

## Why Work Here
- **Culture**: “Choose‑your‑own‑adventure” career model – employees can pursue research, product development, engineering, or management paths. Emphasis on unconventional thinking, diverse perspectives, and real impact.
- **Remote/Hybrid**: Some roles are remote (e.g., Lead Mission Engineer Full Stack); most positions are on‑site at one of seven U.S. locations (Woburn MA, Arlington VA, Dayton OH, Carlsbad CA, Palm Bay FL, San Diego CA, Melbourne FL).
- **Notable perks**: Great health/dental/vision coverage, generous 401k matching, tuition reimbursement, results‑based bonuses, active interest groups, social events, snacks & coffee. Interns focus on real‑world problems, not busy work.
- **Engineering culture**: Strong mentorship, collaboration with national security experts, and opportunities to work on cutting‑edge technology from research through deployment.

## Sources
1. [str.us](https://str.us/)
2. [str.us/careers](https://str.us/careers/)
3. [str.us/life-at-str](https://str.us/life-at-str/)
4. [job-boards.greenhouse.io/systemstechnologyresearch](http://job-boards.greenhouse.io/systemstechnologyresearch)
5. [linkedin.com/company/str-us](https://www.linkedin.com/company/str-us)

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