---
title: 'Simulation-based Systems Test Engineer at STR'
canonical: 'https://feeny.ai/job/simulation-based-systems-test-engineer-str-woburn-0kn95db70art'
type: 'job'
last_seen: '2026-10-16'
---

# Simulation-based Systems Test Engineer at STR

- **Company:** STR
- **Location:** Woburn, MA
- **Posted:** 2026-10-07
- **Last confirmed live:** 2026-10-16
- **Apply:** https://job-boards.greenhouse.io/systemstechnologyresearch/jobs/4719785006

## Job description

## About the Team

The Sensors Division develops advanced solutions in radar, space-based sensing, electronic warfare, and underwater acoustics. Within the Space Missions and Sensing (SMS) Sector, we focus on advancing space sensing, space control, and counter-sensing technologies for critical national security missions.

The Role:

In this position, you will design, implement, and operate integrated simulation testbeds for advanced space and defense systems. Your work will include analyzing integrated system performance, developing and executing test plans, and defining system evaluation criteria. You'll collaborate with customers to address key technical challenges and work closely with both research and software teams to integrate simulation and analysis tools.

What you will do:

- Design and apply cutting-edge models and simulation frameworks to support test and evaluation of algorithms, command & control systems, and deployed software solutions
- Collaborate with diverse teams and technical leadership to understand system level requirements and broad objectives; summarize progress, report on findings and provide assessments.
- Support business development initiatives and proposal writing efforts, playing a key role in shaping the proposed technology solutions

Who You Are:

- This position requires the ability to obtain a secret security clearance, for which U.S. citizenship is needed by U.S. Government
- BS with 2+ years' experience, MS, or equivalent experience in Electrical Engineering, Applied Mathematics, Physics, or related technical discipline
- Experience with space defense programs and modeling, sensor systems, platforms, and ground systems
- Experience in at least two of the following topics:
- RF/radar signal processing, optimization, waveform design, electronic warfare, machine learning, adaptive signal processing, AI/ML approaches to optimization, model & simulation, systems engineering, test engineering, radar modelling, optics modelling, orbital mechanics, space systems (propulsion, thermal, communications, GNC)
- Experience providing technical briefs to subcontractors, senior level executives, and customers
- Proficiency in one or more scientific or mathematical programming languages, such as MATLAB, Python, and C/C++
- Experienced researcher and team member who is excited to work with mission partners to leverage cutting-edge technology and research for immediate impact
- Excellent communicator and briefer, who is comfortable communicating with both technical and non-technical audiences
- Strong mathematical, troubleshooting, written, and verbal communication skills

Even Better:

- Active Secret or TS/SCI Clearance
- Experience with industry standard simulation tools such as AFSIM
- Demonstrated leadership of complex research, development, and engineering efforts
- Advanced degree in Electrical Engineering, Applied Mathematics, Physics, or a related technical discipline
- Ability to apply novel, innovative and interdisciplinary approaches to challenging engineering problems

Join us and be part of a team that's making an impact at the forefront of technology and innovation.

Pay Information Full-Time Salary Range: $110,000 - $139,000

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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