---
title: 'Lead Mission Engineer - Full Stack at STR'
canonical: 'https://feeny.ai/job/lead-mission-engineer-full-stack-str-arlington-5p51ja719r7b'
type: 'job'
last_seen: '2026-09-04'
---

# Lead Mission Engineer - Full Stack at STR

- **Company:** STR
- **Location:** Arlington, VA
- **Work type:** remote
- **Posted:** 2026-07-23
- **Last confirmed live:** 2026-09-04
- **Apply:** https://job-boards.greenhouse.io/systemstechnologyresearch/jobs/4699379006

## Job description

About the Team:

Information processing and sense-making systems are the lifeblood of national security efforts, facilitating an understanding of the global situation, strategic planning, and tactical execution. The reliability, accessibility, and sophistication of these systems can determine the outcomes of conflicts before they begin. STR’s Analytics and Command & Control (AC2) Division focuses on developing actionable, advanced technology solutions to provide asymmetric advantages within the information domain.

The Mission Applications (MA) Group within the AC2 Division specializes in ensuring the technology that STR creates produces outsized mission impact. Staff within the MA group have a deep understanding of missions and technology needs for national security with skills targeting transition of technology to operational use, including product management, UX Product implementation, software integration & mission engineering, platform engineering, DevOps, and program management. MA staff combine with other science and engineering staff from the various STR research and development groups to form dedicated product teams focused on accelerating the operational transition of cutting-edge software technologies.

The Role:

As a Mission Engineer (Full Stack) in the Mission Applications Group, you will develop and deploy software essential for a specific, real-world objective or "mission" in partnership with our customers. You have: 1) expertise in developing and deploying software solutions in complex and high-security environments, 2) deep domain knowledge in the complex missions executed across the Department of Defense, and 3) expertise in modern frameworks, building full stack applications, and integrating APIs for deployment in high-security environments.

You will work as a leader of software teams to design, develop, and maintain software systems deployed in operational use. You have experience managing customer relationships while simultaneously leading engineering teams to ensure the delivered product meets the highest standards of quality, reliability, and performance.

What you will do:

- Build Prototype Capabilities: Break down use cases and user-defined problems, build an MVP, and rapidly evolve a solution into a cohesive application
- Develop and Enhance Features: Create high-performance, visually appealing frontend solutions that handle complex use cases effectively. Ensure the product is fast, smooth, and intuitive to use, even under heavy load
- System Integration: Leading cross functional engineering teams to design, build, and deploy a cohesive system. Integrate independent capabilities into existing solutions
- Customer Collaboration: Working closely with end-users and customers, who are typically military or Government operators, to understand their requirements and translate them into software features. You are experienced in product discovery best practices
- Deployment and Field Testing: Traveling to integration sites to deploy, test, and triage software in secure operational environments.  On average, travel to customer sites should not exceed one week per month

Who You Are:

- Active Secret Security Clearance with the ability to obtain Top Secret level with SCI Eligibility
- BS in Computer Science or related technical field with at least 7 years of work experience. Equivalent experience will be considered
- Experience deploying software for DoD or IC missions
- A passion for crafting user-centric interfaces and a keen eye for design details
- Demonstrated strong knowledge of modern technologies such as React, TypeScript, and Python
- Knowledge of performance-focused tools and techniques for rendering large datasets and building responsive, smooth interfaces
- A demonstrated ability to adopt new languages, libraries, and technologies
- Organized, detail-oriented, and with an ability to work both independently and collaboratively
- Demonstrated experience as an effective communicator to both technical and non-technical audiences

Even Better:

- Advanced Degree in Computer Science, Information Technology, or related technical field
- Prior US Military Service with experience in joint planning, large force battle monitoring, and fluidity with large force debrief best practices
- Located in San Diego, CA, Denver, CO, Arlington, VA, or Boston, MA, or willing to relocate

Pay Information Full-Time Salary Range: $175,000 - $240,000

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, and Carlsbad, CA. 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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