Jobs in the United States

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Added 1 min ago
Software Engineer - Early Career
ASM
United States
Develop, test, and improve reliable software for semiconductor manufacturing equipment.
Added 5 mins ago
J
Software Engineer, Backend
NY
- $180,000 to $260,000 USD / year
Design, implement, test, debug, and operate backend services, REST APIs, and platform components that power Epiq AI Labs’ products.
Added 5 mins ago
J
Software Engineer, AI Agents
NY
- $180,000 to $260,000 USD / year
…durable state and memory across long-running jobs, MCP-based tool integration, and trace-level…
Added 9 mins ago
A
Mechanical Design Engineer (CATIA)
Actalent
Middle River, MD
- $48.07 to $67.31 USD / hour
…thrust reversers for major aircraft and aerospace programs. The engineer works closely with multidisciplinary teams, including design, analysis, manufacturing, and mass properties…
Added 9 mins ago
A
Senior Embedded Software Engineer
Actalent
Menomonee Falls, WI
- $105,000 to $130,000 USD / year
Job Title: Embedded Software EngineerJob DescriptionAs an Embedded Software Engineer, you will collaborate with engineers on New Product Development teams to design and implement technology…
Added 10 mins ago
Sentinel ICBM Launch Execution Engineeer
BAE Systems
Hill AFB, UT
Specifically, this LE engineer will be responsible for supporting the U.S. Air Force customer in the review and evaluation of the Sentinel ICBM prime contractor’s designs, documentation,…
Added 19 mins ago
F-16 Systems Engineer NGB A5 Liaison
GMRE
Hill AFB, UT
Systems Engineer will assist in translating user technical and mission requirements into systems-level requirements and acquisition documents which will be used to design, develop,…
Added 19 mins ago
IT Applications Engineer
Potawatomi Casino | Hotel
Milwaukee, WI
Use source control for all scripts, reports, integration code, software development; following OWASP 10 during development lifecycle and follow change management policy.
Added 23 mins ago
Systems Engineer 4
Ultra Electronics Advanced Tactical Systems, Inc.
United States
Writes detailed test cases and articulates results in chosen software development lifecycle management tool (e.g., Digital.ai Agility, JIRA etc.)
Added 23 mins ago
K
Full Stack Engineer
Kforce
Merrimack, NH
- $74 to $78 USD / hour
Kforce has a client in need of a Fullstack Engineer in Merrimack, NH.
Added 24 mins ago
Software Development Engineer
ESO
Remote, United States
…support reporting, planning, and day-to-day operations. As a Software Development Engineer III on this team, you’ll deliver features that make that work faster and more reliable for the…
Added 32 mins ago
A(
Systems Engineer - Sentinel
Auria (Boecore LLC)
Colorado Springs, CO
- $70,000 to $130,000 USD / year
As a System Engineer (SE) you will be assigned to an Agile Scrum Team supporting the Command & Launch (C&L) segment of the Sentinel program, and the Command and Control (C2) Software Team.…
Added 32 mins ago
AE
Future Anticipated Openings: Federal Space Cyber Operations Support
Apogee Engineering
Colorado Springs, CO
- $31,533 USD / year
Responsibilities: Support integration and sustainment of DCW toolsets, CI/CD for rule deployments, and automation of telemetry ingestion and test harnesses.
Added 33 mins ago
Senior AI Engineer
Cornell University
United States
The Senior AI Engineer serves as the technical lead for the AI Engineering team, providing expert‑level guidance, architectural leadership, and hands‑on development in support of Cornell’s…
Added 35 mins ago
UG
Architect - Remote
UnitedHealth Group
Fort Washington, PA
- $112,700 to $193,200 USD / year
…involved across many aspects of architecture, design, build, engineer and implement technical solutions and capabilities providing technical leadership. Responsible for communicating…
Added 37 mins ago
RF System Engineer, Amazon Leo
Amazon
Redmond, WA
…product release. We operate at the intersection of RF hardware, software automation, and large-scale system…
Added 37 mins ago
Sr. Manufacturing Automation Engineer, Amazon Leo
Amazon
Redmond, WA
As a Sr. Manufacturing Automation Engineer, you will lead the development of custom automation, production stations, engineering fixtures, and test systems for battery pack manufacturing.…
Added 37 mins ago
Hardware Development Engineer II, AWS Mainstream Compute
Amazon
Seattle, WA
To deliver your products you will work with an interdisciplinary team of component, firmware, test, qualification, and integration engineers, and lead our design and manufacturing partners…
Added 37 mins ago
Staff Software Engineer, Geo Automotive SDK
Google
Seattle, WA
Share Staff Software Engineer, Geo Automotive SDK
Added 37 mins ago
Senior Electrical Engineer, Data Center Engineering - Electrical Products and Services (DCE-EPS)
Amazon
Seattle, WA
You'll join a diverse team of software, hardware, and network engineers, supply chain specialists, security experts, operations managers, and other vital roles. You'll collaborate with…
Added 37 mins ago
PW
Lead Software Engineer - Validation Solutions, Automation & Analytics
Paccar Winch Inc.
Mount Vernon, WA
- $104,100 to $162,900 USD / year
Lead Software Engineer - Validation Solutions, Automation & Analytics Apply now »
Added 40 mins ago
Principal Mission Engineer - Full Stack (Secret Clearance Required)
STR
San Diego, CA
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…
Added 40 mins ago
Principal Mission Engineer - Full Stack (Secret Clearance Required)
STR
Arlington, VA
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…
Added 40 mins ago
Principal Mission Engineer - Full Stack (Secret Clearance Required)
STR
Remote, United States
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…
Added 41 mins ago
Electrical Engineer I (For SNC Summer 2026 Interns Only)
Sierra Nevada Corporation
Plano, TX
…Surveillance & Reconnaissance (C4ISR) capabilities encompass design, integration, test, certification, ground/flight training and complete logistics support. IAS tailors solutions to…

STR

Principal Mission Engineer - Full Stack (Secret Clearance Required)

Arlington, VA, United States

Pay Information Full-Time Salary Range: $240,000 - $290,000

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Job details

Pay: Pay Information Full-Time Salary Range: $240,000 - $290,000
Experience: BS in Computer Science or related technical field with at least 8 years of work experience
Posting language: English
Posted: Nov 6, 2026

Original job description

Principal Mission Engineer (Full Stack) (Secret Clearance Required)

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 Principal 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. We are looking for engineers who are high ownership and have a track record of delivering high impact work.

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. This role includes:

Build Prototype Capabilities: Break down use cases and user-defined problems, build an MVP, and rapidly evolve a solution into a cohesive application.
Rapidly Scale Applications: Continue accelerated development trajectory on existing applications by building new workflows, increasing scalability and making high impact improvements, and addressing additional customer pain points in the context of existing applications and workflows.
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.

This role will take advantage of STR’s flexible, hybrid environment – when the work does not require use of STR’s or the customer’s facilities, you are welcome to work remotely.

Who You Are:

Must be a U.S. citizen
Active US Security Clearance
BS in Computer Science or related technical field with at least 8 years of work experience
Experience deploying software for DoD or IC missions
High sense of ownership and a track record of delivering high impact work
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:

Active Security Clearance at the Top Secret level with SCI Eligibility
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

Pay Information Full-Time Salary Range: $240,000 - $290,000

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 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.

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