Senior Fullstack Software Engineer Jobs in Arlington, VA
Senior Fullstack Software Engineer jobs in Arlington are in strong demand, concentrated in Rosslyn, Ballston, and Crystal City across defense technology, federal contracting, and commercial software. Employers actively hiring include BetterUp, Pioneering Evolution, and Tria Federal. See the openings below and apply to the ones that match your experience.
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Full Stack Front-End Engineer
STR is seeking candidates ranging from experienced developers to technical leads; entry-level developers will not be considered for this role.
STR's Analytics and Command & Control (AC2) Division designs, develops and deploys novel technologies to solve challenging national security problems. Our team consists of passionate and motivated engineers and scientists with degrees in engineering, computer science, mathematics, physics, and data science. The Decisions Systems Group in the AC2 Division develops algorithms and tools that enable human planners to collaborate with AI to make the best decisions possible. The VizIX team within Decision Systems serves as a center of excellence for User Experience (UX) design, development, testing, and deployment for a wide range of defense and intelligence programs throughout STR.
The Role:
You will join a tight-knit team highly skilled in interactive UX and data visualization design, implementation, testing, and deployment. You will oversee a novel UI/UX application effort through stages of design, implementation, and demonstration. This role will be hybrid with around 25% of time required in either our Woburn, MA or Arlington, VA office. Specific responsibilities include:
- Develop efficient and high-performance components for data visualization and user interaction, ensuring a seamless experience even with large datasets.
- Optimize applications for speed and responsiveness across a variety of devices and browsers.
- Deliver intuitive user-centric and data-centric user interfaces for mission-focused first-of-its-kind engineering solutions
- Communicate with the project team, users, and clients to develop and document requirement
- Implement containerized solutions using Docker and Kubernetes to enhance application portability, scalability, and deployment efficiency.
- Assist in the authorship of software documentation such as user training guides
- Collaborate across numerous programs and divisions within the company
- Be adaptable and passionate about continuous learning.
Who You Are:
- Bachelor's degree in related field or equivalent experience
- 5+ years' experience with JavaScript, CSS, CSS extension languages (LESS, Sass), CSS preprocessor tools, HTML5 and its best practices.
- Demonstrated expertise with at least two of: React, Redux, Flask, Django, Node, Vue.
- Demonstrated expertise with at least one other back-end programming language (Python, Java, .Net, JavaScript) and willingness to learn more.
- Demonstrated expertise with Geolocation & Mapping such as Google Maps API, OpenStreetMap, or other mapping solutions.
- Proficiency with Git version control and
- Able to work independently and as part of a team.
- USCitizen with ability to obtain a security clearance.
Even Better:
- Experience with User Interactions and User Experience, or UI/UX research.
- Comfortable engaging with engineers and end-users to gather requirements
- Familiarity with emerging AI ecosystems for UI/UX design, development, and test
Pay Information
Full-Time Salary Range: $140,000.00 to $170,000.00
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 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.
Full Stack Front-End Engineer
STR is seeking candidates ranging from experienced developers to technical leads; entry-level developers will not be considered for this role.
STR's Analytics and Command & Control (AC2) Division designs, develops and deploys novel technologies to solve challenging national security problems. Our team consists of passionate and motivated engineers and scientists with degrees in engineering, computer science, mathematics, physics, and data science. The Decisions Systems Group in the AC2 Division develops algorithms and tools that enable human planners to collaborate with AI to make the best decisions possible. The VizIX team within Decision Systems serves as a center of excellence for User Experience (UX) design, development, testing, and deployment for a wide range of defense and intelligence programs throughout STR.
The Role:
You will join a tight-knit team highly skilled in interactive UX and data visualization design, implementation, testing, and deployment. You will oversee a novel UI/UX application effort through stages of design, implementation, and demonstration. This role will be hybrid with around 25% of time required in either our Woburn, MA or Arlington, VA office. Specific responsibilities include:
- Develop efficient and high-performance components for data visualization and user interaction, ensuring a seamless experience even with large datasets.
- Optimize applications for speed and responsiveness across a variety of devices and browsers.
- Deliver intuitive user-centric and data-centric user interfaces for mission-focused first-of-its-kind engineering solutions
- Communicate with the project team, users, and clients to develop and document requirement
- Implement containerized solutions using Docker and Kubernetes to enhance application portability, scalability, and deployment efficiency.
- Assist in the authorship of software documentation such as user training guides
- Collaborate across numerous programs and divisions within the company
- Be adaptable and passionate about continuous learning.
Who You Are:
- Bachelor's degree in related field or equivalent experience
- 5+ years' experience with JavaScript, CSS, CSS extension languages (LESS, Sass), CSS preprocessor tools, HTML5 and its best practices.
- Demonstrated expertise with at least two of: React, Redux, Flask, Django, Node, Vue.
- Demonstrated expertise with at least one other back-end programming language (Python, Java, .Net, JavaScript) and willingness to learn more.
- Demonstrated expertise with Geolocation & Mapping such as Google Maps API, OpenStreetMap, or other mapping solutions.
- Proficiency with Git version control and
- Able to work independently and as part of a team.
- USCitizen with ability to obtain a security clearance.
Even Better:
- Experience with User Interactions and User Experience, or UI/UX research.
- Comfortable engaging with engineers and end-users to gather requirements
- Familiarity with emerging AI ecosystems for UI/UX design, development, and test
Pay Information
Full-Time Salary Range: $140,000.00 to $170,000.00
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 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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Find JobsSenior Fullstack Software Engineer Job Market in Arlington
Who's Hiring
- BetterUp3
- Pioneering Evolution3
- Tria Federal2T
- Booz Allen Hamilton2
- General Dynamics Information Technology2
Top Industries Hiring
- Education2
- Technology & Software1
- Marketing & Advertising1
- Non-Profit & Social Services1
- Consulting & Professional Services1
Senior Fullstack Software Engineer Jobs in Arlington: Frequently Asked Questions
How do I get a senior fullstack software engineer job in Arlington?
The strongest hiring in Arlington comes from defense contractors, federal IT services firms, and SaaS companies clustered in Rosslyn, Ballston, and Pentagon City. Candidates with full-stack experience in React, Node.js, or Java who also hold or can obtain a security clearance stand out significantly here. Familiarity with government-adjacent systems, cloud platforms like AWS or Azure, and agile delivery in compliance-heavy environments gives applicants a real edge in this market.
Which companies hire senior fullstack software engineers in Arlington?
Employers hiring senior fullstack software engineers in Arlington right now include BetterUp, Pioneering Evolution, and Tria Federal, based on current listings on Migrate Mate as of July 2026. Arlington's employer base skews heavily toward federal contractors, defense technology firms, and mission-driven software companies serving government and commercial clients.
Are there remote senior fullstack software engineer jobs in Arlington?
Yes, remote and hybrid arrangements are common for senior fullstack software engineers, since the work is largely code-based and does not require a physical presence. About 56% of senior fullstack software engineer openings tied to Arlington are remote or hybrid as of July 2026, though roles touching classified systems or federal clients often require on-site work in the Rosslyn or Pentagon City corridors.
How can I get a senior fullstack software engineer job in Arlington with little or no experience?
The most realistic entry path in Arlington is through junior or associate software engineer roles at federal contractors and technology services firms, which often hire in volume to staff long-term government engagements. Entry-level positions at agencies like Booz Allen Hamilton, Leidos, or similar contractors in Ballston and Crystal City can provide structured mentorship and clearance sponsorship that builds toward a senior role faster than most commercial environments.
Which industries hire the most senior fullstack software engineers in Arlington?
The sectors hiring the most senior fullstack software engineers in Arlington are Education, Technology & Software, and Marketing & Advertising, based on current listings on Migrate Mate as of July 2026. Arlington's proximity to the Pentagon and federal agencies drives outsized demand from defense technology and government IT services companies that maintain large engineering teams in the area.
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