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517 senior software testing engineer jobs at 227 companies in Leesburg, VA

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Senior Software Automation Testing Engineer
Ashburn, Virginia, United States
$98k-$154k/yr HybridFull Time
Unissant
Unissant: Delivers data analytics and cybersecurity services to government agencies.
5+ YOE5+ years software testing/automation experience, Bachelor's in Computer Science or related, Python 3.8+, FastAPI/Django/Flask, pytest/unittest, Locust, AWS, SQL, GitLab/Harness/Jenkins, ability to obtain Public Trust.
Python, FastAPI, Django, Flask, JSON, XML, SQL, Unix, pytest, unittest, Locust, GitLab, Harness, Jenkins, Oracle, PostgreSQL, AWS
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1mo
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Software Engineer II (Testing)
Columbia or Annapolis Junction
$190k-$205k/yr OnsiteFull Time
ALEX - Alternative Experts
ALEX - Alternative Experts: Provides engineering, data analytics, and logistics services to government.
14+ YOEActive TS/SCI with FSP required; 14 years software engineering experience (6 in testing); test automation in Python; experience with Linux/Unix, C/C++/Java, scripting, integration and performance testing.
Python, Perl, Bash, C, C++, Java, JIRA, Git, Linux, Unix
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1w
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Software Engineer 3 - C++/Testing
Annapolis Junction, Maryland, United States
$130k-$270k/yr OnsiteFull Time
Captivation Software
Captivation Software: Provides specialized software engineering for the intelligence and defense communities.
15+ YOERequires 15 years of software engineering experience, a computer science bachelor's degree or equivalent experience, Top Secret/SCI clearance with favorable polygraph, C++, Python, Shell, CI/CD, and software testing experience.
C++, Python, Shell
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4w
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Senior Software Engineer
Hanover, Maryland, United States
$90k-$140k/yr OnsiteFull Time
Systek
Systek: Provides systems engineering and technical assistance for defense agencies.
10+ YOE10 years of DoD software engineering experience (substitutions allowed), active DoD Top Secret/SCI clearance required, Master's preferred in CS/IS/Software Engineering, strong software design, development, and testing skills.
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4w
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Senior Software Engineer
Washington, District of Columbia, United States
$68-$113/hr OnsiteFull Time
PEMCCO
PEMCCO: Provides IT and engineering services for government transportation systems.
10+ YOEMaster's degree in a technical discipline, 10+ years software engineering experience, advanced software architecture knowledge, lifecycle and testing experience, ability to obtain security clearance.
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Senior Software Engineer
Summit Point, West Virginia, United States
OnsiteFull Time
Parsons
ParsonsNYSE: PSN: Provides engineering and technology services for infrastructure and defense.
7+ YOEBachelor’s degree in engineering, 7 years of software engineering experience, active Secret clearance, biometrics expertise, Android and Agile/DevOps/DevSecOps experience, and knowledge of secure software, testing, and cybersecurity.
Android, Agile, DevOps, DevSecOps, AWS, BAT-A, NXGBCC, NRTIO
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3mo
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Senior Software Engineer
Annapolis Junction, Maryland, United States
OnsiteFull Time
Entegra Systems
Entegra Systems: Provides engineering and intelligence analysis for government missions.
11+ YOE11+ years as Software Engineer; Linux; Java with Spring, Maven, Git, Subversion; networks/protocols; test planning; strong communication.
Java, Eclipse, Spring Framework, Maven, Git, Subversion, JIRA, Jenkins, JUnit, MongoDB, Linux
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Senior Software Engineer
Menlo Park or New York City or Bellevue or Washington or Denver or Westlake or Chicago or Lake Mary or Clearwater or Gainesville
HybridFull Time
Robinhood
RobinhoodNASDAQ: HOOD: Provides a commission-free platform for investing and financial services.
5+ YOERequires 5+ years of software engineering experience, strong Python or Go coding skills, distributed systems expertise, and experience with load testing, fault injection, chaos engineering, or developer infrastructure.
Python, Go, Kubernetes, CI/CD
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2mo
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Senior Software Engineer
Arlington or Mount Laurel or San Diego or Fall River
$135k-$273k/yr HybridFull Time
Innovative Defense Technologies
Innovative Defense Technologies: Develops automated software and systems to rapidly deliver mission-critical capabilities to U.S. government customers.
7+ YOEBachelor's degree or equivalent, 7+ years software engineering experience, able to obtain/maintain Secret U.S. security clearance, experience leading/mentoring, expertise in SDLC, OOP, distributed systems, secure coding, testing, and integration.
SDLC, Service-Oriented Architecture (SOA), AI, Generative AI
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Senior Software Developer
McLean or Tysons
OnsiteFull Time
M1 Technology
M1 Technology: Developing mission-critical technology for the U.S. intelligence community.
10+ YOEBachelor's degree in computer science, information systems, or computer engineering and 10 years of software development experience with AWS, Linux, Java, PHP, web technologies, IAM, security, testing, and debugging.
Linux, Amazon Web Services (AWS), Amazon S3, Amazon EC2, Apache Webserver, Apache Tomcat, Java, PHP, HTML, CSS, MySQL, JavaScript, OAuth, RBAC, VS Code, Bash, Microsoft SharePoint, Maven, Gradle, AWS Secrets Manager
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2w
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Software Developer, Senior
Herndon or Virginia or United States
$133k-$226k/yr OnsiteFull Time
BAE Systems
BAE SystemsLondon Stock Exchange: BA: Provides advanced defense, aerospace, and security technology solutions.
6+ YOERequires 6+ years of software development experience, a related technical bachelor's degree or equivalent, object-oriented programming, enterprise applications, databases, testing, debugging, and software lifecycle experience.
C#, .NET, Java, Kotlin, C++, PowerShell, Microsoft Windows, IIS, Jenkins, AWS, Microsoft Azure, GitHub, Jira, Confluence
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1mo
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Software Engineer, Senior
Springfield, Virginia, United States
$87k-$198k/yr OnsiteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Provides technology and management consulting services to diverse organizations.
10+ YOE10+ years software development experience using Agile methods in Java or JavaScript; experience with full‑stack development, automated testing, and cloud deployment; Top Secret clearance required.
Java, JavaScript, Red Hat, Windows Server, Oracle, JMeter, Jenkins, Swagger, Nexus, Apigee, GitHub, GitLab, Bash, Curl, XML, JSON, SQL, Amazon Web Services (AWS)
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1mo
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Senior Software Engineer
Rockville or Tysons
$112k-$203k/yr HybridFull Time
FINRA
FINRA: Regulates brokerage firms and exchange markets in the United States.
5+ YOEBachelor's in CS or related (or equivalent experience) with 5+ years experience, system design, OOP, cloud, data storage, performance tuning, DevOps/CI/CD, test automation, and software security.
DevOps, CI/CD
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1mo
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Senior Software Engineer
Tysons, Virginia, United States
$113k-$148k/yr HybridFull Time
Alarm.com
Alarm.comNasdaq: ALRM: Provides cloud-based smart home security and automation solutions.
6+ YOEBachelor's in CS or equivalent experience, 6+ years professional software development, strong frontend and backend skills, OOP/SOLID, API design, database fundamentals, testing, debugging, and mentoring experience.
C# .NET, SQL Server, Kafka, Ember.js, React, Node.js, Python, Kubernetes, Azure, Redis, iOS, Android, Git, CI/CD, JSON, YAML, Docker, GraphQL, REST
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3w
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Senior Software Engineer
Washington, District of Columbia, United States
$120k-$199k/yr OnsiteFull Time
The Washington Post
The Washington Post: Provides daily newspaper publishing and digital news reporting services.
8+ YOE8+ years technical experience with 6+ in software development. Strong JS/TS, React, Node.js, API design, testing, observability, and ability to lead features from design through delivery.
Iterable, Arc, Arc XP, JavaScript, TypeScript, React, REST, JSON, Node.js, Handlebars, Amazon Web Services, Lambda, S3, CloudWatch, EventBridge, Step Functions, API Gateway, NestJS, Spring Boot, Kotlin, PostgreSQL, MongoDB, Datadog, Splunk, GitHub Copilot, Claude, Cursor, Kiro
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1w
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Senior Software Engineer
Silver Spring or Vienna
$98k-$193k/yr HybridFull Time
ActioNet
ActioNet: Provides IT modernization and cybersecurity services for government agencies.
Software development experience across Windows, Linux, and Mac; proficiency in C#, .NET, SQL, Entity Framework, Git, and jQuery; testing, documentation, and Scrum/Agile experience; Public Trust clearance required.
C#, .NET Core, .NET Framework, SQL Server, Azure SQL, Entity Framework, Git, jQuery, Telerik, Windows, Linux, Mac, Scrum, Agile
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Senior Software Engineer
McLean, Virginia, United States
$100k-$185k/yr OnsiteFull Time
Steampunk
Steampunk: Federal digital transformation and consulting services provider.
5+ YOEBachelor's degree, 5+ years developing Java and React software, cloud-native applications, REST APIs, distributed services, CI/CD, Docker, and automated testing; must obtain Public Trust clearance.
Java, React, Jenkins, GitHub Actions, Docker, RESTful APIs, CI/CD, Agile, DevSecOps
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2mo
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Senior Software Engineer - Product
Yonkers or Washington or Colchester or Arizona or California or Connecticut or Illinois or Maryland or Massachusetts or Michigan or New Hampshire or New Jersey or New York or Texas or Vermont or Virginia or District of Columbia
$115k-$160k/yr RemoteFull Time
Consumer Reports
Consumer Reports: Tests products and publishes ratings for consumer advocacy.
5+ YOE5+ years software engineering experience; proficiency with React, React Native, Python (FastAPI); experience building multi-platform apps, CI/CD, automated testing, observability; strong communication; bachelor’s degree preferred.
React, React Native, Python, FastAPI, AWS, Azure, Google Cloud Platform, CI/CD
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2mo
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Senior Software Engineer
San Francisco or Miami or Atlanta or Salt Lake City or Phoenix or Washington D.C. or Los Angeles or Seattle or Chicago or Boston or Austin or New York City
$153k-$205k/yr RemoteFull Time
Circle
CircleNYSE: CRCL: Digital currency issuer and blockchain financial infrastructure provider.
6+ YOE6+ years professional software development with Java and Go; bachelor’s in CS or equivalent; led small technical teams; experience with payment systems, RESTful APIs, cloud services, and SQL; strong system design, testing, and communication skills.
Java, Go, AWS, Google Cloud, Microsoft Azure, SQL, NoSQL, RESTful API
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2mo
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Senior Software Engineer — Backend / Rules
Fairfax or Knoxville or Lebanon or Belton or Lafayette
$90k-$223k/yr HybridFull Time
CGI
CGINYSE: GIB: Provides information technology and business consulting services.
7+ YOEBachelor's degree in CS/Engineering,7+ years software engineering,deterministic backend and rules-engine experience,strong automated-testing discipline,US citizenship and ability to obtain suitability/clearance for AWS GovCloud.
AWS GovCloud
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