Python Test Software Developer Jobs in Linton Hall, VA, US

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Software Engineer - Python

Annapolis Junction, Maryland, United States

OnsiteFull Time

Interclypse: Provides software engineering and cybersecurity solutions for government agencies.

Develop Python/FastAPI middleware; build pipelines; implement REST API; ensure testing; participate in Agile sprints; documentation.

Python, FastAPI, REST API, Git, Agile, DevSecOps, Axway, Windows NAS, SQL, UAT

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Software Test Engineer

Germantown, Maryland, United States

$56k-$74k/yr HybridFull Time

WabtecNYSE: WAB: Manufacturer of equipment and digital solutions for rail transportation.

Bachelor’s degree in Electrical Engineering, Computer Science, Computer Engineering, Software Engineering; embedded systems knowledge; strong communication; entry-level with internship experience preferred.

Python, C, C++, Windows, Linux, IBM ELM, test automation tools

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Software Test Engineer

Annapolis Junction, Maryland, United States

$159k-$204k/yr OnsiteFull Time

Intelliforce: Provides engineering and technical solutions for the intelligence community.

5+ YOETop Secret clearance with Full Scope Polygraph; US citizenship; Technical Bachelor’s degree with 5 years’ relevant experience, or High School diploma with 9 years’ relevant experience; strong testing background in manual and automated QA.

Behave, SoapUI, Selenium, JUnit, JRunner, REST, JSON, XML, Groovy, Perl, Python, Ruby, Cron, Java, LDAP, PKI, Git, SVN, CVS, SQL

1mo

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1mo

Software Development Engineer in Test (SDET)

Arlington, Virginia, United States

OnsiteFull Time

Zetier: Cybersecurity engineering for defense and intelligence missions.

5+ YOE5+ years in software development or test; strong Python/C/C++/Rust; automated test frameworks; embedded/Linux; CI/CD; HW/SW debugging; documentation; strong communication; active U.S. security clearance.

Python, C/C++, Rust, pytest, Robot, Docker, Kubernetes, QEMU, Wireshark, Scapy, CI/CD, Firmware testing, Linux

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Cyber Software Test Engineer

Chantilly, Virginia, United States

OnsiteFull Time

SAICNYSE: SAIC: Provides engineering, IT, and mission support services to government.

5+ YOEActive Secret security clearance or higher; Bachelor's degree with 5-8+ years, Master's with 6 years, PhD with 4 years, or 12 years of experience in lieu of a degree; experience in software/hardware testing; strong test planning and communication skills.

Python, JavaScript, Azure DevOps, Jira, TestComplete, UNIX command line

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Test Engineer

Annapolis Junction, Maryland, United States

$87k-$198k/yr OnsiteFull Time

Booz Allen HamiltonNYSE: BAH: Consulting and technology services for government and commercial clients

1+ YOE1+ year automated testing, Python development, CI/CD, test case design, and experience with lab/DevOps environments.

Python, PyTest, unittest, nose2, doctest, Robot, tox, hypothesis, GIT, Splunk, Jenkins

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Mission Systems Software Test Engineer II

Reston, Virginia, United States

OnsiteFull Time

Blue Origin: Develops reusable rockets and systems for human spaceflight.

BS in engineering or physics; software testing experience; space systems knowledge; programming in Python/Golang/Rust/C++ ; cloud experience; strong communication.

AWS, Azure, Confluence, JIRA, Git, Python, Golang, Rust, C++

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Python Engineer, Agentic AI

Washington or Philadelphia

$121k-$181k/yr HybridFull Time

ComcastNASDAQ: CMCSA: Provides global telecommunications, media content, and entertainment services.

2+ YOEProficient in Python with backend focus, testing, and Agile collaboration; experience with AI agent workflows and RESTful services.

Python, Git, CI/CD, pytest, REST APIs, FastAPI, Docker, Asyncio

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Staff Cyber Software Test Engineer

Chantilly, Virginia, United States

$161k-$241k/yr OnsiteFull Time

Northrop GrummanNYSE: NOC: Develops and manufactures advanced aerospace, defense, and space systems.

12+ YOEActive Secret clearance required; BS with 12+ yrs, MS with 10 yrs, or PhD with 8 yrs; experience in software/hardware testing; strong analysis and communication skills.

Python, JavaScript, Jira, Azure DevOps, TestComplete, UNIX, Android, Windows, Linux

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Principal Software Engineer for Integration & Test

Arlington or Dayton or Remote or Woburn

$206k-$284k/yr HybridFull Time

Systems & Technology Research: Develops advanced technology for national security and defense applications.

5+ YOELead real-time software development for RF sensor systems; open architecture, C/C++, MATLAB/Python prototypes, travel ~20%, security clearance required.

C++, Python, MATLAB, CUDA, OpenCL, Linux, Embedded systems, CI/CD, Containerization

1mo

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1mo

Test Engineer

Tysons, Virginia, United States

$82k-$153k/yr OnsiteFull Time

SWIFT: Provides secure messaging services for global financial transactions.

3+ YOE3-5 years as Test/QA Engineer; Bachelor's in CS/SE; automation testing; Selenium; Java/Python; Linux; SQL/NoSQL; API testing; Agile.

Selenium, Java, Python, Linux, SQL, NoSQL, Postman, JMeter, LoadRunner

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Software Engineer

Annapolis Junction, Maryland, United States

OnsiteFull Time

SilverEdge Government Solutions: Provides cybersecurity and software solutions for national security missions.

Experience designing, developing, and testing software; Python/C/C++; Linux; APIs/IPC; Git; debugging/integration; TS/SCI clearance.

Python, C/C++, Linux, Sockets, ZMQ, NATS, Git, Docker

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Software Test Engineer Level 2

Annapolis Junction, Maryland, United States

OnsiteFull Time

Jovian Concepts: Provides technical services and engineering to the intelligence community.

14+ YOEActive TS/SCI with poly; 14+ years SWE experience; BS in Computer Science or related; 4 years' substitute experience; strong test, automation, Linux, and systems integration knowledge.

Linux, Python, CI/CD, JIRA, Git, Docker, ESB, CORBA, JBuilder, Eclipse, NOSQL, RabbitMQ, MongoDB, Google Protocol Buffers, gRPC, NoSQL

1mo

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1mo

Test Engineer / Cyber Test & Automation Engineer

Chantilly, Virginia, United States

OnsiteFull Time

REDLattice: Provides advanced cybersecurity software and vulnerability research services.

Bachelor's in CS/Engineering or related field; experience in test engineering, automation, or system validation; proficiency in Python/C/C++, test automation tools; Agile/Scrum; SDLC; Linux/Unix; TS/SCI clearance or eligibility.

Python, C/C++, Selenium, Git, CI/CD, Linux

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Autonomy Test and Evaluation Software Engineer

Laurel, Maryland, United States

$100k-$245k/yr OnsiteFull Time

Johns Hopkins University Applied Physics Laboratory: Conducts research and engineering for national security and space.

5+ YOEBS in software engineering/CS or related field; 5+ years software development; full lifecycle; autonomous systems/robotics/simulation experience; V&V/M&S tools; strong teamwork and communication; eligible for interim Secret clearance.

Python, C++, ROS, Gazebo, Unity, Machine Learning, Data Analysis

2mo

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2mo

Associate Electrical Software Test Engineer

Lanham, Maryland, United States

OnsiteFull Time

AST SpaceMobileNASDAQ: ASTS: Provides global cellular broadband coverage from space to smartphones.

1+ YOEBachelor's in engineering; 1-3 years in electrical/software testing; C/C++, Python; testing tools; Git; Linux/Windows; good communication.

C/C++, Python, Git, MATLAB, Simulink, Speedgoat, dSPACE, Oscilloscopes, Logic analyzers, Multimeters, DC power supplies, Linux, Windows

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Software Engineer 2 (Test Engineer)

Annapolis Junction, Maryland, United States

OnsiteFull Time

RealmOne: Provides cybersecurity and intelligence services for national security missions.

5+ YOE5+ years software engineering; 2 years in SIGINT/IA/IT; BS in computer engineering or computer science (4 years experience may substitute); active security clearance with polygraph.

REST, JSON, XML, Groovy, Perl, Python, Ruby, Java, Git, SVN, CVS, SQL, Selenium, SoapUI, JUnit, JRunner

1mo

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1mo

Software Engineer Integration & Test

Herndon or King of Prussia or Littleton or Sunnyvale

$77k-$135k/yr OnsiteFull Time

Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.

Active TS/SCI clearance; strong programming/scripting skills; experience with CI/CD and cloud; excellent communication and detail orientation.

Bash, Python, GitLab, Atlassian tools, CI/CD, AWS

1mo

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1mo

Embedded Software Developer

King George, Virginia, United States

$62k-$141k/yr OnsiteFull Time

Booz Allen HamiltonNYSE: BAH: Provides technology and management consulting services to diverse organizations.

2+ YOE2+ years in software development with embedded systems; C/C++ and Python; low-level development; hardware and software integration; ability to work on-site in labs and test ranges; secret clearance; bachelor’s degree.

C, C++, Python, Docker

1mo

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1mo

Senior Software Engineer

Waltham or Lexington or North Bethesda

$119k-$155k/yr HybridFull Time

XometryNASDAQ: XMTR: Operates an AI-powered marketplace for custom manufacturing and prototyping.

6+ YOE6+ years in software development; full-stack experience; Python backend; React/Typescript; AWS; SQL and MongoDB; Docker/Kubernetes; strong debugging and testing.

Python, React, Typescript, HTML, CSS, AWS, SQL, MongoDB, Docker, Kubernetes

1mo

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1mo

Software Engineer, Senior

McLean, Virginia, United States

$130k-$196k/yr OnsiteFull Time

Freddie MacOTCQB: FMCC: Purchases and securitizes home mortgages for the secondary market.

5+ YOESenior Software Engineer with 5-7 years in production software, Python/Java, data engineering, AWS, Spark, Snowflake, and ETL pipelines. Strong design and testing skills.

AWS, AWS EMR, Snowflake, Apache Spark, Java, Python, ETL/ELT

2mo

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2mo

ME00533-Security Verification Test (SVT) Software Engineer

Annapolis Junction, Maryland, United States

$160k-$235k/yr OnsiteFull Time

Momentum Engineering: Provides engineering and technical services for national security missions.

Active Top Secret/SCI with NSA Full Scope Polygraph; strong Java experience; multi-language skills (Java/JEE, Python, C/C++, SQL, scripting); web services and UI exposure; cryptographic tech knowledge; Windows/Linux proficiency; strong communication and independent work capability.

Java, Python, C/C++, SQL, SOAP, WSDL, PERL, PowerShell, VBS, Eclipse, Postgres, Oracle, Jenkins, JSON, XML, XSLT, Cryptography

1mo

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1mo

Software Developer – Junior (Team 01)

Washington, District of Columbia, United States

$100k-$115k/yr OnsiteFull Time

AmentumNYSE: AMTM: Provides engineering, technology, and mission support to government agencies.

1+ YOETop-Secret clearance with SCI eligibility; Bachelor's degree or equivalent experience; 1+ year backend software development experience; knowledge of Java, JavaScript, Python, SQL; familiarity with Java Spring, Node.js, cloud platforms; Agile experience; ability to develop, test, and debug software.

Java, JavaScript, Python, SQL, Git, Jira, Jenkins, Terraform, AWS, Azure

1mo

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1mo

Software Development Engineer (US Federal)

McLean, Virginia, United States

$137k-$205k/yr HybridFull Time

WorkdayNASDAQ: WDAY: Provides cloud-based software for financial and human capital management.

8+ YOE8+ years software development experience; Python, Go, Ruby; Bachelor's in CS/Engineering or equivalent; API development; testing; OO design; mentorship; technical writing.

Python, Go, Ruby, APIs

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Software Engineer (mobile)

Chantilly or McLean

HybridFull Time

M1 Technology: Developing mission-critical technology for the U.S. intelligence community.

Experience with Agile; development, maintenance, and testing of applications; enterprise SecDevOps tools (GitHub, Jenkins); independent testing throughout lifecycle; maintenance of existing infrastructure; development in Ruby, Java, JavaScript, TypeScript, HTML, C/Objective C, R, Python; ensure unit/integration/UAT testing and system changes; mobil...

GitHub, Jenkins, Ruby, Java, JavaScript, TypeScript, HTML, C, Objective C, R, Python, XCode, Swift, SwiftUI

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Automated Test Engineer

Annapolis Junction, Maryland, United States

$134k-$241k/yr OnsiteFull Time

ParsonsNYSE: PSN: Provides engineering and technology services for infrastructure and defense.

7+ YOESeven or more years in automated testing; BS in systems engineering, CS, cybersecurity, IS or related; cloud AWS in classified env; TS/SCI with poly required; Python scripting; experience with SVN/GIT and JIRA; strong documentation and agile experience.

Python, SVN, GIT, JIRA, Cloud (AWS)

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Aerospace Flight Software Engineer (cFS)

Greenbelt, Maryland, United States

OnsiteFull Time

Relative Dynamics: Develops engineering solutions and communication technologies for the aerospace industry.

15+ YOEDevelop, test, and integrate flight software; write cFS apps; work with C, Python, Ruby; 15+ years experience; BS in a related field.

C, Python, Ruby, COSMOS

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CNO Software Engineer

Annapolis Junction, Maryland, United States

OnsiteFull Time

Set of X: Provides specialized engineering services for U.S. national security missions.

Proficient in C/C++, Python, and Assembly; OS internals; network programming; debugging; testing frameworks; team collaboration; willingness to lead and mentor.

C, C++, Python, Assembly, Windows, Linux, Android, iOS, Embedded, Ghidra, IDA Pro, Binary Ninja, Radare2, Git, Svn, GoogleTest, CMock, Catch2, pytest, WinDBG, gdb, lldb, adb, OllyDbg, MsBuild, CMake, make, ninja, wheel, tox, Valgrind, clang-tidy, pylint, black, Docker, Ansible, CI/CD, Atlassian, GitLab, CircleCI, Jenkins

1mo

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1mo

Senior Software Developer (Hybrid)

Annapolis Junction, Maryland, United States

HybridFull Time

Nightwing: Provides advanced cyber and intelligence solutions for national security.

9+ YOEProficiency in OOP with Python or Java (~9 years); at least one language required, with experience in the other; reverse engineering or LLM app development skills preferred; testing and RPC familiarity a plus.

Python, Java, IDA, Ghidra, Langchain, LangGraph, LangSmith, vector databases, gRPC, JUnit, Pytest, ARM, PPC

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Principal Cyber Software Test Engineer

Chantilly, Virginia, United States

OnsiteFull Time

VTG: Provides force modernization and digital transformation for defense agencies.

5+ YOEActive Top Secret/SCI with Poly; 5+ years' experience; bachelor's with 5y, master's with 3y, PhD with 1y, or 9y experience in lieu of a degree; strong software/hardware testing; clear communication.

Python, JavaScript, Test Automation, SmartBear TestComplete, Azure DevOps, Jira, UNIX, Linux, Windows, Virtual Machines

1mo

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1mo

Software Developer (Automation & Distributed Integration Systems)

Ashburn, Virginia, United States

$115k-$117k/yr HybridFull Time

Dobbs Defense Solutions: Providing IT and cybersecurity solutions for government missions.

5+ YOE5+ years software testing and test automation; strong C#/.NET Core; experience with backend services, APIs, distributed systems; CI/CD; test frameworks.

C#, NET Core, PowerShell, Python, HTTP/REST, TCP/IP, Sockets, xUnit, NUnit, MSTest, Git, CI/CD, Postman, Newman, RestAssured, Docker

1mo

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1mo

Software Engineer (entry level)

Annapolis Junction, Maryland, United States

OnsiteFull Time

Root Source: Providing specialized software and systems engineering for government agencies.

Bachelor's degree in Computer Science or equivalent experience; US Citizenship; TS/SCI with Poly; experience with JavaScript, Node.js, Java, Python, Git, testing.

JavaScript, Node.js, Java, Python, Git, Jest, IDE, Spring Boot, Django, Virtualization, Streaming frameworks, Testing

1mo

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1mo

Security Software Engineer, Emerging On-prem AI infrastructure

Reston, Virginia, United States

$147k-$211k/yr OnsiteFull Time

GoogleNASDAQ: GOOGL: Provides internet search services and cloud computing technology solutions.

2+ YOEBachelor’s degree or equivalent; 2+ yrs in software development (C/C++/Python); 2+ yrs in large-scale infra/distributed systems; 2+ yrs testing/launching software; TS/SCI clearance.

C++, C, Python, Security, Operating Systems, Networking

1mo

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1mo

Senior Software Automation Testing Engineer

Ashburn, Virginia, United States

$85k-$100k/yr HybridFull Time

Vastly AI: Provider of custom AI, machine learning, and IT solutions.

5+ YOE5+ years in software testing; strong Python 3.8+; web frameworks (FastAPI, Django, Flask); REST API testing; AWS; automation; SQL; Git/Jenkins/Harness; Locust.

Python, FastAPI, Django, Flask, pytest, unittest, Locust, Gitlab, Harness, Jenkins, Oracle, Postgres, SQL, AWS

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Automation Test Engineer (Active TS/SCI Required)

Chantilly, Virginia, United States

OnsiteFull Time

MissionOvo: Provides technology and engineering services for national security missions.

5+ YOEActive TS/SCI clearance, BS in CS/Engineering, 5+ years test automation, frameworks Selenium/Cypress/Playwright/TestNG/JUnit, Python/Java/JS/C#, Git, API testing, Agile, embedded/hardware, cloud (AWS/Azure/GCP), performance testing, ISTQB a plus.

Selenium, Cypress, Playwright, TestNG, JUnit, Python, Java, JavaScript, C#, Git, Postman, REST Assured, Jenkins, GitLab CI, Azure DevOps, JMeter, LoadRunner

1mo

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1mo

Software Engineer, Senior

Annapolis Junction, Maryland, United States

$100k-$275k/yr OnsiteFull Time

Navstar: Provides IT and cybersecurity solutions to the intelligence community.

7+ YOEActive TS/SCI clearance with Polygraph; strong Java experience; proficient in Java/JEE, Python, C/C++, SQL, web services; SAFe/DevOps practices; test automation; Windows/Linux; cryptographic tech; web UI; JSON/XML; able to work independently in fast-paced environment.

Java, Python, C/C++, SQL, SOAP, WSDL, JSON, XML, XSLT, PostgreSQL, Oracle, Jenkins, Eclipse, Tomcat, WebLogic, JBoss, PowerShell, Unix/Linux, Windows, MongoDB

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Backend Software Engineer - HYBRID

Annapolis Junction, Maryland, United States

$144k-$147k/yr HybridFull Time

Red Arch Solutions: Provides IT engineering solutions for the intelligence community.

7+ YOEBachelor's in computer science or related field plus seven years of software engineering experience in similar programs; experience with test procedures, technical documentation, Agile, AWS; proficient with Java, C++, or Python, Git, SQL/PostgreSQL, Jira/Confluence.

Java, C++, Python, Git, PostgreSQL, SQL, Amazon Web Services, Jira, Confluence

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Automated Testing Software Engineer (mid-level)

Dahlgren, Virginia, United States

$92k-$135k/yr OnsiteFull Time

SimVentions: Provides engineering and technology services for defense customers.

5+ YOE5-8 years of professional software development and automated testing experience; on-site at Dahlgren, VA; DoD/Secret clearance required.

Python, C++, Git, GitLab, Docker, Jenkins, RedHat Linux, Rust, Automated testing frameworks

2mo

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2mo

Associate Software Engineer

Arlington or Mount Laurel

$72k-$114k/yr OnsiteMultiple Commitments Available

Innovative Defense Technologies: Develops automated software integration and testing solutions for defense.

0+ YOE0-1 years of experience; BS in CS/CE/EE/Physics/Math or equivalent; ability to travel up to 25%; strong Java, JavaScript, Python or C++ skills; distributed systems knowledge; SDLC and OO programming familiarity; experience with Git/SVN; testing and configuration management.

Java, C++, Python, JavaScript, Linux, Git, SVN, Docker, Kubernetes, Openshift, React, Angular