Python Test Software Developer Jobs in Leonardtown, MD, 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

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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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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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

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

1mo

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1mo

Software Engineer - Product Test Frameworks - .NET/TestStand

United States or India or Carlsbad or Tempe or Duluth or Hyderabad or Remote - Georgia or Remote - California or Remote - Arizona or Carlsbad or Tempe

$141k-$222k/yr RemoteFull Time

ViasatNASDAQ: VSAT: Provider of global satellite-based connectivity and secure communication solutions.

5+ YOEBS in Electrical Engineering or CS, 5+ yrs systems/test, TS/C#/Python, test automation, APIs, travel up to 10%.

TestStand, C#, Python, LabVIEW

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

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

2mo

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2mo

Software Engineer, Mid

Fort Belvoir, Virginia, United States

$87k-$198k/yr HybridFull Time

Booz AllenNYSE: BAH: Provides management and technology consulting services to government and commercial clients.

5+ YOE5+ years in Python/Java/C++, Linux, OO programming, multi-process/thread apps; Agile with JIRA/Confluence/Git; test-driven development; Secret clearance; Bachelor's in Computer Science.

Python, Java, C++, Linux, Docker, Jenkins, Git, JIRA, Confluence, CI/CD

2mo

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2mo

Security Verification Test (SVT) Software Engineer

Annapolis Junction, Maryland, United States

$70k-$190k/yr OnsiteFull Time

Belay Technologies: Provides engineering services and automation software to defense agencies.

8+ YOETS/SCI with polygraph; Bachelor's in CS or related field; 8+ years exp; strong Java; diverse tech experience; Windows/Linux; web services; cryptography basics; agile/scrum experience.

Java, Python, C/C++, SQL, SOAP, WSDL, PERL, PowerShell, VBS, Eclipse, Postgres, Oracle, Jenkins, JSON, HTML, XML, XSLT, JEE, Mongo, Tomcat, WebLogic, JBoss, Selenium, Mockito, Cucumber, FITNesse, UFT, BDD, SAFe, J2EE, XML, CANONICALIZATION

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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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

Signals Software Engineer (RC-3)

Annapolis Junction, Maryland, United States

$210k-$250k/yr OnsiteFull Time

Legato: Provides IT engineering services to the intelligence community.

12+ YOEExperience with C++, Java, Linux; RF signal processing; software design and testing; leadership of software teams; TS/SCI with polygraph clearance.

C++, Java, Linux, Jenkins, Bamboo, Docker, Kubernetes, Python, Git, Clearquest, Trac, Subversion, Matlab, Simulink, GNU, REDHAWK, SCA

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

2mo

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2mo

O-RAN DU Test Engineer

Arlington, Virginia, United States

HybridFull Time

DeepSig: Developing AI software for wireless signal processing and sensing.

6+ YOEDesign, develop, and execute tests for O-RAN DU software and hardware; ensure conformance, interoperability, performance, and reliability; automate tests and support CI/CD.

Python, Shell, Kubernetes, Docker, Linux, CI/CD tools

1mo

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1mo

Principal Software I&T Engineer (Contract)

Arlington or Denver or Houston or Merritt Island

RemoteContract

Airbus U.S. Space & DefenseEuronext Paris: AIR: Provides satellite, helicopter, and cybersecurity solutions for U.S. defense.

15+ YOEEmbedded software, testing, and flight software development; 15+ years experience with B.S. or 12+ with M.S.; US citizenship; ability to obtain clearance; periodic travel.

C/C++, TCL, Python, Embedded software development and testing, RTOS, Device driver development, GNC algorithms, Software safety assurance, Test scripting, Simulators, HIL

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Cloud Software Engineer CSWE3 - 27154

Hanover, Maryland, United States

OnsiteFull Time

PAX Engineering: Provides software and systems engineering for the intelligence community.

Experience with front-end (Javascript/React) and back-end (Node.js, Python, Rust); microservices (Kubernetes, Helm); cloud migration; databases (MySQL, Redis, Neo4j); messaging (RabbitMQ/Kafka); testing (Jest); and related devops tools.

Kubernetes, Helm, Terraform, Ansible/Salt, Grafana, InfluxDB, Elasticsearch, Redis, MySQL, Neo4j, RabbitMQ, Kafka, NiFi, Superset, React, Javascript, Typescript, Node.js, Python, Rust, Shell, WebSockets, JBLOCKS, CASPORT, CAMKEY, LAC, COI

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Principal Backend Software Engineer - HYBRID

Annapolis Junction, Maryland, United States

$220k-$224k/yr HybridFull Time

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

20+ YOEActive TS/SCI with polygraph; Bachelor's in CS or related field plus 20 years SWE experience; 24 years may substitute; experience with test procedures, documentation, Agile, Jira/Confluence, Git, Java/C++/Python, Postgres, AWS.

Git, Java, C++, Python, Postgres, SQL, AWS, Jira, Confluence

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ME00582-Software Engineer 3

Annapolis Junction, Maryland, United States

$175k-$235k/yr OnsiteFull Time

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

20+ YOETop Secret/SCI with NSA Full Scope Poly; 20+ years SWE experience; BS in a STEM field; automation testing and QA; Agile collaboration.

Gherkin, Cucumber, Selenium, Python, Java, HTML, CSS, JavaScript, SQL

1mo

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1mo

1644 - Software Integration Engineer

Patuxent River Naval Air Station, Maryland, United States

$90k-$120k/yr OnsiteFull Time

Sigma Defense: Develops tactical communications and intelligence systems for defense.

2+ YOE2-5 years experience in installing, testing, configuring, upgrading, and supporting COTS/GOTS; SRE familiarity; Linux; IaC; containerization; Git; scripting; US citizenship; active Secret clearance or higher.

RHEL, JAVA, Python, Bash Scripting, Docker, Hypervisors

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Software Testing Principal

Arlington, Virginia, United States

RemoteFull Time

Syms Strategic Group: Provides IT and professional services to federal government agencies.

10+ YOEStrong programming skills in C#, Java, or Python; expert in test planning, execution, and automation; experience with Agile/SDLC; 10+ years in software testing; U.S. citizenship; security clearance eligibility (Public Trust).

Selenium, TestNG, JUnit, QTP, LoadRunner, GitHub Actions, JIRA, Bugzilla, JMeter, Gatling, SQL, APIs, CI/CD, Git, Subversion, AWS, Azure

1mo

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1mo

Lead AI Full Stack Software Engineer – Investments Technology

Washington, District of Columbia, United States

$145k-$309k/yr HybridFull Time

T. Rowe PriceNASDAQ: TROW: Provides global investment management and retirement planning services.

8+ YOE8+ years in OO languages; cloud-native AWS/Azure; leadership; strong problem-solving; stakeholder communication; automated testing and CD.

AWS, Azure, Docker, Kubernetes, Java, Python, JavaScript, LLM, agent frameworks, Retrieval augmented generation, OpenAI Codex, Bedrock, Kiro, MCP servers

1mo

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1mo

Software QA Lead

Arlington, Virginia, United States

$145k-$185k/yr OnsiteFull Time

Sabre Systems: Provides engineering and IT solutions for defense customers.

4+ YOE2+ MgmtBachelor’s degree; 4+ years software engineering; 2+ years leadership in QA; diverse testing methodologies; SDLC knowledge; test automation; CI/CD; strong communication.

Python, pytest, C++, GoogleTest, Selenium, CI/CD, DevOps tools

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Software Quality Assurance Lead

Arlington, Virginia, United States

$130k-$217k/yr OnsiteFull Time

American Systems: Providing engineering and IT solutions to federal government agencies.

4+ YOE2+ MgmtSenior QA lead with 4+ years software engineering/testing, 2+ years leadership; strong testing methodologies; SDLC/DevOps; TS/SCI clearance eligibility.

Python, pytest, C++, GoogleTest, Selenium, CI/CD, DevOps

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Principal Engineer - Agentic AI Applications

Washington, District of Columbia, United States

$168k-$230k/yr HybridFull Time

SerkoNZX: SKO: Provides online corporate travel and expense management software.

12+ YOE12+ years software engineering; 4+ years in technical leadership; production experience with LLM-powered or agentic systems; Python backend expertise; strong observability, architecture, and testing skills

Python, LangGraph, AutoGen, CrewAI, TypeScript, Node.js, RAG pipelines, vector databases, tool-calling APIs, multi-step reasoning

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Data Engineer II

Annapolis, Maryland, United States

$110k/yr OnsiteFull Time

Crisis24: Integrated risk management and global crisis response solutions.

2+ YOEMaster's or Bachelor's in CS/DS/IT with 2+ years experience; strong Python, SQL, NoSQL, data modeling, testing, and data visualization.

Python, SQL, NoSQL, Data Visualization, Automated Testing, Big Data Technologies

2mo

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2mo

Staff Engineer, DevOps (R4666)

San Diego or Dallas or Boston or Washington or San Francisco or United States

$150k-$220k/yr OnsiteFull Time

Shield AI: Develops autonomous AI-powered aircraft and pilot software for defense.

7+ YOELead DevOps across CI/CD, automation; 7+ years experience; strong CI/CD tools; containerization; scripting; test integration; reliability at scale.

Azure DevOps, Jenkins, GitHub Actions, Docker, Kubernetes, Python, Bash, PowerShell, Terraform, Ansible, Grafana, Prometheus

3mo

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3mo

Frontend Lead Engineer

Richmond or Arlington

OnsiteFull Time

Koalafi: Provides lease-to-own and loan financing for non-prime consumers.

6+ YOE6+ years of front-end experience with modern web technologies (React, Vue, Angular); four-year CS/engineering degree; experience with REST APIs, AWS, and testing; in-person location requirement to Richmond, VA or Arlington, VA.

React, Vue, Angular, Golang, Java, Node, Python, Cypress, Playwright, AWS, Kubernetes, Postgres

3mo

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3mo

Eng Sr Prin II - Test

Annapolis Junction, Maryland, United States

$150k-$254k/yr OnsiteFull Time

BAE SystemsLondon Stock Exchange: BA: Provides global defense, aerospace, and information security solutions.

8+ YOEMust have Java experience; strong JS/web services; cryptography basics; Windows/Linux proficiency; able to work independently and in Agile teams.

Java, Python, C/C++, SQL, SOAP, WSDL, PERL, PowerShell, VBS, Eclipse, Postgres, Oracle, Jenkins, Web Services, JSON, HTML, XML, XSLT, cryptography, Windows, Linux, JEE, Tomcat, WebLogic, JBoss, Selenium, BDD, SAFe

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Computer Scientists

Annapolis Junction or Fort Meade

OnsiteFull Time

Artera Technologies: Provides software and systems engineering for the intelligence community.

3+ YOEMid to senior level software/firmware design, development, test; TS/SCI with poly required.

Python, C, C++

1mo

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1mo

Quality Assurance Engineer (Sweep)

Arlington, Virginia, United States

HybridFull Time

IntraFi: Provides deposit placement and liquidity services to financial institutions.

5+ YOE5+ years in software QA within Agile teams; strong automation experience; Java, JavaScript, Python; Playwright/Selenium; API testing; SQL/PLSQL; AWS; CI/CD; QA leadership and offshore collaboration.

Playwright, Selenium, Geb, Groovy, Cucumber, JavaScript, WebDriverIO, Postman, REST-assured, Java, Python, Angular, PL/SQL, Oracle, Jenkins, Splunk, JIRA, Bitbucket, Confluence, AWS

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Senior Data Analyst

Quantico, Virginia, United States

OnsiteFull Time

Data Intelligence: Provides engineering and cybersecurity solutions for federal government clients.

10+ YOEMaster’s degree in data science, computer science, engineering, mathematics, or related field; 10+ years in data science or advanced analytics; experience with software integration/testing; strong Python and R; data science, data mining, statistics, and graph algorithms; SQL/NoSQL; API development; ETL pipelines; data manipulation and visualization...

Python, R, SQL, NoSQL, APIs, ETL, Jupyter Notebook, Pandas, NumPy, Requests, Data Visualization Tools, Spreadsheet software