Python Software Developer Jobs in Lexington Park, MD, US

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Python Developer

Lexington Park, Maryland, United States

$55k-$126k/yr OnsiteFull Time

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

Software development experience with Python/JavaScript/Scala; ability to obtain Secret clearance; HS diploma or GED; desirable ML/AI knowledge.

Python, JavaScript, Scala, AI/ML tools

1mo

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1mo

Python Developer (Cybersecurity)

Dahlgren, Virginia, United States

OnsiteFull Time

TMC Technologies: Provides engineering and IT services to government and defense clients.

Develop software and security tools using Python; ability to obtain Secret security clearance; Bachelor's in Computer Science or Cybersecurity; on-site at NSWC Dahlgren.

Python

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Senior Software Developer

Fort Belvoir, Virginia, United States

OnsiteFull Time

Applied Research Associates: Provides scientific research and engineering solutions for complex problems.

6+ YOESenior software developer with 6-10 years of experience in software development; strong Java, Python, web tech, cloud, containers; Agile leadership; TS/SCI upgrade path.

HTML, CSS, JavaScript, Angular, Python, Java, Golang, Vue, React, AWS, Azure, GCE, Docker, Kubernetes, Helm, CI/CD, SQL, NoSQL, Postgres, MySQL, Redis, MongoDB

1mo

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1mo

Software Developer

Dahlgren, Virginia, United States

OnsiteFull Time

Technical Intelligence Solutions: Provides specialized engineering and cloud solutions for defense missions.

3+ YOE3+ years in software development; OO programming in Python/Go/C#/Java; version control; CI/CD (GitLab); containerization; PowerShell/Bash automation; HS diploma or GED.

Python, Go, PowerShell, Bash, Git, DOTNET, C#, Java, JavaScript, SQL, Linux, Windows, Docker, Kubernetes, Rancher, PostgreSQL, MySQL, SQL Server, MongoDB, jQuery, d3, React, Vue, AWS, Azure, APIs

1mo

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1mo

Software Engineer/Developer

Quantico or Gainesville

OnsiteFull Time

Redhorse: Delivering data insights and technology solutions to government agencies.

3+ YOETS clearance, BS in CS/CE or related field, 3+ years software development, proficiency in C#/C++/Java/Python, scripting (Bash/PowerShell/Perl).

C/C++, C#, Java, Python, Bash, PowerShell, Perl, Docker, Kubernetes, AWS, Azure, GCP, Wireshark, tcpdump, IDAx, HexRays, OllyDbg

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Software Developer

Welcome, Maryland, United States

$75k-$102k/yr OnsiteFull Time

Space Ground System Solutions: Provides engineering services for satellite ground systems and space missions.

0+ YOE0-5 years software engineering experience; Linux environment proficiency; Java, Go, JavaScript, C/C++, Python knowledge.

Java, Go, JavaScript, C/C++, Python, Linux, Red Hat Enterprise Linux (RHEL), Docker, Kubernetes, Podman, Git, Bitbucket, Jira, HTML, CSS, React, REST, JSON, WildFly

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Software Engineer

Dayton or Patuxent River or Beavercreek Township

HybridFull Time

Applied Research Solutions: Providing technical engineering and mission support to defense agencies.

5+ YOEExperienced software developer for classified cloud platform with TS/SCI clearance required.

Golang, Python, Bash, PowerShell, JavaScript/Node, Docker, Kubernetes, Podman, PostgreSQL, SaltStack

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Software Developer

Dahlgren, Virginia, United States

HybridFull Time

Zekiah Technologies: Provides software development and geospatial engineering services.

5+ YOEFive years of professional software development experience; Agile experience; DoD exposure a bonus; security clearance required; BS in CS/Engineering or related field; CISSP/Security+ preferred.

C/C++, C#, .NET, Java, Python, Amazon Web Services, PHP, Data Science (coding), WPF, MVC

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Software Engineer

Annapolis Junction, Maryland, United States

OnsiteFull Time

Base-2 Solutions: Delivers engineering and technology services for national security.

14+ YOEFourteen years of software engineering experience; BS in CS; Go, Python, Terraform, AWS; large-scale data processing and real-time systems.

Go, Python, Terraform, AWS

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Summer 2026 Software Developer Internship

Annapolis Junction, Maryland, United States

$26-$35/hr OnsiteInternship, Full Time

GDITNYSE: GD: Delivers IT and mission services to government agencies.

0+ YOEC/C++, JavaScript, Java, Python software development; 0+ years experience; US citizenship.

Python, Java, C/C++, Rust, JavaScript, TypeScript

2mo

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2mo

Senior Software Engineer

Annapolis Junction or Columbia

OnsiteFull Time

Freedom Technology Solutions Group: Technical consulting and engineering for the national security community.

7+ YOESenior software engineer with 7+ years SWE experience; BS in CS required; strong Java/Python, CI/CD, and security clearance with polygraph; experience with Agile; ability to design, develop, and deploy software.

Java, Python, Git, Shell, Maven, JavaScript, HTML, CSS, JUnit, IDE, Spring, Jenkins, Hibernate, MySQL, Web Services, Google Web Toolkit, Vaadin, Docker, Kubernetes, OpenShift, GitLab CI, SonarQube

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Software Engineer

King George, Virginia, United States

OnsiteFull Time

Southeastern Computer Consultants: Engineering and training solutions for military weapon systems.

5+ YOEActive Secret clearance, US citizen, BS in engineering/science/technical field, 5 years software engineering experience, strong Java/C++/Python, Linux, Windows, Git, Jira, and multithreading.

Java, C++, Python, Git, Jira, Linux, Windows, Multithreading, JavaFX, JUnit, Mockito, Network programming in Java

1mo

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1mo

Software Engineer (Hybrid)

Alexandria, Virginia, United States

HybridFull Time

Akima: Delivers mission-critical services and technology to federal agencies.

4+ YOEUS citizen; SECRET clearance; BS in software engineering or computer science; 4+ years of hands-on software development; experience with CI/CD, distributed systems, networking, embedded software.

C++, Java, Python, .NET, SQL, MySQL, Oracle, GitLab, Docker, Kubernetes, FPGA interfaces, SDR, USRP, HackRF, BladeRF

1mo

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1mo

1655 - Software Developer

Patuxent River, Maryland, United States

$90k-$120k/yr OnsiteFull Time

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

2+ YOE2-5 years software development experience; Java; Linux (RHEL); containerized microservices; US citizen; bachelor's degree; active Secret clearance or higher

Linux, RHEL, Java, Python, Atlassian Tools, Docker

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Senior Software Engineer

Annapolis Junction, Maryland, United States

$212k-$265k/yr OnsiteFull Time

Boeing Intelligence & AnalyticsNYSE: BA: Delivers intelligence, analytics, and cyber solutions for national security.

14+ YOEAt least 14 years of software engineering experience; bachelor's in Computer Science; active TS/SCI with polygraph; Linux development; proficiency in Python, C++, Java, or JavaScript; experience with Jira/Confluence and GitLab/GitHub.

Linux, Jira, Confluence, GitLab, GitHub, Python, C++, Java, JavaScript

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Software Developer

Vienna, Virginia, United States

OnsiteFull Time

KBRNYSE: KBR: Provides engineering, technology, and professional services for global markets.

8+ YOEActive TS/SCI with Polygraph; Bachelor's degree; minimum 8 years experience; experience in modern languages (Java, C#, Python, JavaScript/TypeScript); source control (Git); team collaboration; documentation.

Java, C#, Python, JavaScript, TypeScript, Git

2mo

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2mo

Software Engineer 3

Annapolis Junction, Maryland, United States

OnsiteFull Time

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

20+ YOETwenty years SWE experience; BS in computer science; strong Python, Kubernetes, Git, CI/CD, sprint development; RF experience; active security clearance with polygraph.

Python, Kubernetes, Git, CI/CD, Sprint

2mo

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2mo

Software Developer (Mid-Level)

St Inigoes, Maryland, United States

$111k-$185k/yr OnsiteFull Time

Scientific Research Corporation: Advanced engineering providing technology solutions for national security.

3+ YOEBachelor's degree in CS/SE or related field; Top Secret/SCI clearance; 3+ years software development experience; DoD-focused security practices knowledge.

C, C++, Java, Python, C#, Git, SVN, Jenkins, Azure DevOps, OWASP, NIST 800-53

2mo

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2mo

Senior Software Engineer

Severn, Maryland, United States

HybridFull Time

Lockheed MartinNYSE: LMT: Designs and builds advanced aerospace and defense systems.

Experience in embedded software for space systems; proficiency in C/C++, Python; Agile; US citizen with ability to obtain security clearance.

C/C++, Python, Rust, Microsoft Windows, GNU/Linux

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Senior Software Engineer

Gambrills, Maryland, United States

$91k-$130k/yr HybridFull Time

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

7+ YOE7+ years building scalable software; Java/C/C++, C#, Python; RESTful APIs; Agile/Scrum; strong communication.

Java, C/C++, C#, Python, Node.js, JavaScript, RESTful APIs, Agile/Scrum

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Associate Software Engineer

Annapolis Junction, Maryland, United States

$176k-$226k/yr OnsiteFull Time

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

0+ YOEEntry-level software engineer with TS/Poly, US citizenship, CS degree or equivalent, and experience in AI/ML, AWS, C++, Python, or Golang.

Terraform, AWS, C++, Python, Golang, GPU-Enabled Applications, Large-Scale Streaming Data Analytics

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Software Developer - NASA

Annapolis, Maryland, United States

RemoteFull Time

INNOVIM: Delivers data engineering and scientific solutions to federal agencies.

3+ YOEProficiency in Python, Clojure, Node.js; Git; cloud platforms (AWS, Azure, Google Cloud); Redis; containerization; strong problem-solving and communication.

Python, Clojure, Node.js, Git, AWS, Azure, Google Cloud, Redis, Docker, Kubernetes, GraphQL, ElasticSearch

1mo

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1mo

Senior Software Engineer

Quantico, Virginia, United States

RemoteFull Time

ThinkTek: Provides management and IT consulting services to federal agencies.

8+ YOESenior software engineer with 8+ years' experience in software architecture, systems integration, and cybersecurity for enterprise/simulation environments.

Python, Java, C++, JavaScript, Cloud (AWS/Azure), Containers, Microservices, APIs, CI/CD, DevSecOps

1mo

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1mo

Software Engineer

Tampa or Fort Belvoir

OnsiteFull Time

Odyssey Systems: Providing technical and engineering services to federal government agencies.

3+ YOEUS citizen; active secret clearance with ability to obtain TS/SCI; bachelor’s in CS/IS or related field with 3–6 years of experience; proficiency in Java/C#/Python/JS/TS; Git; REST/microservices; team collaboration; strong communication.

Java, C#, Python, JavaScript, TypeScript, Git, RESTful APIs, microservices, CI/CD, Docker, Kubernetes, Databases

2mo

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2mo

Software Engineer Level 3

Fort Meade, Maryland, United States

$235k-$255k/yr OnsiteFull Time

Markon: Provides management consulting and technical services to government agencies.

20+ YOESenior software engineer with TS/SCI w/ poly, BS in CS/Engineering, 20 years of relevant experience, NiFi expertise, Java/Groovy, Bash/Python, Linux, Docker/Kubernetes, and IaC tools.

Apache NiFi, Java, Groovy, Bash, Python, Linux/RHEL, Docker, Kubernetes, Ansible, Terraform

1mo

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1mo

Senior Software Engineer - Back End

Annapolis Junction, Maryland, United States

$187k-$250k/yr HybridFull Time

Boeing Intelligence & AnalyticsNYSE: BA: Provides intelligence analytics and cyber solutions for national security.

20+ YOESenior software engineer with 20+ years experience, TS/SCI with Poly, Bachelor's in CS/Engineering, strong Java/C++/Python, AWS, and DevOps.

AWS, Docker, Kubernetes, HAProxy, Nginx, Elastic Stack, Git, Java, C++, Python, PostgreSQL, SQL

1mo

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1mo

Software Engineer, Level 1 (AE26031323SW1)

Annapolis Junction, Maryland, United States

$145k-$155k/yr HybridFull Time

Advantage Engineering & IT Solutions: Provides technical engineering and IT services for government agencies.

7+ YOESeven years of DoD/IC software engineering experience; Java, Python; Git; IntelliJ/Eclipse; Maven; Spring Boot/Flask; Top Secret/SCI with polygraph.

Java, Python, Git, IntelliJ, Eclipse, Maven, Spring Boot, Flask, Kafka, Flink, MongoDB, ArangoDB, Redis, PostgreSQL, Elasticsearch, Kubernetes, Docker, Containerd, AWS

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Software Engineer 3 - Linux/Bash/Python/Java/Gitlab/CI/CD/Docker/Ansible/Grafana/NiFi

Annapolis Junction, Maryland, United States

$130k-$270k/yr OnsiteFull Time

Captivation Software: Provides specialized software engineering for the intelligence and defense communities.

9+ YOESenior software engineer with TS/SCI clearance, 9+ years experience, strong Linux, Python/Java, CI/CD, Docker/Kubernetes, and dataflow/ETL skills.

Linux, Shell, Python, Java, Git, GitLab CI, Docker, Kubernetes, Prometheus, Grafana, Kibana, Nagios, Ansible, NiFi, Spark

1mo

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1mo

Software Engineer - Hybrid

Annapolis Junction, Maryland, United States

$165k-$185k/yr HybridFull Time

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

3+ YOETS/SCI with Poly required; degree plus years; Linux, Bash, Python/Java, Airflow, Spark, Docker/Podman, Git; AWS familiarity.

Apache Airflow, Python, Java, Bash, Linux, Apache Spark, Docker, Podman, Git, AWS

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Principal Software Developer, Hypervelocity/C++

Dahlgren, Virginia, United States

$120k-$150k/yr OnsiteFull Time

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

10+ YOE10+ years in software development; BS in CS/Math/Physics/Aerospace/Engineering or equivalent experience; active SECRET clearance; US citizenship; on-site in Dahlgren, VA; valid Real ID driver license; occasional travel between local worksites; proficient with C++, Python, Java; Agile experience.

C++, Python, Java, Linux, Windows, Agile, Scrum, LeSS, Podman, Docker, Jenkins, Git, GitLab, VSCode, VMware, JIRA, Confluence, JUnit

1mo

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1mo

Network Software Developer, Journeyman NGTS

Patuxent River, Maryland, United States

OnsiteFull Time

BGI: A government contractor providing software solutions and services for defense and national security clients.

3+ YOEBS in science/engineering; 3+ years C++; DoD Secret clearance; experience with network programming and software development.

C++, Python, HTML, Sockets, DDS, HLA, DIS

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Software Engineer (RR1013)

Dahlgren, Virginia, United States

OnsiteFull Time

HART Technologies: Designs and manufactures electronic systems and software for defense applications.

5+ YOEBachelor's in engineering/science/technical field; 5 years in software engineering; 2 years with Navy/Joint systems; US citizenship and ability to obtain DoD clearance.

Java, C++, Python, C, Lua, Swing, JavaFX, Linux

1mo

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1mo

Software Engineer (AHT)

Manhattan Beach or Hollywood or Huntsville

$92k-$138k/yr OnsiteFull Time

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

3+ YOEBS in STEM with 3 years of experience; active SECRET clearance; Agile/CI/CD; C#, Java, or .NET; OO design; SQL; scripting (yaml, Python, PowerShell, Curl); Git/Jira/Confluence; DevOps.

C#, Java, .NET, SQL, YAML, Python, PowerShell, Curl, Git, GitHub, Jira, Confluence, Docker, Kubernetes, AWS, Azure, REST, AsyncAPI, UML

21h

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21h

Software Engineer 3

Annapolis Junction, Maryland, United States

$176k-$238k/yr OnsiteFull Time

General Dynamics Information TechnologyNYSE: GD: Provides mission-critical IT services to government and defense organizations.

8+ YOE8+ years of related experience; TS/SCI w/ Polygraph; Bachelor's degree; Linux CLI/tools; Python, Bash; front-end tech (TypeScript, HTML/CSS, React/Angular/Vue); Streamlit; data processing; Git; Jupyter; distributed engines (Spark).

Linux, GitLab, Python, Bash, Java, TypeScript, HTML, CSS, JavaScript, React, Angular, Vue, Streamlit, Spark, Jupyter, pandas, NumPy, Parquet, JSON, CSV, XML, Airflow, MySQL, MariaDB, PostgreSQL, Slurm, JIRA, Confluence, Git

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Embedded Software Developer

Dahlgren, Virginia, United States

OnsiteFull Time

Bowhead: Federal government contracting and professional services provider.

6+ YOEBS in engineering/technical field; 6 years technical experience including embedded software, hardware integration, C/C++, RTOS/Linux; DoD/Navy experience preferred.

C/C++, RTOS, Linux, JTAG, SWD, Git, Python, SharePoint, Microsoft Teams, UART, SPI, I2C, CAN, Ethernet

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AI/ML Software Engineer

Annapolis, Maryland, United States

HybridFull Time

APV: Provides information technology and consulting services to government agencies.

3+ YOE3+ years data science/ML and 3+ years software engineering/architecture; experience with AI-enabled software systems, Python backend, SQL databases; familiarity with AI/LLM and non-LLM approaches.

Python, PostgreSQL, Git, Docker

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AI Software Test Engineer

Dahlgren, Virginia, United States

HybridFull Time

Arcfield: Systems engineering and mission support for defense and space.

3+ YOEActive Secret clearance; 3+ yrs in QA/testing of tactical software; AI testing experience; non-deterministic testing; Python a plus; DoD background.

Python, Software Testing

1mo

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1mo

Senior Software Engineer

Suitland, Maryland, United States

OnsiteFull Time

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

8+ YOEBachelor’s degree in relevant field; 8 years of experience; proficiency in .NET, Java, Python, C#; TS/SCI w/ Poly clearance required.

Microsoft .NET, ASP.NET, C#, Java, Python, Oracle

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AI Software Engineer

Annapolis Junction, Maryland, United States

OnsiteFull Time

NetSage: Delivering specialized cyber services to the U.S. federal government.

5+ YOETS/SCI with polygraph; BS in CS or related STEM with 5 years experience; Python; AI/ML tooling; Agile tools; security clearances.

Python, LLM, RAG, Git, Jira, Confluence, Rust, Claude Code, Codex