Python Software Developer Jobs in Leonardtown, MD, US

Save

Mark Applied

Hide

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

Save

Mark Applied

Hide

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

Save

Mark Applied

Hide

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

Save

Mark Applied

Hide

Software Engineer (Python/Django)

Arlington, Virginia, United States

RemoteFull Time

Allocore: Cloud platforms for government loans, grants, and fraud prevention.

3+ YOE3+ years Python/Django; design and build scalable web apps; APIs with DRF; async processing; PostgreSQL; AWS/GCP/Azure; code reviews; occasional travel to DC area; U.S. citizenship for clearance.

Python, Django, Django REST Framework, Celery, PostgreSQL, AWS, GCP, Azure, Git, CI/CD

Save

Mark Applied

Hide

Software Engineer III (Python)

Washington, District of Columbia, United States

$165k-$180k/yr OnsiteFull Time

TruistNYSE: TFC: Offers personal banking, business lending, and investment management services.

Proficient in Python with hands-on AWS, GitLab CI/CD, containerized apps, Terraform/CloudFormation; IaC with security; cloud infrastructure automation; English fluency; onsite in Washington DC; visa sponsorship not provided.

Python, GitLab, AWS, Terraform, CloudFormation, Wiz, ECS, EKS, EC2, S3, CloudTrail, CloudWatch, CloudFront, VPC

Save

Mark Applied

Hide

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

Save

Mark Applied

Hide

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

2mo

Save

Mark Applied

Hide

2mo

Python / AI Engineer

Washington, District of Columbia, United States

OnsiteFull Time

CognizantNASDAQ: CTSH: Provides information technology consulting and business process outsourcing services.

3+ YOEDesign, develop, and deploy AI solutions using cloud architectures and LLMs; lead projects; implement NLP, ML, and generative AI; ensure security and governance.

Python, TensorFlow, PyTorch, LangChain, LangGraph, Google Cloud, Azure, Azure Functions, Azure API Management, Azure Service Bus, Logic Apps, Azure Storage, Azure Cognitive Services, Azure Cosmos DB, Azure Data Factory, Databricks, Azure Data Lake, Splunk, AppInsights, Agentic AI

1mo

Save

Mark Applied

Hide

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

Save

Mark Applied

Hide

Software Developer

Springfield, Virginia, United States

OnsiteFull Time

ManTech: Provides technology solutions for defense and intelligence agencies.

8+ YOE3+ MgmtSenior software developer with 8+ years’ experience, leadership 3+ years, strong Python/Java/C++/JavaScript, secure coding, Agile/Scrum, Git, cloud, containers, SQL/NoSQL.

Python, Java, C++, JavaScript, Git, Docker, Kubernetes, SQL, NoSQL, Agile, Scrum

1mo

Save

Mark Applied

Hide

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

Save

Mark Applied

Hide

Software Engineer

Arlington or United States

$70k-$150k/yr RemoteFull Time

DocMe360: Delivering digital strategy and clinical AI solutions for government.

5+ YOE5–8+ years software development; healthcare domain experience; Agile; Python, React, FastAPI; REST APIs; CI/CD/DevSecOps; strong problem solving and communication.

Python, React, FastAPI, REST APIs, CI/CD, DevSecOps, VistA RPC, MUMPS, VistA, EHR

Save

Mark Applied

Hide

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

Save

Mark Applied

Hide

Senior Software Engineer

Fredericksburg, Virginia, United States

OnsiteFull Time

Obsidian Solutions Group: Delivers technology-enabled and mission-oriented solutions to government agencies.

8+ YOE3+ MgmtLead software architect; 8+ years in software development; distributed simulation, Unity/Unreal, C#/Python/JavaScript; DevSecOps and containers.

Unity, Unreal, C#, Python, JavaScript, TypeScript, Docker, Kubernetes

Save

Mark Applied

Hide

Expert Software Engineer

Springfield, Virginia, United States

$197k-$218k/yr HybridFull Time

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

6+ YOE3+ years AWS, 6+ years Agile software development, Python, DevSecOps/CI-CD, IaC, containers, TS/SCI poly, security clearance

AWS, Python, GitLab, Terraform, CDK, Docker, Kubernetes, OpenShift, SAFe, Jira, Confluence, SageMaker

2mo

Save

Mark Applied

Hide

2mo

Software Engineer

Washington, District of Columbia or New York or Remote

$100k-$130k/yr HybridFull Time

Slate: Online magazine and podcast network providing news and analysis.

Experience in full stack web development, JavaScript/Python, scaling content, and publishing workflows.

Node.js, Vue.js, Python, Django, Redis, Postgres, React Native, Docker

Save

Mark Applied

Hide

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

Save

Mark Applied

Hide

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

1mo

Save

Mark Applied

Hide

1mo

Software Developer

Springfield, Virginia, United States

$118k-$201k/yr OnsiteFull Time

BAE SystemsLondon Stock Exchange: BA: Designs and manufactures advanced defense and aerospace systems.

3+ YOEBachelor’s degree in CS/IS/Engineering; at least 3 years development experience; proficiency in Python, Java, Perl, Angular, HTML/CSS, XML, Tomcat/Solr, Oracle, Postgres; experience in cloud and REST APIs.

Python, Java, Perl, Angular, HTML, CSS, XML, Apache Tomcat (Solr), Alfresco, Oracle, Postgres, REST APIs, AWS

Save

Mark Applied

Hide

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

Save

Mark Applied

Hide

Software Developer

Chantilly or Bowie

$80k-$128k/yr OnsiteFull Time

Peraton: National security and mission-critical government technology services provider.

5+ YOEU.S. citizenship; ability to obtain/maintain Public Trust; degree with experience (see details); cloud and software development experience; REST APIs and microservices; Agile/DevSecOps; FAA/NAS familiarity desired.

AWS, Azure, GCP, Java, Python, C#, REST APIs, Docker, Kubernetes, Terraform, CloudFormation, ARM templates, DevSecOps, CI/CD, Relational databases, NoSQL, Agile

1mo

Save

Mark Applied

Hide

1mo

Software Engineer

Arlington, Virginia, United States

HybridFull Time

Elder Research: Provides data science, machine learning, and predictive analytics consulting services.

3+ YOE3+ years software development with C#/.NET, Azure, CI/CD, and LLM API integration; US citizenship with Public Trust clearance.

C#, NET, Azure, ARM templates, Bicep, Azure DevOps, GitHub Actions, Python, LLM APIs, OpenAI, Anthropic

Save

Mark Applied

Hide

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

Save

Mark Applied

Hide

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

Save

Mark Applied

Hide

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

Save

Mark Applied

Hide

Senior Software/MLOps Engineer

Herndon or King of Prussia or Littleton

$105k-$185k/yr OnsiteFull Time

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

Python development, cloud platforms, containerization, TS clearance; experience in AI/ML workflows and software practices.

Python, AWS, Azure, GCP, Kubernetes, Docker, Helm

1mo

Save

Mark Applied

Hide

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

Save

Mark Applied

Hide

1mo

Software Engineer Mid

Chantilly, Virginia, United States

OnsiteFull Time

AnaVation: Providing technical engineering and cybersecurity solutions for federal agencies.

5+ YOEMid-level software engineer with 5+ years of experience; TS clearance with SCI access and CI poly; BS in CS/Software Engineering; proficient in Python, REST, SQL; agile experience.

Python, REST API, Git, SQL, MySQL, PostgreSQL, Docker, Kubernetes, Terraform, GraphQL, Kafka, Redis, Elasticsearch

Save

Mark Applied

Hide

Software Engineer

Springfield, Virginia, United States

OnsiteFull Time

ECSNYSE: ASGN: Provides advanced technology and engineering services to government agencies.

4+ YOEBachelor’s degree in Computer Science or related STEM field; US citizenship; Active Top Secret/SCI with CI-Poly eligibility; 4+ years of enterprise software experience; proficiency in C++, Python, JavaScript; Agile environment experience.

GitLab, Jira, Kubernetes, OpenShift, Linux, Bash, Python, C++, JavaScript

1mo

Save

Mark Applied

Hide

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

2mo

Save

Mark Applied

Hide

2mo

Software Engineer II

Washington, District of Columbia, United States

$102k-$145k/yr HybridFull Time

Technology Service Corporation: Develops radar sensors and provides engineering for defense systems.

4+ YOESecret DoD clearance; BS in CS/Math/Physics/EE; 3-5 years Python and software development; hardware-in-the-loop and simulation experience; strong math; independent and team work aptitude.

Python

Save

Mark Applied

Hide

Software Developer / Integration Engineer / INT Engineer - Active Secret Clearance

Washington, District of Columbia, United States

$160k-$185k/yr HybridFull Time

Riptide Technology: Provides specialized IT engineering services to government defense agencies.

5+ YOESoftware development, integration engineering, Python, AGILE, Linux, Docker/Podman, network modeling, and security clearance.

Python, Docker, Podman, Docker Compose, Git, Jenkins, Confluence, Jira, Artifactory, Linux, VMs, gRPC, REST

3mo

Save

Mark Applied

Hide

3mo

Staff Software Engineer, AI

New York or Washington or San Francisco

$200k-$275k/yr OnsiteFull Time

Peregrine Technologies: Data intelligence platform for public safety and government agencies.

8+ YOE8+ years in software development; strong Python/Django; AI/LLMs experience; ownership of features; cross-functional teamwork; NYC-based.

Python, Django, Celery, Airflow, Kafka, React, Redux, Mapbox, PostgreSQL, Elasticsearch, Bedrock, Sagemaker, AWS, Pulumi, Terraform, Kubernetes

Save

Mark Applied

Hide

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

3mo

Save

Mark Applied

Hide

3mo

Software Developer

Washington or Winchester

OnsiteFull Time

HighPoint Global: Delivers IT and customer experience solutions to government agencies.

2+ YOETwo years relevant experience; Bachelor's degree preferred; Top Secret clearance; CI polygraph may be required; experience with secure software systems.

Python, MS SQL, APIs, Blue Prism, RPA

3mo

Save

Mark Applied

Hide

3mo

Software Developer, Journeyman (Security Clearance Required)

Arlington or Pensacola

$81k-$139k/yr HybridFull Time

ICFNASDAQ: ICFI: Provides advisory and technology services to government and commercial clients.

3+ YOEBachelor’s or Master’s degree in Computer Science or Software Development or related field, with at least 3 years of relevant experience; 1+ year Python development; 1+ year AWS serverless; active security clearance; US citizenship.

Python, AWS, Hadoop/Cloudera, Spark, Power BI, Splunk, Bash, PowerShell, Wireshark, tcpdump, Zeek, SiLK, YAF, Linux, Databricks

Save

Mark Applied

Hide

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

Save

Mark Applied

Hide

2mo

Software Engineer 2

Annapolis Junction, Maryland, United States

OnsiteFull Time

RealmOne: Provides advanced technology and cybersecurity for national security missions.

14+ YOE14+ years software engineering experience; bachelor's in CS; current security clearance; full-stack and infra experience; Kubernetes, CI/CD, Go/Python/TypeScript; GitOps; Docker; Linux.

Kubernetes, Helm, GitOps, ArgoCD, Fleet, Docker, Go, Python, TypeScript, Linux

1mo

Save

Mark Applied

Hide

1mo

Software Developer

Washington, District of Columbia, United States

$65k-$102k/yr HybridFull Time

Noblis: Provides science and technology solutions for government missions.

7+ YOEBachelor's in computer science/engineering or related field; 7+ years experience; 3+ years programming/data management; proficient in Python, Power BI, SQL, Office; ability to obtain Interim Secret clearance; US citizen.

Python, Power BI, Microsoft Office, SQL, C, C#, Java