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Java Python Developer Jobs in Leonardtown, MD, US

400+ java python developer jobs from 160+ companies hiring in Leonardtown, MD, US.

409 jobs- Leonardtown • 50 miles
1mo
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SME Full Stack Developer - Java/Python , Clearance Required
Ashburn, Virginia, United States
HybridFull Time
SourceFly
SourceFly: We provide IT services and workforce solutions to government clients.
5+ YOE5+ years’ full-stack development with Java/Python; security clearance (Secret); government/military domain experience.
Java, Python, Spring Boot, Docker, Kubernetes, REST, React, Angular, Vue.js, Jenkins, Gitlab CI, Harness, gRPC, RabbitMQ, Kafka, AWS, PostgreSQL, Oracle, Elasticsearch, Solr, Hadoop, Spark
1w
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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
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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Software Engineer/Developer
Quantico or Gainesville
OnsiteFull Time
Redhorse
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
1mo
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Mid Level Developer
Rosslyn, Virginia, United States
OnsiteFull Time
ActioNet
ActioNet: Provides IT modernization and cybersecurity services for government agencies.
3+ YOE3–7 years software development; Bachelor's in CS/IT; Python/Java/C#; Agile/Scrum/SAFe; RESTful APIs; databases; security standards.
Python, Java, C#, REST, APIs, SQL, NoSQL, Agile, Scrum, SAFe, Cloud
2w
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Sr Software Engineer - Java/SpringBoot, Optum Technology - Remote
Minneapolis or Washington
$92k-$164k/yr RemoteFull Time
UnitedHealth Group
UnitedHealth GroupNYSE: UNH: Provides health insurance and technology-enabled health care services.
10+ YOE10+ years IT experience in application engineering and production operations; strong Java, REST, APIs, SQL; cloud and CI/CD experience; healthcare payer domain knowledge preferred.
IBM ODM, REST, GraphQL, Kafka, GitHub Actions, JFrog Artifactory, JUnit, SonarQube, CodeQL, MySQL, Kubernetes, Splunk, Dynatrace, Zabbix, Grafana, GitHub Copilot, Python, Power Automate, Microsoft Graph API, Java, Maven, XML, Microservices, CI/CD
1mo
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Senior Developer
Rosslyn, Virginia, United States
OnsiteFull Time
ActioNet
ActioNet: Provides IT modernization and cybersecurity services to government agencies.
7+ YOELead design and development of software; 7–12 years in software development; proficient in Python, Java, or C#; Agile, Scrum, and SAFe; strong leadership and API integration; cloud and big data experience preferred.
Python, Java, C#, Agile, Scrum, SAFe, Cloud, Big Data, API development, Microservices
5d
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Senior Software Developer
Fort Belvoir, Virginia, United States
OnsiteFull Time
Applied Research Associates
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
2w
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Sr Software Engineer - Java/SpringBoot, Optum Technology - Remote
Minneapolis or Washington, D.C.
$92k-$164k/yr RemoteFull Time
UnitedHealth Group
UnitedHealth GroupNYSE: UNH: Provides health insurance and technology-driven healthcare services.
10+ YOE10+ years IT experience; production software engineering; cloud, APIs, Java, SQL; CI/CD; US healthcare knowledge preferred.
Java, Maven, XML, REST, GraphQL, Kafka, GitHub Actions, Python, Power Automate, Microsoft Graph API, shell scripting, JUnit, MySQL, NoSQL databases, Kubernetes, Artifactory, CodeQL, SonarQube, Grafana, Dynatrace
2w
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Summer 2026 Software Developer Internship
Annapolis Junction, Maryland, United States
$26-$35/hr OnsiteInternship, Full Time
GDIT
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
1mo
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Software Developer
Dahlgren, Virginia, United States
OnsiteFull Time
Technical Intelligence Solutions
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
1w
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Software Developer
Springfield, Virginia, United States
OnsiteFull Time
ManTech
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
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Software Developer – Mid (Team 04)
Washington, District of Columbia, United States
$135k-$150k/yr OnsiteFull Time
Amentum
AmentumNYSE: AMTM: Provides engineering, technology, and mission support to government agencies.
5+ YOETop-Secret clearance, 5+ years of software development experience, Bachelor's degree or equivalent, strong backend development in Java/JavaScript/Go/Python/.NET, experience with frameworks and agile development.
Java, JavaScript, Go, Python, .NET, Spring, Nodejs, NestJS, Gin, Hibernate, Struts, Git, CI/CD, AWS, Jira, Confluence, Splunk, SAFe
1w
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Agile Developer, Cyber & Data Resilience
Washington, District of Columbia, United States
OnsiteFull Time
Kroll
Kroll: Provides global risk and financial advisory solutions.
12+ YOESenior Agile Developer with Java Spring Boot, Python, AWS; TS/SCI with FS Poly; 12+ years of software development; on-site SCIF at Fort Meade, MD.
Java, Spring Boot, Python, AWS, REST API, Kubernetes, Docker, GitLab, Maven, Ansible, Cypress, Cucumber, OpenSearch, ElasticSearch, MongoDB, DynamoDB, OAuth/OIDC, GitOps, CloudWatch, Lambda, Step Functions
1mo
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Software Developer
Springfield, Virginia, United States
$118k-$201k/yr OnsiteFull Time
BAE Systems
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
1mo
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Software Engineer
Quantico, Virginia, United States
$69k-$158k/yr HybridFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Provides technology and management consulting services to diverse organizations.
3+ YOEFull-stack development experience; Java, Python, C#, or C/C++; microservices; TS/SCI clearance; 3+ years of software development or 5+ years without a degree; cloud/DevOps knowledge.
Java, Python, C#, C/C++, .NET, JavaScript, React, Angular, NodeJS, PHP, Bash, Visual Basic, Groovy, Lua
1mo
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Software Engineer (HPC) Linux & Scripting Emphasis
Annapolis Junction, Maryland, United States
OnsiteFull Time
Interclypse
Interclypse: Provides software engineering and cybersecurity solutions for government agencies.
Develop, deploy, and maintain software in Linux environments; experience with Python/Java, DevOps, CI/CD, containers, and data engineering.
Linux, Bash, Python, Java, C, C++, Ruby, Perl, JavaScript, GitLab CI, Jenkins, Bamboo, Ansible, Docker, Kubernetes, Helm, Apache NiFi, Apache Spark, JSON, XML, CSV, Parquet, ActiveMQ, RabbitMQ, Kafka, MongoDB, PostgreSQL, MySQL, MariaDB, ElasticStack, Prometheus, Grafana, Jira, Confluence, Airflow, Vault, Keycloak, Slurm, Jupyter
2w
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Software Developer
Welcome, Maryland, United States
$75k-$102k/yr OnsiteFull Time
Space Ground System Solutions
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
2mo
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Junior CNO Developer (Onsite)
Annapolis Junction, Maryland, United States
OnsiteFull Time
Nightwing
Nightwing: Provides cybersecurity and intelligence solutions for government agencies.
1+ YOEBachelor's degree or 4 years of related experience; 1 year programming in Assembly, C, C++, Java, Perl, or Python; 1+ year development in Windows/.NET or UNIX environments.
Python, C, C++, Java, Perl, Assembly, PowerShell, Bash, Visual Studio, .NET, Git, IDA Pro, Ghidra, OllyDbg
1mo
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Full Stack Developer
Arlington or United States
$115k-$160k/yr RemoteFull Time
DocMe360
DocMe360: Delivering digital strategy and clinical AI solutions for government.
4+ YOE4–6+ years full stack exp; end-to-end enterprise app development; agile; frontend React/Sencha ExtJS; Python/Java; REST APIs; AWS; Docker; QA/healthcare domain knowledge.
React, Sencha Ext JS, Java, Python, Jakarta EE, WildFly, Quartz, JWT, FastAPI, REST API, AWS, Docker, Maven, Git, DataDog, DynaTrace, JUnit, Mockito
1mo
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Full Stack Developer
Springfield or Fairfax
OnsiteFull Time
ECS
ECSNYSE: ASGN: Provides advanced technology and engineering services to government agencies.
3+ YOEUS citizen with TS/SCI + CI Poly, 3-10+ years of software development and ETL experience; BS in CS/engineering or related field; strong Python/Java/JavaScript; AWS, Linux, containers; excellent communication.
Python, Java, JavaScript, C++, Bash, SQL, PostgreSQL, NoSQL, Elastic, Redis, Kafka, OpenTelemetry, Linux, AWS, Docker, Kubernetes, Helm, Rancher, OpenShift, GitLab, Jira
2mo
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Software Engineer, Mid
Fort Belvoir, Virginia, United States
$87k-$198k/yr HybridFull Time
Booz Allen
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
3w
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Spatial Front, Inc - Senior Application Developer
Suitland or United States
$90k-$138k/yr RemoteFull Time
Spatial Front
Spatial Front: IT solutions and mission support for government agencies.
7+ YOEBachelor’s degree in computer science or related field; 7+ years software development experience; strong Java, AWS, and microservices skills; experience with React, Python, and databases.
Java, AWS, Spring Framework, Hibernate, REST, PostgreSQL, Oracle Spatial, Python, React
1w
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Senior Software Engineer
Annapolis Junction, Maryland, United States
$212k-$265k/yr OnsiteFull Time
Boeing Intelligence & Analytics
Boeing Intelligence & AnalyticsNYSE: BA: Provides intelligence analytics and cyber solutions for national security.
14+ YOEActive TS/SCI with polygraph; Linux development; Python/C++/Java/JavaScript; Jira/Confluence; GitLab/GitHub; 14+ years experience; BS in Computer Science or related field.
Linux, Python, C++, Java, JavaScript, Jira, Confluence, GitLab, GitHub
2mo
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Associate Software Engineer
Arlington or Mount Laurel
$72k-$114k/yr OnsiteFull Time
Innovative Defense Technologies
Innovative Defense Technologies: Develops automated software integration and testing solutions for defense.
0+ YOE0–2+ years backend development; BS in a related field; proficient in Python/Java/C++/C#; ability to travel; knowledge of SDLC; APIs and databases; distributed systems; security practices.
Python, Java, C++, C#
1d
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EPM Software Developer
Herndon or Falls Church
$94k-$109k/yr HybridFull Time
General Dynamics Information TechnologyNYSE: GD: Provides mission-critical IT services to government and defense organizations.
2+ YOE2+ years related experience; Groovy scripting; JAVA/XML/XSD; Python/Perl; Oracle EPM; REST API; Linux/UNIX; cloud knowledge.
Groovy, Oracle EPM, Hyperion EPM, Java, XML, XSD, Python, Perl, REST API, Subversion, Git, JBuilder, Eclipse
2w
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Software Developer
Vienna, Virginia, United States
OnsiteFull Time
KBR
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
1mo
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Software Developer Applications
Washington, D.C. or Kansas City
$138k-$178k/yr HybridFull Time
iCallidus
iCallidus: Provides information technology and cybersecurity services to federal agencies.
3+ YOEBachelor's in CS/SE, 3+ years in federal/health IT; Java/C#/Python; HL7/FHIR; Cerner/EHRM experience preferred.
Java, C#, Python, HL7, FHIR, Cerner, Oracle Health
2mo
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Software Developer (Senior)
Washington, District of Columbia, United States
OnsiteFull Time
Dutch Ridge Consulting Group
Dutch Ridge Consulting Group: Provides technical support and IT solutions for government agencies.
7+ YOEUS citizen; Top Secret/SCI clearance; 7+ years experience; Python, Java, C++; Masters in CS/IS/Engineering/Business; significant equivalent experience accepted.
Python, Java, C++
1w
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GIS Developer Analyst (Key Personnel)
Washington or Albuquerque or Germantown or Denver
HybridFull Time
Data Systems Analysts
Data Systems Analysts: Provides IT and cybersecurity solutions for government agencies.
3+ YOEBachelor's degree in GIS/Geography/CS or related field; 3–5 years GIS development; Python/JavaScript/C#/Java; geospatial analysis; DOE Q clearance; emergency management experience preferred.
ArcGIS Pro, ArcGIS Online, Experience Builder, Survey123, Python, JavaScript, ArcPy, ArcGIS SDKs, C#, Java
2mo
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Senior Software Engineer
Annapolis Junction or Columbia
OnsiteFull Time
Freedom Technology Solutions Group
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
1w
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Senior Software Engineer
Annapolis Junction, Maryland, United States
$212k-$265k/yr OnsiteFull Time
Boeing Intelligence & Analytics
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
1mo
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Backend Developer
Springfield, Virginia, United States
OnsiteFull Time
Trinity Global Consulting
Trinity Global Consulting: Provides professional support services to US government agencies.
2+ YOEBachelor's in CS/Engineering/GIS or related field; 2+ years backend experience; Python/Node.js/Java; REST APIs; ArcGIS Enterprise; Docker/Kubernetes; API design; US Citizenship; Top Secret/SCI clearance eligibility.
Node.js, Python, Java, Docker, Kubernetes, ArcGIS Enterprise, REST APIs
1mo
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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
1mo
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Research Software Engineer, Formal Methods (Hybrid)
Cambridge or Arlington or Columbia
$87k-$165k/yr HybridFull Time
RTX
RTXNYSE: RTX: RTX provides advanced aerospace and defense systems and services.
5+ YOE5+ years of software development experience; strong Python and C/C++ or Java; experience with formal methods; security-focused; ability to obtain DoD Top Secret clearance.
Python, C, C++, Java, logic programming
2w
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Agile Developer 3
Annapolis Junction, Maryland, United States
OnsiteFull Time
Base-2 Solutions
Base-2 Solutions: Delivers engineering and technology services for national security.
7+ YOEActive TS/SCI with Full Scope Polygraph (CI Poly in last 7 years); 7-9 years experience; AWS tools; Java/Spring Boot or Python; microservices, CI/CD, and related tech.
Java, Spring Boot, Python, AWS, DynamoDB, Lambda, CloudWatch, Maven, GitLab, GitOps, Kubernetes, Docker, Ansible, Cypress, Cucumber
1mo
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Senior Software Engineer
King George, Virginia, United States
OnsiteFull Time
TMC Technologies
TMC Technologies: Provides engineering and IT services to government and defense clients.
7+ YOE7+ years in software development with C++, C, Python, Java, and experience with UNIX/Linux/VxWorks; DevSecOps, Agile/Safe; SCRUM; publish/subscribe middleware; model-driven architecture; software metrics; security clearance required; Bachelor’s degree.
C++, C, Python, Java, Batch, UNIX, Linux, VxWorks, publish/subscribe middleware, Model Driven Architecture, DevSecOps, Agile, SAFE, SCRUM
1mo
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Software Engineer - Hybrid
Annapolis Junction, Maryland, United States
$165k-$185k/yr HybridFull Time
Red Arch Solutions
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
1mo
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Senior Software Engineer - Developer Services
Maryland, Maryland, United States
HybridFull Time
T. Rowe Price
T. Rowe PriceNASDAQ: TROW: Global investment management firm providing funds and retirement services.
5+ YOE5+ years of total relevant experience; strong Java or Python; extensive AWS experience; microservices, REST APIs, CI/CD; Docker; OAuth2/OIDC/JWT; enterprise identity; strong problem-solving and communication.
Python, Java, Terraform, AWS, Docker, JSON/YAML, Git, CI/CD
2w
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Senior Software Engineer
Gambrills, Maryland, United States
$91k-$130k/yr HybridFull Time
Wabtec
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
2w
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Software Engineer - 90402844 - Washington DC, Philadelphia PA or Wilmington DE (US)
Washington or Wilmington or Philadelphia
$72k-$93k/yr OnsiteFull Time
Amtrak
Amtrak: Operates America's national intercity passenger railroad system.
1+ YOEBachelor’s degree or equivalent; 1+ year software engineering; Java, Python, SQL; frontend/backend development; CI/CD and cloud; onsite in DC/DE/PA.
Angular, React, Java, Python, SQL, NoSQL, AWS, Azure, CI/CD

HiringCafe market data

Java Python Developer Jobs market signals in Leonardtown, MD, US

These signals come from live HiringCafe job inventory, not a static article. Use them to compare the market, then open listings above to apply directly.

Open jobs
400+
Hiring companies
160+
Fresh sample
42% new in 30d
Salary visibility
61% show pay

Companies appearing in this market

ActioNetUnitedHealth GroupBooz Allen HamiltonBoeing Intelligence & AnalyticsAmentumECSGDITGeneral Dynamics Information Technology

Work location mix in visible results

Onsite: 65Hybrid: 27Remote: 9