Greenbelt • 50 milesRemote · Hybrid · Onsite · Field · All Environments

2,044 java python developer jobs at 421 companies in Greenbelt, MD

1mo

Save

Mark Applied

Hide

1mo

UI Java/Python Developer, Mid-Level TS/SCI with Poly REQUIRED

Arlington, Virginia, United States

$101k-$246k/yr HybridFull Time

CGINYSE: GIB: Provides information technology and business consulting services.

5+ YOETS/SCI with CI Poly clearance, Bachelor's degree or 5+ years experience, 5–8 years preferred, proficiency in Java or Python, UI design, user research, prototyping, and strong communication skills.

PenPot, Adobe Creative Cloud, Java, Python

Job Posting View all

Save

Mark Applied

Hide

Java Developer

Vienna, Virginia, United States

$150k-$220k/yr HybridFull Time

Koniag Government Services: Providing technical and professional services to federal agencies.

4+ YOEMinimum 4 years software development experience, TS/SCI clearance required, proficiency with Java, JavaScript, XQuery, Python, SQL and AWS; bachelor\u0002s degree in related field.

Java, JavaScript, XQuery, Python, HTML, SQL, NoSQL, AWS

Job Posting View all

Save

Mark Applied

Hide

Senior Java Developer

Annapolis Junction, Maryland, United States

HybridFull Time

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

9+ YOEExpert enterprise Java and Python development experience, Solr/ZooKeeper, Tomcat, Oracle 19c, VMware/Windows, secure coding for government environments, plus large-system upgrade and Solr index migration experience.

Apache Solr, ZooKeeper, Apache Tomcat, Apache Directory Studio, Java, Python, Oracle 19c, SAP Business Intelligence, PrimeFaces, VMware, Windows

Job Posting View all

Save

Mark Applied

Hide

Java Developer

Annapolis Junction, Maryland, United States

OnsiteFull Time

Gigatec: Providing systems engineering and software development services for defense.

U.S. work authorization required; Top Secret clearance and favorable polygraph required; experience with Java, Spring, containers, Kubernetes, CI/CD, Linux, Bash, Python, MongoDB, messaging systems; strong communication and problem-solving skills.

Linux CLI, Bash, Python, Java, Spring Framework, Spring Boot, Spring Data, Spring Integration, MongoDB, Docker, containerd, Kubernetes, RabbitMQ, Kafka, Bamboo, GitLab CI, Ansible, Git, Jira, Confluence, Helm

Job Posting View all

2mo

Save

Mark Applied

Hide

2mo

Python Developer (Mid-Senior)

Chantilly, Virginia, United States

OnsiteFull Time

JTEC Consulting: Provides IT services to federal clients.

10+ YOE10+ years Python development; FastAPI; AWS; TS/SCI with polygraph; U.S. citizenship; Bachelor's degree or equivalent experience; on-site in Chantilly, VA.

Python, FastAPI, SQLAlchemy, AWS, Kubernetes, Jenkins, GitHub, OpenSearch, Elastic, Airflow, PySpark, Trino, Linux, Docker, Helm, Makefiles, Java, Perl, C, C++, HTML, JavaScript, JSON

Job Posting View all

Save

Mark Applied

Hide

Java Developer

McLean, Virginia, United States

$160k-$200k/yr OnsiteFull Time

Bcore: Bcore provides advanced engineering, cloud, and data intelligence solutions.

Experience with Python scripting, cloud development/architecture, Flask, semantic search apps, and Tableau; eligible for TS/SCI with polygraph.

Python, Flask, Tableau

Job Posting View all

Save

Mark Applied

Hide

Sr Java Engineer

Annapolis Junction, Maryland, United States

$140k-$170k/yr OnsiteFull Time

ELEVI Associates: Provides cyber security and IT engineering for federal agencies.

13+ YOETS clearance or clearable, 13+ years systems/IT experience, enterprise Java and Python expertise, Apache Solr/Zookeeper, Tomcat, Oracle 19c, SAP BI, secure coding and VMware experience.

Java, Python, Apache Solr, Zookeeper, Apache Tomcat, Apache Directory Studio, Oracle 19c, SAP Business Intelligence, VMware, PrimeFaces, Windows

Job Posting View all

Save

Mark Applied

Hide

Java Developer

Reston or Annapolis Junction or Washington

OnsiteFull Time

Integrity Technology Consultants: Provides engineering and management consulting solutions to US national security.

13+ YOETS/SCI with polygraph, 13+ years in systems/IT, expertise in enterprise Java and Python, Apache Solr/Zookeeper, Tomcat, Oracle 19c, SAP BI, VMware, and secure coding for government environments.

Apache Solr, Zookeeper, Apache Tomcat, Apache Directory Studio, Java, Python, Oracle 19c, SAP Business Intelligence, VMware, PrimeFaces

Job Posting View all

2mo

Save

Mark Applied

Hide

2mo

Mid Level Python Developer/DEVOPS

Bethesda, Maryland, United States

OnsiteFull Time

Futrend Technology: Provider of IT solutions and consulting for federal agencies.

3+ YOE3+ years software engineering; 5+ years full-stack; strong Python/Java/Node.js; React/Angular frontend; AWS, MongoDB, SQL databases; DevOps and IaC; NIH security requirements; Public Trust eligibility.

Python, Django, FastAPI, Java, Spring Boot, Node.js, React, Angular, TypeScript, HTML, CSS, JavaScript, Git, AWS, MongoDB, PostgreSQL, Oracle, MySQL, Selenium, PyTest, JUnit, Jest, Docker, Kubernetes, Terraform, CloudFormation, OAuth2, SSO, Zero Trust

Job Posting View all

Save

Mark Applied

Hide

Full Stack Developer (Python / Java / Angular / AWS)

United States or Suitland

RemoteFull Time

Ignite IT: Provides digital transformation and cloud solutions to federal agencies.

7+ YOEU.S. citizen able to obtain CBP Public Trust, Bachelor's or equivalent, 7+ years development experience, expertise with Python, Java, Spring Boot, Angular, AWS, RESTful APIs, microservices, containers, and Git.

Python, Java, Spring Boot, Angular, TypeScript, JavaScript, HTML/CSS, PostgreSQL, AWS, Microservices Architecture, Linux, Git, Angular Material, NGRX, NGXS, Kafka, ETL tools, DevOps and CI/CD pipelines, Automated testing frameworks, UML

Job Posting View all

1mo

Save

Mark Applied

Hide

1mo

Java Software Engineer with Python experience

Fort Meade or Hanover

OnsiteFull Time

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

4+ YOETS/SCI with polygraph required; strong Java and Python experience; bachelor's in Computer Science or 4 years SWE experience substitute; database/query skills, debugging, integration, and Agile familiarity.

Java, Python

Job Posting View all

Save

Mark Applied

Hide

Principal Python Software Engineer

Laurel, Maryland, United States

$200k-$280k/yr OnsiteFull Time

GliaCell Technologies: Software and systems engineering for the intelligence community.

20+ YOEActive or rein-statable TS/SCI with Polygraph, U.S. citizenship, ~20 years experience (or equivalent), strong Python and ML experience, familiarity with Jira/Confluence/Linux, excellent communication.

Python, GM Learn, EDA, Jira, Confluence, Linux, Java, Scala, Lucene, JEXL, SQL, JSON, Ghostmachine (Map/Reduce), Jupyter Notebooks, IntelliJ, Eclipse, Git, GitLab, Stash, Bitbucket, Scikit-learn, AWS, Spark

Job Posting View all

2mo

Save

Mark Applied

Hide

2mo

Java Software Engineer (2026-0130)

Bethesda, Maryland, United States

$180k/yr OnsiteFull Time

Acclaim Technical Services: Provides language and intelligence services to U.S. federal agencies.

6+ YOEExperience with Java, SpringBoot, Hibernate; TS/SCI clearance with polygraph; DevOps tools; Agile; cloud; JUnit/Katalon; Python/Bash.

Java, Spring, Hibernate, Junit, Katalon, Python, Bash, Git, Jenkins, JIRA, Confluence, AWS, Google Cloud, Azure

Job Posting View all

2mo

Save

Mark Applied

Hide

2mo

Cloud Java /GUI Developer

Annapolis Junction, Maryland, United States

OnsiteFull Time

Entegra Systems: Provides engineering and intelligence analysis for government missions.

8+ YOEBachelor's degree in computer engineering or related field; 8 years software engineering; 3+ years in SIGINT/IA/IT; TS/SCI with poly; GUI, Java, Python; cloud experience (AWS).

Java, Python, AWS, Linux, APIs, GUI development

Job Posting View all

Save

Mark Applied

Hide

Lead Java Software Engineer - Developer (Virtual)

Herndon, Virginia, United States

$212k-$286k/yr RemoteFull Time

BoeingNYSE: BA: Designs and manufactures aircraft, defense systems, and space technology.

10+ YOERequires active Top Secret clearance, 10+ years Java/C++/web development experience, Bachelor's degree or equivalent, experience with cloud, software configuration management, and mentoring/leading teams.

Java, C++, Angular, ReactJS, HTML, CSS, python, CI/CD, P6, Windows, Linux

Job Posting View all

Save

Mark Applied

Hide

Lead Java Software Engineer - Developer (Virtual)

Herndon, Virginia, United States

$212k-$286k/yr RemoteFull Time

BoeingNYSE: BA: Designing and manufacturing commercial aircraft and defense systems.

10+ YOEActive U.S. Top Secret clearance, bachelor’s degree or equivalent,10+ years Java/C++/web development, cloud and software configuration management experience, strong architecture and leadership skills.

Java, ReactJS, python, CI/CD, Angular, React.js, C++, HTML, CSS, Windows, Linux, P6

Job Posting View all

1mo

Save

Mark Applied

Hide

1mo

Senior Full Stack Developer (Python/Java/Angular)

Ashburn, Virginia, United States

$112k-$179k/yr HybridFull Time

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

7+ YOEU.S. citizenship and Public Trust eligibility; 7+ years technical experience; strong Python, PostgreSQL, Java Spring Boot, Angular, microservices, and AWS experience; containerized Linux and Git familiarity.

Python, PostgreSQL, Java, Spring Boot, Angular, TypeScript, Angular Material, JavaScript, CSS, HTML, AWS, Git, MySQL, SQL, Kafka, NGRX, NGXS, UML, Linux, microservices architecture, RESTful services

Job Posting View all

1mo

Save

Mark Applied

Hide

1mo

Full Java Stack Developer

Annapolis Junction, Maryland, United States

$215k-$238k/yr OnsiteFull Time

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

14+ YOETS/SCI with polygraph required. Bachelor’s in Computer Science (or 4 yrs SWE experience) plus 14 years SWE experience. Must have Enterprise Java, SOA, microservices, Mongo/MySQL, Python, and Agile/DevOps experience.

Java, Python, Mongo, MySQL, IntelliJ, Eclipse, VS Code, Jira, Confluence, Gitlab, Docker, Kubernetes, NumPy, pandas, ISLANDTRANSPORT, JICD

Job Posting View all

2mo

Save

Mark Applied

Hide

2mo

Java Software Engineer

Laurel or Fort Meade

OnsiteFull Time

Orbis Operations: Defense and intelligence firm providing situational awareness and training.

5+ YOETS/SCI with poly, Bachelor's or Master's in CS, 5-10+ years SWE, Unix/Linux, Java, Spring, SQL/NoSQL, Docker, CI/CD, web frontend basics.

Unix, Bash, Python, Java, Spring, SQL, NoSQL, MongoDB, Docker, CI/CD, GitLab CI, Jenkins, Web Services

Job Posting View all

1mo

Save

Mark Applied

Hide

1mo

Software Engineer 2 - Zabbix/Python/Java/CSC/Linux

Annapolis Junction, Maryland, United States

$130k-$270k/yr OnsiteFull Time

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

14+ YOEMust hold Top Secret/SCI with favorable Polygraph and be a U.S. citizen; 14 years software engineering experience; Bachelor's degree; experience with Zabbix, Python, Java, CSC, and Linux.

Zabbix, Python, Java, CSC, Linux

Job Posting View all