305 senior java python developer jobs at 98 companies in Hanover, PA

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Senior Java Developer
Annapolis Junction, Maryland, United States
HybridFull Time
Base-2 Solutions
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
2w
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Senior Python Software Engineer
Laurel, Maryland, United States
$170k-$230k/yr OnsiteFull Time
GliaCell Technologies
GliaCell Technologies: Software and systems engineering for the intelligence community.
14+ YOEActive or rein-statable TS/SCI with Polygraph, U.S. citizenship, ~14 years experience (or BS plus 14 years / or 18 years in lieu of BS), strong Python and ML experience, Linux, Jira/Confluence, and security-cleared government contract experience.
Python, GM Learn, Jira, Confluence, Linux, Java, Scala, Lucene, JEXL, SQL, JSON, Ghostmachine, Jupyter Notebooks, IntelliJ, Eclipse, Git, Gitlab, Stash, Bitbucket, Scikit-learn, AWS, Spark
1w
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Sr Java Engineer
Annapolis Junction, Maryland, United States
$140k-$170k/yr OnsiteFull Time
ELEVI Associates
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
1w
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Senior Software Engineer (Java Developer)
Annapolis Junction or Reston or Maryland
$155k-$205k/yr RemoteFull Time
Crown Point Technologies
Crown Point Technologies: Provides data engineering and software development for government and commercial clients.
13+ YOE13+ years software development experience, strong Java and Python skills, experience with Apache Solr/Zookeeper/Tomcat and Oracle 19c, secure development practices, U.S. citizenship and ability to obtain TS/SCI clearance.
Java, Python, Apache Solr, Zookeeper, Apache Tomcat, Oracle 19c, Apache Directory Studio, SAP Business Intelligence, VMware, PrimeFaces
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Full Java Stack Developer
Annapolis Junction, Maryland, United States
$215k-$238k/yr OnsiteFull Time
Amentum
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
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Software Engineer 2 - Zabbix/Python/Java/CSC/Linux
Annapolis Junction, Maryland, United States
$130k-$270k/yr OnsiteFull Time
Captivation Software
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
2mo
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Senior Full Stack Java Software Engineer - Clearance Required
Annapolis Junction or Maryland or Texas
$151k-$266k/yr OnsiteFull Time
Lockheed Martin
Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.
20+ YOETS/SCI w/Poly clearance required. Bachelor’s in Computer Science (or equivalent) plus 20 years SWE experience (or +4 years experience in lieu). Must have Java, JavaScript, Python, CI/CD (Jenkins/GitHub/CodePipeline), Jira/Confluence, and AWS/serverless experience.
Java, JavaScript, Python, Jenkins, GitHub, CodePipeline, Jira, Confluence, AWS, API Gateway, Lambda, Secrets Manager, Parameter Store, Step Functions, DynamoDB, Aurora PostgreSQL, PostgreSQL, Angular, Vue
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Software Engineer, Level 1, Java Python AWS Services (AE26071026)
Annapolis Junction, Maryland, United States
$115k-$124k/yr OnsiteFull Time
Advantage Engineering & IT Solutions
Advantage Engineering & IT Solutions: Provides technical engineering and IT services for government agencies.
5+ YOE5 years SWE experience required, active Top Secret/SCI with polygraph, Bachelor’s in CS or equivalent, proficiency with Java/Python and AWS, ability to implement automated tests and prototype cloud solutions.
Java, Python, AWS
2w
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Software Engineer: Full Stack - Python, Java or JavaScript/TypeScript (TS/SCI Clearance Required)
Alexandria or Chantilly or Englewood or Gaithersburg or Saint Louis or Tucson
OnsiteFull Time
North Point Technology
North Point Technology: Technology services and engineering for federal government missions.
Active TS/SCI clearance with polygraph ability, Bachelor's in CS or related, proficiency in Python/Java/JavaScript/TypeScript, cloud (AWS/Azure), containers, CI/CD, databases, and secure coding practices.
Python, Java, JavaScript, TypeScript, HTML, CSS, JSON, AJAX, REST APIs, React, Angular, Vue.js, Node.js, Spring Boot, Django, Flask, AWS, Azure, MySQL, PostgreSQL, SQL Server, Linux, Windows, Git, GitLab CI, Jenkins, JIRA, Confluence, Docker, Kubernetes, RMF, STIGs, Go, OpenSearch, Elasticsearch, S3, EC2, SQS, SNS, RDS, CloudFormation, Terraform, Ansible, GeoServer, PostGIS, OGC APIs, ESRI ArcGIS
1mo
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Senior Software Developer (Hybrid)
Annapolis Junction, Maryland, United States
$77k-$206k/yr HybridFull Time
Nightwing
Nightwing: Provides advanced cyber and intelligence solutions for national security.
9+ YOE9+ years software development experience (strong in Python or Java), reverse engineering or LLM application development skills, familiarity with EM tooling and testing frameworks, BS in Computer Science or related field.
Python, Java, IDA, Ghidra, x86 Assembly, ARM Assembly, PPC Assembly, Langchain, LangGraph, LangSmith, JUnit, Pytest, gRPC, poetry, gradle, uv
2mo
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365-369 - Senior Software Engineer
Fort Meade or Linthicum
$191k-$214k/yr OnsiteFull Time
ARSIEM
ARSIEM: Provides cybersecurity and software engineering to government agencies.
8+ YOEActive TS/SCI with polygraph; US citizenship; Bachelor's degree plus 8 years of experience; strong Python/Java; PySpark, Kubernetes, Docker, Elasticsearch; AI/ML tooling; cloud-native platforms; governance and agile delivery.
Python, Java, PySpark, Jupyter Notebooks, Kubernetes, Docker, Elasticsearch, GHOSTMACHINE, Query Time Analytics, Git, GitLab, Hugging Face, Bailo, OpenAI, AWS Bedrock, AWS SageMaker, AWS EKS, React, EX, Terraform
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Java Software Engineer
Annapolis Junction, Maryland, United States
$147k-$249k/yr OnsiteFull Time
BAE Systems
BAE SystemsLondon Stock Exchange: BA: Provides advanced defense, aerospace, and security technology solutions.
Must hold TS/SCI with polygraph, bachelor's in CS or equivalent experience, experienced with Java/Python/C/C++, web and database technologies, Agile and TDD practices.
Java, Java Cryptographic Framework, Python, C/C++, SQL, SOAP, WSDL, WADL, XHTML, HTML, XML, XSLT, Windows, Linux, PERL, PowerShell, VBS, Eclipse, Postgres, Oracle, Jenkins, JEE, Tomcat, WebLogic, JBoss, FITNesse, Mockito, Cucumber, Unified Functional Tester (UFT), Selenium, SAFe
3w
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Senior Software Engineer
Annapolis Junction, Maryland, United States
$175k-$210k/yr HybridFull Time
Boeing Intelligence & Analytics
Boeing Intelligence & AnalyticsNYSE: BA: Delivers intelligence, analytics, and cyber solutions for national security.
14+ YOEActive TS/SCI with polygraph, Bachelor’s in CS or related with 14+ years experience, strong software development skills (Git, Java/C++,Python), Postgres, Jira/Confluence, Agile experience.
Git, Java, C++, Python, Postgres, Jira, Confluence, Amazon Web Services (AWS), Docker, Kubernetes, HAProxy, Nginx, Elastic Stack
1mo
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Senior Software Engineer
Annapolis Junction, Maryland, United States
$150k-$270k/yr OnsiteFull Time
Synergy ECP
Synergy ECP: Provides cybersecurity and systems engineering for defense agencies.
7+ YOEBachelor's in CS or related, 7+ years software development, proficiency in Java/Python/C++, system design and distributed systems experience; TS/SCI w/ Polygraph and U.S. citizenship required; cloud/Kubernetes experience preferred.
Java, Python, C++, AWS, Azure, Kubernetes
5d
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Senior Software Engineer (ML)
Columbia, Maryland, United States
OnsiteFull Time
BigBear.ai
BigBear.aiNYSE: BBAI: AI-powered decision intelligence for complex mission environments.
8+ YOEBachelor's in CS or related, 8+ years software development, TS/SCI with Poly clearance, proficiency in one or more languages (Java,C#,C++,Python,JavaScript,TypeScript), experience with SDLC and Agile.
Java, C#, C++, Python, JavaScript, TypeScript, AWS, Microsoft Azure, Google Cloud, Docker, Kubernetes
1mo
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Senior Software Engineer- Hybrid
Annapolis Junction, Maryland, United States
HybridFull Time
Envision Innovative Solutions
Envision Innovative Solutions: Provides technical engineering and mission support to government agencies.
14+ YOE14+ years software engineering experience; strong Java, Python, or C++ skills; PostgreSQL and complex SQL query experience; AWS and Git experience; Agile development; TS/SCI with Full Scope Polygraph required.
Java, Python, C++, PostgreSQL, SQL, Amazon Web Services (AWS), Git
2mo
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Full Stack Developer - TS/SCI w/Poly
Annapolis Junction, Maryland, United States
$155k-$175k/yr OnsiteFull Time
MKS2 Technologies
MKS2 Technologies: Delivers cybersecurity and IT solutions to government agencies.
8+ YOESenior Full-Stack Developer with Python and Java; TS/SCI with Poly; Bachelor's degree plus 8 years of experience; proficient in Python, Java, and Jupyter; knowledge of Tableau and Atlassian tools.
Python, Java, Jupyter, Tableau, Atlassian
3w
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Senior Software Engineer
Aberdeen, Maryland, United States
$90k-$198k/yr OnsiteFull Time
CGI
CGINYSE: GIB: Provides information technology and business consulting services.
10+ YOE10+ years software engineering experience in Defense, BA/BS or equivalent experience, proficiency with C++, Java, Python, C#, secure coding and Defense standards, DoD cybersecurity certification preferred.
C++, Java, Python, C#, Git, SVN, CI/CD, automated testing tools
3mo
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Senior Staff Engineer - Financial Substantiation Platform *Hybrid*
Bethesda or Dallas or Washington or Falls Church or Baltimore or Seattle
$120k-$260k/yr HybridFull Time
GEICO
GEICO: Provides vehicle and property insurance services to consumers.
10+ YOESenior software engineer with 10+ years, architecture leadership, distributed systems, cloud, and data-focused reconciliation platforms. Strong collaboration with Finance, Compliance, and Product.
Java, C#, Go, REST, gRPC, SQL, AWS, Azure, GCP, CI/CD, Containers, IaC, DevOps, Kubernetes, Kafka, Snowflake, Airflow, Python, PySpark, Snowpark
1mo
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Senior Software Developer (Systems Software)
Columbia or Fort Meade
$146k/yr OnsiteFull Time
Endictus
Endictus: Provides cybersecurity and systems engineering services to federal agencies.
10+ YOEActive TS/SCI with CI Polygraph; degree in CS or related field; extensive systems software and CNO experience; proficiency in C/C++, Java or Python; strong OS, networking, distributed systems, and software engineering skills.
C, C++, Java, Python