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Java Python Developer Jobs in Hagerstown, MD, US
97 java python developer jobs from 49 companies hiring in Hagerstown, MD, US.
1mo
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Java/ETL Developer - TS/SCI with Polygraph
Herndon, Virginia, United States
$174k-$236k/yr OnsiteFull Time
8+ YOE8+ years of data engineering/ETL experience; TS/SCI with Polygraph; US citizenship; Bachelor's in Engineering or related field (or equivalent).
Java, XML, JSON, Python, Oracle, MySQL, Tableau, Elasticsearch, ArcGIS, Windows, Linux, Git, GitHub, GitLab, Jenkins, NiFi, Pentaho, FME, SAFE, ETL
1mo
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Java/ETL Developer - TS/SCI with Polygraph
Herndon, Virginia, United States
$174k-$236k/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 with Polygraph; Java/ETL, data engineering, ETL, SQL; Bachelor's degree or equivalent; US citizenship.
Java, XML, JSON, Python, Oracle, MySQL, Tableau, Elasticsearch, ArcGIS, Windows, Linux, GitHub, GitLab, Jenkins, NiFi, Pentaho, FME, SAFE
3w
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Senior Application Developer (Java/Angular)
Ashburn, Virginia, United States
HybridFull Time
7+ YOEBachelor’s degree and 7+ years in Java applications with Spring, Agile, Jira; Oracle/PostgreSQL; unit tests; strong communication; hybrid Ashburn onsite.
Java, Angular, Spring, Spring Boot, AWS, Jira, Git, Bamboo, Jenkins, SonarQube, Docker, Kubernetes, Hibernate, MyBatis, JMS, Python, Kafka, Linux
1mo
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Web Application Developer Senior
Winchester, Virginia, United States
OnsiteFull Time
2+ YOEBachelor's degree; TS/SCI clearance; 2+ years in AWS/C#/Java/Python; web app development.
AWS, C#, Java, Python
1mo
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Software Developer - Top Secret
Winchester, Virginia, United States
OnsiteFull Time
Develop and maintain software in an Agile/SAFe environment; AWS/C#/Java/Python experience; secure federal systems; strong OO design and version control.
C#, Java, Python, AWS, Git
2mo
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Application Developer I
Rockville, Maryland, United States
$65k-$82k/yr OnsiteFull Time
2+ YOEBachelor's in related field or equivalent experience; 2+ years software development; proficient in Java, JavaScript, HTML, CSS, SQL, Python; ML frameworks; Google Suite; grocery retail experience.
Java, JavaScript, HTML, CSS, SQL, Python, Machine Learning frameworks, Google Suite, Microsoft Office, Mac OS, Windows OS
2w
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Data Engineer
Carlsbad or Germantown or Englewood or Tempe
$136k-$253k/yr OnsiteFull Time
5+ YOE5+ years software development with Java/Scala/Python/C/C++. SQL knowledge. Linux, Docker, Git/CI-CD. Cloud (AWS/GCP/Azure). BS in a related field.
Java, Scala, Python, C/C++, Linux, Docker, Git, CI/CD, PostgreSQL, MySQL
2w
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Applications Developer (Full Stack Developer - Senior)
Herndon, Virginia, United States
OnsiteFull Time
4+ YOESenior-level developer with active TS/SCI with Full Scope Polygraph; 4+ years web app experience; strong Python/Java/JS/C# OO skills; cloud and Linux experience;Bachelor's degree or 11 years experience without degree.
Angular, React, JavaScript, Python, Java, C#, Linux, AWS, Azure, Oracle Cloud, Docker, Podman, Jira, Confluence, GitHub
1w
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NLM Software Developer
Rockville, Maryland, United States
$118k-$136k/yr OnsiteFull Time
6+ YOESix-plus years in software development; full SDLC; proficiency in C++, Python, Java, JavaScript, R, Bash; databases MySQL/PostgreSQL/MongoDB/ElasticSearch; tools like Jupyter, GitHub, GitLab, CI/CD; Agile/Scrum; strong communication and documentation.
C++, Python, Java, JavaScript, R, Bash, MySQL, PostgreSQL, MongoDB, ElasticSearch, Jupyter Notebooks, GitHub, GitLab, CI/CD
1w
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Lead Software Engineer
Rockville or Tysons
$114k-$249k/yr HybridFull Time
7+ YOELead software engineer with Java, AWS, Python, and strong system design experience.
Spring Boot, Java, Python, REST, GraphQL, Microservices, AWS, PostgreSQL, MySQL, MongoDB, Cassandra, Neo4j, Amazon Neptune, S3, Lambda, SQS, SNS, ECS, Fargate, Aurora, CI/CD
1w
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GIS Developer Analyst (Key Personnel)
Washington or Albuquerque or Germantown or Denver
HybridFull Time
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
2w
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Data Engineer
Carlsbad or Germantown or Englewood or Tempe
$141k-$222k/yr OnsiteFull Time
5+ YOE5+ years software development with Java/Scala/Python/C/C++, SQL DBMS, Linux, Docker, Git/CI/CD; cloud familiarity (AWS/GCP/Azure); strong analytical skills; BS in a related field; US citizenship required; travel up to 10%
Java, Scala, Python, C, C++, PostgreSQL, MySQL, Oracle, Linux, Docker, Git, CI/CD, AWS, GCP, Azure, Kafka, Spark
5d
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Senior Software Engineer - APIs
Ashburn, Virginia, United States
$120k-$145k/yr RemoteFull Time
5+ YOE5+ years Java 8+ with Spring; AWS; SQL; Snowflake; Scala/Python; web services; GA/DG experience; English fluency.
Java, Spring Framework, AWS, SQL, Snowflake, Scala, Python, JSON, GeoJSON, Git, Unit testing, Docker, Kubernetes
4w
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Senior Software Engineer (Big Data)
Herndon, Virginia, United States
OnsiteFull Time
TS/SCI clearance with polygraph preferred; BS in CS/Engineering or related field; strong full stack development; big data tech (Hadoop, Spark, Kafka); Java/Python/C#; APIs and microservices; strong problem-solving; able to work independently (IC)
Java, Python, C#, Hadoop, Apache Spark, Kafka, APIs, Microservices, REST
2w
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Jr. Application Developer
Herndon, Virginia, United States
OnsiteFull Time
4+ YOEActive TS/SCI clearance with Poly; 4-6 years web app experience; Angular/React/JavaScript; Linux; cloud services (AWS, Azure, Oracle Cloud); Java, Python, JavaScript, CSharp; microservices with Docker/Podman; strong UI/UX and Agile experience.
Angular, React, JavaScript, Java, Python, CSharp, Linux, AWS, Azure, Oracle Cloud, Docker, Podman, Containerization
5d
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Backend Software Engineer
Gaithersburg or Alexandria or Chantilly or St. Louis or Tucson
OnsiteFull Time
8+ YOEUS citizen; TS/SCI with poly; BS in CS/SE with 8–12 yrs (MS with 6–10); Java or Python; REST APIs; SQL; Linux; ability to work independently.
Java, Python, REST, SQL, Linux, Apache Airflow, Spring Boot, Django, GitLab, Jenkins, Docker, OpenShift, AWS, Azure, Agile
1mo
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Software Engineer SME
Herndon, Virginia, United States
$50k-$290k/yr OnsiteFull Time
The Swift Group: Providing engineering and cybersecurity services for national security missions.
10+ YOE10+ years backend software/platform experience; strong Java, Ansible/Python, Postgres/MySQL/MariaDB, Linux, AWS; microservices and RESTful APIs; cloud deployment; containerization; Git workflows; TS/SCI with Poly clearance required; BSCS or equivalent.
Java, Ansible, Python, PostgreSQL, MySQL, MariaDB, Linux, AWS, Git, GitLab, GitHub
23h
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CUAS SW Engineer
United States or Summit Point
$88k-$155k/yr RemoteFull Time
5+ YOE5+ years' software engineering experience; Bachelor's in CS/engineering/math or related field or equivalent; active Secret clearance; Java; APIs; AI/ML; Python/C++; Docker; Git; Agile tooling.
Java, APIs, Ansible, Docker, React, Git, CMake, Confluence, JIRA, Python, C++, AI/ML
5d
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Software Engineer SME (TS/SCI with Poly Required)
Dulles, Virginia, United States
$187k-$318k/yr OnsiteFull Time
15+ YOE15+ years in software engineering; TS/SCI with poly; US citizenship; BA/BS; experience with Java/Spring, Python, React, databases, AWS.
Java, Spring, Spring Boot, Spring Security, Python, JavaScript, TypeScript, React, Elasticsearch, PostgreSQL, MySQL, PL/SQL, AWS, Git, Jenkins, CI/CD, REST APIs, MQ, Service Bus
1mo
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Staff Engineer Software
Dulles, Virginia, United States
OnsiteFull Time
12+ YOEBachelor's with 12 years or Master 10 years or PhD 7 years; active DoD Top Secret clearance; strong experience in C/C++, Java, Python; Docker/Kubernetes; Linux; CI/CD; Agile; prior leadership.
C/C++, Java, Python, Docker, Kubernetes, Linux, Jenkins, GitLab
2w
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Junior Palantir / Maven Product Engineer
Herndon, Virginia, United States
OnsiteFull Time
3+ YOEBachelor’s degree in CS/Engineering/Data Science or related field; 1–3 years software/data engineering; Python/Java/Go/TypeScript; cloud infra AWS/Azure/Kubernetes; secure environments; Secret clearance; TS/SCI eligibility.
Python, Java, Go, TypeScript, AWS, Azure, Kubernetes
2mo
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Software Engineer- AI
Herndon or Cincinnati or North Carolina or Georgia or Texas or New Jersey or Pennsylvania or Illinois or District of Columbia or Maryland or Ohio or Florida or South Carolina or Colorado or Indiana
HybridFull Time
2+ YOE2+ years hands-on software engineering; shipping full systems; proficient in Angular/TypeScript, .NET/C#, Python, Java; 1+ year cloud-native (Azure); comfortable across stack; regulated environments experience.
Angular, TypeScript, .NET/C#, Python, Terraform, Bicep, Azure Gov, CI/CD
1w
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Senior Engineer-5
Bethesda, Maryland, United States
$105k-$215k/yr HybridFull Time
4+ YOE4+ years software development; strong experience with C#, Java, TypeScript, JavaScript, Python, or Golang; microservices architecture; cloud (AWS, GCP, Azure); DevOps; security; CI/CD; containers (Docker, Kubernetes).
Python, C#, TypeScript, JavaScript, Java, Golang, Docker, Kubernetes, Terraform, Azure, AWS, GCP
1w
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Gen AI Developer
Ashburn or United States
$115k-$252k/yr HybridFull Time
10+ YOE5+ years full stack dev with Python/JS, strong AI/ML, cloud (AWS/Google), REST APIs; US citizenship; hybrid work in Ashburn, VA.
React, Angular, Python, Java, JavaScript, TypeScript, SQL, NoSQL, AWS, Google Cloud, REST APIs, CI/CD, DevSecOps
4w
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SolrCloud Backend Engineer
Rockville, Maryland, United States
$130k-$150k/yr RemoteFull Time
7+ YOE7+ years backend engineer with SolrCloud; Java/Spring experience; REST, Lucene, NLP, ML basics; Linux; DevOps tools.
SolrCloud, Lucene, Spring, Spring Boot, Java, Groovy, Python, XSLT, XML, REST, SolrJ, Prometheus, Grafana, Jenkins, Maven, Ansible, Nexus, NLP, TDD, BDD, Git, GitLab, JMeter
2w
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Senior Full Stack Developer
Herndon, Virginia, United States
OnsiteFull Time
10+ YOESenior full stack developer with 10+ years of software development, AI/ML exposure, and ability to lead modernization efforts.
Java, Python, Node.js, JSP, Tomcat, jQuery, SQL, ETL, APIs, CI/CD, Cloud
1mo
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Software Engineer (Salesforce)
Sterling, Virginia, United States
OnsiteFull Time
5+ YOE5+ years Salesforce development, full-stack, AWS DevOps, Kubernetes, CI/CD, GitHub, Health Cloud; TS/SCI with poly required.
Salesforce, Apex, Visualforce, JavaScript, Python, Java, AWS, Kubernetes, GitHub, CI/CD, Serverless, Health Cloud
6d
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AI Full Stack Engineer – Agentic Systems & Ontology
Bethesda or Grand Prairie or King of Prussia or Littleton or Moorestown or Orlando
$109k-$217k/yr RemoteFull Time
Full-stack development with Python and JS frameworks; knowledge graphs and ontologies; LLM/GenAI experience; cloud and on-prem; US citizenship; degree in CS/IT/Engineering/AI/ML or related.
Python, Java, C++, Go, JavaScript, React.js, Angular, REST, OpenAPI, JSON-Schema, GitOps, Cloud, AWS, RDS, PostgreSQL, Bedrock, EC2, S3, Knowledge Graphs, Ontologies, KG tools, Pydantic AI, LangChain, LangGraph, Terraform, Ansible, CI/CD, GitLab, Jenkins, Kubernetes, OpenShift, Vector Databases, Semantic Search, RDF, OWL, SPARQL, Ontop
2mo
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Application Developer I
Rockville, Maryland, United States
$65k-$82k/yr OnsiteFull Time
2+ YOEBachelor's in related field or equivalent experience; 2+ years in application/software development; strong coding skills; experience with Google Suite, MS Office, Mac OS and Windows; prior grocery retail exposure; detail-oriented with good communication; able to manage changing priorities.
Java, JavaScript, HTML, CSS, SQL, Python, Machine Learning frameworks, Prompt engineering, Google Workspace, Microsoft Office, Mac OS, Windows OS
2mo
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Machine Learning Engineer
Herndon, -, United States
OnsiteFull Time
Experienced ML engineer with SQL/ETL, APIs, Python/Java/Scala, AWS, Hadoop, data visualization, and ML/AI tools experience.
SQL, Python, Java, Scala, ETL, APIs, AWS, Hadoop, Tableau, Bluescape, SharePoint, Tableau
2w
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Software Engineer
Herndon, Virginia, United States
$104k-$166k/yr OnsiteFull Time
3+ YOEBachelor's with 5 yrs or Master's with 3 yrs; 2+ yrs Java; 3+ yrs Python; 2+ yrs SQL; 2+ yrs Shell Script; 2+ yrs Unix/Linux; TS/SCI with poly.
Java, Python, SQL, Shell Script, Unix/Linux, Kubernetes, NiFi, JavaScript
3mo
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Software Engineer, DevSecOps
Ashburn, Virginia, United States
$130k-$180k/yr OnsiteFull Time
12+ YOE12+ years in software engineering with 3+ years in architecture/leadership; strong backend (Java/Python/Node.js) and frontend (React/Next.js); distributed systems; Docker/Kubernetes; AWS/GCP; CI/CD; DevSecOps; mentoring.
Docker, Kubernetes, AWS, GCP, Terraform, Pulumi, CloudFormation, GitHub Actions, GitLab, Junit, PyTest, Jest
3w
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Platform Engineer Intern - Hybrid
Herndon, Virginia, United States
HybridInternship
0+ YOEPursuing a Bachelor’s or Master’s in CS/IT or related field; strong IAM knowledge; experience with Microsoft Entra ID, Azure B2C, or AWS IAM; scripting in Python/Java/Go.
Microsoft Entra ID, Azure B2C, AWS IAM, Python, Java, Go, GitHub, Terraform, PowerShell
1mo
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Systems Engineer
Fairfax or Ashburn
HybridFull Time
Bachelor's degree in a technical field; experience with software requirements, design, and Agile; strong communication; eligibility for public trust clearance.
C++, Java, Python, RHEL
1mo
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Software Engineer
Chantilly or St. Louis or Gaithersburg or Denver
OnsiteFull Time
6+ YOESenior software engineer with 6+ years of experience; strong full-stack skills; cloud experience; DevSecOps focus; security clearance.
Python, Java, JavaScript, HTML, CSS, REST APIs, React, Angular, Vue.js, Node.js, Django, Flask, Docker, Kubernetes, AWS GovCloud, C2S, Azure, MySQL, PostgreSQL, SQL Server, Git, Jenkins, SonarQube, Nexus, Terraform, Keycloak, Vault, ArcGIS, OpenSearch, Elasticsearch
1w
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Mid-level Full Stack Software Engineer
Herndon or Westminster
$125k-$145k/yr OnsiteFull Time
8+ YOEUS citizen with TS/SCI poly; 8+ years in frontend and backend development, REST APIs, databases; able to work with distributed teams.
React, Angular, Vue, Python, Java, JavaScript, Node.js, REST, SQL, NoSQL, Linux, Kubernetes, Spark, Hadoop, Kafka, NiFi, Airflow, OpenStack, AWS, Azure, GCP, CI/CD
1mo
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SLCM-N Modeling & Simulation Engineer
Rockville, Maryland, United States
$97k-$165k/yr OnsiteFull Time
4+ YOEBachelor’s degree and 4+ years experience; proficiency in C++, Python, Java, MATLAB; experience with simulation tools; systems engineering; IT enterprise knowledge; strong collaboration and documentation skills.
C++, Python, Java, MATLAB, Simulink
3w
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Intern- Software Engineer
Herndon, Virginia, United States
$25/hr HybridInternship
0+ YOEPursuing a Bachelor's degree in Computer Science or Engineering; strong programming skills; knowledge of databases; AI/ML fundamentals; good communication; eager to learn.
Java, Python, JavaScript, C#, SQL, NoSQL, HTML, CSS, GitHub Copilot, ChatGPT, Claude
2mo
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Sr Applications Database Engineer/Applications System Administrator
Rockville, Maryland, United States
$90k-$110k/yr OnsiteFull Time
Senior AI/ML engineer with healthcare data expertise (HL7/FHIR), cloud (AWS), Python/R/Java, GenAI, LangChain; experience with NLP/CV and HIPAA compliance.
Python, R, Java, AWS, Docker, Kubernetes, PyTorch, TensorFlow, scikit-learn, HL7, FHIR, LangChain, VectorDBs, RAG
2mo
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Eng Sr Prin II - SW
Herndon, Virginia, United States
$147k-$249k/yr OnsiteFull Time
16+ YOESenior software developer with cloud, DevOps, and full-stack experience; strong Java/C#, React/Node.js, and automation skills.
AWS, Azure, Google Cloud, Oracle, Jira, GitHub, Jenkins, Python, PowerShell, Java, C#, TypeScript, React, Node.js, .NET
HiringCafe market data
Java Python Developer Jobs market signals in Hagerstown, 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
97
Hiring companies
49
Fresh sample
54% new in 30d
Salary visibility
60% show pay
Companies appearing in this market
ViasatCACIECSLockheed MartinNorthrop GrummanBAE SystemsGDITGeneral Dynamics Information Technology
Work location mix in visible results
Onsite: 46Hybrid: 16Remote: 5