📣 HiringCafe is hiring a Founding Growth Hacker! Learn More · Apply here
Java Python Developer Jobs in Halfway, MD, US
110+ java python developer jobs from 54 companies hiring in Halfway, MD, US.
1mo
Save
Mark Applied
Hide
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
Save
Mark Applied
Hide
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
Save
Mark Applied
Hide
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
Save
Mark Applied
Hide
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
Save
Mark Applied
Hide
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
6d
Save
Mark Applied
Hide
Application Software Developer (Full Stack Developer)
Herndon, Virginia, United States
RemoteFull Time
10+ YOEExperienced full stack developer with 10+ years in software development; 5+ years in DevSecOps and cloud-hosted apps; strong Java, Python, AWS, React/Angular; CI/CD with Jenkins, GitHub, Artifactory; Jira/Confluence; API, databases (MySQL, PostgreSQL).
Java, Python, AWS, React, Angular, Jenkins, GitHub, Artifactory, Jira, Confluence, MySQL, PostgreSQL, JBoss, Spark, Vault
2w
Save
Mark Applied
Hide
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
Save
Mark Applied
Hide
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
Save
Mark Applied
Hide
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
2mo
Save
Mark Applied
Hide
Software Engineer
Vienna or Herndon
HybridFull Time
5+ YOE5+ years in software development with Python/Java/C#, ML with PyTorch; API design; cloud (AWS/GCP/Azure); Linux; Git; microservices; containers (Docker/OpenShift); Kubernetes; SAFe/Agile experience; TS/SCI clearance preferred.
Python, Java, C#, Go, PyTorch, APIs, AWS, GCP, Azure, Linux, Git, Docker, OpenShift, Kubernetes, REST APIs
1w
Save
Mark Applied
Hide
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
Save
Mark Applied
Hide
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
Save
Mark Applied
Hide
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
Save
Mark Applied
Hide
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
Save
Mark Applied
Hide
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
Save
Mark Applied
Hide
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
Save
Mark Applied
Hide
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
Save
Mark Applied
Hide
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
Save
Mark Applied
Hide
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
Save
Mark Applied
Hide
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
Save
Mark Applied
Hide
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
1w
Save
Mark Applied
Hide
SharePoint Developer, Mid
Reston or Charlottesville
$87k-$198k/yr OnsiteFull Time
3+ YOE3+ years in SharePoint development and architecture; 3+ years in building out-of-the-box SharePoint solutions;Experience with web development (Java, Python, JavaScript, HTML, CSS); data visualization with Tableau/Power BI; TS/SCI with polygraph; HS diploma with 7+ years development or Bachelor’s with 3+ years development.
SharePoint, Java, Python, JavaScript, HTML, CSS, Tableau, Power BI
1mo
Save
Mark Applied
Hide
Software Engineer Lead
Herndon or Aurora
$135k-$216k/yr OnsiteFull Time
12+ YOEBachelor’s degree in Computer Science, Engineering, or related field; minimum 12 years of experience; TS/SCI with clearance eligibility; proficiency in Java, C++, Python; Jira and Confluence experience; leadership of technical teams; experience with DevSecOps, cloud, and distributed systems.
Java, C++, Python, Jira, Confluence, DevSecOps, Docker, Kubernetes, Cloud architectures (AWS, Azure)
2w
Save
Mark Applied
Hide
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
2w
Save
Mark Applied
Hide
Staff Software Developer (TS/SCI)
Herndon, Virginia, United States
$92k-$195k/yr OnsiteFull Time
5+ YOEUS citizen with TS/SCI clearance and CI poly; BS in CS/Software Eng; 5+ years backend software dev; Java/Python/JS; REST APIs with Spring Boot; Docker/Kubernetes/OpenShift; Jenkins/Git/Helm; Linux scripting; on-site in Herndon, VA.
Java, Python, JavaScript, Spring Boot, Docker, Kubernetes, OpenShift, Rancher, Jenkins, Git, Bitbucket, Gradle, Bash, Shell, OpenSearch, Elasticsearch, Keycloak, Fluent Bit, Cesium, PostgreSQL
2mo
Save
Mark Applied
Hide
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
Save
Mark Applied
Hide
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
Save
Mark Applied
Hide
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
Save
Mark Applied
Hide
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
Save
Mark Applied
Hide
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
Save
Mark Applied
Hide
Missionforce - Associate Forward Deployed Engineer (FDE), Public Sector
Washington or Herndon
$96k-$177k/yr HybridFull Time
3+ YOE3-7 years software engineering or systems integration; CS background; proficiency in JavaScript/Java/Python/Apex; hands-on delivery of production solutions; AI/LLM experience; data integration/APIs; secure environment experience; travel 25-50%; US citizenship with security clearance.
JavaScript, Java, Python, Apex, Salesforce Platform, Data Cloud, LLMs, AI/ML
1mo
Save
Mark Applied
Hide
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
Save
Mark Applied
Hide
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
Save
Mark Applied
Hide
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
Save
Mark Applied
Hide
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
3mo
Save
Mark Applied
Hide
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
Save
Mark Applied
Hide
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
Save
Mark Applied
Hide
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
Save
Mark Applied
Hide
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
Save
Mark Applied
Hide
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
HiringCafe market data
Java Python Developer Jobs market signals in Halfway, 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
110+
Hiring companies
54
Fresh sample
59% new in 30d
Salary visibility
58% show pay
Companies appearing in this market
ViasatCACIECSGDITLockheed MartinNorthrop GrummanPeratonGeneral Dynamics Information Technology
Work location mix in visible results
Onsite: 49Hybrid: 18Remote: 6