📣 HiringCafe is hiring a Founding Growth Hacker! Learn More · Apply here
Limited-index browse page
Java Python Developer Jobs in Leonardtown, MD, US
410+ java python developer jobs from 160+ companies hiring in Leonardtown, MD, US.
1w
Save
Mark Applied
Hide
Senior Systems Engineer
Woodbridge, Virginia, United States
OnsiteFull Time
7+ YOEActive Top Secret clearance with SCI eligibility; bachelor’s degree or equivalent experience; 7+ years in CNE/CNO operations; design/architecture analysis; cross-platform engineering; programming in Python/Java/JavaScript/C/C#/Go; Linux experience.
Python, Java, JavaScript, C#, Go, C, Linux
1mo
Save
Mark Applied
Hide
Machine Learning Engineer
Ashburn, Virginia, United States
HybridFull Time
4+ YOEBS in CS/Data Science/EE/Physics +4y or MS in CS/Data Science/EE/Physics +2y; experience in AI/ML, deployment, Python/R/Java, ML libraries, MLOps; data analytics, Agile; US citizenship and public trust clearance required.
Python, R, Java, TensorFlow, PyTorch, Scikit-learn, MLOps, CI/CD, SQL, NoSQL, Apache Spark, Hadoop, Tableau, Power BI, matplotlib, Plotly, AWS, Azure, GCP
1mo
Save
Mark Applied
Hide
Senior Software Engineer
Quantico, Virginia, United States
RemoteFull Time
8+ YOESenior software engineer with 8+ years' experience in software architecture, systems integration, and cybersecurity for enterprise/simulation environments.
Python, Java, C++, JavaScript, Cloud (AWS/Azure), Containers, Microservices, APIs, CI/CD, DevSecOps
20h
Save
Mark Applied
Hide
Senior ServiceNow Developer
Falls Church, Virginia, United States
RemoteFull Time
Senior ServiceNow developer with ITIL/SOA, integration, and strong stakeholder engagement; proficient in ServiceNow modules, automation, and development.
ServiceNow, JIRA, Tableau, REST, SOAP, JSON, XML, Java, Python, JavaScript
1mo
Save
Mark Applied
Hide
Solution Engineer - Game Engine
Minneapolis or Charlotte or Denver or Olympia or Philadelphia or Redlands or San Antonio or St. Louis or Washington
$77k-$127k/yr HybridFull Time
2+ YOE2+ years with Esri technology; 1+ years in various industries; cloud concepts; strong presentation and communication; mobile and Game Engine experience; programming in .NET, C++, Kotlin, Swift, Python, JavaScript, Java; IT context of ArcGIS; willing to travel up to 25-50%; Bachelor's in geography or computer science; visa sponsorship not available.
.NET, C++, Kotlin, Swift, Python, JavaScript, Java, ArcGIS
1mo
Save
Mark Applied
Hide
Signal Processing Engineer / Computer Scientist
Washington, District of Columbia, United States
$120k-$150k/yr OnsiteFull Time
5+ YOEFive years of electromagnetic signal processing experience; RF knowledge; MATLAB, Python, Java; FPGA/VHDL/Verilog; DoD Secret clearance; Bachelor’s in engineering, mathematics, computer science, or physics; ability to lift 50 lbs; some travel.
MATLAB, Python, Java, C++, VHDL, Verilog, FPGA
2mo
Save
Mark Applied
Hide
Staff Engineer, AI Core
Palo Alto or Miami or Washington or Durham or Toronto
HybridFull Time
Experience as a Staff Engineer or Senior Engineer shipping complex, large-scale consumer-facing mobile apps; strong backend and AI/ML data-pipeline experience; leadership and mentorship.
Flutter, AWS, Go, Java, Python, Clojure, Microservices, Event-driven
6d
Save
Mark Applied
Hide
Senior Cloud Infrastructure Engineer, Google Public Sector
Reston or Atlanta or Austin or Boulder or Sunnyvale or Washington D.C.
$153k-$222k/yr OnsiteFull Time
6+ YOEBachelor's in CS or equivalent; 6 years infra automation, DevOps, and IaC; 6 years troubleshooting; coding in Python/Java/Go/C/C++; IaC (Terraform/OpenTofu); active Secret clearance
Terraform, OpenTofu, GitOps, Kubernetes, GKE, Python, Java, Go, C, C++
3mo
Save
Mark Applied
Hide
Principal Software Engineer
Arlington, Virginia, United States
$179k-$269k/yr HybridFull Time
10+ YOE10+ years in software engineering; 5+ years in leadership; distributed systems expertise; multiple languages; secure systems knowledge; TS/SCI eligibility.
C/C++, Go, Rust, Python, Java, Git, Jira, libp2p, PostgreSQL, SQLite, Kafka, NATS
1mo
Save
Mark Applied
Hide
Junior Software Engineer
Annapolis Junction, Maryland, United States
$95k-$105k/yr OnsiteFull Time
Bachelor’s degree or equivalent experience; basic programming knowledge; familiar with Git; strong problem-solving and communication skills.
Git, Java, Python, JavaScript, C#
3mo
Save
Mark Applied
Hide
Frontend Lead Engineer
Richmond or Arlington
OnsiteFull Time
6+ YOE6+ years of front-end experience with modern web technologies (React, Vue, Angular); four-year CS/engineering degree; experience with REST APIs, AWS, and testing; in-person location requirement to Richmond, VA or Arlington, VA.
React, Vue, Angular, Golang, Java, Node, Python, Cypress, Playwright, AWS, Kubernetes, Postgres
1w
Save
Mark Applied
Hide
Senior Systems Engineer
Springfield, Virginia, United States
$113k-$238k/yr OnsiteFull Time
9+ YOEActive TS/SCI with CI Poly, BS +7 years IT, OpenShift, DevOps, Alfresco, Node.js, React, Java, AWS, security clearances.
OpenShift, DevOps, Alfresco, Node.js, React, Java, DynamoDB, Akamai, Matomo, PaaS, GitHub, Jira, Confluence, AWS, C2S, ODS S3, MySQL, Python, PostgreSQL, SOLR, OpenText
1mo
Save
Mark Applied
Hide
Lead Software Engineer, DevOps (Cloud Operations Resilience Engineering)
McLean or Plano or Richmond
HybridFull Time
4+ YOEBachelor’s degree; 4+ years DevOps; 3+ years Cloud Native; 4+ years Unix/Linux admin; strong Java/Python/SQL/Ruby/Go; AWS; Docker/Kubernetes; Ansible/Terraform.
Java, Python, SQL, Ruby, Go, Docker, Kubernetes, Ansible, Terraform, AWS, Apache Mesos, Marathon, Apache Spark, Jenkins, Splunk, ElasticSearch
2mo
Save
Mark Applied
Hide
Data Engineer
Reston or San Diego or San Francisco or Washington or Wilmington or Phoenix or Los Angeles or Houston or Boston or Austin or Atlanta or Raleigh or Baltimore or New York or Dallas or Palo Alto or Short Hills or Minneapolis or Chicago or Seattle or Philadelphia or Miami
$101k-$160k/yr HybridFull Time
3+ YOEDesign, build, and operate data pipelines and integration; leverage Azure data services; 3+ years of data engineering experience; proficient in SQL and Python.
Azure Data Factory, Azure Databricks, Azure Event Hubs, SSIS, Azure Synapse Analytics, SQL, Python, PowerShell, Java, Scala, Go
4d
Save
Mark Applied
Hide
ME00582-Software Engineer 3
Annapolis Junction, Maryland, United States
$175k-$235k/yr OnsiteFull Time
20+ YOETop Secret/SCI with NSA Full Scope Poly; 20+ years SWE experience; BS in a STEM field; automation testing and QA; Agile collaboration.
Gherkin, Cucumber, Selenium, Python, Java, HTML, CSS, JavaScript, SQL
2mo
Save
Mark Applied
Hide
Lead AI Full Stack Software Engineer – Investments Technology
Baltimore or Washington DC
$145k-$309k/yr HybridFull Time
8+ YOELead design, development, and deployment of production-grade AI systems; 8+ years in OO languages; cloud-native with AWS/Azure; leadership of engineering teams.
AWS, Azure, Containerization, Microservices, Agent frameworks, Python, Java, JavaScript, LLM, Bedrock, Kiro, Codex, Vector databases, RAG
3w
Save
Mark Applied
Hide
Sr Software Engineer - Platform Data Query
San Diego or Santa Barbara or Dallas or Atlanta or Chicago or San Francisco or Washington DC or Denver
$138k-$173k/yr HybridFull Time
5+ YOEExperience operating, scaling, and enhancing data pipelines with Iceberg, Trino, Kafka, Flink; strong SQL and cloud data services (AWS). 5+ years in software engineering; multi-tenant SaaS background preferred.
Trino, Apache Flink, Kafka, Iceberg, AWS Athena, AWS S3, AWS Glue, Python, Ruby, Java, JavaScript, C#, SQL
2mo
Save
Mark Applied
Hide
Data Engineer
Arlington, Virginia, United States
HybridFull Time
2+ YOE2-7+ years in data analytics/engineering; BS in a relevant field; strong Python/SQL; experience with data pipelines, Databricks, AWS; ability to work with IRS data; security clearance required.
Python, SQL, Java, Databricks, AWS, Power BI, Tableau
2w
Save
Mark Applied
Hide
ENGINEER/SCIENTIST
Dahlgren, Virginia, United States
$71k-$158k/yr OnsiteFull Time
1+ YOEInterdisciplinary engineering/science role focusing on radar systems; requires specialized experience in testing, analysis, and development of engineering data.
Python, C++, Java, MATLAB, GUI
3w
Save
Mark Applied
Hide
ICAM Engineer
Lorton, Virginia, United States
OnsiteFull Time
6+ YOEIAM developer with experience in provisioning, RBAC, federation; strong security practices; hands-on with IAM platforms; cloud and on-premise integration; leadership and communication.
Okta, SailPoint, Azure Active Directory, AWS IAM, Java, Python, PowerShell
1w
Save
Mark Applied
Hide
Software Engineer/Data Manager
Alexandria or Quantico
OnsiteFull Time
8+ YOESenior Software Engineer with data management expertise; 8+ years experience; TS/SCI with poly is required.
Python, Java, C++, SharePoint, PowerPoint, Visual Studio
5d
Save
Mark Applied
Hide
Sr. Staff Data Engineer, Data Platform, CNN Digital Products & Services
New York or Atlanta or Washington
$160k-$296k/yr HybridFull Time
10+ YOE10+ years software/data engineering; 7+ years cloud; Spark/Flink; Airflow/Dagster; SQL/Java/Python/Go; Snowflake/Databricks; lead technical direction across teams.
Spark, Flink, Airflow, Dagster, Snowflake, Databricks, SQL, Java, Python, Go, Kafka, Kinesis
3w
Save
Mark Applied
Hide
RPA Developer (Robotic Process Automation, Associate)
Arlington, Virginia, United States
$122k-$131k/yr HybridFull Time
7+ YOE7+ years relevant experience; federal financial/business processes knowledge; 1-3 years in systems development; 1 year RPA bot development; strong analytical and communication skills.
UiPath, Automation Anywhere, Blue Prism, Kofax, SQL, NoSQL, C#, Visual Basic, Python, JavaScript, Java, .NET, REST APIs
3w
Save
Mark Applied
Hide
Machine Learning Engineer - Secure AI Lab
Pittsburgh or Arlington
OnsiteFull Time
8+ YOEExperience in machine learning, AI, software engineering; on-site work in Pittsburgh or Arlington; ability to work with government sponsors and ensure secure AI.
TensorFlow, PyTorch, Torch, Caffe, Python, C++, Java, ETL, data pipelines
1w
Save
Mark Applied
Hide
CRM and Integration Developer
Washington, District of Columbia, United States
$55k-$100k/yr HybridFull Time
2+ YOEBachelor’s degree in Computer Science or related field; 2-4 years enterprise systems design, CRM development, and integration; Salesforce CRM, MuleSoft; front-end development; scripting; databases; IAM; certifications preferred.
Salesforce CRM, MuleSoft, Anypoint Platform, Workday, Oracle, SQL Server, HTML, CSS, Python, Java, JavaScript, Shell Scripting, LDAP, Shibboleth, Kerberos, REST APIs, SOAP APIs, Git, CVS, SVN
4d
Save
Mark Applied
Hide
Senior Staff Engineer - Financial Substantiation Platform *Hybrid*
Bethesda or Dallas or Washington or Falls Church or Baltimore or Seattle
$120k-$260k/yr HybridFull Time
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
Save
Mark Applied
Hide
Senior Director, Software Engineering
Philadelphia or Alexandria or Ann Arbor
HybridFull Time
10+ YOE5+ MgmtBachelor's in CS or related; 10+ years leadership; 10+ years software development; strong Java and Python.
Java, Python, Angular, Talend, Databricks, Spark, AWS, PostgreSQL, MySQL, Oracle, XML, XSLT, REST, SOAP, NodeJS
2mo
Save
Mark Applied
Hide
Sr. Infrastructure Engineer 2 - Network
Washington, District of Columbia, United States
OnsiteFull Time
8+ YOESenior system admin with Linux/Windows, scripting (Perl/Shell/Python), network addressing, security, and server co-location experience; 8+ years IT.
Linux, Windows, Active Directory, Tomcat, JBoss, Perl, Shell, Python, IPv4/IPv6, SQL, Java
2w
Save
Mark Applied
Hide
Software Engineer II- (GCC‑High/DoD)- CTJ- Secret
Washington or Reston
$101k-$199k/yr OnsiteFull Time
3+ YOEBachelor's in Computer Science or related field plus 2+ years coding experience; 3+ years design/coding; Azure experience; security clearance required.
Azure, Git, ARM/Bicep, CI/CD, Kusto, Python, Java, C++, C#, JavaScript
3w
Save
Mark Applied
Hide
RPA Developer (Robotic Process Automation, Associate)
Arlington, Virginia, United States
$122k-$131k/yr HybridFull Time
7+ YOE7+ years of relevant experience; federal financial/business process knowledge; 1-3 years in systems development; 1 year building RPA bots with UiPath, Automation Anywhere, Blue Prism, or Kofax; strong analytical and communication skills.
UiPath, Automation Anywhere, Blue Prism, Kofax, SQL, NoSQL, C#, Visual Basic, Python, JavaScript, Java, .NET REST APIs
2w
Save
Mark Applied
Hide
Awesome Full Stack Software Engineer (2+ years - Senior Level)
Arlington or Reston
HybridFull Time
2+ YOE2+ years professional experience; proficient in at least one OO language; MVC framework experience; relational DB; Linux; HTTP/REST/HTML/CSS/JS.
Java, Python, C#, C++, Spring, Django, Flask, Rails, MySQL, PostgreSQL, SQLite, Linux, HTTP, REST, HTML, CSS, JavaScript, React, Angular, Vue.js, Bootstrap, Less, Elasticsearch, MongoDB
2mo
Save
Mark Applied
Hide
Senior AI/ML Modeling, Simulation & Analysis Engineer (Part-Time)
Chantilly or Springfield
OnsitePart Time
Active TS/SCI clearance; MS in Computer Science, AI/ML, Computer Vision, or related STEM; experience in AI model verification, validation, and evaluation; AI Assurance and Explainable AI; proficiency in Python, C++, MATLAB, R, or Java; experience with AI/ML modeling and automation.
Python, C++, MATLAB, R, Java
1w
Save
Mark Applied
Hide
CLOUD SOFTWARE ENGINEER - Big Data Cloud - 8+ yrs of Experience - TS/SCI w/Poly clearance is required - TB
Annapolis Junction, Maryland, United States
$213k-$219k/yr OnsiteFull Time
8+ YOEEight (8) years of software engineering experience; two (2) years in Big-Data Cloud or distributed computing; BS in CS or related field; cloud/IR/DB/MR plus related certifications and experience.
Java, Spring, Eclipse, Maven, RESTful Web Services, HDFS, HBase, Apache Lucene, Apache Solr, MongoDB, MapReduce, YARN, Cloud Computing, COTS/GOTS, Python, Bash, Ruby, CFEngine, Unix/Linux, CentOS, VMware, VirtualBox, Jenkins, Git, Subversion, ClearQuest, Razor
2w
Save
Mark Applied
Hide
Senior Systems Engineer (HTOCU – Application Development & Data Linking Platforms)
Washington, District of Columbia, United States
OnsiteFull Time
0+ YOEHands-on senior systems engineer with full-stack development, data-linking, APIs, and secure government standards; Top Secret clearance required.
Python, Java, C#, SQL, APIs, Jira
2mo
Save
Mark Applied
Hide
Software Engineer 0
Annapolis Junction, Maryland, United States
$119k-$159k/yr OnsiteFull Time
Active TS/SCI with POLY preferred; suitable for candidates with active clearance.
C, C++, Bash, Python, Java, Unix, MPI, SHMEM, CUDA, HIP, Jupyter, Matplotlib
1mo
Save
Mark Applied
Hide
SME - Software Engineering (DC)
Los Angeles or Washington
$200k-$310k/yr HybridFull Time
12+ YOE12+ years in software development; 10+ years in leadership; BS CS/SE or MS degree; proficient in Python/Java/C++; Agile/DevSecOps/SRE/CI/CD; TS/SCI clearance with CI polygraph.
Python, Java, C++, Agile, DevSecOps, Site Reliability Engineering, CI/CD
2w
Save
Mark Applied
Hide
Data Engineer (VA, Quantico)
Quantico, Virginia, United States
OnsiteFull Time
10+ YOETen years IT experience with at least six years in data engineering; strong SQL and coding skills; cloud experience; DoD/DoN or law enforcement familiarity preferred.
SQL, Python, Java, R, Scala, AWS, Azure, GCP
2mo
Save
Mark Applied
Hide
Payload Operations Engineer
Lanham, Maryland, United States
OnsiteFull Time
0+ YOEBachelor’s in engineering or STEM; 0–2 years experience; satellite payload experience preferred.
Git, Jira, Confluence, Java, Python, MATLAB, C
2w
Save
Mark Applied
Hide
Principal Test Engineer
Annapolis Junction, Maryland, United States
$200k-$280k/yr OnsiteFull Time
20+ YOEActive TS/SCI with Polygraph; 20 years SE experience; US citizenship; Bachelor’s in a related field; strong testing and automation skills.
Cucumber, Selenium, Python, Java, HTML, CSS, JavaScript, SQL
2mo
Save
Mark Applied
Hide
Systems Support Engineer
Washington, District of Columbia, United States
$90k-$140k/yr OnsiteFull Time
5+ YOE5+ years in technical support/engineering; BS in CS/Engineering; strong communications; SQL/MS SQL Server; hardware, software, networking; travel required.
JIRA, Confluence, Splunk, SQL Server Management Studio, Microsoft Server, TCP/IP, PowerShell, Java, Tomcat, MSSQL, C#, C++, Python, HTML, JSON, XML
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
410+
Hiring companies
160+
Fresh sample
47% new in 30d
Salary visibility
64% show pay
Companies appearing in this market
EsriCACIGoogleT. Rowe PriceCapital OneCarnegie Mellon UniversityDLA PiperElder Research
Work location mix in visible results
Onsite: 31Hybrid: 24Remote: 3