162 senior python developer jobs at 71 companies in Montross, VA
2mo
Save
Mark Applied
Hide
Senior Software Engineer
Quantico, Virginia, United States
OnsiteFull Time
6+ YOEActive TS/SCI clearance; BS in CS/CE/SE/EE/Info Security; 6+ years software/ops; 4+ years in CNO; 2+ years automation (Python/Bash/PowerShell/Ansible); Linux admin; Git/Jira/GitLab; Docker/Podman; leadership; able to work independently.
Python, Bash, PowerShell, Ansible, Linux (Ubuntu, Rocky Linux), Git, Jira, GitLab, Docker, Podman, Docker Compose
1w
Save
Mark Applied
Hide
Senior Software Developer
Dahlgren, Virginia, United States
$120k-$150k/yr OnsiteFull Time
7+ YOEActive Secret clearance and U.S. citizenship, Bachelors in CS/Comp Engineering or related, 7+ years developing high-fidelity C++ modeling and simulation for aircraft/missile/sensor systems, EM development practices, Python/MATLAB experience preferred.
C++, Python, MATLAB, DevSecOps
1mo
Save
Mark Applied
Hide
Senior Software Developer – Secret
Quantico, Virginia, United States
HybridFull Time
7+ YOESecret clearance, Bachelor\u0002s or equivalent,7+ years software development experience; strong with ASP.NET Core,.NET Framework,C#,Java,Python,MS SQL Server,Oracle,SharePoint,ServiceNow,Docker,CI/CD,GIT and DevSecOps practices.
ASP.NET Core, .NET Framework, C#, Java, Python, Microsoft SQL Server, Oracle Database, SharePoint, ServiceNow, Docker, Artifactory, Nexus Repository, NuGet, Git, Infrastructure as Code (IaC)
2mo
Save
Mark Applied
Hide
Mid-to-Senior Software Developer
King George, Virginia, United States
$92k-$135k/yr OnsiteFull Time
8+ YOEBS in engineering/technical discipline, interim Secret clearance and US citizenship required; 8+ years software development experience preferred; proficiency in Java, Rust, C++, Python, Docker, CI/CD, Linux, EM tools, and agile practices.
VS Code, IntelliJ, JIRA, Confluence, GitLab, Java, Rust, C++, Python, Docker, CI/CD, Ubuntu, RedHat, protobuf
2mo
Save
Mark Applied
Hide
Mid-to-Senior Software Developer
King George, Virginia, United States
$92k-$135k/yr HybridFull Time
8+ YOEBS in engineering/science/technical field, 8+ years software development experience, expertise in Java/Rust/C++/Python, Docker, CI/CD, Linux; experience with VS Code, IntelliJ, Jira, Confluence, GitLab; interim Secret clearance and US citizenship required.
VS Code, JetBrains IntelliJ, Jira, Confluence, GitLab, Java, Rust, C++, Python, Docker, CI/CD, Ubuntu, Red Hat, protobuf
1mo
Save
Mark Applied
Hide
Senior AI Developer
Dahlgren, Virginia, United States
$106k-$185k/yr HybridFull Time
3+ YOERequires active Secret clearance and ability to obtain TS/SCI, DoDD 8140.01 IAM Level I, strong Python experience (FastAPI a plus), experience with AI frameworks (Haystack, LangChain, LlamaIndex), RAG workflows, context engineering, MCP servers, and model evaluation.
Python, FastAPI, Haystack, LangChain, LlamaIndex, Model Context Protocol (MCP), RAG
1mo
Save
Mark Applied
Hide
Cloud Developer, Senior
Fort Belvoir or Charlottesville
$87k-$198k/yr OnsiteFull Time
7+ YOE7+ years building and operating enterprise secure systems; 3+ years IaC in AWS/Azure/GCP with Terraform or CloudFormation; 2+ years Golang/Python/SQL/Scala/Java, Ansible, Kubernetes/Docker, networking, CI/CD; Secret clearance and ability to obtain DoD 8570 IAT Level II.
AWS, Azure, GCP, Terraform, CloudFormation, Golang, Python, SQL, Scala, Java, Ansible, Kubernetes, Docker, Helm, GitLab, Linux
2mo
Save
Mark Applied
Hide
Senior DevOps Engineer (REMOTE)
Springfield, Virginia, United States
RemoteFull Time
10+ YOESenior DevOps Engineer with 10+ years software development, 5+ years DevOps, cloud infrastructure, automation, Docker/Kubernetes, Python/Bash/PowerShell; Top Secret clearance.
AWS, Azure, Google Cloud Platform, Docker, Kubernetes, Python, Bash, PowerShell
1w
Save
Mark Applied
Hide
Senior Software Developer
Dahlgren, Virginia, United States
$120k-$150k/yr OnsiteFull Time
7+ YOEActive Secret clearance and U.S. citizenship required; bachelor’s in CS/CE or related; 7+ years developing DoD multi-domain modeling and simulation; advanced C++ and object-oriented skills; Agile and DevSecOps experience.
C++, Python, MATLAB
2mo
Save
Mark Applied
Hide
Senior Apple Platform Engineer
Quantico, Virginia, United States
OnsiteFull Time
7+ YOESenior Apple Platform Engineer with TS clearance, 7+ years Apple device management, DoD IAM, Jamf Pro, scripting, and security engineering.
Jamf Pro, Apple Configurator, Apple Business Manager, Bash, Python, PowerShell, Swift
1w
Save
Mark Applied
Hide
Senior Full Stack AI Developer
United States or National Harbor
$105k-$231k/yr RemoteFull Time
15+ YOEU.S. citizen required; BA/BS with 15 years relevant experience (or approved substitutions); expert Python, full-stack (React, Typescript, CSS) experience; Azure/AWS cloud experience; CI/CD and API development experience; strong problem-solving.
GitLab CI, Azure, AWS, Python, React, Typescript, CSS, Node.js, Ruby, PHP, JavaScript, YAML, JSON, Azure OpenAI, CosmosDB, PostgreSQL, Docker, Kubernetes
2mo
Save
Mark Applied
Hide
Senior Desktop Engineer with macOS focus
Quantico, Virginia, United States
OnsiteFull Time
9+ YOESenior macOS desktop engineer with DoD compliance experience; TS/SCI; Jamf Pro; macOS administration; scripting. Bachelor’s+9y or equivalent. US citizen.
Jamf Pro, MDM, Bash, Python, AppleScript, Apple Business Manager
3mo
Save
Mark Applied
Hide
Senior Agentic AI UI Devleoper
Springfield or Saint Louis
$148k-$267k/yr OnsiteFull Time
10+ YOE10+ years software development; 5+ years web services/UI; BS in CS or related field; JavaScript and Python; RESTful APIs; XML/Java; Secret clearance; Python and AI integration experience.
JavaScript, Python, REST, XML, Java, React, Vue, Angular
2mo
Save
Mark Applied
Hide
Automation Engineer - Senior level
Lexington Park, Maryland, United States
$125k-$180k/yr OnsiteContract
7+ YOESenior automation engineer with Python, Ansible, Terraform; RHEL/Windows; VMware NSX/vCF; Cisco SDA; DoD security; TS clearance.
Python, Ansible, Terraform, Git, VMware Cloud Foundation, VMware NSX, Cisco SDA, RHEL, Windows
3mo
Save
Mark Applied
Hide
Senior Machine Learning Engineer
Wichita or Waldorf or Lawton or Round Rock
OnsiteFull Time
Knowmadics: Develops AI-driven electronic warfare and situational awareness software platforms.
7+ YOE7-10 years in software or ML engineering; Python ML pipelines; deep learning libraries (e.g., PyTorch); C or systems programming; ETL with Kafka/Spark; ML for unstructured data; GPUs/CUDA; production model deployment; US citizenship and eligible for clearance.
Python, PyTorch, CUDA, Kafka, Spark, Docker, Kubernetes, Helm
3w
Save
Mark Applied
Hide
Machine Learning Engineer / AI Model Developer (Mid to Senior)(Top Secret Clearance Required) (Hybrid)
Fort Belvoir, Virginia, United States
HybridFull Time
Active Top Secret clearance, mid-to-senior ML engineering experience; proficiency in Python, ML frameworks, model evaluation, cloud environments, CI/CD, and backend service development.
Python, PyTorch, TensorFlow, Scikit-learn, AWS, Azure, Google Cloud, Git, CI/CD, Docker, Kubernetes
3mo
Save
Mark Applied
Hide
Senior Cloud Engineer (4675)
Huntsville or Hollywood
$88k-$146k/yr OnsiteFull Time
12+ YOESecret clearance; Bachelor's +12 years cloud experience (4 additional years may substitute for degree); DoD 8570/8140 certification; AWS or Azure expertise; IaC, DevSecOps, Kubernetes/Docker knowledge; Linux/Windows admin; strong security and RMF guidance experience.
AWS, Azure, Terraform, CloudFormation, Ansible, PowerShell, Bash, Python, Git, Jenkins, Docker, Kubernetes, CodePipeline, CodeCommit, SCC, RMF
4d
Save
Mark Applied
Hide
SME - Software Developer
Quantico, Virginia, United States
$175k-$185k/yr OnsiteFull Time
10+ YOEHigh school education with 10+ years of experience or equivalent; TS/SCI clearance; application development with databases, containerization, Dockerfiles, and programming languages including Java and Python.
Microsoft SQL Server, Microsoft SharePoint, Oracle Database, ServiceNow, .NET, Java, Python, Dockerfiles, ASP.NET Core, .NET Framework, Artifactory, Nexus, NuGet, C++, Visual Basic, ABAP, XML
2mo
Save
Mark Applied
Hide
Simulation Developer
Quantico, Virginia, United States
OnsiteFull Time
7+ YOEBachelor's in a technical field or equivalent experience; 7+ years simulation/game-focused software development (10 years without degree); proficiency in C++, C#, Python, or Java; experience with simulation engines; active TS/SCI clearance required.
C++, C#, Python, Java, AFSIM, NGTS, OneSAF, Unity, Unreal Engine, Simio, Arena, SQL
5d
Save
Mark Applied
Hide
Mid Cloud Developer
Huntsville or Tysons or Chantilly or Quantico
$133k-$149k/yr OnsiteFull Time
5+ YOERequires active Top Secret/SCI eligibility, a bachelor's degree or four additional years of experience, 5+ years of cloud development, and experience with AWS, Java, Python, Scala, Databricks, and data engineering.
AWS, Data Engineer, Java, Python, Scala, Databricks, PaaS, IaaS, SaaS, DaaS, DevSecOps
Explore Jobs