51 senior python developer jobs at 26 companies in Lancaster, VA
2d
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Senior Data Engineer/Software Developer - Clearance
Newport News, Virginia, United States
$111k-$193k/yr OnsiteFull Time
10+ YOEBachelor's degree in a technical field, 10+ years using Python, SQL, and Tableau, 5+ years building legacy-system data connectors, technical team leadership, and active DoD Secret clearance.
Python, PySpark, Pandas, SQL, Tableau, Palantir Foundry, Workshop, D3.js, Angular, React, JavaScript
3mo
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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
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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
2mo
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Senior Systems Engineer
Langley AFB, Virginia, United States
$98k-$121k/yr OnsiteFull Time
General Dynamics Information TechnologyNYSE: GD: Provides mission-critical IT services to government and defense organizations.
5+ YOE5+ years of systems engineering; TS/SCI clearance; BA/BS; VMware experience; STIGs; DoW 8570.1 IAT Level II; Windows Server admin; DoD program experience.
VMware, Windows Server, STIG, PowerShell, Python, Ansible, PowerCLI, IIS, MS SQL, F5 BIG-IP
3mo
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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
3w
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Software Developer (WSCE-JSE)-Senior
Patuxent River, Maryland, United States
$170k-$199k/yr OnsiteFull Time
10+ YOEBachelor's in CS/CE (or related) and 10 years C++ experience; experience with real-time simulation, multithreading, distributed architectures, CMake, Git, CI/CD, Linux, cross-language integration, and ability to obtain DoD clearance.
C, C++, Python 3, CMake, Git, CI/CD, DevOps, Linux, Java, Jira, Windows
2d
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Senior Data Engineer/Software Developer - Clearance
Newport News or Virginia
$111k-$193k/yr OnsiteFull Time
10+ YOEBachelor's degree in a technical field, 10+ years using Python, SQL, and Tableau, 5+ years building legacy-system data connectors, technical team leadership, and active DoD Secret clearance.
Python, SQL, Tableau, PySpark, Pandas, CI/CD, Palantir Foundry, Workshop, D3.js, Angular, React, JavaScript
2mo
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Senior Systems Engineer
Langley AFB, Virginia, United States
$98k-$121k/yr OnsiteFull Time
5+ YOE5+ years of related systems engineering experience; TS/SCI clearance; BA/BS or equivalent; VMware experience; STIGs experience.
VMware, Windows Server, IIS, PowerShell, Python, Ansible, PowerCli, SQL Server, F5 BIG-IP, STIGs
2mo
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Principal Software Engineer (AHT)
Hollywood, Maryland, United States
$114k-$171k/yr OnsiteFull Time
5+ YOERequires DoD Secret clearance, Bachelor's in STEM with 5+ years' experience (or Master's with 3+ years), proficiency in C# or Java, Agile/CICD (Bamboo, Jenkins), scripting (yaml, Python, PowerShell), automated testing, and test procedure development.
Bamboo, Jenkins, C#, Java, Microsoft Windows, Windows Presentation Foundation (WPF), .NET Framework, gRPC, REST, yaml, Python, PowerShell, Batch, Typescript, TestComplete 4, BitBucket, git, CVS, Jira, Confluence, Crucible, Fish-eye, SQL, Azure, AWS, Docker, Kubernetes, Ansible, Terraform, Chef, Puppet, DOORS, JMPS Framework (FW)
1mo
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Software Engineer - Level 5
Edwards AFB or Fort Worth or Henderson or Las Vegas or Marietta or Palmdale or Patuxent River or California or Georgia or Maryland or Nevada or Texas
$134k-$267k/yr OnsiteFull Time
US citizen required; Bachelor's or Master's in engineering/CS/physics; experience with program lifecycle steps; object-oriented development and real-time/CI/tools experience; familiarity with MATLAB/Simulink, C/C++, Python, MPI/OpenMP, DO178C preferred.
MATLAB, Simulink, Linux, Microsoft Visual Studio, Jenkins, Git, Bitbucket, VersionOne, Jira, MPI, OpenMP, Modern Fortran, C, C++, Python, bash, Confluence, DO178C
1mo
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Principal Software Engineer (AHT)
Hollywood, Maryland, United States
$114k-$171k/yr OnsiteFull Time
5+ YOEB.S. in STEM +5 years experience, active Secret clearance adjudicated within last 5 years, experience with Agile, CI/CD, C# / Java / .NET, OOD, SQL, scripting (YAML, Python, PowerShell, curl), Git/GitHub, Atlassian tools.
Agile Methodology, CI, CD, C#, Java, .NET, SQL, YAML, Python, PowerShell, curl, Git, GitHub, Bitbucket, Jira, Confluence, REST, AsyncAPI, React, Docker, Kubernetes, AWS, Azure
3w
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Software Engineer (Modeling & Simulation) ATC Systems
Patuxent River, Maryland, United States
OnsiteFull Time
PaylocityNASDAQ: PCTY: Provides cloud-based human capital management and payroll software.
5+ YOE5+ years software engineering experience building or maintaining simulation engines; bachelor\u0002s degree in CS or related field; mastery of C++, Java, or Python; HLA/DIS and Git experience; eligible for U.S. Secret clearance.
C++, Java, Python, High-Level Architecture (HLA), Distributed Interactive Simulation (DIS), Git, GitLab, CI/CD, Agile, Windows, Linux
2w
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Mid-Level Software Engineer (Job ID:4428)
Dahlgren, Virginia, United States
OnsiteFull Time
5+ YOEBachelor's in STEM,5+ years professional experience,proficiency in Python and C++,CI/CD and DevSecOps experience,Git/GitLab,JIRA/Confluence,ability to obtain and maintain Secret clearance.
Python, C++, Git, GitLab, JIRA, Confluence, Redhat Linux, Docker, Jenkins, Rust, DevSecOps
2mo
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RESEARCH ENGINEER - Hypersonic Boundary-Layer Stability & Trans.
Hampton, Virginia, United States
$72k-$83k/yr HybridFull Time
PhD in Engineering, Computer Science, Mathematics, or Physics; advanced Fortran and Python; CFD knowledge; US citizenship; ability to obtain NASA badge; strong communication and teamwork.
Fortran, Python, CFD, Linux, Git, Tecplot, Paraview, OpenMP, MPI, VULCAN-CFD
3w
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Offensive Security Engineer, Intermediate (Security Engineering, Senior Analyst)
Lexington Park, Maryland, United States
$115k-$170k/yr OnsiteFull Time
5+ YOE5+ years experience in offensive security, Python programming, reverse engineering (GHIDRA, IDA Pro), ability to obtain Top Secret/SCI, DCWF role qualifications within 60 days, strong communication and teamwork.
Python, GHIDRA, IDA Pro, Assembly Language
1mo
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Senior Data Integrity Engineer (Avionics Software & Data Analysis)
Lexington Park or Patuxent River
$140k-$175k/yr OnsiteFull Time
10+ YOEBS in CS/EE or related, 10+ years relevant experience, active Secret clearance, strong software engineering fundamentals, proficiency in C/C++/Java/Python, systems engineering and avionics knowledge, technical writing skills.
C, C++, Java, Python
2mo
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CHIEF ENGINEER
Hollywood, Maryland, United States
$180k-$250k/yr OnsiteFull Time
10+ YOE10+ MgmtSTEM degree with extensive senior engineering experience (10+ years), 10+ years managing technical teams, U.S. citizenship with ability to obtain/maintain DoD Secret clearance, strong leadership, systems and UAS engineering expertise.
CAD, Python, C++, C, GD&T, AS9100
3d
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Senior Instrumentation & Controls Engineer 1 - Nuclear
Surry, Virginia, United States
$85k-$129k/yr FieldFull Time
5+ YOEBS or MS in engineering from an ABET-approved program, 5+ years of process control systems design experience, nuclear plant controls preferred, and expertise with instrumentation, controls, and design reviews.
PLC, DCS, MATLAB, Microsoft Excel, Python, AI
2w
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ENGINEER NUCLEAR 4
Newport News, Virginia, United States
$124k-$153k/yr OnsiteFull Time
9+ YOEABET-accredited engineering degree with relevant experience (Bachelor's+9yrs, Master’s+7yrs, Ph.D.+4yrs); U.S. citizenship; experience in shielding and radiation analysis; Python and Linux/Unix experience preferred.
Python, High Power Clusters, Linux/Unix, Monte Carlo
2mo
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Lead AI Engineer (GenAI Platform, AI Foundations, LLM Core and Agentic AI)
McLean or San Francisco or San Jose or Richmond or New York City
$197k-$225k/yr OnsiteFull Time
4+ YOEBachelor’s or Master’s in CS/AI/EE/CE with 2–4+ years of AI/ML experience; 4+ years Python/Go/Scala/Java; cloud experience with AWS/GCP/Azure preferred.
AWS, Huggingface, PyTorch, VectorDB, Nemo Guardrails, Open Source AI tools
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