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Senior Python Developer Jobs in Leesburg, VA, US
2,200+ senior python developer jobs from 510+ companies hiring in Leesburg, VA, US.
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Hybrid Software Reverse Engineer - FUTURE NEED
Vienna, Virginia, United States
$43-$96/hr OnsiteFull Time
US citizen; ability to obtain government security clearance; Bachelor's in CS/CE/EE/Math/Physics; read assembly; proficient in C/C++/Java/Python; knowledge of Java and low-level languages; strong communication and teamwork.
IDA Pro, Python, MongoDB, Neo4j, C, C++, Java, C#
2mo
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Senior DevSecOps / Platform Security Engineer (AWS + Kubernetes)
McLean or United States
$175k-$215k/yr RemoteFull Time
5+ YOE5+ years in DevOps/SRE/Platform Eng or Security Eng with automation; strong AWS security; Kubernetes security; CI/CD security; IaC; Python/Go/Bash.
Terraform, CloudFormation, CDK, Pulumi, Kubernetes, EKS, Python, Go, Bash, SAST, SCA, IaC scanning, cosign, OPA, Gatekeeper, Kyverno, SBOM
2mo
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Sr. Infrastructure Engineer 2 - Network
Washington, District of Columbia, United States
OnsiteFull Time
8+ YOESenior IT infra engineer; Linux/Windows servers; scripting (Perl/Shell/Python); IPv4/IPv6, DNS; Tomcat/JBoss; Unix/Linux; English fluency.
Perl, Shell, Python, Tomcat, JBoss, Unix/Linux, Active Directory, DNS, IPv4/IPv6
2mo
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Senior Software Systems Engineer
Falls Church, Virginia, United States
$155k-$185k/yr OnsiteFull Time
9+ YOEActive Top Secret clearance; system design, integration, validation; Agile/CI/CD; IC experience; leadership; 9+ BS/7+ MS/4+ PhD.
Jenkins, Git, MBSE, Python, C++
2w
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Senior RF Electrical Engineer
Herndon, Virginia, United States
$130k-$170k/yr OnsiteFull Time
7+ YOEBachelor's in RF/Electrical Engineering; 7+ years RF electronics; SDRs; space systems; PCB design; EMI/EMC; collaboration across teams.
Spectrum Analyzers, Network Analyzers, Signal Generators, Noise Figure Analyzers, RF test chambers, Altium, ADS, CST, HFSS, Python, C++, MATLAB, JIRA, Confluence
2w
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Senior RF Seeker Engineer
Columbia, Maryland, United States
$150k-$170k/yr OnsiteFull Time
10+ YOEUS citizenship, Secret clearance, BS in Electrical Engineering/Physics/Mathematics, 10 years RF sensor systems experience, MATLAB proficiency, strong communication, ability to lead a small team.
MATLAB, Python, C++
1mo
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Senior Cyber Security Engineer
Washington or Virtual
HybridFull Time
8+ YOE8+ years in cyber security engineering/DevSecOps; RMF/NIST 800-53/DISA STIGs; DoD environment; scripting; CI/CD; container security; security automation; ATO; cloud and FedRAMP familiarity.
Python, Bash, Ansible, Nessus, ACAS, SCAP, SonarQube, OWASP ZAP, GitLab, Jenkins, Docker, Kubernetes, Terraform, Helm, NGINX, OAuth2, JWT, mTLS, FIPS 140-2, ELK, Splunk, SAST, DAST
1mo
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Principal Software Engineer – Systems & Delivery (Mission Ground Systems)
Chantilly, Virginia, United States
OnsiteFull Time
8+ YOE8+ years software engineering; Rust, Python, or C/C++; backend systems and APIs; cloud (AWS); break down problems; improve reliability; AI-assisted tools.
Rust, Python, JavaScript/TypeScript, Bash, C/C++, React, AWS, Proxmox, Terraform, Ansible, Packer, GitLab CI/CD, Claude Code, Codex, Linux
4w
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PwC Tech Azure Cloud Architect/Engineer (Senior Manager)
Tampa or Raleigh or Charlotte or Chicago or Cincinnati or Cleveland or Columbia or Columbus or Dallas or Baltimore or Richmond or Rochester or Boston or Seattle or Spartanburg or Albany or Stamford or Atlanta or Toledo or Austin or Tulsa or Washington or Denver or Des Moines or Detroit or Buffalo or New York or Miami or Milwaukee or Minneapolis or Montpelier or Nashville or New Orleans or Oklahoma City or Portland or Philadelphia or Phoenix or Pittsburgh or San Antonio or San Diego or San Francisco or Irvine or Silicon Valley or Seattle or Spartanburg or Albany or Milwaukee or Melville or Miami or Oklahoma City or Orlando or Phoenix or Pittsburgh or Portland or Tampa or New York or Houston or Fort Worth or Sacramento or Hartford or San Jose or St. Louis or Irvine or Oakland or Washington or Denver or Boston or Newark or Albany or Stamford or Birmingham or Tulsa or Des Moines or Knoxville or Portland or Philadelphia or Raleigh or San Francisco or San Diego or Phoenix or Miami or Austin or San Antonio or Houston or Jacksonville or Rochester or United States
$91k-$322k/yr OnsiteFull Time
6+ YOESenior Manager level Azure IT infrastructure/cloud engineering with 6+ years, Bachelor’s preferred, strong Azure, IaC, automation.
Terraform, Bicep, Azure CLI, PowerShell, Python, Bash, Azure DevOps, IaC
3w
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Sr. Software Engineer - TS/SCI CI Poly Required
Washington, District of Columbia, United States
OnsiteFull Time
Tesla Laboratories: Provides engineering, cybersecurity, and environmental services to federal agencies.
Active TS/SCI clearance with CI Polygraph required; experience with Java, Groovy, Grails, Python, PL/SQL, JavaScript, CSS, HTML; Oracle DB; Tomcat; GIS tools.
Java, Groovy, Grails, Python, PL/SQL, JavaScript, CSS, HTML, Oracle, Tomcat, GeoServer, OpenLayers, XML, JSON, IBM Watson Explorer, Elasticsearch
1mo
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Data Engineer (AI) Senior Engineer (5143) (TS/SCI) (Ft. Belvoir, VA - Nolan Bldg)
Fort Belvoir, Virginia, United States
$165k-$180k/yr OnsiteFull Time
3+ YOEActive TS/SCI clearance; degree in CS/Data Science/Engineering with 3+ years (MS) or 7+ years (BS) in data engineering; security+ certification; programming (Python/SQL/Bash); cloud and CI/CD experience.
Python, SQL, Bash, Cloud platforms, Containerization, CI/CD, Data pipelines, ETL/ELT
11h
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Data & AI Senior Engineer - 90405345 - Washington DC, Philadelphia PA, Wilmington DE or Chicago IL (Washington, DC, US, 20001)
Washington or Philadelphia or Wilmington or Chicago
$87k-$112k/yr OnsiteFull Time
4+ YOE4–6 years in data engineering, software development, or data architecture; Bachelor's in CS/Data Engineering or related field; onsite work across multiple cities.
Python, SQL, Spark, Databricks, SAP, Denodo, APIs, MLOps
2w
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Senior Research Analyst
Arlington, Virginia, United States
HybridFull Time
PhD in social sciences or statistics with emphasis on research methods, or Master’s in applied statistics/economics with three years’ experience; strong statistical software skills (Stata; Python/R/GIS helpful); experience managing projects and junior researchers.
Stata, Python, R, GIS
1w
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Sr Engineer - BGE Electric Transmission
Baltimore, Maryland, United States
$103k-$142k/yr HybridFull Time
7+ YOEBachelor's degree in Engineering or PE; 7+ years' experience; strong knowledge of electrical/mechanical systems; licenses/certifications; ability to lead and analyze complex projects.
CYMDIST, PSS-E, Python, PLS-CAD, Pole Foreman, Power BI
9h
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Protection Scientist Engineer, Intelligence and Investigations
San Francisco or New York City or Washington or Remote - US
$198k-$425k/yr HybridFull Time
4+ YOE4+ years in technical analysis/detection using SQL and Python; experience in trust/safety; data engineering and ML knowledge; productionised code experience.
SQL, Python, Data pipelines, Machine Learning, Production software development
2mo
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SAP NS2 Sr. Intel Devops Engineer-TS/SCI+Poly-Onsite-Chantilly, VA (Herndon, VA, US, 20171)
Chantilly or Herndon
$131k-$272k/yr OnsiteFull Time
5+ YOESenior DevOps engineer with extensive AWS, IaC, containerization, CI/CD, and security in regulated environments.
AWS, Terraform, Python, Git, Docker, Kubernetes, CI/CD, Cloud Foundry, SAP BTP
1d
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Senior Cloud and Infrastructure Engineer - Technical Advisor
McLean or United States
RemoteFull Time
5+ YOEFive to seven plus years hands-on experience in cloud infrastructure engineering; Bachelor's in CS/IT; ability to obtain a public trust; strong AWS GovCloud and other cloud experience; IaC (Terraform/Ansible); containers (Docker/Kubernetes); scripting (Python/Bash/PowerShell); DoD/government security and SDLC experience; Agile experience.
Terraform, Ansible, Docker, Kubernetes, ElasticSearch, Kibana, Prometheus, Grafana, Python, PowerShell, Bash
3w
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Sr. Power Platform Developer
Arlington, Virginia, United States
$86k-$170k/yr RemoteFull Time
5+ YOE5+ years in Power Platform/SharePoint; US citizenship; BA/BS; federal contracting experience; strong documentation and communication.
Power Platform, SharePoint Online, Copilot, SPFx, Azure, Power Apps, Power Automate, Dataverse, Power BI, JSON, .NET, JavaScript, Python
1w
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Full Stack Software Engineer – UI/UX & Web Engineering (Azure)
New York or Washington or Denver or Seattle or Los Angeles or Chicago or Austin or Dallas
OnsiteFull Time
12+ YOEBachelor's degree; 12+ years full-stack experience; strong React/Vue; REST APIs; Python/Node/.NET; Azure services; DevOps; Git; Agile.
React, Vue, Python, Node.js, .NET, REST APIs, Azure, Azure App Services, Azure Functions, Cosmos DB, Azure Storage, CI/CD, Git
1mo
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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
1w
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AI Platform and Applications Engineer
Washington, District of Columbia, United States
$103k-$185k/yr HybridFull Time
8+ YOEBachelor's degree or equivalent; 8-10 years software/platform engineering; 2-3 years AI/LLM experience; strong Python/TypeScript; API and backend experience; AI-enabled apps with LLMs, embeddings, retrieval; RAG and agentic workflows; containerized deployments; Linux; observability; strong communication.
Python, TypeScript, Node.js, APIs, Linux, Git, Docker, CI/CD, observability, vector databases, embeddings, RAG, llama.cpp, Hugging Face
3mo
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Senior Scientist (TS/SCI) {S}
Chantilly or Ypsilanti
HybridFull Time
10+ YOEU.S. citizen with TS/SCI clearance; degree in electrical engineering, signals processing, physics, or related field; 10 years’ experience in lieu of degree; SAR experience; programming in C++, Python, MATLAB, Rust; multi-vendor integration; strong problem-solving.
C++, Python, MATLAB, Rust
6d
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Senior Cloud Operations Engineer (23584)
Washington, District of Columbia, United States
$102k-$153k/yr HybridFull Time
3+ YOE3+ years enterprise cloud infrastructure; 2+ years AWS; Linux admin; automation; on-call; FedRAMP support; 2nd shift
AWS, Linux, Bash, Python, Shell, Networking, VPC, EC2, S3, EBS, ELB, Route53, CCNA, GCP
4d
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Senior PostgreSQL Database Reliability Engineer
Tysons Corner, Virginia, United States
$170k-$210k/yr RemoteFull Time
5+ YOE5+ years PostgreSQL administration in production; deep PostgreSQL internals; replication and high availability; backup/recovery; ETL/data workflows; autonomous, communicative; degree in CS/IS/Math.
PostgreSQL, Barman, pgBackRest, Linux (Ubuntu), Ansible, Terraform, Python, Prometheus, Grafana
3mo
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Elastic Engineer
Dulles, Virginia, United States
$120k-$135k/yr HybridFull Time
8+ YOE8+ years software development; 2+ years Elastic Cloud on Kubernetes (ECK) admin; 2+ years Elasticsearch DSL; 5+ years Kubernetes; strong ELK stack knowledge; scripting in Python, Bash, JavaScript; U.S. citizenship; active clearance (TS/SCI eligible); DHS suitability; Bachelor's in Software Engineering or Computer Science.
ELK Stack, Elasticsearch, Kibana, Logstash, Beats, Elastic Cloud on Kubernetes, Kubernetes, Python, Groovy, Bash, JavaScript
3w
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Software Engineer (2026-0079)
Chantilly, Virginia, United States
OnsiteFull Time
12+ YOEStrong programming experience, big data tech exposure, cloud DevOps, and TS/SCI with Polygraph.
Python, NodeJS, Elastic Search, Mongo DB, Docker, Kubernetes, Rabbit MQ, Nifi, Ansible, CloudFormation, ELK, Prometheus, Grafana, Maven, Jenkins
1d
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Tech Consulting - Full-Stack Java Developer - Senior - Multiple Locations (Los Angeles, CA, US, 90017-5418)
Los Angeles or New York City or Hoboken or San Francisco or San Jose or Seattle or Boston or Chicago or St. Louis or Philadelphia or Dallas or Houston or Irvine or San Diego or Portland or Denver or Minneapolis or Nashville or Phoenix or Pittsburgh or McLean or Atlanta or Charlotte or Detroit or Columbus or Cleveland or Akron or Miami
$103k-$188k/yr HybridFull Time
3+ YOE3+ years software engineering; Bachelor's in CS or related field; proficient in at least one modern backend language; full-stack experience; REST APIs; React/Angular or similar; Git; cloud familiarity; travel up to 25%.
Python, Java, JavaScript, TypeScript, React, Angular, Git, Node.js, Spring, .NET, Docker, Kubernetes, REST APIs
1mo
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Senior Consultant, Full Stack Engineer - Digital & Insights in United States, District of Columbia, Washington
Washington, District of Columbia, United States
$77k-$118k/yr HybridFull Time
3+ YOE3+ years in distributed systems, full stack web development, and client-facing technical work.
Terraform, Docker, Kubernetes, AWS, Python, Spark, React, AI/ML platforms
3mo
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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
3w
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Systems Engineer Mid - FinOps Cloud Engineer
Fort Meade, Maryland, United States
HybridFull Time
8+ YOESenior FinOps cloud engineer with multi-cloud experience, strong cost optimization, governance, and security clearances.
Terraform, Python, PowerShell, Bash, AWS, Azure, GCP, OCI
2w
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ZenPoint Solutions LLC - Cloud Engineer III (Senior) - U.S. Citizenship Required
Washington, District of Columbia, United States
OnsiteFull Time
7+ YOE7+ years cloud engineering experience; active Top Secret clearance; U.S. citizenship; hands-on IaC (Terraform/CloudFormation); Azure Government; Kubernetes; Docker; Python/Bash/PowerShell; 5 days onsite in Washington, DC.
Terraform, CloudFormation, Azure Government, AWS, Kubernetes, Docker, Python, Bash, PowerShell
1mo
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Site Reliability Engineer
Washington, District of Columbia, United States
HybridFull Time
5+ YOE5+ years systems engineering; Bash, Python, PowerShell; Windows API & integrations; cloud (SaaS/IaaS/PaaS); Microsoft Entra admin; compliance policies; ServiceNow development; Public Trust eligibility; Bachelor’s in CS; ITIL v3/v4 preferred.
Microsoft Entra, ServiceNow, Bash, Python, PowerShell, APIs, Runbooks, Intune, DLP, RBAC, SaaS, IaaS, PaaS, Glide, JavaScript
1w
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SR REACTOR ENGINEER (OPERATIONS)
Atlanta or Naperville or Rockville or King of Prussia or Arlington
$156k-$197k/yr OnsiteFull Time
1+ YOERequires at least 1 year specialized experience in design, operation, inspection of nuclear plant components; knowledge of NRC regulations; ability to manage complex engineering projects.
Python, MATLAB, Simulations, Machine Learning, Digital Twins
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
6d
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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
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NASA Software Engineer (cFS)
Greenbelt, Maryland, United States
OnsiteFull Time
15+ YOEBachelor's in CS/Math/Engineering; 15 years software experience including cFS and COSMOS; C, scripting, and Linux; background check and drug screen.
CFS, COSMOS, Python, Ruby, Bash, Linux
1mo
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AWS Cloud Software Engineer
Fort Meade, Maryland, United States
OnsiteFull Time
20+ YOEExtensive SWE experience; BS in Computer Science; TS/SCI with poly; 20+ years in similar programs.
AWS, Docker, Kubernetes, Ansible, Terraform, Keycloak, Mockito, JUnit, Python, Jupyter
1mo
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Principal Engineer - Controls
Hagerstown, Maryland, United States
$92k-$148k/yr OnsiteFull Time
5+ YOEBachelor's degree in mechanical/electrical engineering with 5+ years of related experience; strong vehicle controls experience; CAN bus; MATLAB/Simulink; AMEsim; dSPACE; Autosar; C/C++; Python.
MATLAB/Simulink, AMEsim, dSPACE, Vector tools, Autosar, C/C++, Python, ADAMS
2mo
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DevOps Engineer
Annapolis Junction, Maryland, United States
$91-$103/hr OnsiteFull Time
10+ YOE10+ years in DevOps/SRE, AWS infra, CI/CD, automation; TS/SCI w/ polygraph clearance;Bachelor's in engineering/science; Java or Python experience.
AWS, Docker, Kubernetes, Ansible, Jenkins, CI/CD, Linux, PostgreSQL, MySQL, Elasticsearch, Kafka, Redis, Python, Java
3w
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Sr. Data Engineer
Vienna, Virginia, United States
$170k-$185k/yr RemoteFull Time
Strong Python, PySpark, SQL; API integration; Databricks/Lakehouse; production data pipelines; security and data governance.
Python, PySpark, SQL, REST API, Databricks, Delta Lake, APIs
HiringCafe market data
Senior Python Developer Jobs market signals in Leesburg, VA, 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
2,200+
Hiring companies
510+
Fresh sample
52% new in 30d
Salary visibility
65% show pay
Companies appearing in this market
Cipher Tech SolutionsExelonEYGlobal Enterprise ServicesSAPAmtrakARKA GroupAstrion
Work location mix in visible results
Onsite: 32Hybrid: 22Remote: 9