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Lead Python Developer Jobs in Winchester, VA, US

74 lead python developer jobs from 43 companies hiring in Winchester, VA, US.

All jobs in Winchester, VA, USLead Python Developer Jobs in United States
Nearby:Front Royal·Martinsburg·Leesburg·Ashburn·Berryville·Hagerstown·Frederick·South Riding·Purcellville·Sterling·Strasburg·Ballenger Creek·Centreville·Linton Hall·Germantown·Reston·Oak Hill·Herndon·Chantilly
74 jobs- Winchester • 50 miles
1mo
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Lead Software Engineer (Python, Java, JS, Postgres, MySQL, DynamoDB, Milvus/Pinecone)
McLean or Chicago
$179k-$225k/yr OnsiteFull Time
Capital One
Capital OneNYSE: COF: Financial services offering credit cards, banking, and loans.
4+ YOELead software engineer with full stack skills (Python, JavaScript, Java), cloud (AWS), 4+ years software engineering, Bachelor's degree.
Python, Java, JavaScript, TypeScript, SQL, Go, HTML/CSS, Docker, Kubernetes, AWS
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Lead Full Stack Developer
Arlington or Herndon
$171k-$257k/yr OnsiteFull Time
Two Six Technologies
Two Six Technologies: Develops cybersecurity and data systems for national security missions.
7+ YOELead full stack developer with 7+ years; TS clearance with SCI eligibility; strong Python/JavaScript; in-person in Arlington/Herndon; BS in Computer Science or related field.
Python, JavaScript, Linux, Kubernetes, Jenkins, GitLab, AWS, OpenStack, Ansible, Terraform, OpenTofu
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Software Engineer Lead
Herndon or Aurora
$135k-$216k/yr OnsiteFull Time
Peraton
Peraton: National security and mission-critical government technology services provider.
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)
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Analysis Lead Engineer
Chantilly, Virginia, United States
RemoteFull Time
QinetiQ US
QinetiQ USLondon Stock Exchange: QQ: Provides technology-based solutions and products for defense and security markets.
10+ YOELead performance analysis, requirements derivation, and validation for SDA Enterprise; 10+ years in satellite/ground systems; TS/SCI eligible; proficiency with AFSIM, Python, STK.
AFSIM, Python, STK
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3w
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Lead Software Engineer - Gov Cloud
Reston, Virginia, United States
$130k-$195k/yr OnsiteFull Time
Icertis
Icertis: Provide AI-powered contract lifecycle management software for enterprises.
Secure, scalable software development; cloud automation; DevOps; Azure-focused; cross-functional communication.
Terraform, Ansible, ARM, Azure DevOps, C#, ASP.NET, Java, JavaScript, Python, Docker, AKS, Azure Functions, PowerShell, Bash, JSON, YAML
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2w
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Software Engineer (lead Python programming) – Level 4
Fairfax, Virginia, United States
$142k-$213k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Develops and manufactures advanced aerospace, defense, and space systems.
8+ YOESenior software engineer with 3+ years Python, strong OO design, leadership experience, TS/SCI clearance preferred.
Python, Gitlab, Containers, DevOps
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2w
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Lead AI/ML Engineer
McLean or Chantilly
$175k-$225k/yr HybridFull Time
Raft
Raft: Builds AI and data platforms for U.S. national defense.
8+ YOEAdvanced degree in CS/AI; 8+ years in AI/ML or software; production ML experience; Python and ML frameworks; cloud/Kubernetes; leadership; security clearance: Secret with TS/SCI readiness.
Python, PyTorch, TensorFlow, Scikit-learn, Kubernetes, AWS, CI/CD, Docker
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1w
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Lead Software Engineer-Embedded Computing Software-Onsite
Ashburn, Virginia, United States
$109k-$145k/yr OnsiteFull Time
Curtiss-Wright
Curtiss-WrightNYSE: CW: Engineers and manufactures critical components for aerospace and defense.
8+ YOESenior software engineer with embedded systems experience, DoD security, Linux, C/C++, and embedded software development.
C, C++, Linux, VxWorks, Python, LabVIEW, Git, JIRA, Confluence, DOORS, Yocto, Petalinux, GCC
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1mo
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Lead Software Engineer (Big Data / Platform Architect)
Sterling, Virginia, United States
OnsiteFull Time
Nightwing
Nightwing: Provides advanced cyber and intelligence solutions for national security.
6+ YOE4-8 years backend and frontend, 6-8 years AWS/Linux, 2-4 years AI/ML, strong Python/Java, Agile, SQL/NoSQL, cloud and search tech.
Python, Java, Angular, AWS, Linux, SQL, NoSQL, ElasticSearch, Solr, OpenSearch, ETL, Docker, Podman
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Lead Processing Engineer
Washington or Virtual
HybridFull Time
Constellis
Constellis: Provides private security, tactical training, and risk management services.
8+ YOE8+ years in data processing/streaming; 5+ years Python; 5+ years event-driven architectures; schema enforcement at scale; geospatial processing; Kafka; Kubernetes/cloud-native; TS clearance eligible.
Python, Kafka, Kubernetes, Cloud, Geospatial processing
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Lead Quantitative Engineer – Single Family
Washington or Reston
$141k-$184k/yr HybridFull Time
Fannie Mae
Fannie MaeOTCQB: FNMA: Providing liquidity and stability to the U.S. housing market.
4+ YOE4+ years in software/quantitative engineering; strong Python; Linux; SQL/Tableau; knowledge of modeling and governance.
Python, GitHub Copilot, ChatGPT, MS Copilot, SQL, Tableau, C++
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Lead Full Stack Engineer - AI/ML Systems
Reston, Virginia, United States
$121k-$189k/yr HybridFull Time
Noblis
Noblis: Provides science and technology solutions for government missions.
6+ YOELead full stack engineer with 6+ years software development, 3+ years full-stack design/deploy, 2+ years AI/ML in production; US Citizenship and TS/SCI clearance required.
Python, JavaScript, TypeScript, Vue, React, Flask, Django, FastAPI, Express.js, PostgreSQL, MySQL, Elasticsearch, OpenSearch, Docker, Kubernetes, OpenShift, AWS, GovCloud, Terraform, Ansible, Git, GitLab, GitHub, Ray Serve, vLLM, Ollama, TorchServe, Triton
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1mo
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Lead Systems Engineer (Modeling, Simulation, & Analysis)
Chantilly, Virginia, United States
HybridFull Time
BryceTech
BryceTech: Engineering and analytics services for aerospace and defense agencies.
10+ YOETS/SCI clearance; Bachelor's in Science/Engineering/Math; 10+ years in modeling, simulation, and analysis; strong requirements development; space systems experience; effective communication.
Aerospace modeling tools, Python, STK, AFSIM
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1mo
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Lead Machine Learning / Data Science Engineer
Reston, Virginia, United States
OnsiteFull Time
CapTech
CapTech: Provides technology and management consulting services to large enterprises.
7+ YOELead ML/DS engineer with 7+ years in data engineering and ML; cloud platforms; Python/Scala; SQL/Spark; Docker; Snowflake/Databricks; LLMs; DevOps; cross-domain experience; leadership.
Python, Scala, SQL, Spark, NoSQL, Snowflake, Databricks, Azure SQL, Amazon RDS, Docker, Kubernetes, LLMs, LangChain, RAG, pydantic, n8n, Mistral
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6d
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Radio Frequency Software Engineer Lead - 1648
Reston, Virginia, United States
RemoteFull Time
Global InfoTek
Global InfoTek: Develops advanced cybersecurity software and systems for defense agencies.
7+ YOE7-10 years RF software engineering, Python, Linux, CI/CD, MySQL/PostgreSQL, remote work; US citizenship and Public Trust.
Python, Linux, GitLab, MySQL, PostgreSQL, SQLite, FlatBuffers, Protocol Buffers, React, D3
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2mo
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Lead Kubernetes Platform Engineer (AWS/EKS) - TS/SCI w/Polygraph
Herndon, Virginia, United States
$213k-$288k/yr HybridFull Time
GDIT
GDITNYSE: GD: Provides IT and mission services to government agencies.
15+ YOE15+ years experience; TS/SCI w/ Polygraph; lead a team; Kubernetes, AWS, EKS, Terraform HCL; Python; shell scripting; multi-tenant Kubernetes platforms; security clearances.
AWS, Kubernetes, Terraform, Python, Shell Script
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3w
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Senior Full Stack Developer
Herndon, Virginia, United States
OnsiteFull Time
Karsun Solutions
Karsun Solutions: Provider of IT modernization and software development for government agencies.
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
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1mo
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Engineer Senior Principal – Lead Mission Analyst
Broomfield or Chantilly
$133k-$226k/yr OnsiteFull Time
BAE Systems
BAE SystemsLondon Stock Exchange: BA: Designs and manufactures advanced defense and aerospace systems.
8+ YOE2+ MgmtBS in Engineering or related field; 8+ years experience; Top Secret/SCI clearance; Python; strong communication; leadership and mentoring; tool development and data analysis.
Python, Modeling and Simulation, STK, AFSIM, Model Based Systems Engineering
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4d
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Lead Data Engineer / Mission Data Pipeline
Reston, Virginia, United States
OnsiteFull Time
ACT1 Federal
ACT1 Federal: Integrated program management and technical services for defense missions.
9+ YOE9+ years experience with relevant degree; active Top Secret clearance; 7+ years in DoD/IC environments; experience with data pipelines and structured data formats (JSON, CSV, XML).
JSON, CSV, XML, Python, Pandas, NumPy, ETL, Data Pipelines, NiFi, Airflow, Palantir Foundry, REST APIs
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1mo
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Senior Software Systems Engineer, Product Owner
Chantilly or Seal Beach
OnsiteFull Time
Boeing
BoeingNYSE: BA: Designs and manufactures commercial aircraft, defense systems, and satellites.
5+ YOE5+ years in software development with Java/C/C++/Python; experience leading software projects; active Top-Secret/SCI eligibility with CI Polypost-start.
Java, C++, Python, HTML, CSS, JavaScript, React, Spring Framework, Hibernate, RDBMS, NoSQL, REST/Open API, CI/CD, Jenkins, GitLab CI, Maven, Gradle, JMS, WebLogic, SQL Server, Oracle, MySQL, MongoDB
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2mo
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Data Engineer, Lead
Chantilly, Virginia, United States
$78k-$176k/yr HybridFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Providing professional consulting and technical services to government agencies.
5+ YOE5+ years data pipeline and ETL experience; Java, NiFi, Python or Scala; 3+ years SQL/PostgreSQL/Kafka; AWS RDS/Aurora; TS/SCI clearance; BS in CS or Engineering; ability to obtain Security+ within 6 months.
AWS, NiFi, Kafka, Kafka Connect, Kafka Streams, Kubernetes, Helm, ArgoCD, Grafana, Prometheus, Elasticsearch, SQL, PostgreSQL
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1w
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Principal AI Engineer
Herndon, Virginia, United States
OnsiteFull Time
Clarity Innovations
Clarity Innovations: Provides software and data engineering for national security missions.
6+ YOELead AI engineer with 6-10 years in AI/ML, cloud-native infra, Kubernetes, Python/Go, and experience deploying AI services; TS/SCI clearance preferred.
Kubernetes, Python, Go, REST APIs, vLLM, OpenAI, AWS Bedrock, Azure OpenAI
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2w
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IS Tech Lead (Cloud)
Columbus or Chicago or Detroit or Hagerstown or Charlotte or Indianapolis or Dallas or Pittsburgh or Houston
$70k-$140k/yr HybridFull Time
Huntington
HuntingtonNASDAQ: HBAN: Provides regional commercial, consumer, and mortgage banking services.
5+ YOEBachelor's degree, 5+ years experience, Python, AWS and/or GCP, RESTful API, strong customer service, leadership, and collaboration.
Python, AWS, GCP, RESTful API
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2d
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Testing Lead/Architect
Ashburn, Virginia, United States
HybridFull Time
Niyam IT
Niyam IT: IT services and data analytics for government agencies.
10+ YOE4+ MgmtUS citizen; bachelor’s in CS/Engineering; 10+ years IT experience; expert in automation frameworks; Kubernetes, Helm, Podman; AWS; CI/CD; Python/Node.js/Go; strong communication; onsite 4 days/week in Ashburn, VA.
Kubernetes, Helm, Podman, AWS, Python, Node.js, Go, Playwright, Selenium
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1mo
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Senior Software Systems Engineer, Product Owner
Chantilly or Seal Beach
$158k-$214k/yr OnsiteFull Time
Boeing
BoeingNYSE: BA: Designs, manufactures, and sells aircraft, satellites, and defense systems.
5+ YOE5+ years in CS with OO design; Java/C++/Python full-stack; lead projects; active TS/SCI with CI poly; security clearance.
Java, C++, Python, HTML, CSS, JavaScript, React, Spring, Hibernate, REST API, Jenkins, GitLab CI, JMS, WebLogic, Maven, Gradle, SQL, NoSQL, MongoDB, SQL Server, Oracle, MySQL
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2w
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Engineer Senior Principal – Lead Mission Analyst
Aurora or Chantilly
$133k-$226k/yr OnsiteFull Time
BAE Systems
BAE SystemsLondon Stock Exchange: BA.: Produces advanced defense, aerospace, and information security systems.
8+ YOE8+ years related experience; BS in Engineering or related field; TS/SCI clearance or ability to obtain; Python programming; strong communication and analytic modeling.
Python
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2w
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Engineer Senior Principal – Lead Mission Analyst
Aurora or Chantilly
$133k-$226k/yr OnsiteFull Time
BAE Systems
BAE SystemsLondon Stock Exchange: BA: Provides advanced defense, aerospace, and security technology solutions.
8+ YOEBS degree in engineering with 8+ years related experience; TS/SCI clearance with ability to obtain; Python programming; strong written and verbal communication; analytics and modeling experience.
Python, modeling and simulation, data analysis
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1w
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Principal Software Engineer
Herndon, Virginia, United States
$139k-$185k/yr RemoteFull Time
ATPCO
ATPCO: Global repository for airline pricing and merchandising data.
5+ YOELead design and build of a high-performance pricing engine; expert in distributed systems and modern languages.
C/C++, Rust, Go, Python, Linux, Distributed systems, APIs, Zero-copy, Lock-free data structures
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2mo
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Innovation and Automation Data Engineer
Chantilly or Herndon
OnsiteFull Time
Bespoke Technologies
Bespoke Technologies: Provides technology and mission support for national security agencies.
5+ YOE2+ Mgmt5+ years in data engineering with automation focus; 2+ years in technical leadership; expert Python and SQL; experience with Databricks or Snowflake; Terraform and CI/CD; strong data architecture knowledge.
Python, SQL, Databricks, Snowflake, Terraform, CI/CD, GitLab CI, Jenkins, Airflow, Great Expectations
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2mo
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Technical Implementation Lead
Atlanta or McLean
$87k-$198k/yr HybridFull Time
Booz Allen
Booz AllenNYSE: BAH: Provides management and technology consulting services to government and commercial clients.
7+ YOE7+ years architecture and development in cloud, AWS/hybrid; Python/.NET/Java; CI/CD; Gen-AI; leadership; Public Trust eligibility; Bachelor’s.
AWS, GitHub Actions, Python, Java, Dotnet, Linux, Unix, GitHub Copilot, Codex, Claude Code
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1mo
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Platform Control Lead
Clarksburg, Maryland, United States
$175k-$250k/yr OnsiteFull Time
Forterra
Forterra: Develops autonomous ground vehicle systems and software for defense.
5+ YOE3+ MgmtLead platform control software team; develop and implement control algorithms; integrate with vehicle actuation; strong leadership and collaboration.
C++, Python, MATLAB/Simulink
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2mo
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Lead Kubernetes Platform Engineer (AWS/EKS) - TS/SCI w/Polygraph
Herndon, Virginia, United States
$213k-$288k/yr HybridFull Time
General Dynamics Information Technology
General Dynamics Information TechnologyNYSE: GD: Provides IT and mission services to government and defense agencies.
15+ YOE15+ years of related experience; Bachelor's degree or equivalent experience; TS/SCI with Polygraph clearance; experience with AWS, EKS, Terraform, Kubernetes; leadership experience.
AWS, Kubernetes, EKS, Terraform, Python, Shell scripting, Terraform HCL, Istio, VPC, RDS, S3, KMS, IAM, EBS, EFS
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1d
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Senior Backend Software Engineer
El Segundo or Chantilly or Colorado Springs
$129k-$194k/yr OnsiteFull Time
The Aerospace Corporation
The Aerospace Corporation: Provides technical expertise and research for national space programs.
8+ YOE8+ years in software/data architecture; strong cloud-native data-intensive software; experience leading teams; security clearance eligibility; onsite in El Segundo, CA with possible relocation.
Java, Python, Go, Kubernetes, Apache Airflow, Apache Spark, Neo4j, AWS Neptune, Palantir Warp Core, CKAD
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1mo
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Managing Director - Account Lead (Finserv/Banking)
Ashburn, Virginia, United States
OnsiteFull Time
Infinitive
Infinitive: Consultancy for modernizing and monetizing enterprise data through AI.
10+ YOE10+ years in consulting or business development; proven multi-million-dollar book; banking/financial services experience; strong delivery and sales leadership; Bachelor's in business; excellent communication; DC metro onsite.
SQL, Python, AWS, Salesforce, LinkedIn, Microsoft Office, Google Suite
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2w
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Lead Flight Test Instrumentation Engineer
Manassas, Virginia, United States
OnsiteFull Time
Electra
Electra: Developing hybrid-electric aircraft for sustainable regional air mobility.
5+ YOEBachelor's in mechanical, aerospace, electrical, or computer engineering; 5+ years designing and integrating aircraft instrumentation; data acquisition experience; sensor performance knowledge; able to work independently in a fast-paced test environment.
TTC, NI, ACRA, CAN bus, ARINC 429, Python, C++
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2mo
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Cyber Threat Intelligence Lead
Reston, Virginia, United States
HybridFull Time
Agile Defense
Agile Defense: Provides IT and cybersecurity services to federal agencies.
7+ YOELead cyber threat intelligence with 7+ years in cyber security, TS/SCI eligible, CSOC experience, threat analysis, and detection content development.
SIEM, EDR, Malware Analysis, Python, PowerShell, VBScript, HTML, XML, Threat Hunting, Forensics
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2mo
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Director, Software Implementation Teams Lead – Corporate Platform Application
Centreville or London or Columbia
HybridFull Time
S&P Global
S&P GlobalNYSE: SPGI: Provides financial ratings, benchmarks, and data for global markets.
7+ YOE2+ MgmtLead platform modernization, migration, and consolidation; manage engineering teams; ensure reliability and security of enterprise platforms.
Java, C#, Python, Go, TypeScript
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5d
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Senior Space Surveillance Engineer, Data Fusion and Astrodynamics
Chantilly or Aurora
$150k-$250k/yr HybridFull Time
Slingshot Aerospace
Slingshot Aerospace: Space operations platform for satellite tracking and traffic coordination
7+ YOESenior role leading data fusion and astrodynamics; 7+ years experience; BS+ in aerospace/engineering/math; Python/C++; TS clearance with SCI eligibility.
Python, C++, Linux
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2mo
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Cyber Threat Intelligence Lead
Ashburn, Virginia, United States
OnsiteFull Time
SOSi: Delivers mission-critical technology and intelligence services to governments.
7+ YOESeven years in cyber security with intelligence analysis; strong experience in host/network defense, forensics, and content development; scripting in multiple languages; TS/SCI eligible; CISSP certification.
Python, VBScript, C++, HTML, XML, CISSP
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3mo
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Cloud Architect/ Technical Lead
Chantilly, Virginia, United States
$130k-$265k/yr OnsiteFull Time
Accenture Federal Services
Accenture Federal ServicesNYSE: ACN: Provides technology and management consulting to the U.S. government.
10+ YOE5+ Mgmt10+ years tech experience; Bachelor's degree; cloud platforms Azure/AWS/GCP; 5+ years container-based apps; 10+ years software development (Python, DevOps); 5+ years sysadmin (Windows/Linux); 5+ years leading software projects; active TS/SCI with polygraph.
Azure, AWS, Google Cloud Platform, Python, Git, DevOps, PowerShell, Bash, Windows, Linux
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HiringCafe market data

Lead Python Developer Jobs market signals in Winchester, 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
74
Hiring companies
43
Fresh sample
39% new in 30d
Salary visibility
70% show pay

Companies appearing in this market

BAE SystemsBooz Allen HamiltonCapital OneBoeingNorthrop GrummanFannie MaeNightwingNoblis

Work location mix in visible results

Onsite: 38Hybrid: 20Remote: 3

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