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Python Software Developer Jobs in Countryside, VA, US
2,300+ python software developer jobs from 500+ companies hiring in Countryside, VA, US.
3d
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ME00583-Software Engineer 3
Annapolis Junction, Maryland, United States
$175k-$235k/yr HybridFull Time
20+ YOEActive Top Secret/SCI clearance with NSA Full Scope Polygraph; 20 years as a software engineer in similar programs; Bachelor's in CS or related field; 4 extra years experience may substitute for degree; familiarity with Gitlab, Maven, Confluence, JIRA; strong debugging, testing, and software development skills.
Java, Python, NiFi, Docker, Kubernetes, Gitlab, Maven, Confluence, JIRA
4d
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Sr. Software Engineer/Developer
Washington, District of Columbia, United States
$135k-$234k/yr OnsiteFull Time
5+ YOEBS in Engineering or CS with 10-12 years' experience; MS 8-10 years; PhD 5-7 years; DoD TS/SCI clearance; proven software development experience; multiple languages; Linux front-end/back-end; DevOps tools; strong communication and collaboration.
Java, Python, C++, JavaScript, Ruby, Motif, Linux, Git, Jira, Docker, Kubernetes, CI/CD
1mo
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Software Developer 3 - 27955 (Columbia, MD, Maryland, United States)
Columbia, Maryland, United States
$111k-$159k/yr OnsiteFull Time
5+ YOE5+ years of software development with BS; 3+ with MS; 0 with PhD; or HS with 9 years experience; BS in Software Engineering, Computer Science, or Robotics; 5+ years embedded software in C++/Python; Linux experience; ability to obtain government clearance.
C++, Python, Linux
1mo
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Software Integration Engineer
Chantilly, Virginia, United States
$87k-$130k/yr OnsiteFull Time
2+ YOEBachelor’s in STEM; 2+ years web app development (Java/Python); RESTful services; Cloud; Agile with Atlassian tools; Linux/Windows; travel willingness; ability to obtain security clearance.
Java, Python, Spring Framework, REST, Cloud, Git, Subversion, Confluence, JIRA, Bitbucket, SourceTree
2mo
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Python / AI Engineer
Washington, District of Columbia, United States
OnsiteFull Time
3+ YOEDegree in Computer Science, Data Science, AI or related field; 3-5 years AI development; strong Python; experience with NLP, generative AI, cloud, and LLM integrations.
Python, TensorFlow, PyTorch, LangChain, LangGraph, Google Cloud, Azure, OpenAI, Databricks, Azure Cognitive Services, Cosmos DB, Azure Data Factory
1mo
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Senior Software Engineer - FFPP-8775
Annapolis Junction, Maryland, United States
$170k-$185k/yr OnsiteFull Time
7+ YOESeven+ years as a software engineer; BS in Computer Science; AI/ML development/integration; Terraform with AWS; C++, Python and/or Golang; high-performance/GPU apps; large-scale streaming data analytics.
C++, Python, Golang, Terraform, AWS, GPU programming, AI/ML
1mo
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Signals Software Engineer
Annapolis Junction, Maryland, United States
$63-$77/hr OnsiteFull Time
4+ YOEExperience in RF signal processing software (detectors, demodulators, protocol processors); translate requirements to design; develop in C++/Java on Linux; RF concepts; TS/SCI clearance with polygraph.
C++, Java, Python, MATLAB, SIMULINK, Eclipse, Google Protocol Buffers, Git, Subversion, GNU Radio
2w
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Aerospace Flight Software Engineer (cFS)
Greenbelt, Maryland, United States
OnsiteFull Time
15+ YOEDevelop, test, and integrate flight software; write cFS apps; work with C, Python, Ruby; 15+ years experience; BS in a related field.
C, Python, Ruby, COSMOS
1mo
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Senior Software Engineer, Strategic Customer Engagements
Arlington, Virginia, United States
$143k-$179k/yr HybridFull Time
6+ YOE6+ years software engineering; geospatial development experience; Python; AWS or GCP; strong customer engagement; able to travel 30-50%; eligible for security clearance.
Python, AWS, GCP, OpenLayers, Rasterio, Fiona, Shapely, GDAL
1mo
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Senior Software Developer (Hybrid)
Annapolis Junction, Maryland, United States
HybridFull Time
9+ YOEProficiency in OOP with Python or Java (~9 years); at least one language required, with experience in the other; reverse engineering or LLM app development skills preferred; testing and RPC familiarity a plus.
Python, Java, IDA, Ghidra, Langchain, LangGraph, LangSmith, vector databases, gRPC, JUnit, Pytest, ARM, PPC
2w
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Senior Software Engineer (Production Support)
Minneapolis or Washington D.C.
$92k-$164k/yr HybridFull Time
8+ YOESenior software engineer with 8+ years in software development, 4+ in production support; strong React, Spring Boot, Azure; Kubernetes, CI/CD; SQL; GenAI/AI monitoring; able to work on call and off-hours.
React, Spring Boot, Azure, Kubernetes, CI/CD, SQL, Java, Python, Splunk, App Insights, Dynatrace, GenAI, CoPilot
3w
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Associate Software Engineer
Reston, Virginia, United States
OnsiteFull Time
Bachelor’s degree in computer science, mathematics, physics, or related field; proficiency in Java, TypeScript, Python, or C++; strong OO programming; full-stack web development experience; US citizenship with eligibility for security clearance.
Java, TypeScript, Python, C++, MongoDB, RabbitMQ, Spring Boot, React, Redux, WebGL, OpenGL
1w
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Software Engineer (lead Python programming) – Level 4
Fairfax, Virginia, United States
$142k-$213k/yr OnsiteFull Time
8+ YOESenior software engineer with 3+ years Python, strong OO design, leadership experience, TS/SCI clearance preferred.
Python, Gitlab, Containers, DevOps
2mo
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Software Developer, Senior (TS/SCI)
Arlington, Virginia, United States
OnsiteFull Time
10+ YOEActive TS/SCI clearance required; 10+ years software development; master’s degree or related certifications.
Java, Python, C#, JavaScript, TypeScript, REST, Power BI, Power Automate, AWS, CI/CD, DevSecOps
2mo
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Senior Software Engineer
Annapolis Junction, Maryland, United States
OnsiteFull Time
14+ YOESenior software engineer with cloud architecture, data visualization, Python/Java, and leadership experience; TS/SCI clearance with polygraph; Bachelor's degree in CS or related field plus 14 years of experience; experience with MySQL/PostgreSQL and web-based server applications.
Python, Java, MySQL, PostgreSQL, Linux, Web-based server applications, Data visualization
1mo
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Software Developer Applications
Washington, D.C. or Kansas City
$138k-$178k/yr HybridFull Time
3+ YOEBachelor's in CS/SE, 3+ years in federal/health IT; Java/C#/Python; HL7/FHIR; Cerner/EHRM experience preferred.
Java, C#, Python, HL7, FHIR, Cerner, Oracle Health
4d
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Ground Station Systems Software Engineer
Chantilly, Virginia, United States
OnsiteFull Time
Design, develop, deploy, and maintain ground station software; strong Linux, Rust/Python; DevOps; telemetry; network and infrastructure as code.
Rust, Python, React, AWS, Terraform, Ansible, Packer, GitLab CI/CD
3d
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Embedded Software Engineer IV
Germantown, Maryland, United States
$91k-$130k/yr HybridFull Time
5+ YOEBachelor’s degree in computer engineering, Electrical Engineering, Software Engineering, Computer Science, or related field with 5+ years of related experience; experience with C/C++, Bash/Python, Linux/RTOS; knowledge of safety-critical software and rail standards; strong communication and teamwork.
C, C++, Bash, Python, Linux, RTOS, QNX, FreeRTOS
3mo
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Software Engineer (TS/SCI) {S}
Chantilly, Virginia, United States
OnsiteFull Time
4+ YOEActive TS/SCI clearance; degree in CS/EE/Physics or related field or 4 years software/signals experience; interest in remote sensing; proficient in Python/C++/Rust or similar; Linux and/or AWS familiarity.
Python, C++, Rust, Linux, AWS
5d
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Software Engineers
Annapolis Junction, Maryland, United States
$100k-$200k/yr OnsiteFull Time
1+ YOEActive TS/SCI with POLY; software development experience; strong problem-solving skills.
C, C++, Java, Python, Software Development Tools, Databases
2mo
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Software Engineer - AI Infrastructure
Minneapolis or Washington
HybridFull Time
Experience with LLM infrastructure, Kubernetes, PyTorch; security clearance eligible; Python proficiency.
PyTorch, Kubernetes, NVIDIA drivers, NVIDIA Kubernetes Container Toolkit, vLLM, Python
2w
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Staff Software Developer (TS/SCI)
Herndon, Virginia, United States
$113k-$188k/yr OnsiteFull Time
5+ YOEUS citizen with TS/SCI clearance and CI poly, BS in CS/SE/IS or related, 5+ years software development, backend focus.
Java, Python, JavaScript, Spring Boot, Docker, Kubernetes, OpenShift, Rancher, Jenkins, Helm, Bash, Git, Bitbucket, Gradle, OpenSearch, Elasticsearch, PostgreSQL, Kibana
1mo
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Senior Software Engineer, Full Stack
Arlington, Virginia, United States
$135k-$180k/yr OnsiteFull Time
6+ YOE6+ years software engineering; experience profiling and optimizing data-intensive web apps; TS or Python; Bachelor's degree
TypeScript, Python, React, Cesium, Kubernetes, HTML/CSS
1w
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Software Engineer SWE2 - 26010
Hanover, Maryland, United States
OnsiteFull Time
Front-end and back-end development across JavaScript/TypeScript, React, Node.js, Rust, Python; microservices; cloud tooling; testing; data stores; messaging; and security labels.
JavaScript, TypeScript, React, Node.js, Rust, Python, Shell scripting, Kubernetes, Helm, Microservices, Service mesh, Load balancing, Terraform, Ansible, Salt, WebSockets, Grafana, InfluxDB, Elasticsearch, Redis, MySQL, Apache Superset, RabbitMQ, Kafka, Neo4j
2w
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Staff Software Developer (TS/SCI)
Herndon, Virginia, United States
$92k-$195k/yr OnsiteFull Time
5+ YOEUS citizen with TS/SCI clearance and CI poly; BS in CS/Software Eng; 5+ years backend software dev; Java/Python/JS; REST APIs with Spring Boot; Docker/Kubernetes/OpenShift; Jenkins/Git/Helm; Linux scripting; on-site in Herndon, VA.
Java, Python, JavaScript, Spring Boot, Docker, Kubernetes, OpenShift, Rancher, Jenkins, Git, Bitbucket, Gradle, Bash, Shell, OpenSearch, Elasticsearch, Keycloak, Fluent Bit, Cesium, PostgreSQL
1mo
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Senior Software Developer - Clearance Required
Reston or Joint Base Anacostia-Bolling
HybridMultiple Commitments Available
6+ YOE6+ years in distributed software development; frontend tech stack (Vue, JavaScript, TypeScript); backend services; Agile; TS/SCI clearance preferred.
Vue, JavaScript, TypeScript, React, Angular, Linux, Git, Jira, Confluence, Artifactory, APIs, Relational databases, NoSQL, Agile, Security-focused development, CI/CD, Python, Java, Docker, Kubernetes, OpenShift, Jenkins, Keycloak, OAuth2, JWT, SonarQube, OWASP ZAP, Fortify, CI/CD pipelines, AWS, Azure, CI/CD
1mo
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Senior Software Engineer – Biomedical Informatics
Rockville, Maryland, United States
$140k-$160k/yr OnsiteFull Time
5+ YOE5+ years software development; Python; ML models; AWS; PostgreSQL; Docker; Linux; Git; CI/CD; independent cross-team delivery.
Python, AWS, Docker, PostgreSQL, Git, Linux, CI/CD, OMOP, vector databases
1w
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Senior Software Engineer
Arlington, Virginia, United States
HybridFull Time
7+ YOE7+ years C++ development; BS in Electrical Engineering or Computer Science; US work authorization; build system experience; technical leadership; on-site/Hybrid in Arlington, VA.
C++, CUDA, TensorRT, Python, PyTorch, CMake, Docker, GitLab, GoogleTest, pytest
2w
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Lead Software Engineer - Gov Cloud
Reston, Virginia, United States
$130k-$195k/yr OnsiteFull Time
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
1w
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Software Engineers
Annapolis Junction or Fort Meade
OnsiteFull Time
Develop, maintain, and optimize software systems; analyze performance; design databases; work with Java/C/C++, Python; exposure to web stacks; TS/SCI clearance.
Java, JavaScript, C, C++, Python, Angular, Docker, Kubernetes, Unix/Linux, MongoDB, Express, React, Node, Go, Vue.js, REST, SOAP, Spring, Hibernate
2mo
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Lead Software Engineer (Back-End)
Germantown, Maryland, United States
$120k-$170k/yr HybridFull Time
5+ YOE5+ years in software development (C#, .NET); lead development projects; 1+ year cloud (Azure/AWS/Snowflake); strong code reviews and mentoring.
C#, .NET, SQL, JavaScript, Azure, AWS, Snowflake, Python
5d
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PNT Flight Software Developer
Houston or Glen Burnie
$95k-$203k/yr OnsiteFull Time
5+ YOEMS or PhD in aerospace or related field; 5+ years; C/C++, Python; real-time software; GN&C hardware and sensors; SWIL/HWIL testing; Agile tools; Git.
C, C++, Python, Real-time software, GN&C hardware, IMU, Star Trackers, GPS, LIDAR, OpNav, JIRA, Git, Trick, Bash, GEONS, CSPICE, GMAT, Monte Carlo analysis
2w
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Software Engineer (76185)
Columbus or Chantilly
HybridFull Time
2+ YOEBachelor's in computer science, computer engineering, electrical engineering, or related field with 2+ years experience; proficient in Python, C, C++, or C#; comfortable in Windows and Linux; Git; build systems (CMake/Make, Poetry); containerization (Podman/Docker/Singularity); able to work in DoD environment.
Python, C, C++, C#, Git, CMake, Make, Poetry, Docker, Podman, Singularity, PowerShell, Bash
1w
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AI/ML Software Engineer
Annapolis, Maryland, United States
HybridFull Time
3+ YOE3+ years data science/ML and 3+ years software engineering/architecture; experience with AI-enabled software systems, Python backend, SQL databases; familiarity with AI/LLM and non-LLM approaches.
Python, PostgreSQL, Git, Docker
5d
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Software Engineer II - CNO Focused
Rome or Catonsville
$92k-$142k/yr HybridFull Time
2+ YOEBachelor's in software or CS plus 2 years' experience; or equivalent. Proficient in Python and C/C++. Experienced in software analysis, reverse engineering, and low-level internals; familiar with Windows/Unix/Linux, networks, and CNO concepts.
Gitlab, JIRA, Confluence, Crucible, Python, C/C++, TCP/IP, socket programming, Windows, Unix/Linux
2mo
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AI Software Engineer - Remote
Reston, Virginia, United States
$140k-$170k/yr RemoteFull Time
4+ YOE4+ years software engineering; 2+ years AI/ML apps; Python/TypeScript/Go; APIs, microservices; cloud platforms; secure coding; regulatory compliance (CMMC/NIST/DFARS); US Citizenship with Secret clearance.
Python, TypeScript, Go, APIs, Microservices, Kubernetes, Docker, CI/CD, Azure, AWS, GCP, LLM APIs
1mo
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Software Engineer - CTJ - Poly
Reston or Redmond or Annapolis Junction
$101k-$199k/yr OnsiteFull Time
2+ YOEBachelor's degree in CS or related field and 2+ years coding in C/C++/C#/Java/JavaScript/Python or equivalent.
C, C++, C#, Java, JavaScript, Python, GenAI, Azure
1mo
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Security Software Engineer, Emerging On-prem AI infrastructure
Reston, Virginia, United States
$147k-$211k/yr OnsiteFull Time
2+ YOEBachelor’s degree or equivalent; 2+ yrs in software development (C/C++/Python); 2+ yrs in large-scale infra/distributed systems; 2+ yrs testing/launching software; TS/SCI clearance.
C++, C, Python, Security, Operating Systems, Networking
1mo
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Enterprise Software Developer
Baltimore, Maryland, United States
$110k-$130k/yr HybridFull Time
5+ YOEBachelor's degree or related experience; 5+ years in software engineering; Agile; US citizen or permanent resident; hybrid in-office work; cloud, C#, .NET, SQL, JavaScript; AI enablement roadmap.
Azure, Azure managed services, LLM tools, C#/.NET Core, JavaScript SPA frameworks, SQL, ETL tools, AWS, SSIS, Informatica, Boomi, Mulesoft, Glue, Talend, Angular, Salesforce, Snowflake, Workday, Tableau, Qlik, Python
1w
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RF Software Engineer, Senior - 1647
Reston, Virginia, United States
RemoteFull Time
5+ YOESenior RF software engineer with 5-7 years experience, BS or higher, Python, Linux, databases, CI/CD, and remote work capability.
Python, NumPy, Pandas, scikit-learn, MySQL, PostgreSQL, SQLite, FlatBuffers, Protocol Buffers, Linux, GitLab, React, D3
HiringCafe market data
Python Software Developer Jobs market signals in Countryside, 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
2,300+
Hiring companies
500+
Fresh sample
42% new in 30d
Salary visibility
64% show pay
Companies appearing in this market
GoogleHIIiCallidusMicrosoftMomentum EngineeringNightwingNorthrop GrummanPAX Engineering
Work location mix in visible results
Onsite: 57Hybrid: 27Remote: 6