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Python Developer Jobs in Middletown, VA, US
1,000+ python developer jobs from 240+ companies hiring in Middletown, VA, US.
1mo
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Full Stack Developer
Chantilly, Virginia, United States
OnsiteFull Time
5+ YOE5–7+ years in full stack development; proficient in Java/C#/C++; modern JavaScript (React); REST APIs; databases (SQL, MongoDB); cloud (AWS/Azure); DevOps; Agile/Scrum.
Java, C#, C++, React, HTML, CSS, SQL, MongoDB, Elasticsearch, Python, R, AWS, Azure, REST, API, IaC, DevOps, Terraform, Docker, Kubernetes
2mo
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Software Engineer 3
Tampa or Huntsville or Northern VA
OnsiteFull Time
6+ YOE6+ years software development; embedded systems; GPS/IMU data fusion; FPGA experience desired; MS preferred.
C, C++, Python, Visual Studio, Visual Studio Code, Embedded Linux, GPS, GNSS, CAN, SPI, I2C, UART, FPGA
1w
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Knowledge Graph Engineer
Reston or Somerville
$140k-$170k/yr HybridFull Time
2+ YOE2–5 years software engineering; Python and at least one typed language; graph databases; SQL; cross‑team collaboration
Python, Java, Go, TypeScript, ArangoDB, Neo4j, TigerGraph, JanusGraph, NetworkX, SQL, BigQuery, Cloud Run, GCP
1mo
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Senior Software Engineer, Platform
Chantilly or Herndon or Washington
HybridFull Time
Strong Python, microservices, gRPC, PostgreSQL/DuckDB, Docker/Kubernetes, message brokers, and AWS experience.
Python, gRPC, Protocol Buffers, PostgreSQL, DuckDB, RabbitMQ, Docker, Kubernetes, AWS, HTTP API, Event-driven architectures
2w
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Senior Software Engineer
Chantilly, Virginia, United States
$170k-$205k/yr OnsiteFull Time
13+ YOETS/SCI with Full Scope Poly, BS with 13+ years, AWS, Git/Jenkins/Rundeck, Python/Java/Node.js, REST APIs.
Python, Java, Node.js, Elasticsearch, AWS, Git, Jenkins, Rundeck, CloudFormation, REST APIs, PM2
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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Software Engineer - CTJ - Poly
Redmond or Reston or Atlanta
$84k-$165k/yr OnsiteFull Time
1+ YOEBachelor's degree in CS or related field or equivalent experience; strong coding skills in C/C++/C#/Java/JavaScript/Python; willingness to obtain security clearance.
C, C++, C#, Java, JavaScript, Python
3w
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Principal CNO Engineer
Herndon, Virginia, United States
OnsiteFull Time
6+ YOETS/SCI clearance; Bachelor’s in CS/CE or 4 years equivalent; 6-10+ years software dev; expert in C/C++, Python; Assembly or Go preferred; OS internals; Docker/Podman; large-scale integration.
Docker, Podman, Ghidra, IDA, Binary Ninja, C, C++, Python, Go, Assembly, Linux, Windows, CI/CD, Git, Kernel/User-mode
2w
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AI Engineer - AI+CryoET
Ashburn, Virginia, United States
OnsiteFull Time
3+ YOEExperience building AI/ML models for 3D imaging, especially cryoET or similar volumetric data; strong Python, PyTorch/JAX skills; collaboration across multidisciplinary teams.
Python, PyTorch, JAX, OpenMM
1mo
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Windows Cyber Tool Developer
Herndon, Virginia, United States
$150k-$250k/yr OnsiteFull Time
Experience developing Windows security tools; BS in CS/Cybersecurity; TS/SCI clearance required.
C++, C#, Python
1mo
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Software Engineer SME
Herndon, Virginia, United States
$50k-$290k/yr OnsiteFull Time
The Swift Group: Providing engineering and cybersecurity services for national security missions.
10+ YOE10+ years backend software/platform experience; strong Java, Ansible/Python, Postgres/MySQL/MariaDB, Linux, AWS; microservices and RESTful APIs; cloud deployment; containerization; Git workflows; TS/SCI with Poly clearance required; BSCS or equivalent.
Java, Ansible, Python, PostgreSQL, MySQL, MariaDB, Linux, AWS, Git, GitLab, GitHub
1mo
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IT Software Engineer
Manassas, Virginia, United States
OnsiteFull Time
Requires C# or similar OOP language, SQL, REST APIs, Git/Azure DevOps, CI/CD, Python, PowerShell, Linux/Windows, debugging, problem solving.
C#, SQL, REST, Git, Azure DevOps, CI/CD, Python, PowerShell, Linux, Windows Server, Splunk, Perl, Consul, Ansible, Docker, OpenShift, Angular, NiFi
3w
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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
3w
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Senior Prototyping Engineer
Austin or Reston or United States
HybridFull Time
5+ YOE5+ years of JavaScript/TypeScript, React/Next.js, Python/FastAPI; AI/LLM knowledge; strong UX/design sense; prototyping with JSON APIs; Agile mindset; excellent communication.
React, Next.js, JavaScript, TypeScript, Python, FastAPI, JSON APIs, Figma, AI Coding assistants, Claude Code, Cursor, LLMs
2mo
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Sr. Web Application Developer #1703183
Chantilly, Virginia, United States
$121k-$135k/yr OnsiteFull Time
8+ YOEDesign, develop, test web apps; US citizenship; active TS clearance with SCI access and CI polygraph; onsite Chantilly, VA; 8+ years web development; BS in CS/Software Engineering; SAFe and agile experience; 508 compliance; modern frontend and backend tech; cloud and DevSecOps.
Angular, React, .NET C#, Python, Node.js, JavaScript, TypeScript, HTML5, CSS3, Bootstrap, MySQL, PostgreSQL, Microsoft SQL, Elasticsearch, RabbitMQ, Redis, Docker, Kubernetes, AWS GovCloud, SC2S, C2S, DevSecOps
2mo
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Web Developer (TS/SCI CI Poly)
Chantilly, Virginia, United States
OnsiteFull Time
4+ YOE4+ years web development experience; HTML, JavaScript, CSS; C#.NET and Bootstrap; AWS cloud services; strong problem solving and multitasking.
HTML, JavaScript, CSS, Bootstrap, C#.NET, SQL, Ruby on Rails, AWS, Python
1w
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Backend Software Engineer
Gaithersburg or Alexandria or Chantilly or St. Louis or Tucson
OnsiteFull Time
8+ YOEUS citizen; TS/SCI with poly; BS in CS/SE with 8–12 yrs (MS with 6–10); Java or Python; REST APIs; SQL; Linux; ability to work independently.
Java, Python, REST, SQL, Linux, Apache Airflow, Spring Boot, Django, GitLab, Jenkins, Docker, OpenShift, AWS, Azure, Agile
4d
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Cleared Software Engineer
Chantilly, Virginia, United States
$69k-$116k/yr OnsiteFull Time
0+ YOEBachelor's in CS/IS or related field; strong programming knowledge; experience with Java, Scala, Python, Golang; AWS, Kubernetes, Docker; CI/CD tooling; DoD/Intelligence Community exposure preferred.
Java, Scala, Python, Golang, Kubernetes, Docker, AWS, Gitlab CI/CD, ArgoCD, CircleCI, Jenkins, Kafka, NiFi
4w
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Machine Learning Engineer
Centreville or Minneapolis
$102k-$144k/yr OnsiteFull Time
2+ YOEBS in Computer Vision/ML or related field; 2-5 years; C/C++, Matlab; TensorFlow/Keras; Python with scikit-learn/pandas; OpenCV; strong problem-solving and teamwork.
TensorFlow, Keras, Python, scikit-learn, pandas, OpenCV, Linux, C/C++, Matlab
1w
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Senior Software Engineer - APIs
Ashburn, Virginia, United States
$120k-$145k/yr RemoteFull Time
5+ YOE5+ years Java 8+ with Spring; AWS; SQL; Snowflake; Scala/Python; web services; GA/DG experience; English fluency.
Java, Spring Framework, AWS, SQL, Snowflake, Scala, Python, JSON, GeoJSON, Git, Unit testing, Docker, Kubernetes
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
3mo
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Software Engineer (TS/SCI) {S}
Chantilly, Virginia, United States
OnsiteFull Time
Active TS/SCI clearance; degree in CS/EE/Physics or related; programming in Python/C++/Rust; Linux/cloud experience; onsite work; strong problem-solving.
Python, C++, Rust, Linux, AWS
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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UX Engineer / Front-End Engineer – TAK (ATAK/WinTAK)
Chantilly, Virginia, United States
OnsiteFull Time
3+ YOE3-5 years UX/UI development; experience with ATAK/WinTAK/TAK Server; strong Java and front-end skills; API/data stream integration; TS clearance (TS/SCI preferred).
Java, React, Angular, Vue, Kotlin, Python, GitLab, ATAK, WinTAK, TAK Server
1mo
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DevOps Engineer
McLean or Chantilly
OnsiteFull Time
3+ YOEActive TS/SCI clearance with CI Poly; U.S. Citizenship; 3+ years in DevOps/SRE/Cloud; Python/Bash; Kubernetes; cloud infra; secure environments.
Terraform, Ansible, Docker, Kubernetes, Jenkins, GitLab CI, CircleCI, CloudFormation, Prometheus, Grafana, ELK Stack, AWS, Azure, GCP
3w
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Software Engineer - 3GPP/NTN Work
Germantown or Carlsbad
$141k-$222k/yr OnsiteFull Time
3+ YOEBS in Computer Science; 3-5 years in 3GPP/NTN; network programming and embedded work; O-RAN RU integration; Docker/Kubernetes; Golang, Python; GitHub Actions, Jenkins; NetConf/YANG.
Docker, Kubernetes, Golang, Python, GitHub Actions, Jenkins, NetConf, YANG
2w
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Forward Deployed Engineer
Reston, Virginia, United States
HybridFull Time
5+ YOEBachelor’s degree in CS/Engineering or equivalent; 5+ years in software engineering, cloud architecture, and deployments; strong cloud experience (GCP/AWS/Azure); full-stack proficiency (Python, TypeScript, Go, Rust, or Java); Docker/Kubernetes; US Citizen.
Kubernetes, GKE, Docker, Python, TypeScript, Go, Rust, Java, Google Cloud, AWS, Azure
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
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
2mo
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Sr. AI Developer, GS (Chantilly, VA, US, 20151)
Chantilly, Virginia, United States
$116k-$189k/yr OnsiteFull Time
5+ YOE5+ years Python ML, DL, LLMs; strong MLOps; cloud platforms; gov't compliance; security-focused AI.
Python, TensorFlow, PyTorch, Scikit-learn, Hugging Face, LangChain, OpenAI, AWS SageMaker, Azure ML, Google Vertex AI, MLflow, Airflow, Kubeflow, FAISS, Pinecone, Retrieval-Augmented Generation, CMMC, FedRAMP, NIST
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
3mo
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Software Developer
Washington or Winchester
OnsiteFull Time
2+ YOETwo years relevant experience; Bachelor's degree preferred; Top Secret clearance; CI polygraph may be required; experience with secure software systems.
Python, MS SQL, APIs, Blue Prism, RPA
2w
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Junior Palantir / Maven Product Engineer
Herndon, Virginia, United States
OnsiteFull Time
3+ YOEBachelor’s degree in CS/Engineering/Data Science or related field; 1–3 years software/data engineering; Python/Java/Go/TypeScript; cloud infra AWS/Azure/Kubernetes; secure environments; Secret clearance; TS/SCI eligibility.
Python, Java, Go, TypeScript, AWS, Azure, Kubernetes
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
1w
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Full Stack Software Engineer
Reston or Chicago or Plano
$123k-$161k/yr HybridFull Time
2+ YOE2 years SDLC experience; backend Java/TypeScript/Python; Angular frontend; SQL/NoSQL; AWS; DevOps; GenAI tools; mortgage domain knowledge.
Node.js, Python, Java, Spring Boot, Angular, NgRx, RxJS, TypeScript, JavaScript, Git, Jenkins, Docker, Terraform, AWS CloudFormation, DynamoDB, PostgreSQL, Oracle, Postman, Putty, IntelliJ, VSCode
3w
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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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Lead AI/ML Engineer
McLean or Chantilly
$175k-$225k/yr HybridFull Time
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
1mo
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Forward Deployment Software Engineer
Reston, Virginia, United States
$200k-$288k/yr HybridFull Time
7+ YOE7+ years in distributed systems; container orchestration; IaC (Terraform/Pulumi); CS fundamentals; Java/C++/Golang/Python; public cloud experience; TS/SCI with Polygraph clearance; US citizenship; advanced degree in CS.
Terraform, Pulumi, Kubernetes, Cloud Platforms (AWS, Azure, GCP), Java, C++, Go, Python
2mo
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Senior Full-Stack Engineer
Culver City or Linthicum or Allen or Woodcliff Lake or Chicago or Orlando or Baton Rouge or Waltham or Phoenix or Harrisburg or West Valley City or Austin or Alpharetta or San Diego or Indianapolis or Lexington or Parma or Little Rock or Asheville or Birmingham or Chantilly or Washington or Brentwood or Plantation or Fort Collins or San Mateo or Schaumburg or Brooklyn
$140k-$180k/yr OnsiteFull Time
7+ YOE7+ years in software development; Bachelor's degree in CS/Engineering; backend (Node.js) and frontend (React) experience; API integrations; cloud and database experience.
Node.js, HapiJS, Python, JavaScript, React, SQL, Serverless, Lambda, CloudFormation, Elastic Beanstalk, EC2, VPC, DynamoDB, RDS, G Suite, Microsoft Graph, Okta, OneLogin, Slack, Linux, Docker, Datadog, CloudWatch, MQTT, log/data pipelines
1w
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Lead Software Engineer-Embedded Computing Software-Onsite
Ashburn, Virginia, United States
$109k-$145k/yr OnsiteFull Time
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
HiringCafe market data
Python Developer Jobs market signals in Middletown, 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
1,000+
Hiring companies
240+
Fresh sample
54% new in 30d
Salary visibility
51% show pay
Companies appearing in this market
ARKA GroupClarity InnovationsFannie MaeGlobal InfoTekGoogleMicrosoftThe Swift GroupVantor
Work location mix in visible results
Onsite: 51Hybrid: 23Remote: 8