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Python Software Developer Jobs in Middletown, VA, US
520+ python software developer jobs from 150+ companies hiring in Middletown, VA, US.
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
5d
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Software Factory Engineer
Reston, Virginia, United States
RemoteFull Time
8+ YOEFull stack exp with modern frameworks; experience in software factory environments, CI/CD, DevSecOps, platform engineering; strong Agile; enterprise integrations (Salesforce, Drupal, Dynamics); federal/regulated context.
React, Angular, Node.js, CI/CD, DevSecOps, Git, Jira, Confluence, Salesforce, Drupal, Dynamics, USWDS, Accessibility, HTML, CSS, JavaScript, Python, Java, Ruby, SQL, NoSQL
1w
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Senior Software Engineer (Command & Control)
Santa Barbara or Arlington or Reston
$155k-$185k/yr OnsiteFull Time
5+ YOEBachelor's in CS/Engineering; 5-8+ years backend experience; Python, API design; distributed systems; cloud (AWS); relational DBs.
Python, AWS, PostgreSQL, REST API, Docker, Kubernetes
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
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
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
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
1mo
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Senior Software Engineer (Big Data)
Herndon, Virginia, United States
OnsiteFull Time
TS/SCI clearance with polygraph preferred; BS in CS/Engineering or related field; strong full stack development; big data tech (Hadoop, Spark, Kafka); Java/Python/C#; APIs and microservices; strong problem-solving; able to work independently (IC)
Java, Python, C#, Hadoop, Apache Spark, Kafka, APIs, Microservices, REST
1mo
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Software Developer (Automation & Distributed Integration Systems)
Ashburn, Virginia, United States
$115k-$117k/yr HybridFull Time
5+ YOE5+ years software testing and test automation; strong C#/.NET Core; experience with backend services, APIs, distributed systems; CI/CD; test frameworks.
C#, NET Core, PowerShell, Python, HTTP/REST, TCP/IP, Sockets, xUnit, NUnit, MSTest, Git, CI/CD, Postman, Newman, RestAssured, Docker
2w
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Software Engineer (ServiceNow)
Chantilly, Virginia, United States
$100k-$200k/yr OnsiteFull Time
Applied Network Solutions: Providing cybersecurity and network engineering services for government agencies.
10+ YOETen years of combined work history and education, TS/SCI with poly, ServiceNow experience, and DoD 8140 IAT2 compliance; Agile/SDLC experience; strong communication and collaboration skills.
ServiceNow, Ansible, Python, Terraform, PowerShell, MariaDB, REST, SOAP, MID Server, Linux, Windows
3w
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Intern- Software Engineer
Herndon, Virginia, United States
$25/hr HybridInternship
0+ YOEPursuing a Bachelor's degree in Computer Science or Engineering; strong programming skills; knowledge of databases; AI/ML fundamentals; good communication; eager to learn.
Java, Python, JavaScript, C#, SQL, NoSQL, HTML, CSS, GitHub Copilot, ChatGPT, Claude
1mo
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Full Stack Software Engineer, Developer (Experienced or Senior)
Chantilly or Seal Beach
OnsiteFull Time
5+ YOE5+ years in OO design and Java/C++/Python; full-stack Java development; active Top-Secret/SCI eligibility with CI poly; aerospace/space domain experience preferred.
Java, C++, Python, Spring, Hibernate, JDBC, REST/Open API, Jenkins, GitLab CI, Maven, Gradle, SQL, NoSQL, WebLogic, JMS, HTML, CSS, JavaScript, React, Open Layers
1mo
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Advisor Software Engineer (AWS)
Reston or Plano
$155k-$209k/yr HybridFull Time
6+ YOE6+ years Java development; AWS and AI/ML exposure; strong design/architecture; Angular; stakeholder collaboration; mentoring; observability and SDLC expertise.
Java, Angular, Python, AWS, TensorFlow, PyTorch
2w
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Jr Full Stack Developer (Python/React.js)
Reston, Virginia, United States
$70k-$100k/yr OnsiteFull Time
2+ YOEBachelor's in CS/Engineering; 2+ yrs Python and React; experience with AI-assisted development; microservices; Agile/Jira; US citizen; located in DC metro area.
Python, React.js, GitHub Copilot, Microservices, JIRA, AWS, Docker, Kubernetes, PostgreSQL, MongoDB, DynamoDB
1d
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Software Developer in Test (SDET)
Ashburn, Virginia, United States
RemoteFull Time
10+ YOEStrong programming in C#, Java, or Python; experience in software testing; familiar with SDLC/Agile; US citizenship and Public Trust clearance; remote work.
Selenium, TestNG, JUnit, QTP, LoadRunner, GitHub Actions, JIRA, SQL, JMeter, Gatling
1mo
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Senior Software Automation Testing Engineer
Ashburn, Virginia, United States
$85k-$100k/yr HybridFull Time
5+ YOE5+ years in software testing; strong Python 3.8+; web frameworks (FastAPI, Django, Flask); REST API testing; AWS; automation; SQL; Git/Jenkins/Harness; Locust.
Python, FastAPI, Django, Flask, pytest, unittest, Locust, Gitlab, Harness, Jenkins, Oracle, Postgres, SQL, AWS
1mo
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AI Software Engineer - Mid Level
Scottsdale or Pittsburgh or Bloomington or Chantilly or San Jose or United States
$124k-$138k/yr RemoteFull Time
5+ YOEBachelor's degree in software engineering or related field; 5+ years experience or Master's with 3+ years; Agile experience preferred; US citizenship required.
Python, REST APIs, LLM API, Azure, SharePoint, Microsoft Graph API, Git, Docker, Kubernetes, PostgreSQL, LangChain, LangGraph, CrewAI, AutoGen, Pinecone, Weaviate, Qdrant, pgvector
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
1w
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Principal Software Engineer
Herndon, Virginia, United States
$139k-$185k/yr RemoteFull Time
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
1mo
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Junior Software Engineer
Ashburn, Virginia, United States
OnsiteFull Time
3+ YOEBachelor’s degree required; 3+ years experience; CBP suitability eligibility; databases, web apps, and interfaces; strong communication.
Python, SQL, Java
6d
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Staff SW Engineer, Ground & Control Services
Seattle or Herndon or United States
$155k-$180k/yr HybridFull Time
10+ YOE10+ years software development; proficient in Go/Python/C++; cloud and on-prem microservices; satellite ops experience; US citizenship.
Go, Python, C++, AWS, Azure, GCS, Kubernetes, Git, CI/CD, On-Prem, Terraform, Nomad
1mo
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Senior I&T Software Engineer (Contract)
Arlington or Denver or Houston or Merritt Island
RemoteContract
9+ YOESenior software engineer with embedded/flight software, C/C++, and space hardware experience; 9+ years with Bachelor's or 7+ with Master’s; security clearance eligibility; US citizenship.
C, C++, Python, TCL, GNC, Embedded software, Hardware-in-the-loop, Test automation, RTOS
3w
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Ground Station Software Engineer (Staff to Senior Staff)
Chantilly or United States
$148k-$215k/yr RemoteFull Time
10+ YOEBachelor's in CS/Software Eng; 10–15 yrs software engineering; leadership; avionics/GCS experience; aerospace domain; proficiency in modern UI and web/real-time systems.
TypeScript, C++, Python, C#, React, Node.js, Electron, Docker, Kubernetes, MAVLink, STANAG 4586, WebSocket, REST, Mapbox, MapLibre GL, Qt, WPF
2mo
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Perception Engineer
Clarksburg, Maryland, United States
$130k-$180k/yr OnsiteFull Time
2+ YOEDevelop and maintain C++/Python perception software; collaborate across autonomy teams; travel to test sites.
C++, Python, Linux, Docker, Git, CI/CD, Bash, Automation
2mo
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Principal Engineer, Software (Reston, VA, US, 20191)
Reston, Virginia, United States
OnsiteFull Time
10+ YOEUS citizenship, ability to obtain/maintain security clearance, BS in CS or related field, 10+ years in applications development, strong communication, multi-architecture development, expert in JS (TypeScript/React/Angular) and Python, SDLC/Agile, SOLID, data eng, Docker/Kubernetes, cloud-native, secure DevOps.
JavaScript, TypeScript, React, Angular, Python, Docker, Kubernetes, SQL, ETL, Data warehousing, Data streaming
2mo
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Vulnerability Researcher (iOS platforms)/ Software Engineer (VR), Mid-Level
Chantilly, Virginia, United States
OnsiteFull Time
3+ YOE3+ years in vulnerability research/reverse engineering; strong iOS experience; programming in C/C++, Python; reverse engineering tools; active TS/SCI clearance.
IDA Pro, Ghidra, Frida, C/C++, Python
2mo
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26-1084 - Full Stack Software Engineer - Herndon, VA
Herndon, Virginia, United States
OnsiteFull Time
3+ YOEMid level full stack engineer with 3+ years, strong React/Node.js, Spring Boot, AWS, Docker/Kubernetes, SQL/NoSQL, and Secret clearance.
React, Node.js, Spring Boot, Java, Python, SQL, NoSQL, Oracle, PostgreSQL, Aurora, DynamoDB, Docker, Kubernetes, AWS, Git, Jenkins, Unix Bash, Angular, Bootstrap, REST APIs, Cloud Compute
3w
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AI/ML Data Architecture Software Engineer
Manassas, Virginia, United States
OnsiteFull Time
3+ YOEBachelor's in CS/IS/CE; 3 years experience; DoD Secret Clearance; data warehousing, APIs, databases, prototyping.
Atlassian Tool Suite, Git, Linux, C++, Java, Python, Kafka, Spark, Iceberg, OpenMetadata, Ranger, Ceph, S3, MinIO, Parquet, REST, Nessie, Druid, Trino, Metabase, MLLib, Superset, Kubernetes, RKE2, Helm, AI/ML APIs, SparkML
4w
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Senior Software Engineer
Reston or Chandler
OnsiteFull Time
8+ YOESenior Software Engineer with 8+ years experience, BS in CS or related field, proficient in Agile, strong communication.
Kubernetes, Docker, Podman, ArgoCD, GitLab, JFrog Artifactory, BitBucket, Linux, bash, Python, Java, C++, TypeScript, Perl, RESTful, HTTP, ELK, WebSockets, XML, JSON, SQL, PostgreSQL, Mongo, Apache, CVE TLS, Jira, Git, Crucible, Confluence, Microservices, Automated testing, AWS
3w
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iOS Developer
Reston, Virginia, United States
OnsiteFull Time
3+ YOETS/SCI clearance or ability to obtain; 3+ years of experience; Python and C; reverse engineering iOS/macOS on ARM/x86; exploit development; Git
Python, C, Git, Objective-C, Swift, C++
2mo
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Software Tester
Chantilly, Virginia, United States
OnsiteFull Time
8+ YOEActive TS/SCI with a polygraph; associate or bachelor in CS/cyber security/engineering/mathematics; 8 years of experience; automated test scripting in Python/Bash/Java/JavaScript; functional and regression testing; UNIX/Windows; JIRA; customer and stakeholder interaction.
Python, Bash, Java, JavaScript, Selenium, JIRA, Unix, Windows
6d
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Senior Application Engineer
Vienna or Winchester or Pensacola
$115k-$180k/yr HybridFull Time
5+ YOEBachelor’s degree in Computer Science, Information Systems, or related field; 5–7 years in application/software development; Azure cloud experience; proficient in SQL, Python, JavaScript; strong communication and problem-solving.
SQL, Python, JavaScript, HTML/CSS, Azure, Azure Compute, Azure Storage, Azure Data & Analytics, Git
3w
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Senior Full Stack Developer
Herndon, Virginia, United States
OnsiteFull Time
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
1mo
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Modernization Engineer (Senior)
Manassas, Virginia, United States
OnsiteFull Time
Senior software engineer with Rust, C/C++, Docker/Kubernetes, Kafka/Redpanda, Terraform/Pulumi, Python; strong testing, linting, and CI/CD experience.
Rust, C/C++, Docker, Kubernetes, Kafka/Redpanda, Terraform, Pulumi, Python, GitHub Actions, Protobuf
2w
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AI Engineer
Reston, Virginia, United States
$75k-$170k/yr OnsiteFull Time
5+ YOE5+ years software or ML engineering; 2+ years GenAI/LLM; strong Python; vector DB and RAG experience; AWS Bedrock/OpenSearch; US citizenship; DHS clearance preferred.
Python, OpenSearch, Bedrock, Pinecone, Weaviate, Chroma, FAISS, LangChain, LlamaIndex, Haystack, APIs, Docker, Kubernetes, MLOps, CI/CD, Cloud
8h
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Embedded Software Engineer (United States, Ashburn VA, US)
Ashburn, Virginia, United States
HybridFull Time
Bachelor's or Master's in EE/CE/CS; embedded Linux; digital hardware; leadership in distributed teams; C/C++/Python; networking; hardware/software debugging; cross-domain collaboration.
C/C++, Python, Embedded Linux, Kernel drivers, Device trees, Networking, CI/CD
1mo
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Software Tester / QA Engineer (Web & API Testing)
Chantilly, Virginia, United States
$160k-$190k/yr OnsiteFull Time
3+ YOE3+ years in software testing; strong web and REST API testing; API tools; test automation; JavaScript/Python/Java; Agile/Scrum.
Postman, Swagger, Cypress, Git, JavaScript, Python, Java, JSON
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
1w
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Quality Assurance Engineer
Leesburg, Virginia, United States
OnsiteFull Time
5+ YOEMid-level QA engineer with development, SQL, and Python expertise focusing on automation, data validation, and platform reliability.
Python, SQL, CI/CD, AWS, Apache Iceberg, XBRL
HiringCafe market data
Python Software 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
520+
Hiring companies
150+
Fresh sample
53% new in 30d
Salary visibility
49% show pay
Companies appearing in this market
Fannie MaeREDLatticeUmbraBoeingIridiumKBRNoetic StrategiesAmivero
Work location mix in visible results
Onsite: 43Hybrid: 16Remote: 9