Senior Python Developer Jobs in Taneytown, MD, US

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Senior‑Level Python Developer (Python, C++)

Annapolis Junction, Maryland, United States

$155k-$175k/yr OnsiteFull Time

IDS International: Global training, logistics, and security for government agencies.

8+ YOEBachelor’s degree in computer science; 8+ years relevant experience; Python, C++, Spark; Jupyter Notebooks; JIRA, Confluence, Git/GitLab; knowledge of customer tools; active TS/SCI with Polygraph.

Python, C++, Spark, Jupyter Notebooks, JIRA, Confluence, Git/GitLab

2mo

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2mo

Python Developer

Woodlawn, Maryland, United States

$144k-$197k/yr OnsiteFull Time

Social Security Administration: Manages federal retirement, disability, and survivor social insurance.

1+ YOEDesign and develop large-scale Python applications with ML/LLM, data processing with NumPy/Pandas, performance analysis, collaboration, TDD, Git, SQL, security, agile practices, and cloud deployment.

Python, NumPy, Pandas, Git, Bitbucket, Visual Studio Code, PostgreSQL, MongoDB, SQL, Splunk, Dynatrace, AWS, Azure, Jenkins

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Python Developer

Fort Meade, Maryland, United States

OnsiteFull Time

Set of X: Provides specialized engineering services for U.S. national security missions.

7+ YOEBachelor's degree in Computer Science or related; 7+ years SWE experience; TS/SCI clearance with polygraph; strong Python; NiFi or Elasticsearch a plus.

Python, NiFi, Elasticsearch

2mo

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2mo

Senior Python Software Engineer

Linthicum Heights, Maryland, United States

$170k-$260k/yr OnsiteFull Time

GliaCell Technologies: Providing software and systems engineering for the intelligence community.

6+ YOEActive TS/SCI with Polygraph clearance; U.S. citizenship; 6+ years software engineering with MS in CS (or 8+ years with BS), or 10+ years with AA, or 12+ years with high school diploma; strong communication and independent work skills.

Python, Docker, Django, Flask, MongoDB, MariaDB, REST, JSON, XML, Jira, Confluence, Git, AWS

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Python Software Developer

Ashburn, Virginia, United States

HybridFull Time

DXC TechnologyNYSE: DXC: Global provider of IT services and business technology solutions.

4+ YOE4+ years software development; Python proficiency; strong SQL; GraphQL APIs; REST; Git/Linux/Docker; web security; cloud; microservices; bachelor's degree or equivalent; authorized to work in the United States

Python, GraphQL, REST, SQL, Git, Linux, Docker, OpenAPI

1mo

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1mo

Senior Software Engineer (Python)

Columbia, Maryland, United States

$170k-$240k/yr OnsiteFull Time

Visionist: Provides software engineering and data analytics for national security.

12+ YOESenior software engineer with 12+ years exp, Python expert, production apps, AI concepts, Kafka, Elasticsearch; TS/SCI with polygraph.

Python, Kafka, Elasticsearch, PydanticAI, LangGraph

2mo

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2mo

CNO Python Software Engineer

Hanover, Maryland, United States

OnsiteFull Time

ManTech: Delivers technology and cybersecurity solutions to national security agencies.

7+ YOETS/SCI w/ Poly required; 7+ years of programming with BS or 11+ years with HS; Python, JSON/YAML, OOP, version control; experience in CNO context and testing.

Python, JSON, YAML, Git, Subversion, Confluence, Jira

1mo

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1mo

Python Software Engineer (TS/SCI with Polygraph)

Annapolis Junction, Maryland, United States

$150k-$200k/yr OnsiteFull Time

Red Alpha: Provides software engineering and data science for defense missions.

7+ YOE7+ years software engineering; BS in CS or related field; Linux CLI; Bash; Python; Rust or willingness to learn; NoSQL (MongoDB); Docker; Kubernetes; Helm; RabbitMQ; GitLab CI; Ansible; Git; TS/SCI with polygraph

Linux, Bash, Python, Rust, MongoDB, Docker, containerd, Kubernetes, Helm, RabbitMQ, GitLab CI, Ansible, Git, PostgreSQL, Jira, Confluence

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Senior Lead Software Engineer, Back End (Python/Node.js)

McLean or New York City or Cambridge

$230k-$286k/yr OnsiteFull Time

Capital OneNYSE: COF: Financial services offering credit cards, banking, and loans.

6+ YOESenior backend software engineer with 6+ years experience, cloud (AWS/Azure/GCP), leadership experience preferred; strong Java, Python, Node.js, Go, Scala, and cloud/container tech.

Java, Python, SQL, Node.js, Go, Scala, Docker, Kubernetes, AWS, Azure, GCP

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Senior Engineer - Customer Identity

Bethesda or Dallas or Seattle

$75k-$215k/yr HybridFull Time

GEICO: Provides vehicle and property insurance services to consumers.

4+ YOESenior engineer with 4+ years in software development; Java, C++, Python or C#; microservices; cloud; REST/gRPC; Kafka/Azure; DevOps; open-source experience.

Java, C++, Python, C#, SQL, NoSQL, Kafka, Azure Service Bus, Azure tools, AWS

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Senior Software Engineer, Python

Linthicum, Maryland, United States

OnsiteFull Time

CyberMaxx: Provides managed detection and response cybersecurity services to organizations.

5+ YOE5+ years Python3, 2+ years MySQL, REST APIs, data science basics; Django and ML packages a plus.

Python, MySQL, RESTful APIs, Django, Keras, TensorFlow

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Senior Software Developer

Richmond or Baltimore or Nashville or Mechanicsburg or Raleigh

$105k-$145k/yr HybridFull Time

GFT: Global firm providing engineering and infrastructure construction services.

5+ YOESenior software developer with 5+ years of experience in full-stack design and geospatial applications.

SQL, C#, Java, Python, HTML, CSS, JavaScript, ASP.Net Core, Angular, React, Vue.js, Esri software

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Senior Full Stack Developer

Baltimore, Maryland, United States

$133k-$189k/yr RemoteFull Time

Index Analytics: Delivers data strategy and IT solutions to federal health agencies.

5+ YOESenior full stack developer with 5+ years of experience, strong JS/Python, React/Node.js, AWS, Git, and government project experience.

React, Next.js, TypeScript, Python, AWS, Redis, DynamoDB, Lambda, S3, API Gateway, Git, Jenkins, Snowflake, PostgreSQL, Plotly, D3, Jest, React Testing Library, Jira, Confluence

2mo

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2mo

Senior Software Engineer

Annapolis Junction or Columbia

OnsiteFull Time

Freedom Technology Solutions Group: Technical consulting and engineering for the national security community.

7+ YOESenior software engineer with 7+ years SWE experience; BS in CS required; strong Java/Python, CI/CD, and security clearance with polygraph; experience with Agile; ability to design, develop, and deploy software.

Java, Python, Git, Shell, Maven, JavaScript, HTML, CSS, JUnit, IDE, Spring, Jenkins, Hibernate, MySQL, Web Services, Google Web Toolkit, Vaadin, Docker, Kubernetes, OpenShift, GitLab CI, SonarQube

2mo

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2mo

Senior Software Developer

Hanover, Maryland, United States

OnsiteFull Time

VTG: Provides engineering and digital modernization for defense and national security.

20+ YOETwenty years of software development; multi-language proficiency (Java, Python, Rust, C++, Golang); Top Secret/SCI with Poly clearance.

Java, Python, Rust, C++, Golang, Docker, Kubernetes

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Senior Software Engineer

Owings Mills, Maryland, United States

$121k-$206k/yr HybridFull Time

T. Rowe PriceNASDAQ: TROW: Provides global investment management and retirement planning services.

5+ YOESenior software engineer with AWS, Amazon Connect, Java/Python, CI/CD, Docker, OAuth2, and distributed systems.

Java, Python, Amazon Connect, AWS, Lambda, Lex, DynamoDB, S3, Git, Docker, OAuth2, OIDC, JWT, ADFS, Terraform

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Senior Software Developer

Rockville or Tysons Corner

$113k-$188k/yr HybridFull Time

Guidehouse: Provides management and technology consulting services to diverse organizations.

6+ YOEMinimum 6 years full-stack development (Python and React); 3+ years databases; Docker; AWS; REST/JSON; CI/CD; mentoring.

React, TypeScript/JavaScript, Python, Docker, AWS, GitHub Actions

2mo

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2mo

Senior Software Developer

Reston, Virginia, United States

$146k-$228k/yr HybridFull Time

Noblis: Provides technical and scientific solutions to federal government agencies.

8+ YOEBachelor's Degree and 8+ years software development; expert Python and C; Linux/Windows; PostgreSQL; software architecture; system-level programming; TS/SCI clearance with eligibility.

Python, C, PostgreSQL, Linux, Windows, Git, Docker, Kubernetes, REST, Microservices, CI/CD, DevOps

2mo

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2mo

Senior CNO Developer (Onsite)

Annapolis Junction, Maryland, United States

OnsiteFull Time

Nightwing: Provides cybersecurity and intelligence solutions for government agencies.

6+ YOE5+ MgmtSenior CNO developer with extensive programming and team leadership experience, TS/SCI clearance preferred, onsite in MD.

Python, C, C++, Java, Perl, Assembly, Make, PowerShell, Bash

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Senior Full Stack Developer

Herndon, Virginia, United States

OnsiteFull Time

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

1mo

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1mo

Senior Software Engineer

Waltham or Lexington or North Bethesda

$119k-$155k/yr HybridFull Time

XometryNASDAQ: XMTR: Operates an AI-powered marketplace for custom manufacturing and prototyping.

6+ YOE6+ years in software development; full-stack experience; Python backend; React/Typescript; AWS; SQL and MongoDB; Docker/Kubernetes; strong debugging and testing.

Python, React, Typescript, HTML, CSS, AWS, SQL, MongoDB, Docker, Kubernetes

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Full Stack Developer, Senior

Fort Meade, Maryland, United States

$113k-$257k/yr RemoteFull Time

Booz Allen HamiltonNYSE: BAH: Provides technology and management consulting services to diverse organizations.

14+ YOESenior full stack developer with 14+ years Linux software experience or 18+ years without a degree; TS/SCI with poly; Python/Java/JavaScript; data visualization and modeling; relational DBs (MySQL/PostgreSQL); lead small teams; agile; Bachelor's in CS.

Python, Java, JavaScript, MySQL, PostgreSQL, Linux, Data visualization

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Full Stack Developer, Senior

Fort Meade, Maryland, United States

$113k-$257k/yr OnsiteFull Time

Booz Allen HamiltonNYSE: BAH: Consulting and technology services for government and commercial clients

14+ YOESenior full-stack developer with experience in Python/Java/JavaScript, data visualization, data modeling, web applications, and leading small cross-functional teams; TS/SCI with polygraph; Bachelor's in Computer Science with 14+ years (or 18+ years in lieu of degree) in Linux environment.

Python, Java, JavaScript, MySQL, PostgreSQL, Linux

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Software Developer, Senior

Herndon, Virginia, United States

$133k-$226k/yr OnsiteFull Time

BAE SystemsLondon Stock Exchange: BA: Designs and manufactures advanced defense and aerospace systems.

6+ YOEMinimum 6 years software development experience; Bachelor’s degree in CS/Info Security or related field (or equivalent); Proficiency with .NET, Web, Python, PowerShell; Cloud experience (AWS/Azure); Experience with GitHub/Jira/Jenkins/Confluence; knowledge of STS/DataHound; SDLC familiarity; strong documentation skills.

.NET, C#, WPF/XAML, C++, ASP.NET MVC Web API, HTML/CSS, Python, PowerShell, IIS, AWS, Azure, GitHub, Jira, Jenkins, Confluence, Secure Token Service (STS), DataHound, Microsoft PowerBI

18h

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18h

Senior Software Engineer

Reston or Lexington

$97k-$165k/yr HybridFull Time

BAE SystemsLondon Stock Exchange: BA: Provides advanced defense, aerospace, and security technology solutions.

5+ YOEBachelor's degree in Computer Science or Software Engineering; 5+ years software development; active Secret clearance or ability to obtain; strong C/C++ and Python; Linux experience; full software lifecycle; security-focused.

C/C++, Python, Linux, SVN, Git, Make, CMake, TCP/IP, UDP, SSH, SFTP

2mo

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2mo

Senior Software Engineer

Reston or Vienna

HybridFull Time

NT Concepts: Delivers AI and data solutions for national security missions.

6+ YOE6+ years full-stack development; Python, Django, Angular, TypeScript; containerization (Fargate, OpenShift, Kubernetes); API design; DevOps; databases; AI/ML integration; active Secret clearance; TS/SCI preferred.

Python, Django, Angular, TypeScript, Kubernetes, OpenShift, Fargate, PostgreSQL, MySQL, MongoDB, Git, APIs

2mo

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2mo

Senior Software Engineer

Annapolis Junction, Maryland, United States

OnsiteFull Time

ClearEdge: Provides software engineering and data analytics to the intelligence community.

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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1mo

DevOps Engineer Senior Staff

Fort Meade, Maryland, United States

$151k-$266k/yr OnsiteFull Time

Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.

20+ YOESenior DevOps engineer with Kubernetes, Python/C++, CI/CD, Linux, and security clearance TS/SCI with poly.

Kubernetes, Docker, Jenkins, GitLab CI/CD, Python, Bash, Go, YAML, JSON, Ansible, Helm, C++

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Senior Software Developer

Annapolis Junction, Maryland, United States

OnsiteFull Time

BigBear.aiNYSE: BBAI: Provides AI-powered decision intelligence software for national security.

14+ YOEExtensive software engineering experience; TS/SCI with Poly; Bachelor's in CS; Linux; Python/C++/Java; Git/GitLab; Agile; SDR and geospatial experience preferred.

Linux, Python, C++, Java, JavaScript, Git, GitLab, VSCode, Eclipse, Scrum

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Senior Software Engineer/Architect

Laurel, Maryland, United States

$105k-$290k/yr OnsiteFull Time

Johns Hopkins University Applied Physics Laboratory: Conducts research and engineering for national security and space.

7+ YOEB.S. in CS/CE; 7+ years software development; Python; technical lead experience; web development with modern JS frameworks; non-relational DBs; TS/SCI eligibility.

Java, Python, JavaScript, Vue.js, ReactJS, Angular, MongoDB, CouchDB, HBase, SQL Server, MySQL, Postgres

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Senior AI Developer

McLean, Virginia, United States

OnsiteFull Time

Steampunk: Design-led federal technology consulting and innovation services firm.

7+ YOE7+ years in software engineering; 2+ years AI/ML; Bachelor's degree; Python and AI frameworks; production-grade AI apps; cloud platforms; RAG, LLM orchestration.

Python, PyTorch, TensorFlow, Hugging Face Transformers, LangChain, LlamaIndex, RAG, Vector databases, AWS, Azure, GCP, Docker, Kubernetes

1mo

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1mo

Senior Software Engineer

Fort Meade, Maryland, United States

OnsiteFull Time

Hoplite Solutions: Provides cybersecurity and intelligence services for national security missions.

11+ YOESenior software engineer with strong experience in Jupyter Notebooks, Java MapReduce, Python PySpark; ML/analytics focus; experience with Jira/Confluence/GitLab; TS/SCI with Polygraph clearance; Bachelor's +11 years or equivalent.

Jupyter, Java MapReduce, Python PySpark, Confluence, Jira, GitLab

3mo

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3mo

Senior Data Engineer

Baltimore, Maryland, United States

$125k-$150k/yr HybridFull Time

Association of Universities for Research in Astronomy: Manages astronomical observatories and space telescope science centers

8+ YOE8+ years in Linux, data engineering, PostgreSQL, data pipelines; Python; Kubernetes; Apache Airflow; cloud and on-prem; BS/MS in CS/IT.

PostgreSQL, Apache Airflow, Kubernetes, Python, Linux

2mo

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2mo

Senior Software Engineer

Herndon, Virginia, United States

RemoteFull Time

iDirect Government: Provides secure satellite-based IP communication solutions for government organizations.

6+ YOESenior software engineer with 6+ years in C/C++, Linux, REST/GraphQL, and modern web tech; strong problem solving and collaboration.

C++, Go, GraphQL, Vue, Node.js, WebSockets, REST, Docker, Kubernetes, PostgreSQL, MySQL, MariaDB, Python, Perl, Lua, GCC, cmake, bash, Jira, Git

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Senior Systems Engineer

Colorado Springs or Albuquerque or Laurel

$125k-$150k/yr RemoteFull Time

Auria: Engineering and software solutions for space and defense missions.

2+ YOETop Secret/SCI eligible, U.S. citizenship, BS in Engineering, 2+ years in aerospace software, Python and C++, experience in flight software and satellite missions.

Python, C++, Docker, Kubernetes, ROS, NATS, grpc, Ansys STK

18h

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18h

Senior Software Engineer

Reston or Lexington

$97k-$165k/yr HybridFull Time

BAE SystemsLondon Stock Exchange: BA.: Produces advanced defense, aerospace, and information security systems.

5+ YOEBachelor’s in CS/Software Eng or related; 5+ years software dev; active Secret clearance; strong C/C++, Python; Linux; SDLC; collaboration.

C++, Python, Linux, SVN, Git, Make, CMake, TCP/IP

1mo

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1mo

Senior Software Engineer - Developer Services

Maryland, Maryland, United States

HybridFull Time

T. Rowe PriceNASDAQ: TROW: Global investment management firm providing funds and retirement services.

5+ YOE5+ years of total relevant experience; strong Java or Python; extensive AWS experience; microservices, REST APIs, CI/CD; Docker; OAuth2/OIDC/JWT; enterprise identity; strong problem-solving and communication.

Python, Java, Terraform, AWS, Docker, JSON/YAML, Git, CI/CD

1mo

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1mo

Senior Software Engineer (Big Data)

McLean, Virginia, United States

OnsiteFull Time

KDA Consulting: Provides IT engineering and cloud services for intelligence missions.

TS/SCI clearance, BS in CS/Engineering or related field, full stack development, big data tech (Hadoop/Spark/Kafka), Java/Python/C#, APIs/microservices, problem solving.

Hadoop, Apache Spark, Kafka, Java, Python, C#, REST APIs, Microservices, Front-end frameworks, Cloud (AWS)

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Senior GenAI Backend Platform Developer

Rockville or Jersey City or Denver or San Francisco or New York

HybridFull Time

FINRA: Regulates brokerage firms and exchange markets in the United States.

5+ YOESenior GenAI backend developer with 5+ years of experience in cloud-native systems, AWS, CI/CD, and secure software practices.

AWS Bedrock, AWS S3, AWS Fargate, AWS Lambda, AWS Step Functions, Jenkins, Git, Docker, Python, FastAPI