187 senior python developer jobs at 69 companies in Denton, MD

2mo
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365-369 - Senior Software Engineer
Fort Meade or Linthicum
$191k-$214k/yr OnsiteFull Time
ARSIEM
ARSIEM: Provides cybersecurity and software engineering to government agencies.
8+ YOEActive TS/SCI with polygraph; US citizenship; Bachelor's degree plus 8 years of experience; strong Python/Java; PySpark, Kubernetes, Docker, Elasticsearch; AI/ML tooling; cloud-native platforms; governance and agile delivery.
Python, Java, PySpark, Jupyter Notebooks, Kubernetes, Docker, Elasticsearch, GHOSTMACHINE, Query Time Analytics, Git, GitLab, Hugging Face, Bailo, OpenAI, AWS Bedrock, AWS SageMaker, AWS EKS, React, EX, Terraform
1mo
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Senior CNO Developer
Hanover or Aurora
$142k-$236k/yr OnsiteFull Time
ManTech
ManTech: Provides technology solutions for defense and intelligence agencies.
6+ YOETS/SCI w/ Poly clearance required. Requires 6+–12+ years technical experience (degree-dependent). Strong Python and C/C++ skills, low-level systems and TCP/IP/socket experience, debugging, and CNO capability development.
Python, C/C++, TCP/IP, Assembly, JIRA, Confluence, Crucible
1mo
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SENIOR SOFTWARE DEVELOPER/ENGINEER (CLOUD/CYBER)
Huntsville or Aberdeen or Colorado Springs or Crestview or Tupelo
OnsiteFull Time
Sentry Construction
Sentry Construction: Provides general contracting and comprehensive property maintenance services.
7+ YOEBS in CS/Software Eng or equivalent, 7+ years software development experience, DoD Top Secret/SCI eligibility, experience with Python, containers, AI/LLMs, databases, Linux, AWS, and Agile/Scrum.
LLMs, Ollama, LM Studio, Python, C#, Go Lang, React, JavaScript, HTML, CSS, Git, Docker, Bash, TensorFlow, PyTorch, SQL, MongoDB, PostgreSQL, Redis, Linux, AWS, RESTful API, Agile/Scrum
2mo
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Senior Systems Engineer
Annapolis Junction, Maryland, United States
$230k-$262k/yr OnsiteFull Time
Red Arch Solutions
Red Arch Solutions: Provides IT engineering solutions for the intelligence community.
20+ YOEActive TS/SCI with polygraph; 20+ years SE experience; BS in a related field; Linux CLI; scripting (Bash/Python); Linux admin in large environments; Delinea product experience; IAM and secrets; IaC (Ansible/SaltStack); containerization knowledge.
Linux, Bash, Python, Ansible, SaltStack, Delinea, Docker, Podman, LDAP, Active Directory, FreeIPA, Git
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Senior Systems Engineer
Annapolis Junction, Maryland, United States
OnsiteFull Time
Entegra Systems
Entegra Systems: Provides engineering and intelligence analysis for government missions.
12+ YOEActive TS/SCI with Poly; 12+ years in system engineering; 2+ years in cleared environment; Linux/Cloud; MySQL; scripting in Shell/Perl/Python; DNS/LDAP/Puppet/VMware; security scanning; Atlassian; Nagios; large-scale IT environments.
Linux, Red Hat, CentOS, Fedora, Solaris, MySQL, DNS, LDAP, Puppet, VMware vCenter, Nagios, Atlassian, Shell, Python, Perl, PKI, Kickstart, Hadoop, HDFS
1mo
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Senior Applied AI Engineer
Bowie, Maryland, United States
$124k-$216k/yr HybridFull Time
FTI Consulting
FTI ConsultingNYSE: FCN: Global business advisory firm helping organizations manage change and risk.
5+ YOE5+ years application or software development experience; expert in Python and C#/.NET; experience deploying AI solutions in the Azure AI ecosystem; experience with LLMs and AI orchestration tools preferred.
Python, C#, .NET, Microsoft Copilot, Azure AI Foundry, Semantic Kernel, LangChain, Autogen, Windows Server 2003, IIS, Microsoft SharePoint, Microsoft SQL Server 2000, Microsoft SQL Server 2005
1mo
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Senior Backend API Engineer
Linthicum, Maryland, United States
OnsiteFull Time
Quevera
Quevera: Software engineering and cloud solutions for government and defense.
7+ YOEActive TS/SCI with polygraph required; 7+ years backend development experience with Python, RESTful APIs, Django/Flask, Docker, MariaDB/MongoDB; experience with Git, Jira, Confluence; strong troubleshooting and communication skills.
Python, Django, Flask, MariaDB, MongoDB, JSON, XML, Docker, Git, Jira, Confluence, AWS
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Senior Software Engineer
Aberdeen, Maryland, United States
$90k-$198k/yr OnsiteFull Time
CGI
CGINYSE: GIB: Provides information technology and business consulting services.
10+ YOE10+ years software engineering experience in Defense, BA/BS or equivalent experience, proficiency with C++, Java, Python, C#, secure coding and Defense standards, DoD cybersecurity certification preferred.
C++, Java, Python, C#, Git, SVN, CI/CD, automated testing tools
2mo
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Senior Software Engineer
Severn, Maryland, United States
$134k-$236k/yr OnsiteFull Time
Lockheed Martin
Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.
Degree in EE/CE/physics/math, experience in embedded software for space systems, fluency in C/C++, Rust, Python, Agile experience, ability to obtain TS/SCI clearance, US citizenship required.
C/C++, Rust, Python, Microsoft, GNU/Linux
6d
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Senior Software Engineer
Gambrills, Maryland, United States
HybridFull Time
Wabtec
WabtecNYSE: WAB: Manufacturer of equipment and digital solutions for rail transportation.
7+ YOEB.S. in CS/MIS/Software/Electrical Engineering, minimum 7 years building scalable software, experience with Java/C/C++/C#/Python, knowledge of design patterns and REST APIs, strong communication and agile experience.
Java, C/C++, C#, Python, Node.js, JavaScript
1mo
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Senior Software Engineer - ARINCDirect Mobile (Onsite)
Annapolis, Maryland, United States
$96k-$182k/yr OnsiteFull Time
RTX
RTXNYSE: RTX: RTX provides advanced aerospace and defense systems and services.
5+ YOE5+ years professional iOS/mobile development with Swift and Objective-C; proficiency with Xcode, Core Data, RESTful APIs; strong troubleshooting and collaboration skills; Python experience recommended.
Swift, Objective-C, Python, Xcode, Core Data, Django, Atlassian Suite, Gitlab, RESTful APIs
2w
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Senior Software Developer (NLP)
Aberdeen, Maryland, United States
$104k-$181k/yr OnsiteFull Time
Parsons
ParsonsNYSE: PSN: Provides engineering and technology services for infrastructure and defense.
5+ YOEUS citizen with Secret clearance; bachelor’s degree with 5 years relevant software development experience (or 8 years experience); experience integrating NLP into production, proficiency in modern programming languages and mission-critical systems.
Python, C++, Java, C#, Go, Docker, Kubernetes, transformer-based frameworks, vector databases, LLM APIs
2mo
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Software Test Automation and QA Developer, Senior
Laurel, Maryland, United States
$87k-$198k/yr OnsiteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Consulting and technology services for government and commercial clients
4+ YOE4+ years in Python/Linux; 3+ years automated testing; Java, JSON, VS Code; Docker/Podman; Git, Pydantic, FastAPI, ReST; version-control in pipelines; TS/SCI with poly; BS in CS/Engineering +5 years or 10+ years without degree.
Python, Linux, Java, JSON, VS Code, Docker, Podman, Git, Pydantic, FastAPI, ReST
2mo
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Senior DevOps Engineer
Annapolis Junction, Maryland, United States
$200k-$280k/yr OnsiteFull Time
GliaCell Technologies
GliaCell Technologies: Software and systems engineering for the intelligence community.
12+ YOEActive TS/SCI with Polygraph clearance; US citizenship; 12+ years with BS, 10+ with MS, 14+ with Associates, or 16+ with HS; Security+CE; strong communication; able to work independently and in SCIF.
Terraform, Ansible, Python, Kubernetes, Docker, GitLab, Argo CD, AWS, Nifi
3mo
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Senior Cloud Engineer (4675)
Huntsville or Hollywood
$88k-$146k/yr OnsiteFull Time
SMX
SMX: Providing cloud, cybersecurity, and mission-focused technology solutions to government.
12+ YOESecret clearance; Bachelor's +12 years cloud experience (4 additional years may substitute for degree); DoD 8570/8140 certification; AWS or Azure expertise; IaC, DevSecOps, Kubernetes/Docker knowledge; Linux/Windows admin; strong security and RMF guidance experience.
AWS, Azure, Terraform, CloudFormation, Ansible, PowerShell, Bash, Python, Git, Jenkins, Docker, Kubernetes, CodePipeline, CodeCommit, SCC, RMF
3w
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Senior Elastic Engineer
Linthicum Heights, Maryland, United States
RemoteFull Time
CyberMaxx
CyberMaxx: Provides managed detection and response cybersecurity services to organizations.
7+ YOE7+ years in search/data or infrastructure roles with deep Elasticsearch/Elastic Stack expertise, ECK experience, cloud and container skills, scripting ability, and security operations knowledge.
Elasticsearch, Logstash, Beats, Elastic Agent, Kibana, ECK, Elastic Security, ES|QL, Docker, Kubernetes, AWS, Azure, Python, Go
3w
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Senior Software Engineer Applied AI
Annapolis or United States
RemoteFull Time
AMC Health
AMC Health: Provides remote patient monitoring and virtual care technology.
7+ YOE7+ years building production backend systems, strong Python skills, cloud distributed systems (AWS), hands-on LLM/generative AI experience, ML lifecycle proficiency, and disciplined data handling in regulated environments.
Python, AWS, LLMs
1mo
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Application Developer (backend) 4
Linthicum, Maryland, United States
$198k-$212k/yr OnsiteFull Time
Lentech
Lentech: Provides mission-critical IT and engineering solutions for government agencies.
6+ YOEDevelop backend Python microservices and ReST endpoints using Django/Flask; work with MongoDB or MariaDB, Docker, and CI tooling; 6+ years experience typically required depending on degree.
Python, Docker, Django, Flask, MariaDB, MongoDB, ReST, JSON, XML, Jira, Confluence, Git, AWS
5d
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Senior Full Stack Developer - SAAS & AI Platforms
Annapolis, Maryland, United States
HybridFull Time
CyKor: Provides IT modernization and cybersecurity solutions for federal agencies.
7+ YOE7+ years professional software development; experience building/operating production SaaS; modern frontend framework and backend language proficiency; API, data modeling, auth, Docker, Kubernetes, CI/CD experience.
React, Angular, Vue, Python, TypeScript, Node.js, Java, C#, REST, OAuth 2.0, OpenID Connect, SAML, JWT, Git, Docker, OCI-compatible container runtime, Kubernetes, Red Hat OpenShift, Helm, GitOps, Salesforce, PostgreSQL, Redis
2w
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Senior Staff Systems Algorithm Engineer
Baltimore or Linthicum
$184k-$276k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Designs and manufactures advanced aerospace and defense systems.
10+ YOEActive US Secret clearance transferable, US citizenship, bachelor+10+ years (or equiv), experience leading teams, EO/IR sensor and physics-based modeling expertise, Python or Matlab proficiency, ability to obtain Special Program Access.
Python, Matlab

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