Senior Python Developer Jobs in Clayton, DE, US

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Senior Lead Software Engineer - Python/PySpark/AWS/AI

Wilmington or Plano

OnsiteFull Time

JPMorgan ChaseNYSE: JPM: Global financial services firm providing banking and investment solutions.

5+ YOE5+ years of applying software engineering with hands-on design, development, testing, and operations.

Python, PySpark, AWS, Databricks, Snowflake, ETL, datapipelines

1mo

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1mo

Lead Software Engineer II – Java & Python

Wilmington, Delaware, United States

$100k-$135k/yr RemoteAll Commitments Available

Best Egg: Provides personal loans and credit cards for prime borrowers.

4+ YOE4-6 years of software engineering, strong Java/Python backend, AWS experience, SQL/NoSQL knowledge, CI/CD, Docker, and collaboration skills.

Java, Python, AWS, DynamoDB, RDS, PostgreSQL, DocumentDB, Docker, ECS, EKS, CloudWatch, Datadog, CI/CD

2mo

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2mo

AI Platform Engineer, Python - Lead Software Engineer

Wilmington, Delaware, United States

$152k-$215k/yr OnsiteFull Time

JPMorgan ChaseNYSE: JPM: Global financial firm providing banking and investment management services.

5+ YOE5+ years software engineering; Python; DevOps; CI/CD; cloud; AI feature development and security.

Python, DevOps, CI/CD, cloud platforms, automation, testing, Terraform

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Senior Software Developer

Aberdeen, Maryland, United States

$104k-$181k/yr OnsiteFull Time

ParsonsNYSE: PSN: Provides engineering and technology services for infrastructure and defense.

5+ YOEDesign, develop, and implement software across multiple languages; lead components; troubleshoot; mentor and guide developers; ensure secure, maintainable results. Must be a US citizen with SECRET clearance.

Python, C++, Java, C#, Go, Docker, Kubernetes, CI/CD

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Senior Software Applications Developer

West Chester or United States or North America

RemoteFull Time

New Era Technology: Global provider of managed IT services and technology solutions.

4+ YOEBachelor’s degree in Computer Science; 4+ years software development; experience with Java, Python, C#; CI/CD tools like Jenkins, GitLab, TeamCity; software design, testing, and automation.

Java, Python, C#, CI/CD, Version Control, Bug Tracking, Automation Frameworks

2mo

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2mo

Senior Software Test Engineer (onsite)

New Freedom, Pennsylvania, United States

$80k-$110k/yr OnsiteFull Time

Johnson ControlsNYSE: JCI: Provides building products, HVAC systems, and fire safety solutions.

5+ YOESenior Software Test Engineer with 5+ years in software development and testing; 4+ years manual testing (preferably automated); proficient in C/C++, Python; hardware testing with oscilloscopes, logic analyzers, and JTAG; experience leading testing for embedded systems; US citizen or permanent resident.

C, C++, Python, Oscilloscopes, Logic Analyzers, JTAG

2mo

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2mo

Senior IAM Developer

Annapolis Junction, Maryland, United States

OnsiteFull Time

Interclypse: Designs software and hardware for government and commercial clients.

7+ YOESenior IAM developer/architect with 7 years in systems engineering, 5+ years IAM leadership, enterprise IAM design, and strong proficiency in SAML, OAuth/OIDC, LDAP/SCIM; hands-on with Entra ID, ForgeRock, AWS IAM Identity Center, SailPoint; Python/Java/.NET.

Microsoft Entra ID, ForgeRock, AWS IAM Identity Center, AWS Secrets Manager, SailPoint, SAML, OAuth 2.0, OIDC, LDAP, RBAC, PAM, MFA, Python, Java, .NET

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Senior Software Engineer

Aberdeen, Maryland, United States

$140k-$225k/yr HybridFull Time

LufCo: Provides specialized engineering and analytic services for defense missions.

7+ YOE7+ years software engineering experience; BS in CS/CE/EE; strong C/C++/Java/Python; CUDA; Docker; REST APIs; TS/SCI clearance; willing to travel; hybrid in Aberdeen, MD.

C, C++, Java, Python, Shell Scripting, Google Protocol Buffers, HTTP REST APIs, Docker, RPMs, CUDA

1mo

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1mo

Senior Software Engineer

Malvern, Pennsylvania, United States

HybridFull Time

CubeSmartNYSE: CUBE: Owns and operates self-storage facilities across the United States.

6+ YOE6-9 years of web app development, Ruby on Rails, JavaScript, REST APIs, PostgreSQL, Linux, and strong problem-solving skills.

Ruby on Rails, JavaScript, Python, PostgreSQL, Linux, Git, REST API, OpenAPI, JSON, XML, Redis, Docker, Kubernetes, Jenkins, JIRA, OAuth2, OIDC, SSL, SSH, SFTP/FTP, GraphQL

2mo

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2mo

Full Stack Software Engineer, Senior

Hanover or Annapolis Junction

$87k-$198k/yr HybridFull Time

Booz AllenNYSE: BAH: Provides management and technology consulting services to government and commercial clients.

5+ YOESenior full stack engineer with 5+ years' experience, Python/React/FastAPI, Docker, Agile, TS/SCI clearable, and degree or equivalent experience.

Python, React, FastAPI, Docker, APIs, UNIX/Linux

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Software Engineer 3 - Go/Python/Kubernetes/Kafka/Ansible

Annapolis Junction, Maryland, United States

$130k-$270k/yr OnsiteFull Time

Captivation Software: Provides specialized software engineering for the intelligence and defense communities.

20+ YOESenior software engineer with TS/SCI clearance, 20 years SWE experience; BS in CS/CE/EE; Go/Python; Kubernetes, Helm, GitOps, Terraform, Ansible; lead architecture and mentor engineers.

Go, Python, Kubernetes, Helm, GitOps, Kafka, Terraform, Ansible

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Senior Software Engineer

Annapolis Junction, Maryland, United States

$170k-$230k/yr OnsiteFull Time

GliaCell Technologies: Software and systems engineering for the intelligence community.

7+ YOEActive TS/SCI with poly clearance required; 9 years with bachelor's or 7 years with master's; US citizenship; AWS, microservices, API development, Lambda, RDS, Grafana, Prometheus, MongoDB, DocumentDB.

Java, Spring Boot, Python, AWS, MongoDB, RDS, Grafana, Prometheus, DocumentDB, COTS/GOTS

1mo

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1mo

Senior Developer (Newtown Square, PA, US, 19073)

Newtown Square, Pennsylvania, United States

$153k-$196k/yr OnsiteFull Time

SAPFrankfurt Stock Exchange: SAP: Sells enterprise resource planning and business management software solutions.

4+ YOEBachelor's or Master’s in CS/Data Science with 4–6 years of related experience; strong Java/Python, frontend, and devops skills.

Java, Python, HTML, CSS, AngularJS, Sonar, JUnit, Sahi, SOAP, REST, SQL, SCM, Jira, CI/CD, Machine Learning

1mo

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1mo

Senior Quantitative Equity Systems Developer

Malvern, Pennsylvania, United States

HybridFull Time

Vanguard: Provides mutual funds, ETFs, and investment management services.

10+ YOETen+ years related work, at least 5 years development; prior investment systems experience; strong Python and cloud-native experience; knowledge of quantitative investing; front-office technology background.

Python, Polars, AWS, SageMaker, EC2, CloudWatch, ECS, Lambda, PostgreSQL

1mo

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1mo

Senior Software Engineer- Enrichment

Oaks, Pennsylvania, United States

OnsiteFull Time

RevSpring: Provides patient engagement and payment solutions for healthcare providers.

5+ YOE5+ years building production software with Python; 5+ years with relational and NoSQL databases; 5+ years collaborating with Git.

Python, BigQuery, GCP, AWS, Pulumi, LangChain, LangGraph, TypeScript, React, Docker, Git

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Senior Application Developer

Annapolis Junction, Maryland, United States

$194k-$249k/yr OnsiteFull Time

Intelliforce: Provides engineering and technical solutions for the intelligence community.

12+ YOETop Secret clearance with Full Scope Polygraph; US citizenship; 12 years of relevant experience with a Bachelor's or 10 years with a Master's; ability to obtain/maintain required clearance.

C, C++, Python, Rust, Go, Git, Subversion, Jira, Confluence, Ghidra, Java, JavaScript, PowerShell, Bash, Assembly

2mo

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2mo

Senior Software Engineer - Vehicle Modeling

Sunnyvale or Mountain View or Milford

$129k-$198k/yr HybridFull Time

General MotorsNYSE: GM: Manufacturer of passenger cars, trucks, and automotive components.

3+ YOEBachelor's degree in Mechanical Engineering, Applied Physics, Aerospace Engineering, Computer Science, or related field; 3+ years in vehicle modeling; expertise in vehicle system modeling; strong Python and C/C++; Matlab/Simulink and data analysis experience.

Python, C/C++, Matlab/Simulink, System ID, data analysis

2mo

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2mo

Senior Software Developer (Secret Clearance Required)

Aberdeen, Maryland, United States

HybridFull Time

NextGen Federal Systems: Provides software engineering and IT solutions for federal agencies.

3+ YOEDoD security clearance, 3-5+ years in software development, strong Android/Java/C/C++, DevOps tools, Linux, APIs, Docker, Kubernetes, cloud, Agile.

Git, Gitlab, Jira, Nexus, Artifactory, Gradle, Bash, Python, Docker, Kubernetes, Linux, Android, Java, JavaScript, C, C++, C#, APIs, NVIDIA CUDA, ElasticSearch, Kibana

1mo

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1mo

Senior Backend Engineer – AI Agent

Wilmington, Delaware, United States

RemoteFull Time

Athena: Provides premium managed executive assistant services for global leaders.

5+ YOE5+ years backend development; Python or Node.js; SQL/NoSQL databases; REST APIs; microservices; cloud (AWS/Azure/GCP); AI infra experience preferred.

Python, Node.js, SQL, NoSQL, RESTful APIs, Microservices, AWS, Azure, GCP, AI infrastructure

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Senior Systems Engineer

Aberdeen Proving Ground, Maryland, United States

$135k-$155k/yr OnsiteFull Time

QED Systems: Provides engineering and technical services for defense C5ISR systems.

10+ YOEBachelor's in CS/Engineering; 10+ years experience; active Secret clearance; RF, systems/communications, or software engineering; MATLAB/Python; travel up to 25%.

MATLAB, Python, RF test equipment, data analysis tools

1mo

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1mo

Senior Controls Engineer

Baltimore or Newark or Allentown or Philadelphia

$85k-$120k/yr OnsiteFull Time

Eastern Lift Truck: Provides material handling equipment sales, rentals, parts, and service.

7+ YOE1+ MgmtLead design/implementation of control systems; strong PLC/SCADA/HMI, C/C++, Python; 7-10 years in industrial automation; Bachelor’s in Electrical/Control Systems engineering; forklift experience a plus.

PLCs, SCADA, HMI, embedded systems, C, C++, Python, simulation tools

2mo

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2mo

Senior Test Engineer

Newark, Delaware, United States

$98k-$153k/yr OnsiteFull Time

HologicNASDAQ: HOLX: Provides medical technology and diagnostic solutions for women's health.

2-5 years with Bachelor or 1-3 with Master or 0-1 with PhD; hands-on lab testing; DFМ knowledge; LabVIEW/C/C#/Python; CAN/CANBUS, I2C, SPI; DFM; strong docs.

Multimeters, Oscilloscopes, LabVIEW, C, C#, Python, NI platforms

1mo

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1mo

Software Engineer, Vertical Lift (Experienced or Senior)

Ridley Park, Pennsylvania, United States

$135k-$232k/yr OnsiteFull Time

BoeingNYSE: BA: Designs and manufactures aircraft, defense systems, and space technology.

5+ YOEBachelor’s in engineering; 5+ years full life-cycle software development; proficiency in C, C++, C#, Python, Java, Ada, Linux; ability to obtain US Secret clearance.

C, C++, C#, Python, Java, Ada, Linux, Git, DOORS, CI/CD

1mo

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1mo

Software Engineer, Vertical Lift (Experienced or Senior)

Ridley Park, Pennsylvania, United States

$135k-$232k/yr OnsiteFull Time

BoeingNYSE: BA: Designing and manufacturing commercial aircraft and defense systems.

5+ YOEBachelor's degree in engineering; 5+ years full software development lifecycle experience; proficiency in C, C++, C#, Python, Java, Ada, Linux; ability to obtain US Secret clearance.

C, C++, C#, Python, Java, Ada, Linux, Git, CI/CD, DOORS, DO-178C

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OCO Software Developer/Engineer

Annapolis Junction, Maryland, United States

$149k-$201k/yr HybridFull Time

General Dynamics Information TechnologyNYSE: GD: Provides mission-critical IT services to government and defense organizations.

8+ YOE8+ years of related experience; proficient in C/C++, Python; ability to obtain TS/SCI clearance; develop cyber tools and software.

C, C++, Python, Rust, Go, Git, CI/CD

1mo

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1mo

Software Systems Engineer Senior

Aberdeen, Maryland, United States

$116k-$262k/yr OnsiteFull Time

RSC2: Provides technical and engineering services to federal defense agencies.

10+ YOESenior software systems engineer with 10+ years in the software lifecycle, TS/SCI clearance, leading contractor teams, RF architectures, EW/SIGINT, and MOSA; Bachelor's in CS or Software Engineering.

Java, Python, C++, MOSA, AWS, Azure, containerization, microservices, CI/CD, Scrum, Kanban, APIs, Databases, Cybersecurity

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Software Developer

Annapolis Junction, Maryland, United States

OnsiteFull Time

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

7+ YOE7+ years in software development; TS/SCI with Poly; Bachelor's in CS; Linux development; C/C++, Python; Git/GitLab; IDEs (VSCode, Eclipse); Agile (Scrum); geospatial processing and SDR familiarity.

Linux, C/C++, Python, Git, GitLab, VS Code, Eclipse, Agile (Scrum)

1mo

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1mo

Senior Front-End Software Engineer

Fort Meade, Maryland, United States

$132k-$290k/yr OnsiteFull Time

CACINYSE: CACI: Provides information technology and professional services to government clients.

12+ YOETS/SCI with Polygraph; BS/MS in CS or related; 12+ years with BS or 10+ with MS; 4+ years SWE substitution; expertise in 3+ areas; 10+ years in 4 areas.

Python, Java, C++, Svelte, TypeScript, MongoDB, Unix/Linux, XML, PHP, Perl

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Senior Cyber Security Engineer

Wilmington, Delaware, United States

RemoteFull Time

CSC: Provides global business administration and compliance solutions.

5+ YOE5+ years in security operations or SIEM/SOAR; Cortex XSIAM; SIEM/XDR and threat detection; XQL/KQL/SPL; Python scripting; enterprise-scale experience; Bachelor's degree; relevant certifications preferred.

Cortex XSIAM, XQL, KQL, SPL, Python, MITRE ATT&CK, Cortex XDR

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Senior Machine Learning Engineer

Birmingham or San Francisco or Minneapolis or Remote

$114k-$189k/yr RemoteFull Time

Shipt: Provides same-day delivery services from local retailers via app.

5+ YOEPhD or Master’s in CS/Statistics, 5+ years production ML, ML frameworks, adversarial/fraud environments, Python and ML libraries, data pipelines, 6+ months GenAI/LLM experience, strong communication.

Python, TensorFlow, PyTorch, scikit-learn, Airflow, Spark, Kafka, GenAI, LLM, RAG, agents

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Senior Automation Developer

Camden, New Jersey, United States

$90k-$105k/yr HybridFull Time

Conner Strong & Buckelew: Provides commercial insurance brokerage and risk management consulting services.

4+ YOE4+ years automation development in Microsoft ecosystem; degree in CS or equivalent; experience with AI agents, RPA, data pipelines; Power Automate; Azure; APIs; scripting.

Microsoft Power Automate, Power Platform, Copilot Studio, Copilot agents, WorkIQ, Azure, SQL, Power BI, Python, PowerShell

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Senior Application\Middleware Engineer

Charleston or Newark or Bellevue or Plano or Detroit or Nashville or Tulsa or New York

OnsiteFull Time

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

10+ YOEBachelor’s degree in engineering; 10+ years in a global environment; AWS certifications or equivalent; strong middleware experience (IBM WebSphere, Apache Tomcat, Java, JBoss, SFTP, Dynatrace, IIS, etc.); Windows/Linux server administration; AWS services including S3, EKS, ECS, containers, Kubernetes, Terraform; scripting in PowerShell or Python a ...

AWS, Linux, Windows Server, IBM WebSphere, Apache Tomcat, Java, JBoss, SFTP, Dynatrace, IIS, Terraform, PowerShell, Python, ServiceNow, Microsoft Teams, SharePoint, Kubernetes, EKS, S3, ECS

2mo

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2mo

Entry-Senior Software Engineer- TS/SCI w/ Polygraph

Annapolis Junction, Maryland, United States

$95k-$230k/yr OnsiteFull Time

Sunayu: Software and cybersecurity engineering services for government intelligence agencies.

Software engineer with Java, Python, Git; containerization; CI/CD; Agile; Spring, Hibernate, MySQL; BS in CS or related, 4 years exp may substitute

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

1mo

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1mo

1650 - Software Developer

Belcamp, Maryland, United States

$83k-$140k/yr OnsiteFull Time

Sigma Defense: Develops tactical communications and intelligence systems for defense.

10+ YOE10+ years in software development; 5+ years DoD software support; strong requirements analysis, architecture, and coding skills; Java, Python, C#, and JavaScript; ability to document software; U.S. citizen; Secret security clearance or higher; Bachelor's Science degree.

Java, Python, C#, JavaScript

1mo

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1mo

Senior Lead Data Engineer (Bank Tech)

McLean or Wilmington or Richmond

$209k-$262k/yr OnsiteFull Time

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

6+ YOEBachelor's degree; 6+ years in application development; 2+ years in big data; 1+ year cloud computing (AWS/Azure/GCP).

Java, Scala, Python, Redshift, Snowflake, Hadoop, Hive, Spark, Kafka, MySQL, MongoDB, Cassandra, UNIX/Linux

2mo

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2mo

Software Engineer 3

Annapolis Junction, Maryland, United States

OnsiteFull Time

RealmOne: Provides technology and intelligence services for national security missions.

20+ YOETwenty years SWE experience; BS in computer science; strong Python, Kubernetes, Git, CI/CD, sprint development; RF experience; active security clearance with polygraph.

Python, Kubernetes, Git, CI/CD, Sprint

1mo

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1mo

Senior System Test & Validation Engineer

New Castle, Delaware, United States

$92k-$153k/yr OnsiteFull Time

Waters CorporationNYSE: WAT: Provides analytical laboratory instruments, software, and consumables.

5+ YOE5+ years in system testing/validation for complex products; Linux-based systems or IoT experience; end-to-end validation across hardware and software; test automation with Python; strong root-cause analysis; lab with physical devices.

Linux, IoT, Python, CI/CD, Jenkins, GitHub Actions, GitLab CI, Azure DevOps, Oscilloscope, Multimeter, Logic analyzer

2mo

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2mo

Software Developer (55390)

Aberdeen, Maryland, United States

$100k-$110k/yr OnsiteFull Time

DataPath: Manufactures satellite communication terminals and provides ground system solutions.

10+ YOEBachelor's degree and 10+ years in software development; DoD experience preferred; US citizen with active secret clearance.

Java, Python, C#, JavaScript

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AI Full Stack Engineer Sr Stf

Bethesda or Dover or Fort Worth or Highlands Ranch or King of Prussia or Moorestown or Orlando or Stratford

RemoteFull Time

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

15+ YOESenior AI/ML engineer with full-stack development, cloud deployment, and data/AI experience; US citizenship required; Bachelor's or higher in CS/IT/AI.

Python, CI/CD, GitLab, Jenkins, ArgoCD, RDS, Redshift, Snowflake, LLMs, MLOps, GenAI, API Development, Java, C++