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Java Python Developer Jobs in Clayton, DE, US

130+ java python developer jobs from 55 companies hiring in Clayton, DE, US.

All jobs in Clayton, DE, USJava Python Developer Jobs in United States
Nearby:Smyrna·Dover·Middletown·Bridgeton·Bear·Glasgow·Elkton·Newark·Brookside·Wilmington·South Vineland·Millville·Vineland·Edgewood·Bel Air South·South Bel Air·Chester·Sewell·North Bel Air
133 jobs- Clayton • 50 miles
1mo
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Lead Software Engineer II – Java & Python
Wilmington, Delaware, United States
$100k-$135k/yr RemoteAll Commitments Available
Best Egg
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
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1mo
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Java Software Engineer
Annapolis Junction, Maryland, United States
$147k-$249k/yr OnsiteFull Time
BAE Systems
BAE SystemsLondon Stock Exchange: BA.: Produces advanced defense, aerospace, and information security systems.
Bachelor's in CS or related; experience with Java/JEE, Python, C/C++, SQL, SOAP/WSDL; UI development; Windows/Linux; Jenkins; TS/SCI Polygraph; strong software development principles.
Java, Python, C/C++, SQL, XML, HTML, Tomcat, WebLogic, JBoss, Jenkins, Postgres, Oracle, Selenium, Mockito, Cucumber, UFT, FitNesse, TDD, SAFe
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2mo
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Lead Software Engineer- Python, Java
Columbus or Plano or Wilmington
OnsiteFull Time
JPMorgan Chase
JPMorgan ChaseNYSE: JPM: Global financial firm providing banking and investment management services.
5+ YOE5+ years of software engineering; strong Python and/or Java; open source experience; git proficiency; agile/CI-CD; system design; data concepts.
Python, Java, Git, GitHub, CI/CD, Pydantic, Pandas, Numpy, Jupyter
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4d
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Java Software Engineer
Annapolis Junction, Maryland, United States
OnsiteFull Time
Set of X
Set of X: Provides specialized engineering services for U.S. national security missions.
7+ YOESenior-level software engineer proficient in Java, Python, Docker/Kubernetes, CI/CD, microservices; TS/SCI clearance with polygraph; 7+ years SWE experience; BS in CS or related field with experience substitutions.
Java, Python, Shell, Git, Nexus, Maven, JavaScript, JUnit, IDE, Docker, Kubernetes, CI/CD, Spring, Hibernate, MySQL, Web Services, Vaadin, GWT, Nexus, SonarQube
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3w
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Sr. Lead Software Engineer - Java/ Python/ Go
Jersey City or Wilmington or Plano
$171k-$260k/yr OnsiteFull Time
JPMorgan Chase
JPMorgan ChaseNYSE: JPM: Global financial services firm providing banking and investment solutions.
5+ YOE5+ years in software development; proficient in Java, Python, or Go; strong AWS experience; Kafka; database design; CI/CD; cloud security; agile methods; financial services domain knowledge.
Java, Python, Go, AWS, Kafka, Docker, CI/CD, APIs, TDD, Security, Cloud
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Application Engineer - IV
Malvern, Pennsylvania, United States
OnsiteFull Time
Vanguard
Vanguard: Provides mutual funds, ETFs, and investment management services.
8+ YOEEight years of related experience with strong development skills; in-office five days; proficiency in AWS, Python, Java; troubleshooting and production support.
AWS, Python, Java, MS Office programming tools
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3w
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Associate Database Platform Developer
Wilmington, Delaware, United States
$90k-$110k/yr HybridFull Time
BlackRock
BlackRockNYSE: BLK: Provides investment management and financial technology services globally.
Experience with Python, Perl, or Java; basic SQL and relational databases; software development basics; strong problem solving; team collaboration.
Python, Perl, Java, SQL
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Software Engineer
Annapolis Junction or Reston
$104k-$192k/yr OnsiteFull Time
Accenture Federal Services
Accenture Federal ServicesNYSE: ACN: Provides technology and consulting services to U.S. federal agencies.
2+ YOE2+ years software development; C#/.NET/Python/Java/C++ or C; distributed programming; building pipelines; on-call support; TS/SCI with poly; US passport.
C#, NET, Python, Java, C++, C, Azure Data Factory, PowerBI
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3w
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Junior Computer Scientist/Engineer
Aberdeen, Maryland, United States
$75k-$131k/yr OnsiteFull Time
Parsons
ParsonsNYSE: PSN: Provides engineering and technology services for infrastructure and defense.
2+ YOEBachelor's in engineering or related field with 2 years software development experience; programming in Python/C++/Java; SECRET clearance required.
Python, C++, Java, Cloud platforms
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2w
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Summer 2026 Software Developer Internship
Annapolis Junction, Maryland, United States
$26-$35/hr OnsiteFull Time
GDIT
GDITNYSE: GD: Delivers IT and mission services to government agencies.
0+ YOE0+ years of related experience; proficiency in Python, Java, C/C++, Rust, JavaScript/TypeScript; US citizenship required; software development best practices; teamwork.
Python, Java, C/C++, Rust, JavaScript/TypeScript
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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
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2mo
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Software Engineer
Annapolis Junction or Hanover
$50k-$290k/yr OnsiteFull Time
The Swift Group
The Swift Group: Engineering and technology solutions for the national security community.
US citizen with active TS/SCI clearance; Linux proficiency; programming in Python/Java/C/C++/JavaScript; Git; container tech (Docker/Kubernetes); shell scripting; experience with CI/CD; strong security-focused software development.
Bash, Python, Java, C, C++, JavaScript, Git, Docker, containerd, Podman, Kubernetes, Ansible, FastAPI, React, MongoDB, PostgreSQL, RabbitMQ, Kafka, Elastic Stack, Prometheus, Grafana, Splunk, Jira, Confluence, Slurm, AWS
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1w
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Senior Software Applications Developer
West Chester or United States or North America
RemoteFull Time
New Era Technology
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
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2w
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Software Engineer 3
Annapolis Junction, Maryland, United States
OnsiteFull Time
RealmOne
RealmOne: Provides cybersecurity and intelligence services for national security missions.
20+ YOE20 years SWE experience; Bachelor's in CS; Linux; Python, Java, C++; security clearance; geolocation/RF knowledge.
Python, Java, C++, Linux
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1mo
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Software Engineer, Vertical Lift (Experienced or Senior)
Ridley Park, Pennsylvania, United States
$135k-$232k/yr OnsiteFull Time
Boeing
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
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Software Engineer, Vertical Lift (Experienced or Senior)
Ridley Park, Pennsylvania, United States
$135k-$232k/yr OnsiteFull Time
Boeing
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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2w
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Software Engineer - 90402844 - Washington DC, Philadelphia PA or Wilmington DE (US)
Washington or Wilmington or Philadelphia
$72k-$93k/yr OnsiteFull Time
Amtrak
Amtrak: Operates America's national intercity passenger railroad system.
1+ YOEBachelor’s degree or equivalent; 1+ year software engineering; Java, Python, SQL; frontend/backend development; CI/CD and cloud; onsite in DC/DE/PA.
Angular, React, Java, Python, SQL, NoSQL, AWS, Azure, CI/CD
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1mo
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Senior Developer (Newtown Square, PA, US, 19073)
Newtown Square, Pennsylvania, United States
$153k-$196k/yr OnsiteFull Time
SAP
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
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Software Engineer 3
Annapolis Junction, Maryland, United States
$176k-$238k/yr OnsiteFull Time
General Dynamics Information Technology
General Dynamics Information TechnologyNYSE: GD: Provides mission-critical IT services to government and defense organizations.
8+ YOE8+ years related experience; BS; TS/SCI clearance with polygraph; strong Java/Linux/Python; Spark/airflow; SQL databases; Jira/Confluence; Git.
Linux, Python, Java, Apache Spark, Apache Airflow, SQL, MySQL, MariaDB, PostgreSQL, Jupyter Notebook, pandas, NumPy, Git, HPC Slurm, JIRA, Confluence
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3w
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Software Engineer - Mid Level
Annapolis Junction, Maryland, United States
$105k-$185k/yr OnsiteFull Time
Lockheed Martin
Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.
7+ YOEBachelor's in Engineering/Computer Science; 7+ years SWE; Linux; Python/C++/Java/JavaScript; TS/SCI w/Poly; Maryland location.
Python, C++, Java, JavaScript, Linux, GitLab, GitHub, Jira, Confluence
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5d
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Software Engineer - Junior Level
Annapolis Junction, Maryland, United States
$98k-$123k/yr HybridFull Time
Boeing Intelligence & Analytics
Boeing Intelligence & AnalyticsNYSE: BA: Provides intelligence analytics and cyber solutions for national security.
0+ YOEBachelor's in CS or related field or 4 years of software engineering experience; TS/SCI with poly; Agile, Jira/Confluence; experience with Java/C++/Python, Git, Postgres; AWS preferred.
Git, Java, C++, Python, PostgreSQL, Jira, Confluence, AWS, Docker, Kubernetes, HAProxy, Nginx, Elastic Stack
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2mo
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Lead CNO Developer (Onsite)
Annapolis Junction, Maryland, United States
OnsiteFull Time
Nightwing
Nightwing: Provides cybersecurity and intelligence services for national security missions.
12+ YOE5+ MgmtBachelor’s degree plus extensive experience; 12+ yrs in programming (Assembly, C, C++, Java, Perl, Python); 10+ yrs on CNO tools; 5+ yrs leading teams; 4+ yrs evading IDS; 4+ yrs sockets programming.
Python, C, C++, Java, Perl, Assembly, Bash, PowerShell, IDA Pro, Ghidra, OllyDbg, Git, Networking, IDS evasion
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3w
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CyberTron Contract: Software Engineer I
Aberdeen, Maryland, United States
$85k-$110k/yr OnsiteFull Time
Techximius: Provides specialized IT and engineering services for defense missions.
1+ YOEEntry-level software engineer with skills in Java/C/C++, Python, or JavaScript; knowledge of backend, web apps, and microservices; DoD environment familiarity preferred.
Java, C/C++, Python, JavaScript, Backend development, Web technologies, Microservices, SQL
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1w
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Cloud Software Engineer CSWE2 - 27151
Hanover, Maryland, United States
OnsiteFull Time
PAX Engineering
PAX Engineering: Provides software and systems engineering for the intelligence community.
Experience with DevOps, ElasticSearch, NiFi, Python, Java/Spring Boot, and Angular.
Python, Java/Spring Boot, Angular, Elastic Search, NiFi, DevOps
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4w
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Senior Software Engineer
Aberdeen, Maryland, United States
$140k-$225k/yr HybridFull Time
LufCo
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
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1d
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Software Engineer Level 2
Annapolis Junction, Maryland, United States
OnsiteFull Time
Jovian Concepts
Jovian Concepts: Provides technical services and engineering to the intelligence community.
14+ YOETS/SCI with Polygraph clearance required; 14+ years SWE experience; BS in CS or 4 years equivalent experience; Zabbix, Python and Java in Linux environment.
Python, Java, Zabbix, Linux
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2mo
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Senior Software Developer (Secret Clearance Required)
Aberdeen, Maryland, United States
HybridFull Time
NextGen Federal Systems
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
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2mo
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Entry-Senior Software Engineer- TS/SCI w/ Polygraph
Annapolis Junction, Maryland, United States
$95k-$230k/yr OnsiteFull Time
Sunayu
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
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3w
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Agile Developer 3
Annapolis Junction, Maryland, United States
OnsiteFull Time
Base-2 Solutions
Base-2 Solutions: Delivers engineering and technology services for national security.
Active TS/SCI with Full Scope Polygraph; 9 years with Bachelor's or 7 years with Master's; AWS tools; experience in Java/Spring Boot, microservices, CI/CD, and related tools.
Java, Spring Boot, Python, AWS, DynamoDB, Lambda, CloudWatch, Maven, GitLab, GitOps, Kubernetes, Docker, Ansible, NoSQL, OAuth/OIDC, Cypress, Cucumber
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Embedded Developer
Annapolis Junction, Maryland, United States
OnsiteFull Time
Tiber Technologies: Providing specialized engineering and security services for federal missions.
Must be a U.S. citizen; active clearance with a polygraph; Bachelor's degree in CS, engineering, or related field; embedded/low-level development experience preferred
Linux, Windows, Embedded systems, Ghidra, C, C++, Python, Rust, Go, Git, Subversion, Jira, Confluence, PowerShell, Bash, Assembly, Java, JavaScript
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2mo
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Software Engineer
Fort Meade, Maryland, United States
$200k-$230k/yr OnsiteFull Time
Markon
Markon: Provides consulting and mission support services to federal agencies.
14+ YOETS/SCI with poly; Bachelor's in CS/Engineering; 14 years experience; Linux, C++, Java; scripting; Git; Docker; strong problem-solving and communication.
C++, Java, Shell, Python, JavaScript, Bash, Git, Docker, Linux
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2mo
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Software Developer (55390)
Aberdeen, Maryland, United States
$100k-$110k/yr OnsiteFull Time
DataPath
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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Senior IAM Developer
Annapolis Junction, Maryland, United States
OnsiteFull Time
Interclypse
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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Software Engineer - Level II
Aberdeen Proving Grounds, Maryland, United States
$86k-$150k/yr OnsiteFull Time
Augustine Consulting
Augustine Consulting: Provides technical and engineering services to the US Department of Defense.
3+ YOEUS citizen; Secret clearance; degree with experience in software development and SDLC.
Java, C++, Python, JavaScript, Git, TCP/IP
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2mo
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DevOps Engineer (RC-3)
Annapolis Junction, Maryland, United States
$200k-$230k/yr OnsiteFull Time
Legato
Legato: Provides IT engineering services to the national intelligence community.
10+ YOETS/SCI w/ Poly, 10+ years in Agile AWS/cloud, VMware, Kubernetes, Docker, Java/Python, Git; bachelor’s degree in a related field.
VMware, Kubernetes, RKE2, Kafka, Docker, Java, NiFi, PostgreSQL, Red Hat Enterprise Linux, Git, Python, Ruby, Perl, C, C++, AWS, Confluence, Jira
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Manuel Test Engineer
Annapolis Junction, Maryland, United States
$150k-$240k/yr OnsiteFull Time
Navstar
Navstar: Provides IT and cybersecurity solutions to the intelligence community.
8+ YOEActive TS/SCI clearance with Polygraph; 8+ years of relevant experience; full SDLC testing; experience with formal test events; collaboration with developers; lab testing with physical equipment; strong communication.
Automated testing tools, Java, Shell, Python
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Senior Software Engineer
Annapolis Junction, Maryland, United States
$170k-$230k/yr OnsiteFull Time
GliaCell Technologies
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
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DevOps Software Engineer (Mid or Senior)
Annapolis Junction, Maryland, United States
$150k-$210k/yr OnsiteFull Time
WOOD
WOOD: Provides specialized engineering and cybersecurity services to federal agencies.
8+ YOEEight+ years in DevOps; 5+ years managing development tooling and CI/CD; strong Windows and Linux admin; scripting in Java, Groovy, Python, PowerShell, Bash; experience with IDEs and container platforms; strong communication and team collaboration.
CI/CD tools, Docker, Kubernetes, Linux, Windows, PowerShell, Python, Java, AngularJS, Eclipse, VS Code, Rhapsody, WebStorm, Git, Jenkins
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2mo
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Lead Data Engineer (Bank Tech)
Wilmington, Delaware, United States
$179k-$205k/yr OnsiteFull Time
Capital One
Capital OneNYSE: COF: Provides digital banking, credit cards, and consumer financing services.
4+ YOELead data engineer with 4+ years in application development, 2+ years in big data, and 1+ year in cloud computing (AWS/Azure/GCP).
Java, Scala, Python, SQL, NoSQL, MongoDB, Cassandra, Redshift, Snowflake, Hadoop, Hive, Kafka, Spark, Gurobi, MySQL, Unix/Linux, Shell scripting
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AI/ML Engineer
Aberdeen Proving Ground, Maryland, United States
$170k-$210k/yr RemoteFull Time
Nakupuna
Nakupuna: Provides professional services and technical solutions for federal agencies.
5+ YOE5+ years hands-on AI/ML production experience; Python/R/Java; TensorFlow/PyTorch/Scikit-learn; Palantir Foundry; Docker/Kubernetes/MLOps; cloud or hybrid environments; strong communication.
Python, R, Java, TensorFlow, PyTorch, Scikit-learn, Keras, Palantir Foundry, Docker, Kubernetes, MLflow
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HiringCafe market data

Java Python Developer Jobs market signals in Clayton, DE, 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
130+
Hiring companies
55
Fresh sample
51% new in 30d
Salary visibility
68% show pay

Companies appearing in this market

JPMorgan ChaseBoeingCapital OneGDITLockheed MartinParsonsAccenture Federal ServicesBest Egg

Work location mix in visible results

Onsite: 54Hybrid: 7Remote: 4