Java Application Developer Jobs in Adelphi, MD, US

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Applications Developer

McLean, Virginia, United States

OnsiteFull Time

Bridge Core: Provides technical services and cybersecurity solutions to government agencies.

0+ YOEExperience developing and deploying data-centric applications; cloud microservices; SQL databases; NiFi ETL; Python/Java; Git; Docker; CI/CD; AWS and Terraform; web technologies (HTML/CSS/JS/Flask).

Amazon S3, Amazon RDS, Amazon EC2, MySQL, PostgreSQL, NiFi, Python, Java, Flask, Docker, Terraform, Git, Jenkins, Jira, Confluence, Anaconda, Bash, HTML5, CSS, JavaScript, SQL, PL/SQL

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Application Development Lead

Chantilly, Virginia, United States

OnsiteFull Time

Redhorse: Delivering data insights and technology solutions to government agencies.

5+ YOELead AWS-based app development; TS/SCI with polygraph; 5+ years programming; 6+ years with classified IC systems; AWS certification; experience with Sponsor systems, security and federal compliance.

AWS, Kubernetes, Terraform, Docker, AngularJS, JavaScript, Java, HTML, CSS, TMOD Archer, CI/CD

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Senior Lead Data Engineer (Enterprise Platform Technology) (Java, Python, Scala, AWS)

McLean or New York

$230k-$286k/yr OnsiteFull Time

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

6+ YOE6+ years in application development; 2+ years in big data; 1+ year cloud (AWS/Azure/Google).

Java, Python, Scala, AWS, Redshift, Snowflake, Hadoop, Kafka, Spark, MongoDB, Cassandra, Unix, Linux, SQL, NoSQL, Gurobi

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2mo

Sr. Software/Applications Developer (on-site)

Portsmouth, Virginia, United States

OnsiteFull Time

Ishpi Information Technologies: Provides cybersecurity and software engineering for defense and government sectors.

8+ YOESenior software/applications developer with 8+ years of experience; DoD clearance; CISSP or equivalent; skilled in Rails, Oracle, SQL, MySQL, .NET, Java; U.S. citizen.

Rails, Oracle, SQL, MySQL, .NET, Java

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Software Engineer (665381)

Baltimore, Maryland, United States

$34-$59/hr OnsiteFull Time

Johns Hopkins Health System: Provides clinical care, medical research, and health education services.

4+ YOEDevelop, maintain, and support enterprise applications; four years of experience; strong in Java/C#/Python/JavaScript/TypeScript; Bachelor’s degree in CS or related field.

Java, C#, Python, JavaScript, TypeScript

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1mo

Software Engineer

Arlington, Virginia, United States

HybridFull Time

IntraFi: Provides deposit placement and liquidity services to financial institutions.

5+ YOE5+ years experience with Java, AWS, Angular, and SQL; design, develop, and maintain customer-facing applications; familiarity with AI tools; bachelor's or master's in CS/engineering preferred; strong SDLC, Agile, and collaboration.

Java, AWS, Angular, SQL, Git, Bitbucket, Jira, Confluence, Jenkins, SonarQube, JUnit, GitHub Copilot, ChatGPT

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Software Engineer Full Stack & Application Development II (Full Time) – United States

San Jose or New York or Boston or Knoxville or Austin or Milpitas or Alpharetta or Raleigh (RTP) or Maynard or Fulton or Dallas or Atlanta or Hillsboro

HybridFull Time

CiscoNASDAQ: CSCO: Develops and sells networking hardware and cybersecurity software.

0+ YOEBackend in Python/C++/Java; frontend JS/TS; REST/GraphQL/gRPC; SQL/NoSQL; cloud familiarity (AWS/Azure/GCP).

Python, C++, Java, JavaScript, TypeScript, REST, GraphQL, gRPC, SQL, NoSQL, AWS, Azure, GCP, Docker, Kubernetes, Terraform, Ansible, CloudFormation, GitHub Actions, Jenkins, CircleCI, Grafana, Prometheus, Splunk, React, Angular, Vue

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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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Software Engineer (mobile)

Chantilly or McLean

HybridFull Time

M1 Technology: Developing mission-critical technology for the U.S. intelligence community.

Experience with Agile; development, maintenance, and testing of applications; enterprise SecDevOps tools (GitHub, Jenkins); independent testing throughout lifecycle; maintenance of existing infrastructure; development in Ruby, Java, JavaScript, TypeScript, HTML, C/Objective C, R, Python; ensure unit/integration/UAT testing and system changes; mobil...

GitHub, Jenkins, Ruby, Java, JavaScript, TypeScript, HTML, C, Objective C, R, Python, XCode, Swift, SwiftUI

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2mo

Application Development and Deployment Lead

Herndon, Virginia, United States

OnsiteFull Time

Lockheed MartinNYSE: LMT: Designs and builds advanced aerospace and defense systems.

6+ YOEBachelor's degree in Cloud Computing, Computer Science, Information Technology, Information Systems, or Cybersecurity with five years of programming; six years in IC system development; Agile, SecDevOps, AWS certification.

AWS, AngularJS, Java, JavaScript, HTML, CSS, Kubernetes, Terraform, Docker, Oracle, NoSQL, SQL, PowerBI, Tableau, Jira, Confluence, CI/CD

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Applications Developer (Full Stack Developer - Senior)

Herndon, Virginia, United States

OnsiteFull Time

Ardent Principles: Provides specialized technology and program management services to government agencies.

4+ YOESenior-level developer with active TS/SCI with Full Scope Polygraph; 4+ years web app experience; strong Python/Java/JS/C# OO skills; cloud and Linux experience;Bachelor's degree or 11 years experience without degree.

Angular, React, JavaScript, Python, Java, C#, Linux, AWS, Azure, Oracle Cloud, Docker, Podman, Jira, Confluence, GitHub

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2mo

Applications Programmer (Java)

College Park, Maryland, United States

OnsiteFull Time

ANGARAI: Professional management consulting firm specializing in enterprise transformation and oversight.

7+ YOEBachelor’s degree in Computer Science, Information Systems, Engineering, or related field; 7+ years Java EE enterprise app development; 5+ years with Eclipse, Git, Spring, Struts, JPA, Hibernate; 4+ years SQL (PostgreSQL/MySQL/Oracle); 4+ years Java integration with SQL/NoSQL/MongoDB; 2+ years REST APIs; strong n-tier/microservices; analytical/prob...

Eclipse IDE, Git, Java/J2EE, Spring, Struts, JPA, Hibernate, Angular, JavaScript, TypeScript, HTML, CSS3, JSP, Servlets, Web Services, REST APIs, PostgreSQL, MySQL, Oracle, NoSQL, MongoDB, Maven, ANT, Jenkins, ESB, JBoss Fuse, Veracode, AppScan, Fortify

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Lead Software Engineer - Advice Solutions

Owings Mills, Maryland, United States

$145k-$309k/yr HybridFull Time

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

8+ YOELead software engineer with 8+ years of Java and AWS experience; microservices, cloud applications, and Agile leadership.

Java, AWS, Spring Boot, Microservices, UNIX, GitLab, React

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2mo

Software Engineer Level 3

Fort Meade, Maryland, United States

$235k-$255k/yr OnsiteFull Time

Markon: Provides specialized management consulting and engineering for federal agencies.

20+ YOEActive TS/SCI with Poly, 20+ years in Java-based applications, RESTful services, Agile, Git/Atlassian, IntelliJ/Eclipse.

Java, RESTful, Git, Jira, Confluence, IntelliJ, Eclipse, Kotlin, MongoDB, Spring, Spring Boot, Python, Kubernetes, NiFi, RabbitMQ

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Software Engineer 2 (FST - 102)

Annapolis Junction, Maryland, United States

OnsiteFull Time

SageCor Solutions: Provides engineering services for the intelligence community.

14+ YOEActive TS/SCI with polygraph; 14+ years SWE experience; BS in CS or related; 4 years experience may substitute for degree; Java experience; GPU-accelerated applications.

Java, GPU-accelerated applications

1mo

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1mo

Senior Software Engineer

New York or Austin or Washington

$190k-$235k/yr HybridFull Time

Method Financial: Connects financial accounts and processes debt payments via API.

5+ YOE5+ years of full-time software engineering; expert in JS, Python, Java or equivalent; experience building scalable production applications; strong communication; ability to balance speed with quality; fintech interest.

JavaScript, Node.js, React, Python, Java

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1mo

Software Developer Applications

Washington, D.C. or Kansas City

$138k-$178k/yr HybridFull Time

iCallidus: Provides information technology and cybersecurity services to federal agencies.

3+ YOEBachelor's in CS/SE, 3+ years in federal/health IT; Java/C#/Python; HL7/FHIR; Cerner/EHRM experience preferred.

Java, C#, Python, HL7, FHIR, Cerner, Oracle Health

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Appian Developer - Sr

Silver Spring, Maryland, United States

$80k-$105k/yr OnsiteFull Time

DRT Strategies: Management and technology consulting for federal and commercial organizations

5+ YOE5+ years of Appian development; Java, Appian BPM, SQL, APIs, web services, integrations, plugins, SAIL; experience with government integrations; Agile; multiple applications; strong communication.

Appian, Java, SQL, APIs, Web Services, Integrations, Appian plugins, Appian SAIL

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376 - Principal Software Engineer

Fort Meade or Annapolis Junction

$216k-$241k/yr OnsiteFull Time

ARSIEM: Provides cybersecurity and software engineering to government agencies.

11+ YOETS/SCI with poly; US citizen; Bachelor's in CS or related field plus 11 years' experience; strong Java/Python; experience with enterprise cloud data systems and prototype applications for evaluation.

Java, Python, Docker, Kubernetes, Linux

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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

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2mo

Software Reverse Engineer: All Levels (Requires Secret Level Security Clearance or Higher at time of Application) - FUTURE NEED

Vienna, Virginia, United States

$43-$96/hr OnsiteFull Time

Cipher Tech Solutions: Develops software for digital forensics and malware analysis.

US citizen with Secret clearance or higher, Bachelor in CS/CE/EE/Math/Physics or within 12 months of graduation, read assembly (x86/x64), proficient in C/C++/Java/Python, comfortable with high and low level languages, willing to become 8570 Level II+ certified, strong communication and teamwork.

IDA Pro, MongoDB, Neo4j, Python, C, C++, Java, C#

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2mo

Technical Lead – Application Development

Suitland, Maryland, United States

RemoteFull Time

G2IT: Provides IT systems integration and engineering for federal agencies.

8+ YOELead Java/Angular projects; cloud migration to AWS; microservices; CI/CD; team leadership; 8+ years experience; US citizen; Public Trust clearance.

Java, Spring, Angular, Oracle, PostgreSQL, AWS, Docker, Kubernetes, EKS, Tomcat, CI/CD

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Senior Systems Engineer (HTOCU – Application Development & Data Linking Platforms)

Washington, District of Columbia, United States

OnsiteFull Time

Intellect Solutions: Provides IT systems engineering and cybersecurity for federal agencies.

0+ YOEHands-on senior systems engineer with full-stack development, data-linking, APIs, and secure government standards; Top Secret clearance required.

Python, Java, C#, SQL, APIs, Jira

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1mo

Cloud Engineer, Application Modernization, Google Public Sector

Reston or Austin or Boulder

$127k-$183k/yr OnsiteFull Time

GoogleNASDAQ: GOOGL: Provides online search, advertising, cloud computing, and consumer electronics.

3+ YOEBachelor's degree in Computer Science or equivalent; 3 years in system design or a programming language; 3 years in technical troubleshooting and partner/customer management.

Java, C++, Python, Google Cloud Platform

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Full-Stack Engineer

Reston, Virginia, United States

OnsiteFull Time

CapTech: Provides technology and management consulting services to large enterprises.

6+ YOE6+ years of experience designing and building applications on the Microsoft stack or Java; RESTful APIs with Swagger/OpenAPI; SQL Server and NoSQL databases; front-end with JavaScript/TypeScript, HTML/CSS and modern frameworks; AI tooling experience; strong communication and problem-solving skills.

Swagger/OpenAPI, REST APIs, SQL Server, NoSQL, Azure, AWS, GCP, JavaScript, TypeScript, HTML, CSS, Angular, React, Vue, Bootstrap, Git, AI tooling, Claude, CodeX, OpenClaude

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Senior Staff Software Engineer - Duck Creek

Washington, District of Columbia, United States

$128k-$191k/yr RemoteFull Time

The HartfordNYSE: HIG: Provides business and personal insurance, group benefits, and investments.

12+ YOEAdvanced degree in computer science or related discipline; 10–12 years of application development experience; cloud experience (AWS preferred); experience with DuckCreek products; strong API, REST/SOAP, and front-end tech; knowledge of SQL databases.

.NET, ASP.NET, C#, HTML, XML, Java, JavaScript, Angular, JSON, SQL, DuckCreek, DuckCreek on Demand Cloud, AWS, GitHub, Jenkins, Rally, SonarQube, SSIS, SSRS

3mo

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3mo

Product Security Engineer

New York City or Washington, D.C. or Boston

$175k-$210k/yr OnsiteFull Time

Gecko Robotics: Builds wall-climbing robots and AI software for infrastructure inspection.

6+ YOE6+ years in application security or related, strong cloud and software security skills, proficient with security tools, coding in Java/Python/C++, and cloud architectures.

Burp Suite, OWASP ZAP, Python, TypeScript, Java, C++, CloudFormation, Terraform, AWS, GCP, Azure

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Senior Applications Developer

Arlington, Virginia, United States

OnsiteFull Time

Bowhead: Provides diversified technical and professional services to federal government agencies.

8+ YOESenior-level software engineer for cloud-native DoD modernization with extensive leadership responsibilities.

C++, Java, Cloud, Terraform, CloudFormation, ARM templates, CI/CD, Docker, Kubernetes

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2mo

Intern (Application Development)

Reston, Virginia, United States

$19-$23/hr RemoteFull Time

American College of Radiology: Provides medical imaging accreditation and radiology professional standards.

Pursuing a degree in Computer Science, Software Engineering, Information Systems or related field; strong communication and technical writing; team collaboration; detail-oriented; able to work independently.

HTML, CSS, JavaScript, .NET, Python, C#, Java, Node.js, Okta, OAuth 2.0, OpenID Connect, Azure DevOps, Git, AWS, GitHub Copilot, Cursor

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2mo

Sr Applications Database Engineer/Applications System Administrator

Rockville, Maryland, United States

$90k-$110k/yr OnsiteFull Time

Chickasaw Nation Industries: Provides professional services and manufacturing for federal agencies

Senior AI/ML engineer with healthcare data expertise (HL7/FHIR), cloud (AWS), Python/R/Java, GenAI, LangChain; experience with NLP/CV and HIPAA compliance.

Python, R, Java, AWS, Docker, Kubernetes, PyTorch, TensorFlow, scikit-learn, HL7, FHIR, LangChain, VectorDBs, RAG

2mo

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2mo

Director, Software Implementation Teams Lead – Corporate Platform Application

Centreville or London or Columbia

HybridFull Time

S&P GlobalNYSE: SPGI: Provides financial ratings, benchmarks, and data for global markets.

7+ YOE2+ MgmtLead platform modernization, migration, and consolidation; manage engineering teams; ensure reliability and security of enterprise platforms.

Java, C#, Python, Go, TypeScript

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Software Tester - Clearance Required

Reston, Virginia, United States

HybridFull Time

Cydecor: Providing technology solutions and mission support to defense agencies.

8+ YOE8+ years manual testing; Selenium WebDriver with Java; Agile; test case development; data integrity; cross‑application data validation; UI testing; CI/CD (GitLab); DoD Top Secret clearance.

Selenium WebDriver, Java, GitLab, CI/CD, Test Management Tools

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2026 PhD Graduate - Senior Engineer-Analyst for ISR Scientific Applications

Laurel, Maryland, United States

$105k-$245k/yr OnsiteFull Time

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

Doctorate in engineering, applied math, CS, physics or related field; proficient in MATLAB, Python, C++, Java; Linux experience; strong communication and teamwork; ability to travel to government sites; eligibility for Top Secret/SCI clearance.

MATLAB, Python, C++, Java, Linux

1mo

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1mo

Senior Director, Software Engineering

Bethesda or United States

$151k-$248k/yr HybridFull Time

Marriott InternationalNASDAQ: MAR: Operates and franchises a global network of hotels and resorts.

10+ YOE5+ Mgmt10+ years of application development leadership; 5+ years with distributed architectures and SDLC; experiência with GraphQL, Node.js, Typescript, Java, NoSQL, Spring Boot, Kafka, Docker, Kubernetes, Cloud; Bachelor's degree or equivalent; multiple cloud platforms (AWS, Azure).

GraphQL, Node.js, TypeScript, Java, NoSQL, Spring Boot, Kafka, Docker, Kubernetes, Cloud

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Default - DO NOT USE - Software Architect

Herndon, Virginia, United States

HybridFull Time, Contract

CompQsoft: Provides IT consulting and software engineering for government agencies.

8+ YOEBachelor's degree and at least 8 years' experience in enterprise web applications; REST services; cloud; Java, SQL; Active Secret clearance.

Java, Spring MVC, Spring Boot, REST, Oracle, MySQL, PostgreSQL, CAST, HP Fortify, SonarQube

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Full Stack Software Engineering Technical Lead – CI/CD Platform

McLean, Virginia, United States

$149k-$223k/yr OnsiteFull Time

Freddie MacOTCQB: FMCC: Purchases and securitizes home mortgages for the secondary market.

8+ YOE8-10 years of application solution architecture experience; 8+ years with Java, Angular, Spring Boot; strong Python; AWS; CI/CD; REST APIs; Docker/Kubernetes; Bachelor's degree in CS or equivalent.

Java, Angular, Spring Boot, Python, FastAPI, Terraform, Helm, CloudFormation, AWS, S3, DynamoDB, RDS, Jenkins, Docker, Kubernetes, APIs, Microservices, Serverless, CI/CD