115 api java developer jobs at 61 companies in Hanover, PA
3w
Save
Mark Applied
Hide
API Developer (Senior)
Baltimore, Maryland, United States
OnsiteFull Time
3+ YOEBachelor's in CS or related field (or 5 years' equivalent),3+ years computer experience,1+ year web/app development experience; knowledge of HTML,CGI,PERL,Javascript,Java,cloud and Salesforce.
HTML, CGI, PERL, Javascript, Java, Salesforce
5d
Save
Mark Applied
Hide
Senior Java Developer w/ Angular
Woodlawn, Maryland, United States
$134k-$175k/yr OnsiteFull Time
10+ YOE10+ years with Java, Spring Boot, Angular, and React; extensive JEE and UI development; AWS/PostgreSQL cloud deployment; microservices, REST APIs, DevOps, testing, Agile, and technical leadership. Degree plus experience or 13+ years without degree.
Java, Angular, Spring Boot, REST APIs, Twelve-Factor App, microservices, SOAP, JAX-WS, Apache Axis, Web Services Description Language (WSDL), AngularJS, JavaScript, JSP, HTML, CSS, XML, AJAX, jQuery, Jenkins, Git, Bitbucket, Jira, Nexus, Maven, SonarQube, Fortify, UrbanCode Deploy, AWS, PostgreSQL, Azure, Google Cloud, containerization, JUnit, Mockito, PowerMock, Test Driven Development (TDD), Behavior-Driven Development (BDD), Cucumber, React, JEE, JAXP, JAXB, AXIS, JERSEY, JSON, CXF, LTPA, OAuth2/JWT, Struts, Spring Framework, Spring JDBC, JPA, Hibernate, DB2, Tomcat, WebSphere, Kafka, Artificial Intelligence (AI)
2mo
Save
Mark Applied
Hide
Java Software Engineer Level 5
Aurora or Morrisville or Linthicum Heights
$177k-$266k/yr OnsiteFull Time
12+ YOETop Secret/SCI clearance required; Bachelor’s degree in science with 12+ years (or Master's with 10+ years or equivalent experience); 5+ years Java development; RESTful APIs, microservices, Git, Agile, OOP, and version control experience.
Java, RESTful APIs, microservices, Git, GitHub, GitLab, Bitbucket, Agile, Linux, CI/CD, Docker, cloud platforms
2mo
Save
Mark Applied
Hide
Java Software Engineer Level 5
Aurora or Morrisville or Linthicum
$177k-$266k/yr OnsiteFull Time
12+ YOEActive Top-Secret/SCI clearance required; 12+ years software development experience (alternatively experience/degree combinations), 5+ years Java, RESTful APIs/microservices, Git workflows, Agile experience, strong OOP and SOLID skills.
Java, RESTful APIs, Git, GitHub, GitLab, Bitbucket, Linux, CI/CD, Docker
3mo
Save
Mark Applied
Hide
Cloud Java /GUI Developer
Annapolis Junction, Maryland, United States
OnsiteFull Time
8+ YOEBachelor's degree in computer engineering or related field; 8 years software engineering; 3+ years in SIGINT/IA/IT; TS/SCI with poly; GUI, Java, Python; cloud experience (AWS).
Java, Python, AWS, Linux, APIs, GUI development
2mo
Save
Mark Applied
Hide
Full Stack Java Software Engineer
Annapolis Junction, Maryland, United States
OnsiteFull Time
Tiber Technologies: Providing specialized engineering and security services for federal missions.
Strong Java development with Spring Boot, RESTful APIs, MongoDB, automated testing; US citizenship and active clearance with polygraph required; bachelor\u0002s degree in CS/Engineering; familiarity with full-stack, Kafka, Linux, and CI/CD preferred.
Java, Spring Boot, MongoDB, JavaScript, Vue.js, Kafka, Linux, CI/CD
1w
Save
Mark Applied
Hide
Lead Software Engineer - Java, Microservices, MuleSoft & API Development (Remote)
Baltimore, Maryland, United States
$115k-$229k/yr RemoteFull Time
8+ YOEBachelor's degree in a technical discipline or four additional years' relevant experience, plus 8+ years in software design and development, enterprise systems, technical leadership, and Agile delivery.
Java, Spring Framework, Spring Boot, Spring Cloud, Spring MVC, Spring Integration, Spring Batch, RESTful API, SOAP, Open API, Swagger, MuleSoft Anypoint Platform, DataWeave, Microsoft API Management (APIM), Apigee, OAuth 2.0, OpenID Connect, Microsoft Azure, AWS, Kubernetes, AKS, Docker, Oracle, PostgreSQL, SQL Server, MongoDB, Cassandra, Apache Kafka, Confluent Platform, Jenkins, Microsoft Azure DevOps, GitHub Actions, Maven, SonarQube, Artifactory, Postman, Newman, Rest Assured, TestNG, Cucumber, Splunk, ELK Stack, Kibana, Azure Monitor
1w
Save
Mark Applied
Hide
Web Application Developer
Harrisburg, Pennsylvania, United States
OnsiteFull Time
Proficiency in Java and Java EE, Java web applications, REST APIs, XML, JSON, SQL, cloud integrations, web design, and SDLC; experience with Claude or similar AI development tools required.
Java, Java EE, Claude, REST API, XML, JSON, SQL, MySQL, DB2, Snowflake, SDLC
2mo
Save
Mark Applied
Hide
Senior React Developer
Annapolis Junction or Columbia
$200k-$275k/yr HybridFull Time
12+ YOESenior full-stack developer proficient in React and Java/Spring Boot; experience migrating legacy systems; ability to work with Camunda and Pega workflows; strong REST APIs and Oracle/SQL skills.
React, Java, Spring Boot, Camunda, Pega, Oracle, SQL, REST API
2w
Save
Mark Applied
Hide
Software Engineer 3 - Linux/Bash/Python/Java/IaC/Docker/CI/CD
Annapolis Junction, Maryland, United States
$130k-$270k/yr OnsiteFull Time
5+ YOEMaster's degree plus 5 years, bachelor's plus 7 years, or 9 years of software engineering experience. Requires TS/SCI clearance with favorable polygraph, Linux, Bash/Python, Java, Delinea, IaC, containers, and CI/CD expertise.
Linux, Linux CLI, Bash, Python, Java, RHEL, CentOS, Rocky, Ubuntu, Delinea, Secret Server, Privilege Manager, DevOps Secrets Vault, Ansible, SaltStack, Docker, Podman, Jira, Confluence, CI/CD, RESTful services, Infrastructure as Code (IaC), API
2mo
Save
Mark Applied
Hide
SAP Convergent Charging (CC) Developer
Middletown, Pennsylvania, United States
OnsiteContract
7+ YOE7+ years SAP development experience with 3+ years in SAP Convergent Charging, strong billing/charging and integration skills, Java/SQL/API experience, SAP BRIM/S4HANA knowledge, and relevant SAP/cloud certifications or equivalent degree.
SAP BRIM, Microsoft Dynamics CE, SAP Convergent Charging (CC), SAP Convergent Invoicing (CI), SAP Subscription Order Management (SOM), SAP FI-CA, SAP S/4HANA, SAP BTP, SAP Integration Suite, SAP HANA, ABAP, Java, SQL, APIs, CI/CD
1mo
Save
Mark Applied
Hide
Software Engineer
Columbia or Linthicum Heights
$180k-$200k/yr OnsiteFull Time
Experience developing Java-based software, enterprise APIs, RESTful services, microservices and OOP; Linux and config management (Git,Nexus,Maven); US citizenship eligible for clearance; experience with AI coding agents preferred.
Java, Claude Code, Google's Antigravity, Gemini, NiFi, Kafka, AWS, Microsoft Azure, Linux, Git, Nexus, Maven, Elasticsearch, Postgres, Trino, Python, Flask, Vue, Docker, CICD, JIRA, Confluence, Github Enterprise
1mo
Save
Mark Applied
Hide
Software Engineer
Annapolis Junction, Maryland, United States
$96-$108/hr OnsiteFull Time
14+ YOEJava software engineering experience, Spring Boot, Linux, web services and APIs, SQL, Git, Docker, and TS/SCI clearance with polygraph. Requires HS/GED plus 18+ years or bachelor's degree plus 14+ years.
Java, Spring Boot, Linux, Git, Docker, JavaScript, ReactJS, Apache Kafka, Apache NiFi, Docker Compose, Maven, Jira, Confluence, SQL, API
3w
Save
Mark Applied
Hide
Lead Software Engineer (TS/SCI with Polygraph required)
Annapolis Junction, Maryland, United States
$180k-$225k/yr HybridFull Time
8+ YOEBachelor's degree in computer science or equivalent experience; 8+ years Java development and modern development practices; REST APIs, Agile, and TS/SCI with polygraph clearance required.
Amazon Web Services (AWS), Java, Python, ReactJS, Kubernetes, Docker, REST APIs, Agile, Service Oriented Architecture (SOA)
4w
Save
Mark Applied
Hide
Software Engineer
Hunt Valley, Maryland, United States
$86k-$115k/yr HybridFull Time
5+ YOEBachelor's degree in computer science or related field, 5+ years software engineering experience, API and full-stack development experience, familiarity with Agile, testing, and cloud paradigms.
.NET (C#), SQL, HTML, CSS, JavaScript, NodeJS, Angular, React, Vue, Azure DevOps, Git, MS SQL Server, Typescript, REST API, HTTP, Java
2w
Save
Mark Applied
Hide
Application Developer (TS/SCI + Poly)
Fort Meade, Maryland, United States
$127k-$147k/yr OnsiteFull Time
5+ YOEBachelor's degree and 5+ years of relevant experience or equivalent; secure end-to-end application development, cloud environments, Python, PySpark, Java, JavaScript, REST APIs, CI/CD, Git, Elasticsearch, and active TS/SCI with polygraph.
Python, PySpark, Java, JavaScript, RESTful API, CI/CD, Git, Elasticsearch, XKS, Mission Data Repositories, GMLABBENCH, PRESSUREWAVE, Docker, Kubernetes
2mo
Save
Mark Applied
Hide
Senior Software Engineer
Annapolis Junction, Maryland, United States
$185k-$215k/yr OnsiteFull Time
14+ YOE14 years software engineering experience; Bachelor's in computer science (or +4 yrs exp); active TS/SCI with Full Scope Polygraph; experience with Java, Linux CLI, Git, Confluence, Docker, web APIs; strong design/debug skills.
Git, Kira, Confluence, Atlassian Products, Linux Command Line, Java, Docker, APIs, Spring Boot, JavaScript, ReactJS, Apache Kafka, Apache Nifi, Docker Compose, Maven, SQL
3w
Save
Mark Applied
Hide
Senior Integration Software Engineer
Annapolis Junction, Maryland, United States
$190k-$240k/yr OnsiteFull Time
12+ YOETS/SCI with polygraph, bachelor\u0002s degree and 12+ years software engineering experience, Java and integration experience, REST/SOAP APIs, Docker, Linux, cloud and enterprise application sustainment.
Java, AWS, MySQL, ASP.Net, Linux, SpringBoot, Docker, Angular, Git, GitLab, Atlassian Tool Suite, Oracle, SQL Server, Kubernetes, REST, SOAP, APIs
1mo
Save
Mark Applied
Hide
Software Engineer Level 1
Fort Meade, Maryland, United States
$160k-$180k/yr OnsiteFull Time
7+ YOEActive TS/SCI with polygraph, Bachelor’s degree, 7+ years software engineering experience, Java and backend development, RESTful APIs, Agile, Git, Jira, Confluence, IntelliJ or Eclipse, strong troubleshooting and communication skills.
Java, Git, Jira, Confluence, IntelliJ IDEA, Eclipse IDE
1mo
Save
Mark Applied
Hide
Full Stack Software Engineer, Strategic Systems
Laurel, Maryland, United States
$100k-$245k/yr OnsiteFull Time
5+ YOEBachelor's in CS or related, 5+ years developing in C#, Python, JavaScript/TypeScript, C++, and/or Java; front- and back-end web development; web API and database integration; US citizenship and ability to obtain Interim Secret/Top Secret clearance.
C#, Python, JavaScript, TypeScript, C++, Java, GitLab, Jira, VS Code, ASP.NET Core, Entity Framework Core, SQL Server