Sean Campbell
West Point
Summary
Accomplished Technical Lead skilled in Java, Spring Boot, and microservices architecture. Expertise in mentoring developers, optimizing backend processes, and delivering high-performance applications, leveraging a robust technical environment to drive innovation and enhance operational efficiency.
Overview
24
24
years of professional experience
Work History
Technical Lead
Centene Corp
01.2023 - 06.2024
- Designed and supported Centevent management platform, enabling schema creation, access control, and topic management over Kafka-based architecture handling 35 million claim events daily.
- Managed AWS EKS hosting for APIs and S3 for schema storage; developed and maintained Lambdas for health check and notification services.
- Developed REST APIs and related services using Java and Spring Boot.
- Migrated front-end self-service portal from Vue 2 to Vue 3, utilizing Node.js and Vue.js technologies.
- Mentored junior developers through code reviews and participation in technical forums.
- Optimized backend processes with microservices architecture, leveraging Kafka for event-driven communication.
- Enhanced performance of applications by implementing efficient coding practices and conducting thorough testing.
- Utilized technical environment: Java, Spring Boot, Micronaut, Kafka, MongoDB, Rancher/Kubernetes, Vue.js, Node.js, AWS (EKS, EC2, S3, Lambda).
Overall Technical Lead
TIAA
08.2015 - 01.2023
- Led multiple agile teams with a mix of offshore and onshore resources, involving active development and assisting Tech Leads across teams to maintain consistent designs and practices related to Java, Spring, and other technologies.
- Moved a large system to a microservice-oriented architecture, designed REST APIs, and employed event-driven designs using Rabbit, Kafka, and AWS Kinesis.
- Managed deployment of various Java-based applications into RedHat Openshift cloud and hosted applications using EC2 and DynamoDB as well as on-prem services.
- Technical Environment: Java/Spring, Mongo, Angular, Kafka, AWS (EC2, DynamoDB, Kinesis)
Technical Lead
Bylight Professional Services
09.2014 - 08.2015
- Performed initial design and analysis in a consulting role for a rewrite of Java/Spring-based Health Assessment Survey portal for the Dept of Veterans Affairs.
- Implemented development pipeline including source control, continuous integration, and automated testing.
- Developed a strategy using Bootstrap to implement a responsive web design for the HLA portal.
- Technical Environment: Java/JEE, Spring, Spring-WS, Jenkins, Bootstrap
Senior Java Developer
Ippon USA
07.2014 - 09.2014
- Set up Jenkins, Git, and Tomcat servers on Linux for a new Java development shop at Allianz Global.
- Worked with internal Allianz architect to help create initial architectural design for the rewrite of a website using Java and Spring.
- Developed initial Java-based data models and REST service layer to proxy existing .NET web services.
- Technical Environment: Java/JEE, Spring
Technical Lead
CapitalOne
01.2014 - 07.2014
- Led an agile feature team in developing Capital One's new card online servicing platform for Project Tetris, following behavioral-driven design guidelines.
- Technical Environment: Java/JEE, Spring, AngularJS
Senior Software Engineer
Atlantic Resource Group/HDL
01.2013 - 01.2014
- Developed various Grails-based solutions for Health Diagnostics Laboratory, including a content management system and web-delivered mobile applications for the marketing force.
- Technical Environment: Groovy/Grails, Java/JEE, CentOS, Alfresco, Apache Chemistry, JQueryMobile
Senior Consultant
TekSystems/CACI
06.2012 - 01.2013
- Implemented and maintained Weblogic-based portals for the Dept of Veterans Affairs, including a full content management system using Alfresco and Apache Chemistry.
- Technical Environment: Weblogic portal, Alfresco CMS, Spring WebMVC, Freemarker, Groovy
Senior Software Engineer
VA Workers Compensation Commission
10.2010 - 06.2012
- Overhauled existing build system using Maven, Ant, and Jenkins, integrating build systems with JIRA.
- Technical Environment: JBoss AS, JBoss Portal/Portlets, Drools, JBpm, JMS, Hibernate, Spring WebMVC and WebFlow, ExtJS, Eclipse
Software Developer II
SNL Financial/Vaco
01.2010 - 10.2010
- Supported legacy application YMerge and snl.com, an ASP.NET-based web application written in C#.
- Technical Environment: JRun App Server, Macromedia Flash MX 2004, Java, XSLT, Eclipse, IIS, Visual Studios 2008, ASP.NET/C#, Silverlight
Senior Consultant
Booz Allen Hamilton
02.2009 - 12.2009
- Supported Digital Productions application for NGIC, including initial design work for Source Capture and resolving issues for Imagery Publishing Application (IPA).
- Technical Environment: Java, Hibernate, Spring, Alfresco, Weblogic, XSLT
Programmer/Analyst
Land America
03.2008 - 02.2009
- Worked on a large Java-based web application called Genesis, using Struts/Webmacro, Hibernate, and Peers for persistence.
- Technical Environment: JBoss App Server on Windows platform, Java (Struts, Peers, Webmacro, JMS), Starteam, Eclipse, Maven/Ant, XSLT
Sr Software Engineer
Northrop Grumman
05.2005 - 10.2008
- Developed a multi-agency web application for the Foreign Materiel Management System (FORMMS) using Spring WebMVC, Hibernate, and DWR for Ajax.
- Technical Environment: Spring WebMVC, Hibernate, DWR, JSP/Dojo, Acegi, Lucene, JDBC
Software Engineer
Science Applications International Corp
10.2004 - 05.2005
Senior Software Engineer
Presearch Inc.
01.2000 - 10.2004
- Solved problems at all levels of the Pathfinder software suite, from database design to GUI layers, and developed several SOAP-based wrappers for legacy systems.
- Technical Environment: MySQL, Oracle, Swing, Applet, PHP, J2EE, JBoss, JMX, Tomcat, Axis
Skills
- Programming languages: Java, Groovy, Go, JavaScript, TypeScript
- Frameworks: Spring, AngularJS, Selenium
- Containerization: Docker
- Container platforms: OpenShift, Kubernetes, Rancher
- Build automation: Gradle, Maven
- Version control
- API specifications: OpenAPI, Swagger
- Messaging systems: Kafka, RabbitMQ
- Testing tools: JUnit, Mockito
- Data mapping: MapStruct, Lombok
- Automation servers: Jenkins
- AI technologies: ChatGPT, OpenAI, Ollama
- Development environments: Eclipse, IntelliJ
- Project management tools: Jira, Bitbucket
- CI/CD tools
Education And Certifications
- Sun Certified Java Programmer
- MongoDB for Java Development certified
- AWS Certified Developer - Associate
Timeline
Technical Lead
Centene Corp
01.2023 - 06.2024
Overall Technical Lead
TIAA
08.2015 - 01.2023
Technical Lead
Bylight Professional Services
09.2014 - 08.2015
Senior Java Developer
Ippon USA
07.2014 - 09.2014
Technical Lead
CapitalOne
01.2014 - 07.2014
Senior Software Engineer
Atlantic Resource Group/HDL
01.2013 - 01.2014
Senior Consultant
TekSystems/CACI
06.2012 - 01.2013
Senior Software Engineer
VA Workers Compensation Commission
10.2010 - 06.2012
Software Developer II
SNL Financial/Vaco
01.2010 - 10.2010
Senior Consultant
Booz Allen Hamilton
02.2009 - 12.2009
Programmer/Analyst
Land America
03.2008 - 02.2009
Sr Software Engineer
Northrop Grumman
05.2005 - 10.2008
Software Engineer
Science Applications International Corp
10.2004 - 05.2005
Senior Software Engineer
Presearch Inc.
01.2000 - 10.2004