Christopher Hamilton Email & Phone Number

Roswell, Ga, Us

Chicago, Illinois, Us

Principal Software Engineer - Developing large scale, high volume, high performance cloud based applications for large financial enterprise using Agile/Scrum principles.Creating and enhancing Flink and Spring Boot applications built using RHEL 8 using Java 8/11/17 packaged into Podman images and deployed to Kubernetes

Boston, Ma, Us

Part of an agile scrum pod helping design and build Java8/Spring Boot 2 applications to assist investing group. Technologies include Java (8), Groovy, Spock, Kafka, Oracle, AWS, DynamoDB. Deployment using Jenkins for CI/CD.

Developing micro services using Java to support web and mobile applications. Spring 5.x, Spring Boot 2.x, Java 8, REST, JPA/MySql, AWS, React

Atlanta, Ga, Us

Develop AWS based micro-services using Java, Spring, Spring MVC, Spring Boot. Services support mobile app and other enterprise services (push notifications, wallboards, point-of-sale, survey results, etc). Using PostGreSQL in AWS RDS for backend using JPA and Spring's JDBC Template. Access to other µServices using Spring's REST template. Hystrix circuit-breakers on MVC and service calls. Swagger-ui to assist with API documentation.

Atlanta, Georgia, Us

Senior consulting member of a team tasked with implementing Home Depot's merchandising assortment scheduling and execution application.The application is deployed using Continuous Integration / Continuous Delivery methodology with the application artifacts deployed to production twice a week.Worked as a pair programming team member implementing Test Driven Development using Scrum methodologies and techniques. These include user story creation, backlog grooming, story estimation and implementation using test driven development.Provided support for user testing, and post deployment support for the application and microservices.Implemented microservice endpoints deployed in Home Depot's internally developed Tomcat Grid as well as Pivotal's Cloud Foundry. New endpoints are implemented using Spring MVC running within a Spring Boot application.Maintained legacy application implementations in the code mix that are SOA oriented and implemented in a more monolithic architecture using Jersey. Part of the team's responsibilities included the gradual migration from the monolithic legacy applications implemented using Jersey to microservices implemented using Spring Boot, Spring MVC and Spring Batch and deployed in one of Home Depot's private instances of Pivotal's Cloud Foundry.Implemented unit and integration tests using JUnit 4, Mockito and PowerMock.Implemented end-to-end tests using Postman and Newman.Mentored and assisted other team members with various technical issues including Java, Groovy, OSx and network related issues.Worked with testers to resolve environmental issues and clear blockers to successful project implementation.

Dallas, Tx, Us

Senior consulting member of a team tasked with updating AT&T's near real time messaging web service. This is a JSON based RESTful web service used by the AT&T messaging web application that provides integrated SMS, MMS and email functionality for AT&T customers and third parties.Implemented Apache Camel routes using Camel-Spring XML and Camel-Spring processor beans. These are the core techniques for building web service functionality with Apache Camel. Routes and processor beans are used to implement integration with other Enterprise systems.Implemented Spring bean used for proper shutdown of the custom Jetty based web container used for this application.Implemented changes to the build and deploy process to properly support the new messages applications. This includes changes to the Maven pom and Ant build scripts as well as scripts used for deployment into RHEL.Implemented JMeter tests to test routes and beans implementing web services within the near real time messaging serviceWrote BASH scripts on both RHEL and OSX for various development life cycle tasks such as application startup, log file backups and cron jobs to clean up old files that are no longer important.Mentored and assisted other team members with various technical issues including Java, Groovy, Maven, Ant, Application Server, Linux and network related issues.Worked with testers to resolve environmental issues and clear blockers to successful project implementationTechnologies: Java, Groovy, Apache Camel, J2EE, JSON, Eclipse, Spring, XML, Web Services, SOAP, HTTP, HTTPS, JMeter, Maven, Ant, Nexus(repository), GIT, Subversion, Jetty, Apache Web Server, Firebug, Fidler2, Charles (diagnostic proxy), Oracle, BASH, Linux, OSX

Basking Ridge, Nj, Us

Senior consulting member and technical lead of a team tasked with replacing an existing Java Swing based client/server application with a Web based Spring MVC implementation. The web application uses REST and a single page architecture (SPA) and is implemented with Java, Groovy, myBatis, jQuery, Bootstrap, Datatables, AJAX and JSON. Implemented SOAP and non-SOAP web services that communicate with various backend enterprise systems using Apache Camel and EIP. The application is implemented with Java, Groovy, myBatis and the EclipseLink MOXy implementation of JAXB.Mentored and assisted other team members with various technical issues including Javascript, CSS, Java, JSP and Server and network related issues.Implemented a content based message router for incoming XML web service requests. Apache Camel based application enforces a limited number of content rules and routes content between multiple application servers based on XML payload. Assisted with the configuration of the WebSphere infrastructure to support new features and proxy other teams web applications using our secure servers. Tasks included recommending server configurations and writing rewrite rules to support the applications.Administered the group's Nexus repository server.Set up Jenkins build jobs to provide continuous automated builds.Automated installation of web applications on WebSphere application servers using Jenkins to facilitate simple one-click deployments for development and test systems.

Kista, Stockholm, Se

Review High Level Design Documents from Systems Architects for accuracy and consistency. Use HLD's to establish Level of Effort estimates for Professional Services development.Trained Ericsson customer's development staff on how to develop custom features within the Ericsson (multimedia) Content Management System (CMS).Identify issues with custom CORBA Content Store application developed by the Ericsson Professional Services team and used to provision multimedia assets in a Content Distribution Network. Problems were associated with sending large (multi gigabyte) content files over the internet using FTP. Issues encountered included the firewall closing the idle control channel after an hour causing the transfer to fail. Abstracted the use of FTP to an interface to allow the use of an alternate FTP client package (moved from ftp4j to Apache Commons Net package). Implemented code to overcome this issue and advised local technical team on configuration.Implemented a SOAP proxy to resolve an issue between the producer and consumer of the service. The producer of the service had a bug that prevented it from returning a proper file name for a specific type of asset. The proxy when inserted between the producer and consumer corrects invalid data from the producer and fixes it in the returned XML.Created work flow templates for processing multimedia content and metadata within the Ericsson CMS application using the Ericsson WatchPoint Studio (Eclipse plugin).Document custom components developed by the Ericsson Professional Services staff for use by Ericsson customers.

Windsor, Berkshire, Gb

Tech lead on web based front end development for IHG's loyalty program web site (http://www.priorityclub.com). Specific area we are working on is account management. The current web site will eventually be replaced.Technologies used are primarily GWT/MVP4G running on a Resin J2EE web server. Back end services are all provided to us by an internally developed service API that is loaded and initialized using a combination of technologies including (but not limited to) Spring and Hibernate.

Technologies Java, J2EE, GWT, Hibernate, RMI, XML/XSLT, JDBC, Javascript, Ant, Oracle 10g, PL/SQL, JBoss, Eclipse, Subversion (Source Control), Apache, BASH, vi, HP-UX 11.x, Solaris 8, MS-Windows, Cygwin; Duties Developed application code for the company's web screening web site. The site uses the Google Web Toolkit for the user interface. Developed custom masking technology to allow masking of personal information in different ways based on configuration information stored in the database and retrieved using the Java EE3 JPA/Hibernate persistence layer.Added enhancements to screening tool to allow users to defer automatic the re-screening of candidates based on time frames specified in the configuration stored in the database.Changed style sheet configuration to correct styling issues with the user interface.

Basking Ridge, Nj, Us

Java, J2EE, JSP, Seam, Hibernate, Spring, Struts, Tiles, Stripes, RMI, XML/XSLT, JDBC, Javascript, Ant, Oracle 10g, 9i, 8i, PL/SQL, Stored Procedures, Packages, Triggers, SQL Loader, Perl, JBoss, Apache Tomcat Servers, Korn, Borne, BASH, vi, HP-UX 11.x, Solaris 8, Windows, Cygwin, Eclipse, JBuilder, Continuus (Source Control)Implemented Hibernate based architecture for web application used to configure and manage wireless switchesDeveloped web application components used to manage configuration information for the wireless network.Directly involved in meetings with end users to help establish use cases and design business process manangement solutions.Worked on team implementing web based billing and provisioning system based on JBoss Seam and Hibernate.

Technologies Java, J2EE, JSP, Servlets, JavaScript, Hibernate, Spring, IBM RAD IDE, IBM Websphere Application Server, Vitria BusinessWare business process management, Edifecs XEngine for EDI/HIPAA , Solaris, Cygwin, Windows, Accurev SCM, Oracle 10g database; Duties Developed new and enhanced existing application functionality for Availity's Web Portal. Portal uses custom JavaScript, JSP, Servlets. Hibernate and POJO's are used for ORM and data access, Spring is used for IOC configuration. The web portal is deployed using IBM Websphere application servers. Development is done using IBM's RAD IDE. Oracle 10G is used to manage and store, transactional and configuration data.Developed and maintained application modules for Availity's EDI based health care claims processing system. Introduced Spring IOC to increase application flexibility and replace the need for hard-coded class based application functions. Oracle 10G is used to manage and store, transactional and configuration data.Developed shell and PERL scripts to automate and streamline day to day maintenance functions as required.

Dalton, Ga, Us

Technologies Java, NetBeans, Swing, JDBC, MS SQL Server, Hibernate, Windows Duties Participated in design and development of Swing based sales force automation and order processing application. The application is to be deployed to the sales force on tablet PC's using a local MS SQL Server. The Hibernate ORM is used for Object Relational Mapping between the application and the database. Updates to the local data base are facilitated using SQL Server database synchronization. Typical MVC application architecture was used in development facilitated by Sun Microsystems's Net Beans IDE.

Technologies C, Perl, Ksh, Java, AIX Duties Acquired and built latest versions of Apache 2.2 web server, mod_perl module, mod_jk module, mod_php module, PERL interpreter, PHP interpreter and OpenSSL library on AIX 5.2 using the IBM Xlc compiler. Integrated binaries with Tomcat 5.5 Java web server.

Technologies Java, J2EE, Spring, RMI, JSP, Struts, Eclipse, Maven, XML/XSLT, JDBC, jUnit, MockStruts, eMeta - eRights, Sun One App Server, Apache/Tomcat Server, Korn, Borne and BASH, Linux, Windows, Cygwin, CVS and Subversion; Duties Maintained eCommerce web applications. Developed unit tests for business objects using jUnit and Struts actions using MockStruts. Maintained maven project files.

Basking Ridge, Nj, Us

Technologies Java, J2EE, JSP, Struts, Tiles, Javascript, Ant, XML/XSLT, JDBC, Oracle 10g, 9i, 8i, PL/SQL, Stored Procedures, Packages, Triggers, SQL Loader, Perl, PHP, Sun One and Apache/Tomcat Servers, Korn, Borne, BASH, vi, HP-UX, Solaris, Windows, Cygwin, Eclipse, JBuilder, Continuus; Duties Designed and developed Pattern based, Web applications using Struts, Tiles, Tomcat, SunOne and Oracle 10g.Multi-threaded, event-driven communications applications to collect and update information on telecommunication switching equipment made by Lucent, Nortel and others.Secure web site using JSP, Servlets, Tomcat and Oracle.Application to collect data from a vendor's telnet screens and store the captured data in an Oracle database.Back end service components in Java, and stored procedures in PL/SQL.Converted build and deployment environments from make to Ant. Performed application performance evaluations and tuning, on Oracle queries, views and procedures. Mentored and assisted other team members in their design and development efforts. Migrated web based application from Java Web Server to Tomcat web server.

Technologies Visual C++, Visual J++, PERL, Solaris, Windows, ODBC, MS SQL Server, Apache/Tomcat Server, Visual Source Safe; Duties Defined architecture and led a team in the specification, design and development of a multi-threaded, XML transaction processing application used to supply credit reporting services to a consumer web site. Job duties included: architecture definition, delegation of development duties and tracking progress and results. Designed and developed multi-threaded, Java based, real-time, fault tolerant FTP server application. Designed and developed Windows based remote system management application for monitoring running applications, restarting applications and rebooting systems. Member of a team tasked to define consistent source code management policies and procedures.

Technologies Visual C++, HTML, CGI, Windows, Solaris, ODBC, Sybase, MS-SQL, Netscape Enterprise Server, Visual Source Safe,; Duties Designed and developed mid-tier services for an Internet based video reservation system, a trouble ticket tracking application and other projects using Visual C++, ODBC and MS-SQL Server. Diagnosed and fixed bugs in applications and libraries identifying areas that were not thread safe.

Atlanta, Ga, Us

Technologies C, C++, Java, Visual Basic, ASP, HTML, PERL, AIX, Front Page, Oracle, COM / DCOM / ADO / ODBC, TCP/IP, PVCS (Change Control) Duties Subject matter expert on the use of C++. Mentored and supported application developers in the use of, COM/DCOM, ODBC, ActiveX controls and Windows NT. Evaluated Java and various Java development tools for inclusion in Coca-Cola's standardized software architecture.

Technologies C, C++, Informix, Borne/Korn Shell, Tuxedo, HP UX, TCP/IP, Telnet, SNA; Duties Led development team tasked with development and implementation of custom software for Internet banking. Duties included, project definition, scheduling and management, system architecture, data modeling and application design and development. Developed applications using C++, embedded SQL and Tuxedo to facilitate messaging between web based and legacy systems.

Technologies Visual C++, MFC, ActiveX, PERL, DB2, Windows, AIX, TCP/IP Duties Design, development and integration of application software in the Windows 95 and NT environments using Visual C++, MFC and ActiveX controls for Internet communications for Worldbook 98 Multimedia Encyclopedia.

Technologies C, C++, Java, Korn, Borne and C shells, Solaris, UnixWare, SunNet Manager, ISDN, TCP/IP; Duties Project lead of a team responsible for the design of an SNMP based network management system. Designed and developed object oriented system management and control software for IVR application platform. Integrated third party computer telephony hardware. Selected products, designed and integrated hardware platforms for a PC based switch product for cellular communications. Provided system administration support for Solaris, SunOS and UnixWare systems used in the project.

Technologies C, PL/1, COBOL, Stratus VOS, AIX, TCP/IP, SNA, 3270, Duties Professional services developer responsible for project estimation and software design, development, and installation.

Technologies C, COBOL, 68K Assembler, Intel x86 Assembler, Stratus VOS, OS/2, Windows, SunOS 4.1.x, DEC VMS, AMX Embedded OS, TCP/IP; Duties Designed client/server based lottery ticket validation system. Designed and developed asynchronous, multi-layered communication protocol to support application. Developed embedded system device drivers for POS terminal.

Technologies C, x86 Assembler, OS/2, DOS, VM/CMS, PVCS; Duties Developed OS/2 HLLAPI based automated file transfer system to send and receive marketing data between PROFS and PC using SNA over token ring. Tuned, stabilized, enhanced and supported a large multi-overlay DOS based front end for this system.

Technologies C, x86 Assembler, DOS, OS/2, VM/CMS, TCP/IP; Duties Managed a group of system support engineers responsible for quality assurance and beta testing, and third level customer support. Developed and implemented detailed quality assurance tests. Designed and developed communications and communications support software for the PC. Designed PC back plane hardware for testing of PC option cards.