Tiffany Timbric (tiffanytimbric@gmail.com)
Senior Enterprise Backend Software Developer / Architect
I am a senior software developer having designed and authored mission-critical systems at large companies across financial, transportation, telecommunications, e-commerce, defense, and technology domains. During and before college I developed software for multiple companies, my father's among them, and Sun Microsystems, Inc. as an intern. My foundation in Java matured at Sun Microsystems, Inc. where I provided technical expertise to their clients regarding unified process methodology, system architecture, and application design and implementation.
Recent engagements were Amtrak, PayPal, Tendril, JDA Software Group, among others at which I assisted their teams in designing, planning, and developing primary applications.
Through successive engagements at large enterprises I assisted them in increasing their business return on software development by identifying technical risks early, authoring prototypes rapidly, iteratively developing features, and frequently deploying to production, therein developing software in small, incremental, and plannable steps.
Below listed are more details from some of my more interesting engagements.
Finite State Machine: https://github.com/chadwickboggs/fsm
Cryptography: https://github.com/chadwickboggs/crypto
Primary designer and author of their AWS rewrite of their entire outbound email system for customer purchases including trip information and sales receipts. Sales receipts and trip information listings for all Amtrak trips, with add-ons, and purchase types, across all Amtrak stations, passenger classes, and third-party carriers.
Features included the processing scale of all Amtrak customer purchases with Business Metric and System Metric Observability data publishing, fault and error alerting, meaningful logging at specified levels (trace, debug, info, warn, error) with security and PII protection.
Technolgies included AWS (Cloud Formation, Lambda, Event Bridge, SQS, S3), Immutables.org Java Beans, REST, JSON + FasterXML Jackson, HttpClient, environment specific configuration, environment variables, Java 11, Maven.
Lead team authoring software connecting hospital ERP and medical equipment purchasing systems to GHX.
Lead design sessions and reviewed all code changes and new features.
Identified and corrected design flaws.
Identified and corrected scalability bugs: connection pools, retries, AWS AZ failovers.
Used AWS EC2, SQS, S3, and Lambda, Java, Oracle (SQL).
Implemented Web Services, both server-side and client-side, FTP, sFTP, HTTP(S), JSON serialization/deserialization, SQL.
Deployed in 100’s of customers’ data centers, two-week production release cadence.
Implemented direct-deposit signup services in Spring Boot.
Implemented account bank migrations, bank change, for all PayPal accounts in Spring Batch.
SQL, Filesystem I/O, AWS SMS, Web Services server-side and client-side.
Maintained and implemented feature enhancements to a batch merchant report generation system.
Updated the video catalog and merchandising backend originally authored by Motorola for Bouygues Telecom, France.
Java EE, WildFly, GlassFish, WebSphere, REST, Wiremock, Mockito, Postman, Wireshark.
Updated Java product to use Docker and Kubernetes, Java 11, Cucumber, Reactive Extensions, Git.
Maintained hundreds of Java microservices, added new microservices all in Amazon Web Services server-side and client-side.
Linux, Netflix OSS, Cassandra NoSQL, Reactive Extensions, Hystrix, Java 8, SQS, SNS, S3, EC2, ActiveMQ, Mongo, Git, Spring.
Designed and built event / Reactive eXtension (RxJDBC), RabbitMQ Message Oriented Middleware (MOM) front to an Oracle database as part of the Resiliency Project, Java, Git.
Backend / DevOps Engineer on SOA Finagle+Protobuf+Cloud Java/Scala microservices.
Atlassian, Cucumber BDD, PostgreSQL, Hadoop, Hibernate, Scala, IntelliJ IDEA, Git.
Project Lead for integration of iOS/Android mobile task system with legacy web-based system.
Extended and maintained legacy J2EE web-based task management system.
Customers included Fortune 500 companies. Scalability and performance were paramount.
Technologies: OSGi, Gradle, and SQL Server, Git, Mercurial, Subversion, CVS.
Extended and maintained a JEE merchandise inventory system with MySQL DB, Java, Spring.
Customers: AmDocs, Etilize, Bell South, eBay, Frontier Airlines, Skyway.
ViaWest data center Linux servers for J2EE applications with Java management software, Java, Linux, VMware, Zen, Amazon Web Services.
Large number of customers including Crocs, Wells Fargo, and Hunter Douglas.
Created NIO client with could reach 100 Mb/s scale message rates.
Created new web sites, Java.
Consulted at eBay, Frontier Airlines, Bell South, Skyway representing Sun Microsystems, Inc.
Created a reporting system for packaging advertising services.
Maintained packaging advertising web site.
Technologies: JBoss, Linux, MySQL, IntelliJ, BeanShell, JSP, Lzop'ed data stream for large DB backups over NFS mounts, Java, Groovy.
Represented Sun for RUP, UP, SunTone, OOA&D mentoring and J2EE coding, Java, SCCS, Teamware, RCS, Solaris, Java.
Consulted at Citigroup, Vanguard Fiduciary Trust, Credit Suisse.
Performed an Architecture Assessment recommending SOA and JEE which later was followed as advised.
Created web-based and Swing computer assisted training systems.
Improved the performance of our custom pseudo-recursive-descent parser template engine by adding caching of parser results and by altering the parsing algorithm.
AWS Certified Developer (in progress)
Certified Java Developer
Certified Java Programmer
Patent: #6907423 Search engine interface and method of controlling client searches
B.S. Computer Science, University of Colorado at Boulder
Attended the United States Military Academy at West Point