Designed and built the full application sign-in flow including SSO via OAuth and SAML, with SCIM remote provisioning and user management. Authenticated and authorized all internal requests and communications with JWTs utilizing either JWS or JWE as appropriate. Advised and trained other engineering teams on best practices related to software security. Built and trained a team to take over operations and maintenance of all software security projects.

Built operators and other processes in Go to automate Kubernetes cluster management and application deployment across multiple data centers and cloud platforms.

Built a custom Kubernetes operator in Go to manage the full deployment lifecycle of a frequently deployed product.

Architected, implemented, maintained, and managed an ETL infrastructure built upon Airflow and Presto. Designed, built, and maintained automation tools to simplify common tasks and developed custom jobs to handle specific problems. Utilized Jenkins, Terraform, Ansible, and Docker to codify, update, maintain, and deploy infrastructure and code. Worked with business and technical stakeholders to develop requirements, communicate changes, and fulfill needs of all parties. Mentored and collaborated with technical colleagues to design, implement, and improve ETL and other technical projects. Championed changes in organizational and engineering processes including technical leadership, data correctness, and platform architecture. Communicated with, educated, and addressed concerns of coworkers on business and non-technical teams.

Architected, replaced, built, and maintained Java REST services utilizing Jetty, RestEasy, Guice, and JPA. Created and maintained a Maven build environment. Built stream processing and aggregation flows with Spark Streaming and Kafka sinking data into S3 and PostgreSQL.

Architected, led, built, and maintained backend Java REST services on top of DropWizard. Created and maintained a consistent build environment utilizing Jenkins, Maven (base pom), Nexus, GitHub and an open source software deployment platform called Airship [https://github.com/airlift/airship].

Built and tuned, from scratch, an internal Hadoop cluster and related services (Pig, Hive, HBase, Zookeeper). Drove needed changes in data reporting, metrics, and analytics to improve internal visibility into user experience, application performance, and business metrics. Additionally created and maintained internal Java SOA services utilizing both internal and open source projects.

Built and maintained ETL flows on a S3/AWS/EMR stack using Hadoop, pig, and standalone Java jobs processing over 1TB/day. Also managed scheduling with Azkaban and built a Pig, Hadoop, Protocol Buffers processing stack allowing for dynamic, manageable, and backwards compatible data changes for both ETL and analytics staff.

Updated and advanced an ETL system built with Hadoop, Netezza, Java, Oracle, and internal data sources. Built scheduling, logging, monitoring, and alerting of ETL systems and flows using Bash, SQL, Java, and external reporting tools significantly improving reliability and visibility. Maintained and supported live production systems. Handled tickets from both internal and external sources by investigating problems and patching existing software and/or creating tools and automations to handle common issues or requests.

Built web applications for several small businesses primarily using PHP and AJAX with other associated frameworks and tools as dictated by the project.

Wrote and maintained a massive data-mining operation processing 25GB+/day operating on a 10TB Netezza database. Wrote, maintained, and consolidated several automated systems in PL/SQL to handle reporting and configuration data. Also, Maintained, expanded, and supported an extensive reporting system growing the available reporting services to allow correct, consistent, and informed decisions. Used Perl and PHP to create custom reports, drill downs, and user interfaces as extensions to the current system and stand alone applications.Built and maintained a production SOAP API for advertisers to replace a legacy XML only system; and worked with advertisers to setup, debug, and troubleshoot installation and setup of both our API and also other technical systems and problems. Maintained and expanded our ad-serving database operations with a real-time rules based capping system, an automatic minimum bid adjustment, database design and table structure, and optimization and consolidation of database procedures, views, objects and functions.