Joe Theisman

- Delivered a stalled messaging performance initiative within 9 months by establishing clear ownership, investing in team training, restructuring for accountability, and improving communication through newsletters. - Worked closely with product and other stakeholders to plan, estimate, and schedule platform unification as part of a company wide initiative. - Coached team members on calling pattern optimizations, reducing API latency from >1s to <300ms and improving LCP by 30%. - Guided my team through enhancing system observability with context-rich dashboards in Grafana featuring SLAs, alerts, and intuitive navigation for faster troubleshooting. - Implemented PoC for integration tests on the team’s most impactful service to reduce regression and improve confidence in feature delivery establishing a pattern the team adopted - Introduced performance review calibration process to the Communications and Profile org.

Starting management in July 2021, I received 2 direct reports. This new role expanded on what I was doing as a software engineer working on the Playstation Store microservices. The team has grown to be 8 full-time engineers and 3 contractors. In this role, it has been my primary responsibility to ensure my team enables the PlayStation store to have the best user experience possible.

Backend Java engineer working on microservices for the PlayStation Store. Microservices include customer facing APIs that provide data to consoles, web store, and mobile store along with ETL jobs to process product data in quickly accessible format to allow APIs to meet strick SLAs.

Created an application to provide and track filtered data to internal customers. Data came from multiple sources such as MySQL, Redshift, MsSQL, S3, and REST APIs. The data was requested via a custom REST API written in Java 8 and Spring. The data processing was done on a single EC2 instance for small datasets (a few GB) or Spark for larger datasets (25+ TB). Created a second streaming application to track data for different internal customers and aggregate the data from other sources. Streams came from Kafka and Kinesis and the data we merged it with came from multiple databases.

I worked on the consumer web application at NISC. This web application, coded in Java/GWT, allows users to pay their bill, view their usage, sign up for email/SMS notifications and much more. In working with this consumer application, I also have to work with the customer service representative facing application to get information off the utility's server and displayed to the user. During my tenure at NISC I worked my way from a Software Associate, to Lead Sr. Software Specialist. I lead my team in a transition from Waterfall to Agile and worked closely with product management and senior development management to coordinate features and schedules. I also held the programming lead role and would help in the design and implementation of most features in the application.

I received my Masters of Science degree in Managing Information Technology in December 2016. My focus during my studies was virtualization and big data.