John Bartz

Dev-lead (2025-2026). Delivered new features, trained new hires, and performed code reviews for new hires. I led the AI skill development for my team - I focused on training Claude on domains, workflows, and quality standards. I tasked Claude with building multiple PoCs, documentation, and reviews. Team lead (2023-2025). My team was tasked with delivering features and quality as the team scaled up. I led the training of juniors for my team and other teams. I led our team through a 6 month effort to turn around quality and delivery. We revamped metrics and alarms leading to higher quality releases, earlier detection of issues, and a dramatic reduction in warnings & errors. My team's success led to us owning the release and review processes for multiple teams. During our first quarterly review the customer called out our team specifically as being a massive improvement. By the second year we'd cut production issues by 75%. Developer (2022-2023). I led development for one of the loyalty integrations and multiple migration tools as part of that launch. I assisted in writing documentation, developing test plans, coordinating with external partners, and developing requirements and design with architects and stake holders. I stayed on the team through launch of the product into the prod pilot phases. Dev-Lead (2022). I led the team through the transition of work to a partner team; I headed up knowledge transfers and updated documentation, helped establish the support cadence and maintenance of new issues, as well as developing for features/bug-fixes that were needed. Continued the transition effort until the work was completed. Developer (2021). I delivered new features, and over-hauled neglected tests and support docs.

Lead developer on a small team that developed a service integrating time management with payroll services. My team brought project from PoC stage to MVP. Lead developer on a small team that developed internal security services & tools with the goal of simplifying the secure storage of sensitive data; we developed multiple proofs-of-concept to demonstrate flexibility of the product with multiple integrations. We delivered postman collection to demonstrate usage for API consumers and perform basic validations for features. Performed code reviews, and wrote technical documentation for products.

PI team Helped design and led development of SpringBoot based API Service that interfaced with UI, data management, and analytics services Performed minor maintenance on deployment environment

Contract role through Prestige Staffing LLC Working on a team migrating services from AS/400 to AWS cloud as micro-services Created new services in an event-driven system

Worked on a team to refactor the persistence layer to improve performance and ease maintenance. Led development of a tool to verify synchronization between multiple content origins.

Helped maintain and implement features on a large multi-tenant cloud based system. Worked on a project to split key service off into a micro-service Led training of new team members Pushed for improvement of test coverage & negative testing to ensure stability

Worked in a tandem to develop internal tools Aided team members with training and support

Led development of Roku TV application featuring a custom guide

Helped develop and maintain distributed, unit-based test system for bulk validation Developed sample applications to demonstrate integration with an embedded video api Helped develop hardware diagnostics for Sigma MIPS boards Worked on a team to develop an action script / OSMF based web player