Thomas Graskemper is a cloud and infrastructure leader with 13 years of hands-on experience modernizing systems and delivering resilient, cost-effective cloud platforms. Currently Director of Cloud Operations, he has driven automation, observability migrations, and multi-product modernization while repeatedly cutting cloud costs and consolidating tooling. His background spans big data and distributed systems—Hadoop, Cassandra, Kafka—and deep AWS/Terraform expertise, plus practical DevOps in Chef, Kubernetes, and CI/CD pipelines. An active contributor to open-source projects, he’s fixed core game-mechanics bugs in the rAthena MMORPG server and improved enterprise Chef cookbooks for Consul, signaling a willingness to dive into diverse codebases. Based in Paradise Valley, AZ, he combines systems-level analysis with a track record of leading teams through operational change and measurable efficiency gains.
13 years of coding experience
10 years of employment as a software developer
High School Diploma N/A, High School Diploma N/A at Cloverleaf High School
Contributions:5 commits, 3 PRs, 3 comments in 1 year 4 months
Contributions summary:Thomas contributed to the `consul` cookbook by modifying configuration files and resource definitions. Their work included refactoring attribute types and adding new properties for enterprise installations. Furthermore, the user addressed a bug on Windows platforms, adjusting service configuration parameters. These modifications indicate a focus on maintaining and improving the Chef cookbook's functionality and compatibility.
rAthena is an open-source cross-platform MMORPG server.
Role in this project:
Back-end Developer
Contributions:81 commits in 7 months
Contributions summary:Thomas primarily contributed to bug fixes within the rAthena MMORPG server project, focusing on correcting game mechanics related to skills like Phantom Thrust, and adjustments for issues related to client-side graphics and various skill formulas. The user modified code across multiple files including skill, battle, and status files to address reported bugs and ensure the game's features behaved as intended. Furthermore, the user also made changes to the core code to adjust the behaviour of status changes to further align with the intended game behaviour.
gamemysqlgame-serverc-plus-plusrathena
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Thomas Graskemper - Director Of Engineering at Instructure