Zac Rosenbauer
CTO & Co-founder at Joggr
New York, New York, United States
Summary
🤩
Rockstar🎓
Top SchoolZac Rosenbauer is a hands-on CTO and co-founder with 11 years of experience building AI-first developer tooling and scaling cloud platforms at startups and enterprise acquisitions. He blends deep operational leadership—having grown platform teams from single digits to 100+ across multiple regions and managed $50M+ multi-cloud budgets—with product-level engineering, shipping core pieces like CLIs, embeddings pipelines, and agent runtimes for Claude Code, Cursor, and Copilot. Zac led Platform, SRE, and security through SOC-2/PCI certifications and M&A due diligence at Precognitive and ShopRunner, later running Platform Operations for FedEx Dataworks at scale. An active open-source contributor, he improved security-focused TypeScript typings and tests for the widely used mongoose project and is a core contributor to VoltAgent’s workflow runtime. Based in New York, he pairs entrepreneurial grit from founding ventures as a student-athlete with a knack for translating complex infra and AI agent problems into production-grade developer experiences.
11 years of coding experience
11 years of employment as a software developer
Bachelor's degree Information Systems, Bachelor's degree Information Systems at The University of Toledo
English, german (b2)
Stackoverflow
26reputation
756reached
1answer
0questions
Github Skills (14)
type-system10
typescript10
nodejs10
typesc10
typescripts10
mongodb10
typescript-types10
mongodb-database10
odm9
testing8
rate-limiting6
passwords6
asp-net-core6
security6
Programming languages (12)
Github contributions (5)
Automattic/mongoose
Sep 2022 - Sep 2022
MongoDB object modeling designed to work in an asynchronous environment.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:5 commits, 1 PR, 1 comment in 1 day
Contributions summary:Zac primarily focused on enhancing the type definitions within the project. They added a `sanitizeFilter` function to the TypeScript definitions, a crucial step for security. Furthermore, the user corrected minor typos and removed unnecessary spaces in the codebase. Additionally, a test file for the `sanitizeFilter` function was added, improving code quality and maintainability.
pythonasynchronousmongoodmmodeling
ShopRunner/action-oss
Mar 2021 - May 2024
Open Source Software scanning Github Action. Used to scan the tools that we Open Source for compliance with our OSS policies.
Contributions:9 PRs, 17 pushes, 9 branches in 3 years 2 months
sarifscanosssecuritypolicies
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