Jim Jonah

Building things that other things depend on.

Twenty-something years building the layer underneath — identity, mainframe tooling, distributed platforms. I design, build, and ship — and still enjoy it.

A fun side project I've been working on is detroit.games/euchre

A rough thread

  1. Identity & zero-trust

    OAuth 2.0 modernization, token exchange, RBAC at scale at Veracode. The stuff that breaks silently if it's wrong.

  2. Mainframe modernization

    Parsers and interpreters for COBOL, PL/I, JCL. Making 40-year-old systems readable again.

  3. APM & visualization

    Distributed performance monitoring. Graph-based tools for tracing data flow through things nobody fully understood.

  4. E-commerce & automotive

    Music and movie sales for JCPenney and Kmart. A vehicle transportation platform with 14 services before microservices was a word.

  5. Interactive agency

    Built Chrysler's web presence from zero and grew the team many times over. We shipped code almost hourly on a daily basis.

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