Professional focus

Cross-platform command line interface and SDKs for client & mainframe automation.

I created keytar-rs, a cross-platform Rust credential library, and contributed it to Zowe as the Secrets SDK used by Zowe CLI and Explorer. It replaced the abandoned node-keytar dependency while retaining access to existing credentials. I extracted a reusable Rust core and co-developed Python bindings. I also built version-aware schema APIs for shared configuration across Zowe clients, preserving other clients’ profile types during plug-in changes.

A self-contained native CLI for z/OS UNIX and an alternative to ZOAU. The zo server command exposes multithreaded JSON-RPC over stdin/stdout, with SSH providing remote transport.

I designed and built the C++ CLI parser and command-processing framework, including native plug-in support and handlers shared by local commands and the embedded JSON-RPC server. I consolidated the CLI and server into one binary and optimized release builds, reducing their combined size from about 20 MB to 6.9 MB. I also added conflict detection and ISPF metadata preservation for safer editing.

Mainframe data, files, and batch jobs in VS Code, with Zowe Remote SSH integration connecting native z/OS tooling to everyday development.

I designed the in-memory filesystem that exposes mainframe resources through standard VS Code APIs, enabling native workspaces and integration with other extensions. I built reusable table and webview frameworks for extension authors, then extended developer workflows with paginated data-set browsing and multi-source cross-LPAR copying.