San Francisco

Hi, I’m Evan.

I’m a software engineer at the KERI Foundation, where I work on open-source identity software.

Résumé (PDF)GitHub LinkedIn

Selected work

KERI Foundation · 2026

Hosted identity infrastructure

Designed and built the provisioning path that lets wallets create accounts and allocate hosted identity services.

Durable background operations for account and service creation and deletion.
Persistent operation state that a wallet can recover after a restart.
Wallet integration across Locksmith and FortWeb.

Case study Hosted onboarding and account API Durable HIO operation worker

KERI Foundation · 2026

Python identity runtime for the browser

Added IndexedDB persistence to Keripy's Pyodide runtime and built WASM-compatible cryptography packages.

Pyodide integration for the canonical Python identity implementation.
IndexedDB-backed persistence for identity state across reloads.
WASM-compatible libsodium and liboqs packages, plus a Pyodide BLAKE3 recipe.

Case study Browser database layer Ordered-set persistence

healthKERI · Archimedes · 2025

Cloud operations tooling for Archimedes

Built AWS deployment and GCP firewall tools, plus Kubernetes deployment and network-policy tooling, for an MCP-based agent product.

AWS server-deployment tooling.
GCP firewall tools with validation for port rules, priorities, and network tags.
Kubernetes deployment manifests and tooling for RBAC, network policies, and services.

Case study Archimedes

Other engineering

Open source

Protocol upgrade across five codebases

Implemented version-aware message transport, OOBI and replay handling, and signed replies across Keripy, kf-boot, Locksmith, witness, and watcher services; debugged wallet onboarding against the local service stack.

Faster tests without shared port collisions

Introduced pytest-xdist for Linux and macOS and replaced fixed witness ports with per-worker reservations. Windows later moved to a faster sequential runner-temp lane.

Async wallet operations and cleanup

Replaced QThread-based onboarding workers with asyncio tasks, added parallel witness provisioning, and made cancellation, rollback, and failed-cleanup recovery explicit.

Systems projects

Course operating system

Built major process, descriptor, and I/O subsystems in a two-person operating-systems project.

C · MIPS · Processes · Memory

MCMC substitution-cipher solver

Rewrote a substitution-cipher solver in C++ with precomputed language scores and parallel search chains.

C++17 · MCMC · Threads · CMake

Experience

Jan 2026—Present

KERI Foundation

Software Engineer

Open-source identity infrastructure, wallets, hosted services, and browser runtimes.

Oct—Dec 2025

healthKERI

Software Engineer

AWS, Kubernetes, and GCP operations tooling for an MCP-based agent product.

Sep—Dec 2025

Merivia

Software Engineer (part-time)

TypeScript/PostgreSQL dashboard APIs, metric processing, and structured questionnaire tooling.

Talks

KERICONF26

Wallet and infrastructure work

Spoke about the open-source infrastructure behind KERI wallets and hosted services.

Internet Identity Workshop

Open-source KERI infrastructure

Led a session on the service stack and the work required to make it usable from wallets.

Want to talk?

I’m interested in infrastructure, backend, security, and developer-tools work. Or if you love jazz or want to play pickleball, feel free to reach out.

evanja57@gmail.com