eshin@portfolio: ~

0:portfolio

ChiroHD · AI voice scheduling

Alina

  • TypeScript
  • AWS
  • ElevenLabs
  • OpenAPI

As Alina’s primary technical decision-maker, I lead four engineers and coordinate across product, go-to-market, support, and executive teams. We advanced a hackathon prototype into a SKED-integrated voice scheduling product serving chiropractic offices in production.

I built a reusable TypeScript and AWS platform around generated OpenAPI clients and namespaced ElevenLabs reconciliation. Robust, versioned agent and configuration deployments now take about 30 seconds, making it possible to redeploy the fleet in minutes.

Production quality is measured as well as observed: the voice-agent suite grew from 32 to 84 passing scenarios across six workflows, catching prompt and tool regressions that previously required nuanced manual testing.

~45 enabled offices
~60 agents
1,000–1,500 monthly calls
549 production Step Function runs · 99% success

Kollacode · enterprise data systems

Kollacode

  • TypeScript
  • Node.js
  • ETL
  • OpenAPI

At Kollacode, I led development of EDIT, an enterprise ETL platform processing more than 6,000 data loads annually for IBM Marketing. The platform reduced processing time from eight hours to 30 minutes.

Other work ranged from moving client-side data processing into Web Workers—cutting latency from minutes to milliseconds—to building an automated REST documentation generator that converts TypeScript types into JSON Schema for OpenAPI.

ls ./open-source

Open-source systems

TypeScript · Effect

effect-herdr

A typed Effect SDK for a terminal-native agent multiplexer. I fixed seven reproduced protocol and schema defects, expanded the typed RPC surface from 14 to 62 operations, and removed a redundant RPC round trip with regression coverage.

  • 14 → 62 operations
  • 7 defects fixed

TypeScript · Effect · GraphQL

effect-graphql

A prototype code-first GraphQL layer over Effect Schema and RPC. I also published authorization and testing guides through its integrated documentation site.

  • prototype
  • authorization
  • testing