Software Engineer · VYNYL
Consultancy work is project-shaped, so here it is by project. Client names are anonymized; the work is real.
Cognitive assessment platform for a medical research institution
De-facto owner of everything but the iPad app for a clinical cognitive-assessment platform. Leading its modernization: five repositories consolidated into one npm-workspaces monorepo, alerting-as-code in New Relic and OpenTofu, and a one-day production-hardening sweep that surfaced around 35 issues and closed a real auth-bypass path. Also extended the scoring and EMR-export logic the clinics and researchers depend on.
AI assistant platform for mass-tort litigation
Rebuilt a stalled prototype into a production multi-tenant SaaS and grew into lead engineer. Replaced a Node-RED/Azure proof-of-concept with a from-scratch Hono/TypeScript API and a real multi-tenant foundation (organizations, roles, per-org AI assistants), migrated the AI layer to AWS Bedrock, and shipped a focused MVP to the first paying clients about four months from kickoff. Led the team, the architecture, and the roadmap, and stayed on through a round of client funding cuts.
Billing & invoicing platform for a state child-advocacy agency
Own the invoicing workstream on a serverless Laravel case-management platform. Designed and built the invoice export pipeline end to end: PDF and CSV output in summary and detailed variants, a queued generator so large exports don't block the request, tenant-authorized downloads, and handling for invoices with roughly 1,100 line items. Also built the configurable invoice-alerts system, extracting shared logic into a reusable trait so the same engine drives the end-user and admin views.
Settlement fund distribution platform
One of two senior engineers on a live settlement-fund distribution platform. Owned the claimant change-request system end to end: a locked-account review flow with a before-and-after diff, one-at-a-time or bulk approve/deny, automatic status emails, and SSN/EIN masking throughout. Built the admin document-management module on S3 presigned uploads and stood up the platform's Playwright integration and visual-regression testing from scratch.
Early literacy screening & intervention platform
Built the student assessment-audio recording and upload pipeline for a dyslexia screener now validated across twelve-thousand-plus K–2 students. Minted presigned multipart S3 URLs through a Hasura action, moved uploading into a web worker, and added retry handling and a completion gate that survives flaky school-network connections. Also rebuilt the Contentful-backed intervention-resource library so educators can actually find what they need.
Grants & programs dashboard for a state public-health agency
Owned the CSV import/export subsystem for a data-heavy public-health budget dashboard in .NET Razor Pages. Built a reusable import/export service and a fault-tolerant importer that skips bad records and reports exactly which rows failed and why, so staff can re-seed the database without an engineer. Extended the charting system and added a broad model and service test suite against containerized SQL Server.
Nationwide teletherapy platform
Backend engineer on patient and clinician portals integrated with AthenaHealth and Salesforce on a serverless AWS stack. Owned the open-slot availability sync against a slow EHR API, grinding out the concurrency and correctness bugs that cause double-bookings, and architected multi-provider-group online booking. Proposed and drove an event-sourcing refactor onto DynamoDB Streams that cut processing time for a representative batch by roughly 5.5x in production.