Harrison Muskat

Ichi · Oakland, CA

• Architected the core platform for a building-code compliance SaaS (Rails, Next.js, GraphQL), including a multi-agent LLM orchestration layer integrating Gemini Flash/Pro and OpenAI behind a unified provider abstraction.
• Stood up the observability stack from the ground up — Prometheus, Grafana, and OpenTelemetry across Sidekiq workers, API endpoints, and the LLM gateway — establishing baseline latency, error, and token-usage metrics.
• Re-architected document processing into an asynchronous, webhook-based pipeline with S3 object storage and Redis caching, eliminating synchronous blocking in the request path and removing N+1 queries.
• Designed a security-isolated public-sharing architecture using segregated GraphQL types, enabling external collaboration and audit-grade visit tracking without exposing authenticated tenant data.
• Built an end-to-end streaming pipeline delivering dynamically generated structured outputs over GraphQL subscriptions, with artifact versioning and self-healing error recovery.

6 River Systems · Waltham, MA

• Converted the Terraform IaC surface to TypeScript invoking Kubernetes and Google APIs directly, cutting average deployment time from ~1 hour to ~8 minutes (~87%) and improving extensibility, reliability, and traceability.
• Built core infrastructure for a multi-tenant ETL platform on GKE Autopilot, scaling to 100+ customer environments and 300,000+ messages/hour, backed by Prometheus/Grafana observability and Google IAP.
• Designed and rolled out OIDC-based SSO and configurable multi-tenant infrastructure with customer-facing management tooling — directly enabling two major enterprise client wins.
• Led the 24/7/365 on-call rotation and gave technical leadership to a 12-engineer platform team; as DevOps Lead, ran a 7-engineer team across release engineering, user management, metrics/reporting, and IoT.
• Cut robot-fleet upgrade time ~67% (~60 to ~20 minutes), created a CircleCI orb standardizing CI/CD across repos, and built Node.js internal tooling that replaced manual database operations.

Earlier roles · Greater Boston, MA

• 6 River Systems — Senior Software Engineer in Test (2017–18): designed full-system regression, smoke, and integration tests for the mobile robotic fulfillment platform; first hands-on exposure to Docker, Kubernetes, Spinnaker, and GCP — the pivot into DevOps.
• Solve at MIT — Web Developer (2018–19): lead developer for the Solve platform; modernized legacy code, built test coverage, and led the transition to an Agile SDLC.
• athenahealth — Senior Payer Rules Associate (2015–17): led a cross-team Client Work Reduction project, shipping automations that cut client workload ~10%.