Senior Full-Stack Product Engineer

Senior Full-Stack Developer · dRPC, Aug 2022 – October 2026 · Remote

Built the initial customer web application as the company's first engineering hire: authored the PostgreSQL data

model, API via tRPC and ClickHouse integration layers, and React/Next.js UI, then expanded the product with the

engineering team over four years.

Enabled team-based access on a live product: led the multi-tenancy rebuild with invitations, a role permission

model and reusable API authorization middleware; migrated existing users to personal teams without downtime.

Automated enterprise invoicing with an admin review-and-send workflow, server-side PDFs and email delivery.

Integrated Paddle cards and subscriptions alongside crypto top-ups, and built the x402 endpoint handing agent

payments to the billing backend.

Built customer and foundation analytics, including 20+ ClickHouse query modules for foundation dashboards

covering latency, uptime, block lag and regional coverage. Fixed customer analytics out-of-memory failures and

added server-side caching for expensive aggregates.

Delivered customer API access and authentication: designed the public Key-Management REST API and

OpenAPI specification; implemented web3 wallet, email/password and Google login, tenant-scoped permissions,

brute-force protection and audit logging, backed by regression tests.

Software Engineer · Prometheus Research, an IQVIA business Oct 2019 – Jul 2022 · Remote

Built full-stack features with React and Python, including complex survey and data-collection UI forms for clinical

research.

Contributed to database design decisions, built the frontend of a medical cohort builder for the ASH Research

Collaborative, and introduced Playwright regression testing to the workflow.

Earlier roles 2014 – 2019

Frontend Developer · BeKitzur — client web apps in React/TypeScript; Jumio, Braintree, Highcharts. 2018