Zach Croft

Computer Science @ Northeastern. Systems, finance, infrastructure, and trumpet.

2025

2026

2027

LinkedIn GitHub

All photos

Featured work

The two I'd show you first

All projects

Go autograder

👽 Autograder Oracle

A Go autograder Stone Liu and I built for Generate's take-homes — alien invasions in 2025, a bank heist in 2026. OpenAPI, Postgres harness, fuzzing. The 2025 run graded 3,600+ submissions from 55+ candidates and stayed up the whole ten days.

Go, OpenAPI, Postgres, Docker

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oracle — go test

$ go test ./oracle/... -count=1 ok oracle/track1/ngrok 1.28s ok oracle/heist/graph 0.91s ok oracle/openapi/contract 0.24s ok oracle/harness/fuzz 4.06s ok oracle/grade/scoring 2.15s PASS # 3,612 submissions graded in ten days

Carbon accounting

🌲 Arenius

A carbon accounting platform for small and medium businesses. I was one of two technical leads on a team of five engineers and four designers, and we built it over a semester: nightly Xero syncing, the charts you see here, and a service that recommends emissions factors.

Go, Next.js, Postgres, DigitalOcean

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arenius — dashboard