Founding Fullstack Software Engineer

Code Four is a GovTech company that uses Artificial intelligence for law enforcement through AI-driven automation.

Location: San Francisco, CA
Company size: 10–50
Posted: 3d ago
Via: Yc

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Founding Fullstack Software Engineer · Code Four

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Job title: Founding Fullstack Software Engineer
Job location: San Francisco, CA, US
Job listing URL: https://www.ycombinator.com/companies/code-four/jobs/tIBkEwS-founding-fullstack-software-engineer
Job description: **Skills:** Next.js, TypeScript, GCP, Distributed Systems, Realtime Video/Audio, GraphQL/REST We’re looking for a **fullstack** **engineer** to own massive slices of our product surface: from low‑latency video ingest to the interfaces officers use to review evidence and approve auto‑generated reports. You’ll work shoulder‑to‑shoulder with the founders, ship fast, and help define the engineering culture and architecture that powers mission‑critical workflows for law enforcement. 💻 What You’ll Own * **Event‑driven backend:** Architect our Next.js / TypeScript / GCP stack. Design schemas, queues, and webhook ingestion from BWC vendors, RMS/CAD, and DEMS to drive real‑time, personalized officer workflows. * **ML integration surface:** Productionize CV / VLM / ASR endpoints from our ML team and expose them through resilient APIs with strict latency/error budgets. * **Evidence UX:** Build intuitive dashboards that let officers review, redact, and approve reports with minimal clicks—while preserving full auditability. * **Security & compliance:** Enforce end‑to‑end encryption, audit logging, role‑based access, and CJIS controls across services. * **System design & technical strategy:** Decide how we scale to dozens of agencies, each with unique policies and templates, without sacrificing speed.

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Where this role is based

San Francisco, CA

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Code Four headquarters

San Francisco, CA

Company size

10–50 employees

Founded

2025

Total raised

$2,700,000

View company profile ↗

Funding rounds

Seed$2.7MJun 11, 2025

Investors

Y Combinator

Industries

Software Companies