This is a role guide, not an installed employee. It explains what the role owns and how Tycoon runs it. Nothing is hired or activated until you choose it.
What your AI Backend Engineer does
Workflows on autopilot
Spec to endpoint
Receives a spec or chat brief. Proposes a contract (method, path, input/output schemas), gets approval, ships the endpoint with tests. Typical turnaround: 4-12 hours.
Safe migration pipeline
Writes migration → dry-runs against a prod snapshot → applies to staging → verifies schema diff → applies to prod during a low-traffic window. Never drops columns in the same deploy that renames them.
Integration harness
New third-party integration (Stripe webhook, Slack event): builds with idempotency keys, retry logic, and a DLQ. Writes replay scripts so production incidents are debuggable.
API contract review
When the AI Frontend Engineer proposes a breaking change, reviews the call sites, estimates blast radius, proposes a deprecation path if needed. Ships versioned endpoints rather than breaking in place.
Background job audit
Weekly: reviews queue depth, failure rate, and idempotency correctness. Flags any job that has silently degraded and proposes fixes.
Incident forensics
On-call: reads logs, correlates traces, writes a timeline, proposes a fix and a test to prevent recurrence. Ships the postmortem within 48 hours of resolution.
Without vs With a AI Backend Engineer
- Migrations get hand-run in a panic at 2am and sometimes drop data
- Stripe webhooks double-charge a handful of customers per month
- API contracts change silently and break the frontend next Tuesday
- Backend engineer onboarding takes 3 months and costs $180K/year
- Background jobs die quietly and nobody notices until a customer escalates
- Migrations are dry-run against prod snapshots and applied in a reviewed window
- Every integration ships with idempotency keys and replay scripts
- Breaking changes go through a versioning and deprecation path with clear dates
- AI engineer is productive on day one at a fraction of the cost
- Weekly job audit surfaces degradation before it hits revenue
A day in the life of your AI Backend Engineer
07:30Reviews overnight Sentry alerts. Three 500s on the same endpoint — diagnoses missing idempotency key, ships a fix PR by 09:00.10:00New brief: add team invite flow. Proposes contract (POST /api/teams/:id/invites), writes Prisma schema addition, runs dry-run against staging snapshot.13:00Merges the invite PR after AI CTO's review. Deploys migration to staging, validates, queues for prod deploy at 17:00.14:30Pair-reviews AI Frontend Engineer's proposed API change. Flags that dropping the `legacy_user_id` field breaks 3 existing integrations. Proposes a 90-day deprecation window.16:00Weekly job audit: finds the newsletter send queue has a 2.3% failure rate (up from 0.4%). Traces to Resend rate limit, adds exponential backoff, ships.18:00Closes day: 3 PRs merged, migration applied to prod cleanly, postmortem for last week's incident posted.