SKU · 4 weeks or retainer

Realtime Rescue

Extract one hot path into Elixir or Go. Leave the rest of the company alone.

Four weeks to pull a realtime, payments, or concurrency-critical node out of Python or Ruby and into Elixir or Go. €12,000 (50% up front) or €3,000/mo with a three-month minimum.

The wound

What this is for

The node that takes the traffic — lobby, matching, payments, fan-out, live board — is still in a request/response stack that was never built for 10k concurrent users. Rewriting the product is a year. Pulling the hot path is a month.

  • SaaS or marketplace with a websocket, queue, or payment path that pages people at peak
  • A Ruby/Python/Node API that is fine at 500 users and ugly at 10,000
  • A founder who has already been told “just add Redis” and it did not hold

Rescue (4 weeks)

€12,000

50% to start, 50% at week-4 demo. Written SOW required.

Realtime retainer

€3,000/mo

Monthly in advance, three-month minimum. Capacity for the same class of work, not a blank cheque.

Cap: two concurrent retainers studio-wide. Written SOW. No handshake starts.

Four-week Rescue

What the weeks look like

  1. Week 1

    Instrument and cut the contract

    Trace the hot path, agree the API/websocket contract, freeze scope in writing. If the path is not isolatable in five days, we stop and you keep the deposit unused beyond that week’s work.

  2. Week 2

    Stand up the Elixir or Go node

    Build the replacement behind a feature flag. Same external contract. Load script on the new node, not on production users.

  3. Week 3

    Cut over

    Shadow traffic, then switch. Rollback is a flag, not a prayer. We do not invent features on the side.

  4. Week 4

    Soak and hand over

    Runbook, dashboards, on-call notes for your team. Demo of p99 and error budget vs the old node.

In

Included

  • One named hot path (API, websocket lobby, matching, or payments gateway)
  • Elixir or Go implementation, tests, and a rollback flag
  • Load note: what the node actually holds
  • Slack, one business-day response on that path
  • Weekly demo slot (Tue or Thu)

1 business day on the Rescue channel

Out

Not included

  • Rewriting the rest of the product
  • New product features unrelated to the hot path
  • 24/7 on-call
  • LocaleOps, mobile apps, or design

Questions

Before you book

Because you have a business to run. Rescue is one node, four weeks, a flag, and a number. A rewrite is a different company.

Named SKUs. Pick one. Do not invent a new one on the call.

Rescue (4 weeks) €12,000 · Realtime retainer €3,000/mo. Written SOW. 100% up front unless the offer says otherwise.