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Samson Tanimawo
Samson Tanimawo

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Scaling On-Call When You Only Have 5 Engineers

On-call is brutal at small scale. Every engineer takes 1 week in 5. You get woken up once a week. Burnout is weeks away.

Here's what works at 5 engineers, from someone who's been there.

Accept the reality

You cannot build a 'rested, follow-the-sun, healthy' on-call rotation with 5 people. Stop trying to mimic Google. Build for small-team reality.

The 3 things that help

1. Aggressively reduce alerts. When you have 5 engineers, you cannot afford 50 alerts/day. Cut mercilessly. Target: 1-2 pages per week per on-call. Yes, you might miss things. You'll miss more by being exhausted.

2. Kill pager fatigue with business hours routing. Non-urgent alerts go to a ticket, not a page. Only 'user-facing impact right now' alerts wake someone up. Everything else waits for morning.

3. Pay for on-call. $500-$1000/week for primary. Yes, you can afford it. If you can't, your company is too small for 24/7 on-call just accept overnight delays.

What doesn't help

  • 'Just be better at triage' (not a system fix)
  • Bringing in contractors for on-call (they don't know your system)
  • Unplanned time off after a rough week (too late, damage done)

The emotional side

The hardest part of small-team on-call isn't the pages. It's the feeling that the company rests on you personally. Fight that narrative.

  • Take real vacations. Block the week. No Slack.
  • Rotate the 'primary' role explicitly so nobody becomes the default expert
  • Document everything so anyone can handle anything

The growth path

As you hire, protect the on-call ratio. Don't add 3 engineers and immediately expand the services they're responsible for. Use growth to shrink individual load first. Then expand scope.

5-engineer on-call is survivable. 7-engineer with the same scope is comfortable. Plan for the second, suffer the first.


Written by Dr. Samson Tanimawo
BSc · MSc · MBA · PhD
Founder & CEO, Nova AI Ops. https://novaaiops.com

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