The cover of Vertical Velocity, by Paulo Avelar
Paulo Avelar · coming in 2026

Vertical Velocity

How to Break Silos, Ship Faster, and Reclaim Engineering Joy

I was sitting in a war room at 2 AM, watching a backend team blame the frontend team, who blamed the DBA, who blamed the security team. A critical checkout flow had been down for six hours. Every team had dashboards showing they were “green.” Every engineer was working flat-out. Nobody was wrong. But the customer was still broken.

That night, I stopped asking “who is at fault” and started asking “how is the system designed?”

That question runs through every chapter. Vertical Velocity is the playbook that answers it: the numbers that win over leadership, the conversations that bring managers along, the contracts and tests that let each team ship on its own, and the metrics that prove it's working.

Not out yet. The workshop cards are here today.

Who it's for

Practitioners already feeling the pain

Not for beginners: it assumes you know what a microservice is and what CI/CD means.

What's inside

A playbook, not a theory

Part 1 · The problem

The invisible wall: why siloed teams fail. The economics of flow: Cost of Delay and Kingman's formula, the financial case for change.

Part 2 · The solution

The anatomy of a feature team, the blueprint for the transition, the day-to-day engine inside the pod, and the contract security shield: Pact, Spectral and a Definition of Done.

Part 3 · The enablers

Architecture as an enabler with the Inverse Conway Maneuver, and mitigating cognitive load with a thinnest viable platform.

Part 4 · Measurement and scale

Measuring what matters with DORA and Westrum, two turnarounds told in full, and how to sustain the change.

Bonus · AI as a cognitive co-pilot

A prompt library for contract tests and API specs, and the checklist to run before trusting what it writes.

Every chapter ends with tools you can use the next day: a value stream mapping workshop script, conversation scripts for resistant managers, copy-pasteable contract tests and linting rules, a DORA calculator, and a feature team maturity self-assessment. The code is tested and runnable in the companion repository.

About the author

Paulo Avelar

Paulo has lived the paradox from every side: as a developer with an overflowing board and nothing shipped in three months, as a tech lead with a fully utilized team missing every commitment, and as a manager whose engineers worked nights while the CTO asked why everything was so slow. The case studies in the book are composites of organizations Paulo has advised or worked inside, from e-commerce marketplaces to regulated banks.

Read Paulo's blog at pauloavelar.me ↗ (opens in a new tab)

Try the cards with your team

Start with the DORA calculator or the Westrum culture check: free, and no sign-up.

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