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# 20 billion requests a week: Upgrading Twilio's API gateway at scale


- **Date:** Friday, Jul 10, 2026
- **Time:** 11:00–11:30 (30 min)
- **Room:** Stage 7
- **Event:** World Congress 2026 Europe

## Recording

[Watch recording](https://www.wearedevelopers.com/videos/100234-20-billion-requests-a-week-upgrading-twilio-s-api-gateway-at-scale)

## Description

Twilio's API Gateway is the front door for over 20 billion requests a week, regularly sustaining peaks of 60,000+ requests per second.

Over the past four years, Twilio has migrated from a legacy system built on a decade of rapid growth to a modern, hardened ingress stack. In this session, we'll go under the hood of how we modernized our gateway by unifying behind a common core, requiring explicit, contract-first development, and utilizing cellularized and redundant infrastructure principles.

Join us to learn how we successfully untangled ten years of technical debt, crossed the river, and built for the future to simplify Twilio’s enterprise ingress, all with zero major disruptions to customer traffic.

## Speakers

### [Ainhoa Arruabarrena Ortiz](https://www.wearedevelopers.com/@ainhoa-arruabarrena-ortiz)

Senior Software Engineer at Twilio
### [Mario Román Dono](https://www.wearedevelopers.com/@mario-roman-dono)

Software Engineer at Twilio
### [Marius Obert](https://www.wearedevelopers.com/@marius-obert)

Developer Evangelist at Twilio


## Related talks at this congress

- [Swapping a Data Warehouse at Runtime: Zero-Downtime Migration Without Changing a Single Client](https://www.wearedevelopers.com/events/world-congress-2026-europe/sessions/1345-swapping-a-data) — Max Fischer, Michael O'Toole
- [Beyond Webhooks: The Future of Scalable API Event Delivery](https://www.wearedevelopers.com/events/world-congress-2026-europe/sessions/1338-beyond-webhooks-the) — Phil Leggetter
- [3x Performance: A Humbling Journey](https://www.wearedevelopers.com/events/world-congress-2026-europe/sessions/1166-3x-performance-a) — Luca Trușcă
- [Super scaling for the Super Bowl: How to survive 30 million users hitting your backend in 30 minutes](https://www.wearedevelopers.com/events/world-congress-2026-europe/sessions/1386-super-scaling-for) — Irina Branovic