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S/Signal Summit
Edition 0414–15 April 2027Rotterdam, NL

Signal
Summit’27

Two days, 41 talks, and not one of them a product demo. Infra, platform, security and data engineers on what broke, what they rebuilt, and the numbers that proved it.

Get tickets from €549See the schedule

Doors open in

09:00 CEST

Venue
Halve Maan Werf
Maashaven, Rotterdam
Seats left
586 of 1,800
Last year's opening keynote: a speaker alone on stage under a waveform on the big screen, seen from the back of a full hall

Edition 03 · Main Hall · 1,100 seats, standing room only

  • On-call that sleeps
  • Postgres in anger
  • Edge networking
  • Supply-chain security
  • Platform teams
  • Cost per request
  • Chaos drills
  • Tracing at scale
days
2
stages + 1 lab
3
talks
41
engineers
1,800

41 talks, zero vendor pitches

Speakers

Every speaker below ran the system they are talking about. Hover or tab onto a card for the talk.

  • 01

    Ines Varga-Holt

    Principal SRE

    Kettlewire

    “Our pager went off 2,300 times in a quarter. Here is what we deleted.”

  • 02

    Tomasz Okafor

    Staff Engineer, Networking

    Quayline Freight

    “BGP for application developers: one outage, slowed down”

  • 03

    Mireille Santos

    Head of Platform

    Brightfold Bank

    “Paved roads that people actually drive on”

  • 04

    Arjun Dekker

    Security Engineer

    Northgate Health

    “Rotating 41,000 secrets without a maintenance window”

  • 05

    Saoirse Lindqvist

    Database Reliability Lead

    Parcelpoint

    “Postgres at 90% disk: a play in five migrations”

  • 06

    Kwame Albrecht

    Compiler Engineer

    Ferrous Labs

    “Shaving 38% off cold starts by reading the linker map”

  • 07

    Yuki Brennan

    Observability Architect

    Tidewater Games

    “Sampling traces like you mean it: 1 in 1,000, and nothing lost”

  • 08

    Leonie Achterberg

    CTO

    Rookhaven

    “Closing keynote: the boring stack wins again”

Three stages, one lab

Schedule

Talks run 40 minutes with 15 for questions. Workshops are capped at 60 seats and fill first.

  1. PlenaryFoyer

    Badge pickup, coffee, and stroopwafels

    Ground floor

  2. InfraMain Hall

    Opening keynote: the outage budget

    Ines Varga-Holt

  3. PlatformStage 2

    Paved roads that people actually drive on

    Mireille Santos

  4. InfraMain Hall

    BGP for application developers

    Tomasz Okafor

  5. SecurityStage 3

    Rotating 41,000 secrets without a window

    Arjun Dekker

  6. PlatformLab A

    Workshop: build a rate limiter that survives a stampede

    Hallway crew

  7. PlenaryTerrace

    Harbor social on the Maashaven terrace

    Everyone

A 1920s shipyard hall on the river

Venue

Halve Maan Werf, Maashaven Zuidzijde 12, 3081 AE Rotterdam. The main hall seats 1,100 under the original crane rails.

Inside Halve Maan Werf: a converted shipyard hall with long tables under tall industrial windows

Lunch for 1,800 at the long tables of the old fitting shop

Built
1921
Floor
6,400 m²
Ceiling
22 m
Halve Maan WerfMetro line DSchematic, not to scale

  • Train

    Rotterdam Centraal is 27 minutes from Schiphol and 2h 40m from Paris by high-speed rail. From there, metro line D to Rijnhaven: 6 minutes, then a 4-minute walk along the quay.

  • Air

    Rotterdam The Hague airport has 31 direct routes; bus 33 + metro gets you to the door in 35 minutes. Most attendees fly into Schiphol.

  • Stay

    We hold 420 rooms across three hotels within 900 m at €139–€189 a night until 1 March. The code arrives with your ticket.

  • Access

    Step-free throughout, induction loops in all three stages, live captions on every talk, and a quiet room on the mezzanine.

1,800 seats · 1,214 gone

Tickets

Prices in euros, excluding 21% Dutch VAT. Full refund until 1 March 2027, name changes free any time.

Early bird

Sold out

€349per person

All 400 went in 9 days. Join the alumni list and you get first call for 2028.

  • Both days, all three stages
  • Lunch, coffee and the harbor social
  • Talk recordings within 72 hours

Standard

586 left

€549per person

Rises to €649 on 1 February 2027. Includes a seat at one workshop of your choice.

  • Both days, all three stages
  • Lunch, coffee and the harbor social
  • Talk recordings within 72 hours
  • One reserved workshop seat
Get a standard pass

Team of 5

Save 20%

€2,195per pack

Five transferable passes, €439 each. Names can be added up to the morning of day one.

Packs
1
Passes
5
vs. standard
−€550
Total
€2,195
Book 5 passes