Data

J On The Beach 2026

J On The Beach 2026 is a pure tech and fun conference for all things data, held in Malaga, Spain. Taking place alongside Lambda World and Wey Wey Web, this event brings together a vibrant community for two amazing days packed with sessions, workshops, and networking. JOTB is dedicated to serious engineering, tech talks, and community engagement, with both in…

Visit the official siteSponsorship open
71Speakers
46Sponsors
36On the bill · sessions
86Companies · in total
§I

Speakers

Programmed at J, in alphabetical order.
Alejandro Serrano
Researcher @ Kotlin Language Evolution, JetBrains · JetBrains
Alex Soto
Developer Advocate at IBM · IBM
Anja Kunkel
Staff Engineer @ Enpal · Enpal
Arman Bilge
Executive Director at the Typelevel Foundation · Typelevel Foundation
Beatriz Lavela Perez
Development Team Lead at Medida · Medida
Brian Vermeer
Chief Trouble Maker at Snyk · Snyk
Brooklyn Zelenka
Senior Researcher at Ink & Switch · Ink & Switch
Carine Morel
Software Engineer at Tarides · Tarides
Cleber de Lima
Director of Data and AI at Betsson Group · Betsson Group
Daniel Ciocîrlan
Founder @ Rock the Code · Rock the Code
Daniel Demmel
Principal AI Engineer at Tangible.finance · Tangible.finance
David Mazarro
Senior Software Engineer at Predictable Machines · Predictable Machines
Dean Schuster
Partner at Truematter · Truematter
Derek Sorensen
Researcher at the Ethereum Foundation · Ethereum Foundation
Diana Todea
DevEx Engineer @VictoriaMetrics · VictoriaMetrics
Dr. Antonio Fernández Anta
Research Professor at IMDEA Networks Institute · IMDEA Networks Institute
Dr. Roland Kuhn
Independent Consultant and Author
Enrico Tassi
Researcher at Inria · Inria
Erica Pisani
Sr. Software Engineer @ Sentry (Python SDK team) · Sentry
Erik Meijer
Computer Scientist and Entrepreneur
Erik Rasmussen
Senior Software Engineer at Fuse Energy · Fuse Energy
Francesco Cesarini
Founder & Lecturer at University of Oxford · University of Oxford
§II

Sponsors

The houses behind the program. Tiers as disclosed.
Leo VegasPlatinum
MedidaPlatinum
NNPlatinum
PrimaPlatinum
BetssonGold
The WorkshopGold
The_WorkshopGold
AdaptiveBronze
CarbonifyBronze
CodecentricBronze
dnsimpleBronze
IMDEA Software InstituteBronze
inditextechBronze
LeanFroBronze
MoonbitBronze
n0Bronze
OracleBronze
SentryBronze
VictoriaMetricsBronze
AIPressroomPartner
AI Times JournalPartner
AllconfsBotPartner
Big EventPartner
Capital BayPartner
CryptoNewsPartner
DATAFLOQPartner
DEVITPartner
ElixirConf EU
ExpoTobiPartner
GamedevPartner
IT SchulungenPartner
JetBrainsWorkshop
Kube-careersPartner
Kube-eventsPartner
Malaga AI CommunityPartner
Qubit LabsPartner
Rust JobsPartner
Scala JobsPartner
Scala TimesPartner
SOCRATECHPartner
§III

Agenda

Selected from 36 sessions on the bill.
  • 09:00 - 10:20

    Talk to be announced

    Yay On the Beach
  • 10:20 - 13:00

    How to Build UI in the AI Era

    Wey Wey Web
  • 10:20 - 13:00

    Mixed Choices: Taming Failures with Session Types in Erlang Processes

    Lambda.World
  • 10:20 - 13:00

    Small Models, Big Agents: Fine-Tuning and Serving SLMs on Kubernetes

    J On the Beach
  • 10:40 - 11:20

    Adventures in Dependent Haskell: Well-scoped expressions

    Lambda.World
  • 10:40 - 11:20

    Breaching LLM-Powered Applications: Overcoming Security and Privacy Challenges

    J On the Beach
  • 10:40 - 11:20

    Design System...Politics!

    Wey Wey Web
  • 10:40 - 11:20

    SRE Turned Upside Down

    Yay On the Beach
  • 11:30 - 12:10

    Building SDKs in the open for Humans and Bots

    J On the Beach
Intermission
Part the Second · For the Buyer

What does it mean when 86 companies show up, and 10 bet on three roles at once?

86 companies. ten are betting more than once.

The numbers below are derived from the speakers, sponsors, and exhibitors on this page, cross-referenced into one ledger. They are the only thing here that 10times.com cannot tell you.

Who's in the room
10All threespeak · spons · exh
35Sponsoringsponsor only
41Companies Speakingspeaker only

The Triple-Threat

codecentric·JetBrains·Sentry·Carbonify·DNSimple·Lean FRO·Medida·MoonBit·Oracle·VictoriaMetrics

Speakers by seniority

25% of the speakers carry senior titles: C-suite, Founder, VP, or Director-level.

  • C-suite68%
  • Founder / Owner46%
  • Director / Head of811%
  • Manager / Lead811%
  • Engineer · IC3042%
  • Research / Science710%
  • Other roles811%

Of 71 on the bill · classified by free-text title

Most-represented companies
  1. 01codecentricSp·B2V
  2. 02JetBrainsSp·W2V
  3. 03SentrySp·B2V
  4. 04CarbonifySp·B1V
  5. 05DNSimpleSp·B1V
  6. 06Lean FROSp·B1V
  7. 07MedidaSp·P1V
  8. 08MoonBitSp·B1V
  9. 09OracleSp·B1V
  10. 10VictoriaMetricsSp·B1V
  11. 11AdaptiveSp·B
  12. 12AI Press RoomSp·P
  13. 13AI Times JournalSp·P
  14. 14AllConfsBotSp·P
Sponsors by tier
platinum4
9% of 46
gold3
7% of 46
bronze12
26% of 46
partner24
52% of 46
organised by1
2% of 46
workshop1
2% of 46
unspecified1
2% of 46
At peer events but not here

These companies sponsored two or more peer events recently, but aren't on this program. For an organizer, that's a list of warm prospects.

Related events · by shared sponsors