Alper Şimşek
LON --:--:--
Alper Şimşek · Product builder · London

Product builder.

Product at scale for eight years.
My own products by night.

Most recently I led data modernisation at Booking.com, through July 2026. Alongside it I ship my own voice apps, life tools and AI agents end to end: strategy, pixels, code. Open to the next product role.

00:00 – 24:00One clock

Two shifts. One clock.

Everything on this page runs on London time. Eight years of day shifts at scale, and a night shift that never stopped shipping.

Based

London, UK. 51.5°N. Remote friendly.

Last role

Product Manager at Booking.com, Nov 2021 to Jul 2026. Data modernisation across 15+ teams, zero disruption.

Night shift

Voice apps, life tools and AI agents. Designed, built and shipped solo, end to end.

Before that

Data engineer to product lead across Insider, Trendyol, n11 and Bunq. Three recommendation systems, twice hands-on.

Disciplines

Strategic vision · Product management · AI development · Venture building

Cadence

Ships daily. An agentic pipeline takes work from ticket to production overnight.

Open to

Product roles, advisory and select engagements. Available now.

21:00 – 02:00Night shift · own products

Built at night.

Products I design, build and ship end to end. Most of them started as a voice note.

09:00 – 18:00Day shift · product at scale

Shipped at scale.

Platform migrations, data modernisation and compliance portals, from Booking.com back to n11.

01Booking.com · Rides

Hadoop to Snowflake, on target

209 workflows and 342 data assets across 12 legacy systems, landed on the April 2026 date with zero business disruption. More than a cutover: redesigned data contracts and left the data fit for AI.

209
workflows
342
data assets
12
legacy systems
Read the case
02Booking.com · Attractions & Rides

Data modernisation, Attractions and Rides

Multi-year infrastructure modernisation across 15+ cross-functional teams, expanded from a single migration into how the whole business works with data.

15+
teams
70%
efficiency gain
0
business disruption
Read the case
03Booking.com · EU DMA

Partner Intelligence Platform

A self-service data portal for third-party Attractions providers, compliant under the EU Digital Markets Act. Led six engineers and a PM; delivered on schedule.

2 wks
analyst work saved / quarter
6+1
engineers and PM led
On time
DMA compliance
Read the case
04n11.com

Behavioural events and recommendations

Led 11 engineers to redesign the data architecture and recommendation system for a marketplace with over a million monthly active users.

+7%
conversion
+10%
engagement
1M+
monthly actives
Read the case
Any timeContact

Let's talk.

Open to product roles, advisory and select engagements. London, remote friendly. I reply in days, not weeks.

© 2026 Alper Şimşek · built at nightSpace · Mountain · Clock51.5074°N 0.1278°W