Building products thatmatter
I'm Alper Simsek, a Product Manager at Booking.com and serial entrepreneur. I build AI-powered platforms that democratize access to advanced technology—from unified AI tools to mental health apps that help thousands of users daily.
Featured Projects
From personal ventures to enterprise-scale initiatives, here's a showcase of my work across different domains.
Personal Ventures
Apps and platforms I've built to solve real-world problems
Side Project
PlanWell - Mind Map with Speech-to-Text
A web application that allows you to create interactive mind maps with a dark, modern UI. Features include adding nodes, connecting them, and using speech-to-text via OpenAI's API or input text to effortlessly add content.
iOS Development
MoodWell - Privacy-First Mental Health App
Born from personal experience during challenging times, MoodWell is a free iOS app that helps users track emotional patterns while maintaining complete data privacy. Features local-only storage, trend analysis, daily notes, and full data export control—no subscriptions or data mining.
AI Platform
Horizon Spark - Unified AI Platform
A comprehensive AI platform consolidating multiple premium models (Claude, GPT-4/5, Google Imagen, MiniMax) into one accessible subscription. Features intelligent model routing, seamless tool integration, and has generated 6,000+ images, 100+ videos, and 300+ songs since launch.
AI Integration
Sumletter - AI-Powered Summaries
AI-driven platform that creates intelligent summaries and helps users stay informed efficiently through automated content curation.
AI Agent
Brainstorm AI Agent
An intelligent brainstorming companion that uses AI to help users generate ideas, solve problems, and enhance creative thinking processes.
iOS Development
MinimaDo - Minimalist Task Manager
A beautifully simple iOS task manager and habit tracker focused on minimalist design and effortless productivity. Features AI-powered speech-to-task conversion.
Health Tech
QuantaCaps - Nutrition Tracker
Built in 24 hours, a streamlined nutrition and supplement tracker helping users optimize their vitamin intake through smart meal planning.
Enterprise Work
Large-scale initiatives at leading tech companies
Strategic Leadership
EU DMA Compliance: Partner Data Sharing Portal
Led the data sharing initiative for a cross-functional project to develop an insights portal enabling compliant data sharing with business partners under the European Union's Digital Markets Act (DMA) regulations.
Strategic Data Leadership
Data Modernization Initiative
Led a comprehensive, enterprise-wide data modernization program, expanding from an initial data migration project to a full-scale transformation of legacy systems. Developed and executed a strategic 2-year product roadmap.
Product Ownership
Behavioral Event Streaming & Recommendation System
Led a comprehensive redesign of n11.com's behavioral event streaming infrastructure to enhance user understanding and drive personalized experiences. Implemented smart recommendation banners that generated a 7% increase in revenue within the first month.
What I Do
My expertise spans across product strategy, technical leadership, and innovative problem-solving.
AI DevelopmentAI Development & Integration
Creating innovative applications powered by AI, including speech-to-text functionality, intelligent automation, and seamless integration of AI capabilities into product experiences.
Product ManagementData-Driven Product Management
Transforming complex technical challenges into scalable solutions while delivering measurable business impact through data-informed decision making.
StrategyStrategic Vision
Developing and executing multi-year technical transformation roadmaps, including cloud migration strategies and enterprise-wide data modernization initiatives.
Program ManagementProgram Management
Orchestrating complex, multi-workstream initiatives with clear governance structures, stakeholder alignment, and measurable outcomes.
LeadershipStakeholder Management
Building consensus across diverse stakeholders, aligning technical initiatives with business priorities, and communicating complex concepts effectively.
LeadershipTechnical Leadership
Leading cross-functional teams to develop innovative data products and technical roadmaps aligned with organizational goals and business objectives.
ArchitectureData Architecture
Designing scalable data architectures that support business growth, improve data accessibility, and enhance analytical capabilities.
Current Role
Leading product initiatives at one of the world's largest travel platforms.
Booking.com
Product Manager | 2021 - Present
Leading cross-functional product initiatives across Booking.com's Attractions and Rides divisions data teams, driving innovation in travel technology and data-driven experiences.
View Full Experience