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BUILDING IN PUBLIC

HAYREDDINTÜZEL

Hayreddin Tüzel speaking at a conference

Building #1 online learning platform

Co-Founder & CTO @ Flalingo · AI-First

I build. I test. I share what survives.

SEE WHAT I'M BUILDINGREAD MY THINKING
133K+ StudentsActive Students
2500+ TeachersTeachers Onboarded
$0 VC FundingVC Funding
25+ Books AppliedBooks Applied
BOOTSTRAPAI-FIRSTBUILDERARCHITECTGROWTH

01 / BUILDING

FLALINGO

133K+ active students

Co-Founder & CTO

A 360° AI-powered language learning ecosystem — not just a video call with a teacher. 10 integrated components: FLAI analysis, Smart Matching, adaptive homework (Flomework), AI Speaking practice, Oxford-backed curriculum, gamified kids platform, mock exams, and a 4-stage lesson cycle (Warmup → Prep → Live → Reinforce). Only 1 in 73 teachers pass selection. Bootstrapped to 133K+ students — $0 VC.

EdTechAI-FirstBootstrapB2C
→ VISITFEATURED

FLAI

47 metrics/lesson

Creator & Architect

Post-lesson AI engine analyzing every session across 47 CEFR metrics — Accuracy, Fluency, and Lexical Resource. Feeds personalized homework into Flomework, generates targeted speaking drills via FLAI Speaking, and writes adaptive children's stories based on each kid's grammar gaps. Recycled from Ekotify's speech analytics DNA.

AI/MLNLPAnalytics

SMART MATCHING

18 data points

Algorithm Design

Proprietary algorithm processing 18 data points — learning goals, personality traits, CEFR level, scheduling patterns, and live performance signals — to build profile vectors and compute optimal student-teacher pairings. Every completed lesson refines the model. Integrated with TQS (Teacher Quality System) for continuous calibration.

AlgorithmMatchingData Science

AZMI BOT

27 ★ on GitHub

Creator

GitHub Actions system orchestrating Claude Opus for planning and Gemini Pro for coding/review. Full pipeline: Jira ticket → quality gate scoring (0-100) → technical spec → implementation → PR → AI code review → auto-merge. Supports vision (mockups, screenshots) and multi-repo routing. Replaces a junior developer workflow end-to-end.

AutomationAI AgentsDevOps
→ VISIT

FLALINGO CRM

2 SaaS replaced in 15d

Creator & Architect

Custom-built CRM that replaced two annual SaaS subscriptions — Pipedrive and Intercom — in just 15 days. Tailored to Flalingo's exact sales and support workflows: lead pipeline, student lifecycle management, automated follow-ups, and internal communication channels. No more generic tools with 80% unused features. One system, fully ours, zero recurring license fees.

Full-StackAI-FirstCRMAutomation

WIN ROOM

Live in production

Creator & Architect

Privacy-first, gamified sales room with live WebSocket updates. Agents see their own numbers, others see only rank + bar. Claim system (first sale, remarketing, upgrade, installment), objection management, personal goal tracking, and automatic margin calculation. Built with Next.js 14, React 19, Tailwind CSS 4, Socket.IO, and PostgreSQL.

Full-StackReal-TimeAutomation
→ VISIT

FRESHCHAT VECTORIZER

2-dim RAG pipeline

Creator

Two-dimensional RAG pipeline powering Flalingo's AI support assistant. Vectorizes thousands of historical Freshchat conversations and multilingual FAQ articles into Qdrant. Retrieves semantically relevant context at query time and generates accurate, on-brand responses. OpenAI embeddings, Express.js API, token-secured endpoints.

AI/MLRAGNLP
→ VISIT

ASKANY

Live at askany.me

Creator

Privacy-focused Q&A platform for events, meetings, and classrooms. Instant session creation with no registration, real-time polling updates, upvoting system, and automatic 7-day cleanup. Next.js frontend, Express.js + Redis backend. Live and open-source.

Full-StackReal-TimeOpen Source
→ VISIT
Competition validates demand. Enter red oceans, create mini blue oceans.

ON STRATEGY

02 / THINKING

Ideas I’m exploring

Applied reading

I don’t just read books. I apply them at Flalingo and share what works.

How Brands Grow

Byron Sharp

Applied: Mental & physical availability strategy at Flalingo

Obviously Awesome

April Dunford

Applied: Positioning framework: 'Turkey's #1 online English platform'

The Cold Start Problem

Andrew Chen

Applied: Teacher supply & network effects playbook

Confessions of the Pricing Man

Hermann Simon

Applied: Value-based pricing model for subscriptions

Lean Analytics

Croll & Yoskovitz

Applied: OMTM selection and metric frameworks

Influence

Robert Cialdini

Applied: Conversion optimization & persuasion patterns

Hacking Growth

Sean Ellis & Morgan Brown

Applied: Growth experiment framework & north star metric discipline

Zero to One

Peter Thiel

Applied: Monopoly thinking & contrarian positioning

The Mom Test

Rob Fitzpatrick

Applied: Customer interview methodology for product decisions

Hooked

Nir Eyal

Applied: Habit loop design in student engagement flows

Crossing the Chasm

Geoffrey Moore

Applied: EdTech market segmentation & beachhead strategy

Thinking, Fast and Slow

Daniel Kahneman

Applied: Cognitive bias awareness in UX & pricing decisions

The Hard Thing About Hard Things

Ben Horowitz

Applied: Wartime CEO mindset during bootstrapped scaling

Measure What Matters

John Doerr

Applied: OKR framework adapted for small teams

Made to Stick

Chip & Dan Heath

Applied: Message crafting for marketing & internal comms

Atomic Habits

James Clear

Applied: Habit design principles in student retention systems

Blue Ocean Strategy

W. Chan Kim & Renée Mauborgne

Applied: Studied to understand — then chose red ocean entry instead

Predictably Irrational

Dan Ariely

Applied: Behavioral economics in pricing & conversion design

Sprint

Jake Knapp

Applied: 5-day sprint methodology for rapid product validation

Traction

Gabriel Weinberg & Justin Mares

Applied: Bullseye framework for channel prioritization

The Innovator's Dilemma

Clayton Christensen

Applied: Disruption theory applied to EdTech market dynamics

Contagious

Jonah Berger

Applied: Word-of-mouth engineering for organic growth

Rework

Jason Fried & David Heinemeier Hansson

Applied: Bootstrap philosophy & small-team operating principles

Thinking in Bets

Annie Duke

Applied: Decision quality vs outcome quality in strategic choices

Inspired

Marty Cagan

Applied: Product discovery techniques & empowered team model

Super Thinking

Gabriel Weinberg & Lauren McCann

Applied: Mental model toolkit for faster, better decisions

03 / JOURNEY

2015

Co-Founder & CTO

Turacoon Founded

Co-founded first online Turkish learning platform. The seed that would eventually become Flalingo.

2018

SFCC Developer

OSF Digital

Started career in enterprise e-commerce. Built Salesforce Commerce Cloud solutions for global brands.

2020

Senior SFCC Developer

Internetstores

Migrated legacy PHP systems to SFCC for Europe's largest bike & outdoor retailer.

2021

Rebrand & Relaunch

Turacoon → Flalingo

Pivoted Turacoon into Flalingo — sharper brand, sharper product. Turkey's #1 online English platform was born.

2021

Co-Founder

Ekotify

AI-powered customer experience analytics. Call center speech analysis, NLP, automated scoring.

2023
→ PIVOT

Pivot & Recycle

Ekotify → FLAI

Recycled Ekotify's speech analytics DNA into FLAI — Flalingo's lesson analysis engine.

2023

Software Engineer

Algolia

AI-powered search platform ($2.25B). SFCC integration cartridge & PWA Kit.

2024

Flalingo Breakout

5x Growth

Bootstrapped. 133K+ students. AI-first product strategy paying off.

2025

All In

Full-Time Flalingo

Left Algolia. Full focus on scaling Flalingo and building the AI education future.

04 / CONNECT

Let's build
something.

Whether you want to discuss AI strategy, explore workshop opportunities, or just talk about building products — I'm always open to good conversations.

BOOK A WORKSHOPSCHEDULE CONSULTANCY
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