Open to opportunities · Berlin, Germany
Growth Marketing Manager

Gökhan
Ağarer

I turn data into

Growth Marketing Manager turning data into measurable growth, €1.5M+ paid media, +65% growth, −30% CAC, backed by the analytics, dashboards, and automation I build myself.

+65%
Merchant growth at PayTR
-30%
Acquisition cost reduction
-50%
Brand-search spend cut
4+
Years of growth expertise
01 / About

Data wiz.
Creative mind.
Growth driver.

I'm a Growth Marketing Manager based in Berlin, a permanent resident with full, unrestricted work authorization. I drive measurable growth across the full funnel (€1.5M+ paid media) and build the analytics, dashboards, and automation underneath it myself, where marketing meets data and engineering.

Currently at PayTR driving acquisition and retention through intelligent, data-led campaigns. I manage end-to-end analytics infrastructure, from server-side tracking to BigQuery pipelines to Looker dashboards.

Outside work, I'm deep into an AI Development Module at Marmara University (in collaboration with METU, Bogazici & ITU), exploring the intersection of AI and growth strategy.

Read my full story →

Tech Stack
Data & BI
PythonSQL BigQueryPower BI LookerSPSS
Marketing
Google AdsMeta Ads DV360Criteo Programmatic
Analytics
GA4GTM Server-SideAhrefs Firebase
Design
FigmaUI/UX DashboardsAd Creative
AI & Auto
n8nLMStudio AI AgentsLocal LLMs
+65%
Active merchant growth driven by data-optimized Google Ads at PayTR
-30%
Acquisition cost reduction while sustaining market leadership
-50%
Brand-search costs cut in half through intelligent campaign restructuring
MSc
International Marketing & Business Development, Marmara University
02 / What I Do

Where data meets strategy

I combine technical depth with marketing intuition to drive measurable growth across the full digital product lifecycle.

Data Analytics & BI
End-to-end analytics pipelines, dashboards and reporting systems that translate raw data into strategic decisions and ROI visibility.
PythonBigQuery LookerPower BI
Performance Marketing
Full-funnel paid acquisition across search, display, social and programmatic, optimizing for ROAS, CAC, and profitable scale.
Google AdsMeta Ads DV360Criteo
Growth & Retention
RFM segmentation, cohort analysis, and CLTV frameworks that identify high-value customers, reduce churn, and increase lifetime value.
RFM / CLTVA/B Testing CRMSQL
Analytics Engineering
Robust tracking infrastructure with GA4, GTM, and server-side tagging for accurate, privacy-compliant, first-party data collection.
GA4GTM Server-SideFirebase
Design & Visualization
Compelling dashboards, ad creatives, and UI/UX for marketing purposes in Figma, making data beautiful, clear, and persuasive.
FigmaUI/UX DashboardsAd Creative
AI & Automation
Intelligent workflows with local LLMs, AI agents and n8n automation, scaling analysis, content, and operations beyond human limits.
n8nLMStudio AI AgentsLocal LLMs
03 / Case Studies

Work that moves the needle

A selection of high-impact projects where data, creativity, and strategy collided to solve real business challenges.

PAYTR  ·  2024–Present 50K+ Posts

Voice of Customer, AI Listening Platform

An always-on customer-intelligence platform that turns public conversations into executive decisions, collecting and analyzing 50K+ posts across a brand and 9 competitors, classifying sentiment and themes with AI, and delivering board-level briefings automatically. Built at PayTR to replace manual brand monitoring; now a multi-tenant Voice of Customer SaaS.

PythonCrewAI GeminiClaude PostgresNext.js
Read the full case study →
PAYTR  ·  2024–Present +65% Merchants

RFM Segmentation & CLTV Optimization

Led RFM(T) customer segmentation and retention cohort strategies aligned with core business objectives. Identified high-value segments and orchestrated targeted campaigns that drove a 65% increase in active merchant count while cutting acquisition costs by over 30%.

PythonSQL RFM AnalysisBigQuery CRM
PAYTR  ·  2024–Present -50% Brand Cost

Automated Reporting Infrastructure

Designed automated reporting workflows using 3rd-party APIs, BigQuery, and Looker connected to Google Sheets. Eliminated manual reporting overhead, enabled real-time data-driven decisions across marketing teams, and restructured brand-search campaigns to cut costs in half.

BigQueryLooker Google SheetsAPIs GTM
PAYTR  ·  2024–Present Web + PM

PayTR.com Website & Project Management

Overseeing end-to-end management of PayTR's corporate web presence and cross-functional project delivery. Coordinating UX improvements, content pipelines, and conversion-focused optimizations while aligning engineering, design, and marketing teams toward shared milestones and release cycles.

CROA/B Testing JiraConfluence FigmaProject Management
VERINTRA  ·  2025–Present Launching Soon

Verintra Feed Optimizer, Product Feed Management SaaS

A product-feed management platform that helps online stores get more from Google Shopping, Meta, TikTok, Criteo, and more, validating and enriching catalogues, generating channel-compliant titles and descriptions with AI, scoring every product for quality, and syncing optimized feeds automatically. Multi-tenant SaaS with Google Merchant Center + GA4 integration. Currently in pre-launch.

Next.jsTypeScript PrismaMulti-tenant AI contentMerchant Center API
Explore Verintra Feed Optimizer, product feed management SaaS ↗ Read the full case study →
Feed Management
CRUD + Auto-Sync
XML · CSV · JSON export
AI Optimization
AI-generated content
A/B testing engine
Integrations
Google Merchant Center
GA4 analytics
Quality Score
Verintra Score
Supplemental feeds
PAYTR  ·  2024–Present Finance × Data

Settlement-Float Profitability Model

A financial model that maps the settlement-float window, the gap between a transaction and the merchant payout, across bank and card POS networks, quantifying term-deposit yield against operational cost to reveal true, transaction-level margins. Built with Finance in Power BI (advanced DAX) on a SQL / BigQuery backbone.

Power BIDAX SQLBigQuery Financial Modeling
PAYTR  ·  2024–Present 10+ Workflows

AI-Powered Marketing Automation Pipelines

Built production-grade n8n automation systems: a config-driven SEO Content Genie that reads keywords from Google Sheets, analyses SERPs, generates AI articles and infographics, and publishes automatically; a Blog Infografik Creator with AI image generation per post type; and a Google Business Review Monitor that watches new reviews in real-time and drafts AI-powered responses via Slack.

n8nOpenAI Google SheetsGoogle Business SlackJavaScript
SOSYOPIX  ·  2023–2024 New Best-Seller

Data-Driven CRM & Campaign Strategy

Owned Sosyopix's CRM (lead admin / "champion" on Insider). Designed every push, SMS, and email campaign on SQL-built segments, targeting the most responsive audience per send. Set discount logic, product focus, and timing using seasonality, customer-behavior, and product-profitability analysis. From a single behavioral insight in the data, I built a campaign that dethroned the existing best-seller and created a new one.

SQLInsider CRMSegmentation Push/SMS/EmailA/B Testing
SOSYOPIX  ·  2023–2024 CVR Improved

Multi-Channel Campaign Optimization

Launched and continuously optimized performance campaigns across Google Ads, Meta, and Criteo. Built comprehensive Power BI and Looker dashboards and ran retention cohort, RFM, and CLTV analyses in Python and SQL to refine channel mix, audience targeting, and creative strategy.

Google AdsMeta Ads CriteoPower BI Python
VERINTRA DIGITAL  ·  2022–Present Founder

Verintra Digital, Data-Driven Marketing Consultancy

Founded a data-driven digital marketing consultancy serving e-commerce businesses and SMEs across Turkey. Built full-service infrastructure spanning analytics architecture, full-funnel campaign management, real-time dashboards, and UX optimization, operating fully remotely.

Google AdsBigQuery Looker StudioGA4 FigmaAhrefs
Visit Verintra Digital, data-driven marketing consultancy ↗
Service Scope
Full-Stack Marketing
Analytics to Campaigns
Client Focus
E-commerce & SMEs
Turkish market
Analytics Stack
GA4 · BigQuery
Looker Studio
Operations
100% Remote
Founded 2022
04 / Contact

Let's build something great

Whether you're looking for a growth specialist, a data-driven marketer, or a creative problem-solver, I'd love to hear from you.