Open to opportunities · Berlin, Germany
Performance Marketing & Growth Specialist

Gökhan
Ağarer

I turn data into

Performance Marketing & Growth Specialist bridging analytics, creativity, and strategy. From complex datasets to clear decisions — I build systems that scale.

+37%
Merchant growth at PayTR
-30%
Acquisition cost reduction
-50%
Brand-search spend cut
3+
Years of growth expertise
01 / About

Data wiz.
Creative mind.
Growth driver.

I'm a Performance Marketing & Growth Specialist based in Berlin with a deep passion for turning messy data into clean, actionable strategy. With a background spanning digital marketing, analytics engineering, and UI design, I operate where data science meets business impact.

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.

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
+37%
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 Full Pipeline

Sentiment Analysis Pipeline

Built an end-to-end NLP system in Python to scrape and analyze thousands of social media mentions and forum posts. Transformed raw user sentiment into dynamic dashboards and narrative reports — delivering a fully reproducible, updatable brand health framework that directly informed executive decisions.

PythonNLP Web ScrapingBigQuery Looker
PAYTR  ·  2024–Present +37% 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 37% 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
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
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.