Freelance performance marketer · Berlin & Athens

Marketing that pays for itself, measured to the euro.

I'm Theodoros Vasariotis. Since 2010 I've gone from leading social media for big brands, to running ecommerce, to full-time performance marketing. Today I help businesses in Berlin and across Europe plan, launch and scale paid growth on every major ad platform.

Theodoros Vasariotis, freelance performance marketer
Theodoros VasariotisTaking new projects
2010Working in marketing since
15+ yrsSocial, ecommerce, performance
8+Ad platforms managed hands-on
Berlin · AthensClients across Germany & Europe

What I can do for you

One person who covers the full chain, from the first idea to the last conversion. Hire me for a single channel or for the whole plan.

Paid media on every platform

  • Google Search & Shopping
  • Performance Max
  • YouTube
  • Meta (Facebook & Instagram)
  • TikTok
  • LinkedIn
  • Pinterest
  • Microsoft Ads

Digital strategy from scratch

  • Market & competitor analysis
  • Audience & persona definition
  • Channel mix & budget allocation
  • Go-to-market plans
  • KPI & funnel design

Research & development of an idea

  • Idea validation
  • Demand & keyword research
  • Pricing & positioning tests
  • MVP launch campaigns
  • Product–market fit signals

Ecommerce growth

  • Product feeds & Merchant Center
  • Shopify & WooCommerce
  • Conversion rate optimisation
  • Retargeting & email flows
  • ROAS & margin planning

Social media & content

  • Social strategy & calendars
  • Ad creative direction
  • UGC & influencer campaigns
  • Community management
  • Copywriting

Tracking, analytics & reporting

  • GA4 & Google Tag Manager
  • Meta Pixel & Conversions API
  • Conversion tracking audits
  • Looker Studio dashboards
  • Monthly performance reports

Websites & landing pages

  • Landing pages built to convert
  • Website briefs & structure
  • SEO foundations
  • A/B testing

Brand & team building

  • Brand positioning & naming
  • Messaging frameworks
  • Hiring & onboarding marketers
  • Training in-house teams
  • Account audits & second opinions
Hands-on with Google AdsMetaTikTokLinkedInYouTubePinterestMicrosoft AdsGA4

From social media to pure performance

Each stage added a layer. That's why I look at a campaign as part of a business, not just a set of ads.

2010

Social media lead

Started out leading social media for big brands: content, community and the first paid social campaigns.

Next

Ecommerce

Moved into running ecommerce marketing, where every post and ad had to show up in sales.

Then

Performance marketing

Went fully into paid media, managing Google, Meta and LinkedIn budgets across many clients and agencies.

Today

Freelance & Krowten

Working directly with businesses as a freelancer, and running the agency Krowten for larger teams.

DEREE

The American College of GreeceStudies in Marketing and Human Resource Management, with a minor in Hospitality Management

How we'd work together

Clear steps, honest numbers, and you always own your ad accounts and data.

Step 1

Audit & listen

A free call, then a look at your accounts, site and tracking. You get a short list of what's working and what's leaking money.

Step 2

Plan

Goals, budget, channels and KPIs on one page. We agree on what success looks like before a euro is spent.

Step 3

Launch & optimise

Campaigns go live, I test and adjust weekly, and you get a plain-language report every month.

Some of the brands I've worked with

Hallesches Haus · Keller Kreuzberg · Hair Concept Berlin · Atisbar · AEK Arena Store · Cavo Zoe Seaside Hotel · Forest Suites · Pinakothiki · Prosilio · Famous Closet

Contact

Tell me about your business.

New brand, growing e-shop, or ad accounts that stopped performing: send a few lines and I'll reply within one working day.

Based between Berlin and Athens, working with clients in Berlin, Germany and across Europe. I work in English and Greek; my German is still growing.