Find outwhat to build.Then build it.

MSc in Business Information Management, then six years building products. You get the research and the working product from one person. User and product research, MVPs, web development, automation, AI. Freelance since 2020.

4Companies co-founded
1Exit
6Years freelancing
2CTO roles

Services

User & product research

Interviews with your users, analysis of the market around them. You get ranked problems and a go/no-go on what to build.

MVPs & prototypes

A working product in weeks. Built to test with real users and cheap to throw away.

Web development

Marketing sites and shops. Fast, indexable, cheap to run.

Automation & AI

Tool integrations, data pipelines, LLM features. Built to run unattended.

Selected work

Want it from them instead of me? I will put you in touch with any client on this list.

Who I am

Martin Ditzel

BSc General Management, then an MSc in Business Information Management at Rotterdam School of Management. Internships at N26, L’Oréal, Pernod Ricard and nu3. In 2019 I co-founded a consulting company and spent the earnings on Le Wagon’s full-stack bootcamp.

Since then: co-founder and CTO at Wonnda, co-founder and CPO at TripLegend, data architect at Pandata. My first company, a local food e-commerce business, sold in 2018.

You brief once. What comes back is a working product, not a deck.

Companies I co-founded

  • Wonnda Co-founder & CTO · 2022–
  • TripLegend Co-founder & CPO · 2020–21
  • d-brothers consulting Co-founder · 2019
  • Wurstzirkus Co-founder & CTO · sold 2018

Education

  • Rotterdam School of ManagementMSc Business Information Management · 2017–18
  • EBS UniversityBSc General Management · 2014–17
  • Tel Aviv UniversityExchange, MSc MIS · 2018–19
  • FGV EAESP, São PauloExchange · 2016
  • Le WagonFull-stack web development · 2019

Internships

  • N26Operations · Berlin, 2019
  • L’OréalBusiness intelligence · Düsseldorf, 2017
  • nu3Business development · Berlin, 2016
  • Pernod RicardBusiness intelligence · Ho Chi Minh City, 2015

Stack

Build & host

  • WordPress
  • Elementor
  • Shopify
  • Stripe
  • Bubble.io
  • Supabase
  • Vercel
  • GitHub
  • Cloudflare

AI & automation

  • Claude Code
  • OpenAI
  • n8n
  • Zapier
  • Airtable
  • Tavily

Research & data

  • Hotjar
  • Metabase
  • SQL
  • Mixpanel
  • Segment
  • Google Analytics

Growth & messaging

  • Google Ads
  • Search Console
  • RankMath
  • Resend
  • Twilio

Working together

Rate
From €125 per hour, net
Availability
One project at a time
Based in
Berlin, open to travel
References
From any client above

Tell me what you are building.

  1. 01 Describe what you need The project, and where you need help. Two sentences are enough.
  2. 02 I tell you if I can help A straight answer, and a referral if the answer is no.
  3. 03 We have a call We scope the work and agree a start date.