Charlotte Hetzler
Freelance product engineer — full-stack development plus the product judgment that usually sits in a separate role. Website not available.
About
Freelance product engineer — full-stack development plus the
product judgment that usually sits in a separate role.
Website not available. Sign in: https://www.twine.net/signup
Seven years building for startups across Europe and Australia.
I work with founders on full-stack apps, MVPs, and Webflow
sites, from first-call discovery through shipping and handoff.
Stack: TypeScript, Node.js, React, React Native, Webflow.
Background in business before engineering — MBA, seven
years of shipping. The combination is the point: I can talk
through a product call and write the code in the same
conversation, instead of passing the brief between three
people.
Originally from Berlin, currently based in Australia, working
across European time zones.
Past clients include CEEZER (carbon credit marketplace, built
ground-up), Porsche Digital Campus, LAP Coffee (mobile rewards
app), Parametrix (international Webflow rebuild), n8n,
Conlio, CarOnSale, and Le Wagon.
- 11 years' experience
- Joined April 2026
Languages
- EnglishFluent
- GermanFluent
Industry experience
- Software & Internet
- Transportation & Logistics
- Consumer Goods
- Financial Services
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Work experience· 5 roles
Founding engineer at a B2B carbon credit marketplace. Built the core platform from the ground up alongside the founding team — backend services, marketplace logic, and the buyer-facing application. Stack: TypeScript, Node.js, React, PostgreSQL.
Designed and built microservice architecture for automating core business processes at a fintech lending platform. Continuous development of client-facing applications and the company's marketing website. Stack: TypeScript, Node.js, React, GraphQL, PostgreSQL.
Building full-stack platforms, MVPs, and Webflow sites for startups across Europe and Australia. I work with founders who want one person who can talk through the product call and ship the code. Stack: TypeScript, Node.js, React, React Native, Webflow. AI tooling integrated where it earns its place. Selected clients: CEEZER (carbon credit marketplace, built ground-up), Porsche Digital Campus, LAP Coffee (mobile rewards app, replacing Apple Wallet at scale), Parametrix (insurance tech, international Webflow rebuild), n8n, Conlio (freight invoicing automation), CarOnSale, Haufe Fachakademie, Le Wagon
Education
Two-year international MBA focused on innovation, entrepreneurship, and product strategy. Cohort drawn from global tech, finance, and consulting backgrounds. I did the program while continuing to work as a freelance developer — the combination of the two is what I now build my work around.
Intensive nine-week, product-driven bootcamp covering Ruby on Rails, JavaScript, HTML, CSS, SQL, and full-stack application development. Final project: built and shipped a working web app in two weeks.
Bachelor's degree in Business Administration with focus on finance, accounting, and quantitative methods. Worked part-time at KPMG throughout most of the program.
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