Joosep A. Laats — Tallinn, Estonia
I design, build & grow things on the internet.
I build websites and stores, work with data, and look after the servers behind them.
Status: open for new projects
Fig. 1 — the developer
Selected work
Things I've built
Client work, my own projects, and a few experiments. The full list is on the work page.
ArbAnalyst
Trading platformAn arbitrage scanner and directory for sports bettors, built from the ground up.
JEF Europe
Membership platformSite and membership platform for a European NGO with 10,000+ members.
AlpaTrade
AI trading suiteA trading research and backtesting platform with AI built in.
PolyTrade
Polymarket toolResearch, backtesting, and paper trading for Polymarket prediction markets.
What I do
Four verbs
01
Design
Websites and interfaces that are clean, quick, and pleasant to use. I design them and build them myself, so nothing gets lost in a hand-off.
02
Build
Shopify themes, Next.js sites, WordPress builds, and the integrations that hold them together.
03
Analyze
Pipelines, dashboards, and analysis in SQL, R, and Python. I like knowing which numbers to trust.
04
Advise
IT consulting without the theatre. I look at your setup, tell you what I'd change, and put it in writing.
Ongoing ventures
Things I'm building
ArbAnalyst
An arbitrage scanner and directory for sports bettors. Live price gaps, reviews, and tools — 5k+ monthly visitors, mostly from search.
Founder · 5k+ monthly
Winfluential
A general web agency and IT consultancy: web development, data analysis, IT infrastructure and security, software development, and optimisation work (SEO, GEO, AI integration).
Founder · Active
Valence Labs
Research, analysis, testing, and strategy tools for financial markets in one suite.
Build · In progress
About
Code meets commerce
I started as a developer, but quickly realized that clean code isn't enough — you need a strategy. Today my work combines strategic development and data analysis.
Based in Tallinn, I help companies build products that actually work. Whether it's a custom Shopify store or a data dashboard, I focus on systems that are easy to manage and built to scale.
(Not written by AI, I just really like em dashes.)
- Location
- Tallinn, EE
- Focus
- Web, data & IT
- Status
- Taking projects
Toolbox
The stack I reach for
Build
- TypeScript / JavaScript
- Next.js
- Tailwind CSS
- Shopify / Liquid
- WordPress
- Go
Automate
- Python
- AI integration
- Agentic workflows
- Web scraping
Analyze
- SQL
- R
- PostHog
- Quantitative modeling
- EV+ calculations
Grow
- SEO
- GEO (AI search)
- Market analysis
- E-commerce architecture
Run
- Linux
- Server management
- Database migrations
- CRM