Full-stack Developer

Szymon
Długołęcki

I build full-stack web apps with TypeScript, with a focus on clean and maintainable code.

Contact Tech Stack

01 - About

Full-stack developer focused on modern web applications. Passionate about observability, authentication, error handling, type safety and effectful programming. Fascinated by Effect, Alchemy (IaC) and TanStack Start.

02 - Tech Stack

My wheelhouse

TypeScript
React
TanStack
Effect
DrizzleORM
Tailwind
Alchemy
Cloudflare

Proficient with

SvelteKit
Node.js
PostgreSQL
Zod
Astro
Show all tools
Bun
Docker
Git
Linux
Biome
Vite
Vitest
pnpm

03 - Projects

Highlighted project

Effect Auth

A primitive-first, Effect-native authentication toolkit for modern TypeScript applications.

Cloudflare Inbox

An Effect-native email inbox built with TanStack Start, Cloudflare Workers, D1 and Durable Objects.

Guess D. Character

A daily One Piece character guessing game with multiple modes, persistent progress and a Cloudflare-native backend.

Learn Effect

An interactive learning platform for mastering Effect through structured lessons, visual models and knowledge checks.

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04 - Experience

Jan 2025-Present

Full-Stack Engineer

Creative Clicks B.V.

Building e-commerce storefronts, checkout flows and interstitials, plus APIs, backends, third-party store integrations and internal dashboards.

Nov 2023-Jan 2025

Full-Stack Engineer

ALDO S.K.A.

Worked on an e-commerce application. Also built two static websites for ALDO subcontractors: naprawaturbo.pl and interhome.com.pl.

2021-2022

Freelance Developer

Fiverr

Built custom Discord bots for clients.

05 - Education

2024-Present

M.Eng. Computer Science

University of Economics and Human Sciences in Warsaw

Second-cycle engineering master's programme in computer science. Expected graduation in 2026.

2021-2024

B.A. Economics

Kozminski University

Three-year bachelor's programme in economics, completed in 2024.

06 - Contact

Open to full-time roles, part-time roles and focused freelance projects.

szymon@szymondlugolecki.com github