EZ.dev
Full-Stack Developer · Wrocław, Poland

Elizaveta Zaitseva

I build web products end-to-end — from spec to deployment — with React / TypeScript on the front and Python where the math gets heavy.

Experience
4+ years commercial
Focus
Frontend · Full-Stack
01

About

Full-stack developer with a bias toward precise, well-architected front ends.

Four-plus years of commercial experience, specializing in React / TypeScript and Python. I've shipped inside an international English-speaking team in Switzerland and delivered solo, end-to-end projects for B2B clients — owning everything from the initial specification through to deployment.

Currently studying at Novosibirsk State University (Faculty of Information Technology), where I keep sharpening modern architectural practices and emerging development technologies.

4+
Years commercial
CH
Intl. team experience
E2E
Solo delivery
02

Experience

2022 — 2025 Glarus, Switzerland

ProEngineers AG

Software Developer
  • Developed mathematical plugins for the Allplan architectural software in Python — in a team and independently — optimizing calculation performance for end users.
  • Contributed to team development of an ML application for comparing, analyzing, and visualizing large datasets.
  • Worked in an international English-speaking team; took part in code reviews and architectural design.
2021 — Present Freelance · B2B

Self-Employed

Full-Stack Developer
  • End-to-end web application and website delivery for B2B clients — from specification design to deployment.
  • Built a client portal for an architectural-lighting manufacturer: authentication, product catalog, and order history.
  • Configured Joomla sites: multilingual support, DNS, SSL, SEO audits, and hosting.
  • Wrote Python scripts for automated image processing (OpenCV, PIL).
03

Selected Work

P.01
Computational · CAD

Allplan Plugins

Team and individual development of mathematical plugins for the Allplan architectural software. Implemented core calculation algorithms that measurably improved end-user performance.

PythonAlgorithmsPerformance
P.02
Machine Learning · Data

ML Data Analysis App

A tool for loading, comparing, analyzing, and visualizing large datasets, with interactive charts and result export. Built collaboratively within the team.

PythonMLData Viz
P.03
Solo · Deployed

CO2 Technical Calculator

Web application for calculating CO₂ output with results visualization. Solo project — responsive design, shipped to production.

SvelteJavaScriptResponsive
P.04
Solo · Full-Stack

Document Registry

Web platform for a business-practices document reseller: filterable catalog, document management, authorization, and payment processing. Delivered solo, front to back.

ReactTypeScriptPayments
P.05
Solo · Web App

Language-Learning Reader

A reader app for studying languages on your own texts, with a built-in dictionary and grammar lookup. Texts sync to an online registry, so you can upload your own and pull others down across devices.

ReactTypeScriptDexie.jsREST API
P.06
Client · Full-Stack

Client Portal & CMS

A client portal bolted onto an existing website, backed by an admin side that lets the owner edit site content and manage each client's terms and conditions without touching code.

ReactTypeScriptNode.jsAdmin
04

Stack

Frontend
ReactTypeScriptJavaScriptSvelteHTMLCSSViteZustandDexie.jsTailwind CSSBootstrap
Testing
VitestTesting Library
Backend
Node.js (Express)PythonJava
Databases
PostgreSQLMySQLIndexedDB
Mobile development
React NativeExpo
Tools
GitREST APIOpenCVPILFigma
05

Get in touch

Open to full-stack & frontend roles.

elizzaittseva@gmail.com
LocationWrocław, Poland
Phone+48 575 255 596
Elizaveta Zaitseva — Full-Stack Developer EN · RU (native) · PL