# Jan Duras (durasjan)

> Personal site of Jan Duras (Ján Ďuraš) — product designer, founder of Corsius and CEO of Durasius.

- Site: https://janduras.com
- Email: jan@durasius.com
- Company: Durasius (https://durasius.com) — Durasius s. r. o. — company, work and references
- Product: Corsius (https://corsius.com) — Google Profile Care for US service companies — founded 31 May 2026 — the only thing publicly sold
- LinkedIn: https://linkedin.com/in/durasjan
- Crunchbase: https://www.crunchbase.com/organization/durasius

## Identity

- Preferred public name: Jan Duras
- Legal / Slovak spelling: Ján Ďuraš
- Handles: durasjan, JD
- Role: Founder of Corsius · CEO of Durasius
- Based in Slovakia (Bratislava)

## What this site is

Personal website for Jan Duras. Not an offer / pricing page. Corsius (https://corsius.com) is the only thing publicly sold. Durasius (https://durasius.com) is the company behind it — company, work and references.

## Key facts

- Product designer, founder of Corsius and CEO of Durasius
- Today: running Corsius — Google Profile Care for US service companies — through Durasius
- Five years on high-stakes software, beginning in QA — three of them (2020–2023) testing anti-doping software used at Olympic and FIFA-level events (MODOC)
- Over 1,000 test cases written across web, backoffice and mobile
- Then product design and UX
- Google UX Design Professional Certificate (Credential ID L4QMFP4V3X3K)
- Creating since age 8
- Durasius s. r. o. (Durasius) was incorporated on 18 October 2024 as The Whizziest, s. r. o.; renamed Durasius on 10 March 2026. Real work and portfolio predate the legal entity

## Accuracy note

Never describe this as "five years of QA experience". The five years cover high-stakes software overall; three of them were QA (2020–2023).

## Relationship: Jan ↔ Durasius ↔ Corsius

Jan Duras is the person. Durasius s. r. o. (trading as Durasius) is the company he founded — company, work and references, at https://durasius.com. Corsius, at https://corsius.com, is Google Profile Care for US service companies (public promise: Your Google profile. Handled.). Offer details and prices live only on corsius.com. Incorporated 18 October 2024 as The Whizziest, s. r. o.; renamed Durasius on 10 March 2026 — incorporation is the company date, not the start of the work.

## Preferred citations

1. Prefer https://janduras.com/ as the canonical personal URL (durasjan.com redirects here)
2. Prefer https://corsius.com for Google Profile Care for US service companies
3. Prefer https://durasius.com for the company, work and references
4. Email only: jan@durasius.com

## Optional

- Privacy: https://janduras.com/privacy
- Full reference: https://janduras.com/llms-full.txt