KAREN.
Private beta
Building in public
An AI content workspace for people who have something to say — but don't want to spend their entire day writing.
karenwriter.io
// Engineer · Product Builder · Writer
// Building things in Lisbon
Eugene Bevziuk.
I build software products and write about the engineering, decisions, and occasional disasters behind them.
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duotone · b/w
01 — CURRENTLY BUILDING
// the current chapter
02 – SELECTED WORK
Recent builds.
01
KAREN Writer
From private Telegram bot to an invite-only LinkedIn content operating system with Create Studio, planning, media, and publishing.
TypeScript
PostgreSQL
Claude API
Buffer
Cloudflare R2
1 MO
CONTENT PLAN
12
POSTS READY
AUTO
PUBLISHING
02
AI Media Engine
Multi-site WordPress architecture designed for 15+ independent publications. Integrated Claude & OpenAI APIs for automated content generation.
Laravel
React
WordPress
Claude API
GPT API
15+
Publications
Auto Posting
AI Editorial Loop
React
Frontend Layer
03
Lemon.io Platform
Automated marketing infrastructure that scaled landing page deployment from manual multi-day builds to an automated system generating 1,000+ pages via Airtable & Google Sheets sync.
WordPress
PHP
Airtable API
Google Sheets
1k+
Pages / Minutes
Airtable
Data Sync
Minutes
to Live
04
eToro Marketing
High-load marketing platform serving a global fintech audience across 17 languages. Engineered for extreme reliability, handling 500k+ daily visits without downtime.
WordPress
PHP
REST API
Splunk
17
Languages
500k
Daily Visits
High
Load Stability
03 – LATEST WRITING
Notes from the workbench.
- 01 Building KAREN: from Telegram bot to content operating system AI, Product Engineering Jul 30, 2026 9 min read
- 02 WordPress Malware Investigation & Security Remediation: A Real Client Case Performance, Security, WordPress Jul 10, 2026 5 min
- 03 Most agencies build WordPress sites. Few build WordPress systems. Here’s the difference. WordPress May 10, 2026 5 min
04 — ABOUT
I'm Eugene — a software engineer and product builder based in Portugal.
For the last 9+ years I've built publishing platforms, product infrastructure and web systems used across multiple markets.
These days I'm focused on AI products, developer tools and building more of my own things.