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About

Data analyst and developer

I'm Vladislav Kovnerov, data analyst and developer behind kovnerov.com. I work as a data analyst at HEALBE and founded Traecta. I build dashboards, Telegram bots, and web products. I learn continuously and back it with certifications from Google and DataCamp.

Vladislav Kovnerov

The path here

For about ten years I was the one-person IT of a regional public hospital. I wired the network from nothing, ran a fleet of eighty computers and servers.

While still there I started automating. A pipeline in Python and Airflow pulled and analyzed the hospital's metrics for an official regional healthcare rating. Where there was no data-warehouse access, I scraped with Selenium. Dashboards landed in Google Sheets, alerts in Telegram. The code is public at github.com/DragonSigh/pokb-airflow.

The switch came from a webinar that predicted the bitcoin price in about ten lines of Python. It looked simple enough to try. I took one Data Science in Medicine course and found I liked analytics and visualization more than the heavy-math side. DataCamp, Google, and GeekBrains filled in the rest.

Since March 2024 I've been a data analyst at HEALBE, on the Customer Experience team: retention, churn, NPS. In parallel I founded Traecta, an app that turns scattered learning into a clear roadmap.

  1. ~2014–2024

    IT of a regional public hospital (Klimovsk → Podolsk Regional Clinical), team of two or three

  2. 2024–03

    Data analyst at HEALBE, Customer Experience (retention, churn, NPS)

  3. 2026–

    Founder of Traecta (learning-roadmap app, MVP ready)

What I do

I work as an analyst and as a developer. On the analyst side: dashboards, retention and churn, SQL, Python, and the boring discipline of checking whether a number is real before acting on it. On the developer side: websites and Telegram bots I build and ship. Earlier I took websites by word of mouth and sold programs, mockups, and stock photos on Envato under the name DragonSigh.

Tools I reach for

Analysis and data

    SQLPostgreSQLPythonpandasNumPystatistics and A/B testingETLAirflowBigQuery

Dashboards and reporting

    Power BITableauYandex DataLensLooker StudioGoogle SheetsExcel

Development

    TypeScriptAstroReactTelegram Bot APIScrapySeleniumWordPressLinuxGit

AI and automation

    Claude CodeCodexAntigravityGitHub CopilotGeminiDifyn8nMake

Credentials

Have a project or a problem? Let’s talk.

Work with me