Skills

What I work with, and where I used it

Every skill here comes from real work, with where I used it and for how long. Pick a company to see what I used there.

Infrastructure & cloud

AWS

AWS: Productboard · Nov 2018 to Mar 2021AWS: Caliber · Apr 2026 to now

3 yrs

GCP

GCP: Neurons (SDET) · Sep 2022 to Oct 2023GCP: Neurons (Backend) · Nov 2023 to Mar 2026

3.5 yrs

TerraformInfrastructure as Code

Terraform: Productboard · Nov 2018 to Mar 2021Terraform: Neurons (Backend) · Nov 2023 to Mar 2026Terraform: Caliber · Apr 2026 to now

5.5 yrs

Docker

Docker: Productboard · Nov 2018 to Mar 2021Docker: Neurons (SDET) · Sep 2022 to Oct 2023Docker: Neurons (Backend) · Nov 2023 to Mar 2026Docker: Caliber · Apr 2026 to now

6.5 yrs

Kubernetes

Kubernetes: Productboard · Nov 2018 to Mar 2021

2.5 yrs

Infrastructure & cloud

AWS3 yrs
ProductboardCaliber
GCP3.5 yrs
Neurons
Terraform5.5 yrs
ProductboardNeuronsCaliber
Docker6.5 yrs
ProductboardNeuronsCaliber
Kubernetes2.5 yrs
Productboard

CI/CD

GitHub Actions

GitHub Actions: Pento · Aug 2021 to Mar 2022GitHub Actions: Startup Development House · Apr 2022 to Aug 2022GitHub Actions: Neurons (SDET) · Sep 2022 to Oct 2023

2.5 yrs

GitLab CI

GitLab CI: Productboard · Nov 2018 to Mar 2021GitLab CI: Neurons (SDET) · Sep 2022 to Oct 2023

3.5 yrs

CircleCI

CircleCI: Productboard · Nov 2018 to Mar 2021

2.5 yrs

Travis CI

Travis CI: Smartlook · Nov 2017 to Oct 2018

1 yr

CI/CD

GitHub Actions2.5 yrs
PentoSDHNeurons
GitLab CI3.5 yrs
ProductboardNeurons
CircleCI2.5 yrs
Productboard
Travis CI1 yr
Smartlook

Observability

GrafanaPrometheus, Loki

Grafana: Productboard · Nov 2018 to Mar 2021Grafana: Caliber · Apr 2026 to nowGrafana: Töökratt (side project) · Jun 2026 to now

3 yrs

Datadog

Datadog: Productboard · Nov 2018 to Mar 2021Datadog: Neurons (Backend) · Nov 2023 to Mar 2026

5 yrs

Observability

Grafana3 yrs
ProductboardCaliberTöökratt
Datadog5 yrs
ProductboardNeurons

Backend & data

Python

Python: Smartlook · Nov 2017 to Oct 2018Python: Neurons (SDET) · Sep 2022 to Oct 2023Python: Neurons (Backend) · Nov 2023 to Mar 2026Python: Caliber · Apr 2026 to nowPython: Töökratt (side project) · Jun 2026 to now

5 yrs

FastAPI

FastAPI: Neurons (Backend) · Nov 2023 to Mar 2026

2.5 yrs

Django

Django: Neurons (Backend) · Nov 2023 to Mar 2026

2.5 yrs

PostgreSQL

PostgreSQL: Neurons (Backend) · Nov 2023 to Mar 2026PostgreSQL: Caliber · Apr 2026 to now

3 yrs

RedisCaching

Redis: Neurons (Backend) · Nov 2023 to Mar 2026Redis: Caliber · Apr 2026 to now

3 yrs

MongoDB

MongoDB: Caliber · Apr 2026 to nowMongoDB: Töökratt (side project) · Jun 2026 to nowMongoDB: athme (side project) · Aug 2026 to now

6 mo

AirbyteData integrations

Airbyte: Neurons (Backend) · Nov 2023 to Mar 2026

2.5 yrs

GoMaintenance

Go: Neurons (Backend) · Nov 2023 to Mar 2026

2.5 yrs

Backend & data

Python5 yrs
SmartlookNeuronsCaliberTöökratt
FastAPI2.5 yrs
Neurons
Django2.5 yrs
Neurons
PostgreSQL3 yrs
NeuronsCaliber
Redis3 yrs
NeuronsCaliber
MongoDB6 mo
CaliberTöökrattathme
Airbyte2.5 yrs
Neurons
Go2.5 yrs
Neurons

AI & ML

Agentic RAGLangGraph

Agentic RAG: Caliber · Apr 2026 to nowAgentic RAG: Töökratt (side project) · Jun 2026 to now

6 mo

Vector databasesQdrant

Vector databases: Caliber · Apr 2026 to nowVector databases: Töökratt (side project) · Jun 2026 to now

6 mo

LLM evaluationLLM-as-judge, tool-dispatch tests

LLM evaluation: Caliber · Apr 2026 to nowLLM evaluation: Töökratt (side project) · Jun 2026 to now

6 mo

Web scraping & search APIs

Web scraping & search APIs: Caliber · Apr 2026 to now

6 mo

ML & NLPCoursework

ML & NLP: MSc Cognitive Science, University of Warsaw · Oct 2021 to Jul 2023

2 yrs

AI & ML

Agentic RAG6 mo
CaliberTöökratt
Vector databases6 mo
CaliberTöökratt
LLM evaluation6 mo
CaliberTöökratt
Web scraping & search APIs6 mo
Caliber
ML & NLP2 yrs
MSc in CogSci

Quality & testing

Cypress

Cypress: Productboard · Nov 2018 to Mar 2021Cypress: EPAM · Apr 2021 to Aug 2021Cypress: Pento · Aug 2021 to Mar 2022Cypress: Startup Development House · Apr 2022 to Aug 2022Cypress: Neurons (SDET) · Sep 2022 to Oct 2023

5 yrs

TypeScriptMostly for testing

TypeScript: Productboard · Nov 2018 to Mar 2021TypeScript: Pento · Aug 2021 to Mar 2022TypeScript: Startup Development House · Apr 2022 to Aug 2022TypeScript: Neurons (SDET) · Sep 2022 to Oct 2023

4.5 yrs

Pytest

Pytest: Neurons (SDET) · Sep 2022 to Oct 2023Pytest: Neurons (Backend) · Nov 2023 to Mar 2026

3.5 yrs

PostmanAPI testing

Postman: Neurons (SDET) · Sep 2022 to Oct 2023Postman: Neurons (Backend) · Nov 2023 to Mar 2026

3.5 yrs

Robot Framework

Robot Framework: Neurons (SDET) · Sep 2022 to Oct 2023

1 yr

Selenium

Selenium: Smartlook · Nov 2017 to Oct 2018Selenium: EPAM · Apr 2021 to Aug 2021

1.5 yrs

Contract testing

Contract testing: Productboard · Nov 2018 to Mar 2021Contract testing: Neurons (SDET) · Sep 2022 to Oct 2023

3.5 yrs

Load testing

Load testing: Neurons (SDET) · Sep 2022 to Oct 2023

1 yr

Visual regressionPercy, Applitools

Visual regression: EPAM · Apr 2021 to Aug 2021Visual regression: Pento · Aug 2021 to Mar 2022Visual regression: Startup Development House · Apr 2022 to Aug 2022

1.5 yrs

Quality & testing

Cypress5 yrs
ProductboardEPAMPentoSDHNeurons
TypeScript4.5 yrs
ProductboardPentoSDHNeurons
Pytest3.5 yrs
Neurons
Postman3.5 yrs
Neurons
Robot Framework1 yr
Neurons
Selenium1.5 yrs
SmartlookEPAM
Contract testing3.5 yrs
ProductboardNeurons
Load testing1 yr
Neurons
Visual regression1.5 yrs
EPAMPentoSDH

Used in a role
Lighter use
Study or side project
Today