07/07/2025 updated
100 % available
Sr Data / DB Engineer
Lipinki (gmina Warlubie), Poland
Poland
Master - Lviv National Polytechnic UniversityI have nearly a decade of experience as a DB developer and over 7 years of experience as Data Engineer; an understanding of relational database concepts, estimation, implementation planning, development, integration, and deployment. With expertise in Python, Clouds, REST API, SQL, PL/SQL, Transact-SQL, Oracle, SAP, ML Ops and Unix, automated testing, I'm ready to tackle my next big challenge. The most amazing thing I have coded is a risk management system for internet banking based on Oracle database and REST API integration based on Flask and Python.
Though I'm located in Europe, I'm an owl type of person and can to work according to EST working hours if needed.
English: Advanced
German: Elementary A1
Polish: Second native
Though I'm located in Europe, I'm an owl type of person and can to work according to EST working hours if needed.
English: Advanced
German: Elementary A1
Polish: Second native
Languages
GermanBasic knowledgeEnglishFluentPolishNative speakerUkrainianNative speaker
Project history
Development of the Predictive Sales Software, including but not limited to: DB Engineering, API Development and integrating with other APIs and services, Python / Flask / bash back-end development, JS / Jinja2 / CSS / AJAX / jquery / html front-end development, technical assistance in customer projects.
Cloud connector development, fetching data from different sources, data mapping, uploading into REST API.
Creating wrapper application based on Python PyQt5 that users can run on their PC or laptop (Windows and Linux versions), it creates an SSH tunnel and opens the web app behind ssh in its window automatically.
Writing unit tests (pytest).
Assisting in sales process, creating ssh tunnel, adjusting key-based authentication, preparing mock data, writing documentation, etc.
Python, Flask, Django, SQLAlchemy, pandas, sshtunnel, PyQt5, SQL Server, MySQL, Oracle, SAP/Hana, GNU/Linux, github, CI/CD (github actions), Azure, REST API, VMware, virtualbox, docker, JS, Jinja2, CSS, AJAX, jquery, html
Preparation of the demo video for customers (GNU/Linux, Simplescreenrecorder, FFmpeg, Gnome-Subtitles, Mkvtoolnix)
Communication with security vendors about false-positive antivirus alerts on our apps.
Cloud connector development, fetching data from different sources, data mapping, uploading into REST API.
Creating wrapper application based on Python PyQt5 that users can run on their PC or laptop (Windows and Linux versions), it creates an SSH tunnel and opens the web app behind ssh in its window automatically.
Writing unit tests (pytest).
Assisting in sales process, creating ssh tunnel, adjusting key-based authentication, preparing mock data, writing documentation, etc.
Python, Flask, Django, SQLAlchemy, pandas, sshtunnel, PyQt5, SQL Server, MySQL, Oracle, SAP/Hana, GNU/Linux, github, CI/CD (github actions), Azure, REST API, VMware, virtualbox, docker, JS, Jinja2, CSS, AJAX, jquery, html
Preparation of the demo video for customers (GNU/Linux, Simplescreenrecorder, FFmpeg, Gnome-Subtitles, Mkvtoolnix)
Communication with security vendors about false-positive antivirus alerts on our apps.
Freelance temporary Data Engineering project for the local community; Python, SQL, Javascript basics, Unix, unstructured documents processing, fintech
Short-term project (migration), Extended Build team. Cloud Management, DB and data pipelines migration; R&D; monitoring and troubleshooting, DB Ops; Azure, MySQL, SQLite, advanced GNU Linux related stuff, bash, Python, MONyog, Zabbix, Pingdom, percona-toolkit, solarwinds (confio) db monitoring, fio db tests, db linux servers validation.