Backend & desktop · since 2017
C# & .NET
WPF desktop software, web portals and a broker platform
Senior Full-Stack Developer
Artem
Kononenko
Backend, frontend and desktop across fintech, mining, biotech and legal-tech
Skills
Core stack first, the rest around it
Frontend · since 2018
Angular
AngularJS on a court-system portal, Angular on a broker onboarding portal
Data
SQL
MSSQL and MySQL behind the portals and desktop software
AI
AI-assisted development
Daily development with Claude, Codex and omp, plus LLM integrations
Cloud & hosting
IDEs
Workflow
Experience
Nine years, three companies
Aug 2019 — now
Senior Full-Stack Developer
Sytoss
Full ownership of a broker onboarding portal for years, end to end: client data collection, brokerage account opening, the admin panel and the complex background processing behind it.
Now the technical lead of a small team: task analysis and technical decisions, code review, technical debt (technology upgrades, security fixes), production-critical functionality and deployments.
Mar 2019 — Aug 2019
Middle .NET Developer
Sight Power Inc
Desktop development for Digital Mine, a spatial information system for mining companies.
Nov 2017 — Feb 2019
Junior .NET Developer
Tesseris Pro
WPF desktop software for analyzing data from laboratory instruments in biotech, and web development for an online portal of a US court system, where people manage cases, upload documents and file petitions.
Projects
Side projects and open source
Open source · Published
Video Tuner Pro
A browser extension for any video on the web: playback speed that is remembered per channel, site or globally, live-stream sync to the live edge, audio compression and a focused viewer mode. Cross-browser Manifest V3, 10 languages, no accounts or tracking.
Chrome Web Store Firefox Add-ons GitHub
Product · Coming in 2026
Meetka
A map of interest-based events: find people nearby for football, board games, a walk or a coffee, or organise your own event and recurring series. iOS, Android and web. Launching this year.
About
Works on my machine
I like figuring out why things break and making them work
Education
Bachelor of Software Engineering
National Aerospace University «Kharkiv Aviation Institute», 2014–2018
Languages
UA · EN
Ukrainian — native. English — technical, reading and writing.
Let’s talk
Not looking for a new role right now. Questions, ideas or just a hello — feel free to write