FULL-STACK ENGINEER · MOBILE · APPSEC RESEARCH
KORSUND — full-stack engineer, mobile developer, and application security researcher
I build mobile and web applications with a focus on secure, maintainable software — frontend, backend, cloud, and responsible vulnerability disclosure. I work the depths others don't reach.
What I focus on
Full-stack web development
End-to-end products — interface, API, data, and the deploy that keeps them up.
Mobile with Flutter & iOS
Native iOS and cross-platform Flutter apps, shipped to the App Store and Google Play.
Backend, databases & cloud
APIs, schemas, queues, and cloud deployment built to scale and stay maintainable.
Application security
Finding and responsibly disclosing real vulnerabilities through bug-bounty platforms.
The rig — tech stack
The hunt — security research
I research and report application security issues through responsible disclosure and bug-bounty platforms. Main interests: authentication, authorization, API security, business logic, data exposure, and secure software design.
Some records may be reserved or not yet have public details.
Surfaced work
Zolt
A native, GPU-rendered database client built end-to-end in Rust on GPUI — the framework behind Zed. Postgres, MySQL, SQLite, Redis, MongoDB. No Electron.
Trade Buddy
“See your edge. Every trading day.”
A trading journal that turns your trades into a color-coded PnL calendar with an AI coach and pro analytics — Forex, Crypto & Stocks. Screenshot logging from MetaTrader & TradingView, Sharpe & drawdown stats.
Poopwell
“Track your gut health in 5 seconds a day.”
A bowel & gut-health tracker — one-tap Bristol-scale logging, streak calendars, and food-trigger analysis that links meals to symptoms. Doctor-ready PDF export. Built for IBS, bloating & constipation — private, local, ad-free.
Send a signal into the deep.
A product to build, a disclosure to coordinate, or a problem worth diving on — I'm reachable.