Ruslan Barysiuk

Senior Flutter Developer · iOS & Android (Swift, Kotlin)

From estimates and roadmap to store releases · ready to lead mobile development

t.me/art_munem borisukrusaln12345@gmail.com +66 80 285 5847

github.com/munem91 LinkedIn Bangkok, GMT+7 · remote, full-time

Portfolio
on GitHub

Senior Flutter developer with 5 years of commercial experience. Specializing in Flutter with deep platform integration: real-time video (WebRTC, LiveKit), on-device ML and computer vision, camera, wearable health data, subscriptions. Business-minded: I uncover needs, estimate in hours, run the roadmap and own the outcome.

5 years

in commercial development

6 apps

on the App Store and Google Play

1.5 months

from audit to release of a stalled project

Sales + IT

5 years in sales and e-commerce

Technical skills

Swift and Kotlin: native billing, Platform Channels, a watchOS prototype in SwiftUI
Camera, video, ML and health: native camera SDKs, LiveKit, ONNX, OpenCV, HealthKit, Health Connect
Subscriptions: StoreKit 2, Play Billing, RevenueCat; store review and rejection fixes; Crashlytics, Adjust
Clean Architecture, BLoC, TDD; multiple apps from a single codebase via configs

Collaboration

Pair with backend engineers: agree on API contracts and close integrations fast
Speak up when the backend breaks: report it with logs and expected behavior
Give specific, timely feedback to designers, backend engineers and clients
Run demos and status updates directly with clients, making the case in business terms

Product & management

Run discovery: uncover client needs, formalize requirements and user stories
Estimate in hours, plan roadmaps with milestones and priorities; ship MVPs on time
Before IT, ran an online store and an offline business: negotiations, small teams

Process & delivery

Scrum and Kanban: backlog, sprints, retros; Jira, Linear, Trello, Hubstaff time tracking
Release cycle: CI/CD, code signing, TestFlight, code handoff to clients; audits of inherited code
AI agents in daily work for 1.5 years; removed 2,000+ unnecessary widget rebuilds via Dart MCP