ÜMİT MUTLU
FLUTTER DEVELOPER
Professional Summary
Flutter developer with 5+ years building and shipping production iOS, Android and tablet apps across AI, social and utility products. Strong in real-time and media features — video/audio calling (Agora, WebRTC), gRPC/Protobuf data streaming and on-device/cloud AI integration (Hugging Face models). Sets up mobile attribution and analytics end to end (Mixpanel, Amplitude, Adjust, AppsFlyer, Singular), defines KPIs and turns marketing and product measurement needs into reliable in-app tracking and reporting — contributing on both the engineering and the user-acquisition side. Backed by a Management Information Systems background that bridges product, marketing and engineering. Upper-intermediate English (B2).
Technical Skills
Languages: Dart, Swift, JavaScript / Node.js, SQL
Mobile & Cross-Platform: Flutter (iOS, Android, tablet), state management (Bloc, Cubit, Riverpod, Provider), native interop via method channels, background location services, App Store / Play Store releases
Real-Time, Media & Comms: Agora SDK, WebRTC, gRPC (streaming), Protobuf, WebSocket, FFmpeg, OpenCV, ExoPlayer, media codec handling
AI / ML Integration: Hugging Face model integration, AI-assisted development, prompt engineering
Analytics & Attribution (MMP): Mixpanel, Amplitude, AppMetrica, Adjust, AppsFlyer, Singular, Kochava; Meta & TikTok ads tracking; funnel, retention & KPI analysis and reporting
Monetization & Payments: Adapty, RevenueCat, Stripe, Apple Pay, Google Pay, Iyzico, Google AdMob, in-app purchases
Storage & Backend: Firebase (Crashlytics, Realtime DB), Realm, Hive, Floor, SQFlite; REST & gRPC APIs, Postman, Swagger
Tooling & Practices: Git, GitHub, Bitbucket, CI/CD, Jira, Confluence, Notion; Agile / Scrum / Kanban; technical specs & API documentation
Professional Experience
Flutter Developer & Technical Analyst — Ancienda Tech
2024 – 2026
Istanbul, Turkey
- Built and shipped production AI apps — Slayy (iOS · Android), Deco AI (iOS) and Mankai (iOS · Android) — owning Flutter delivery from prototype to store release.
- Worked on both the build and the growth side: implemented MMP attribution and in-app event tracking, defined KPIs, and produced the reports the marketing / user-acquisition team used to see which ad channels and creatives drove installs, retention and revenue.
- Ran funnel and drop-off analysis and reworked UI/UX flows (15–40% daily-retention uplift), and migrated monetization to Adapty's Paywall Builder (+50% purchase conversion).
- Integrated a Hugging Face AI model into Slayy's face-swap feature for higher-quality, scalable image generation.
Flutter Developer & Systems Analyst — Anibal Software
2023 – 2024
Istanbul, Turkey
- Built Quick Go, a location-intelligence app that logs GPS data in the background even in a terminated state, and defined its data model.
- Integrated a Python-based recommendation algorithm to surface critical locations along the user's route.
Flutter Developer & Product Analyst — Appnation
2022 – 2023
Istanbul, Turkey
- Built Baby Monitor (iOS) with Agora SDK for live video calling and gRPC for real-time data transfer, cutting latency by 30% and increasing retention by 25%.
- Reduced crash rate by 35% by refining error logging with Firebase Crashlytics.
- Implemented monetization (Google AdMob and in-app purchases), increasing revenue by 40%.
- Delivered Arch AI (iOS · Android) (AI image generation) across iPad, iOS and Android with EXIF-based prompt optimization and reverse-engineering protection for API keys, and built Ad Blocker, an iOS Safari content-blocker extension in native Swift.
Flutter Developer — Eralpsoftware
2021 – 2022
Istanbul, Turkey
- Delivered three Flutter products: Spinigo (location-based reservations with campaign push notifications), Eve Söyle (two-sided services marketplace with Iyzico payments) and Digitastic (photo-to-PDF using native libraries via method channels).
Flutter Developer — Jangle Teknoloji A.Ş.
2020 – 2021
Istanbul, Turkey
- Built a real-time social platform using WebSocket and Firebase, with customizable notification sounds and user-to-user engagement features.
IT Systems & Security (Sergeant) — Turkish Armed Forces
2014 – 2020
Turkey
- Six years in cryptology, server networking, system administration and IT security — managing sensitive systems and implementing security solutions.
Personal Projects & Portfolio
- Independently published iOS apps (concept to release): Volume Booster (iOS), WearCaster (iOS), TCG Card Value Scanner (iOS) and Deco AI – Room Interior Design (iOS).
- Additional self-initiated apps: Home AI and Weather Combine (Android).
Full portfolio & source: github.com/umitmutluu · apptaff.com
Education
Anadolu University — B.Sc., Management Information Systems (MIS)
2025
Turgut Özal University — Accounting & Finance
Languages
Turkish — Native · English — B2 (Upper-Intermediate)