Blue pill
Ship it and hope.
Merge the happy path, watch the store rating drift down, and file the crash reports under noise.
/dev/tty0
Furkan Sezer Ariç
Senior Software Developer — React · React Native · .NET
I build web and mobile products end to end — the interface, the services behind it, and the performance work that decides whether either one survives contact with real users.
// bullet time
Everything ships broken first.
// incoming
Features are the easy part. What decides whether a product survives is how it behaves on a three-year-old phone, on a train, with 3% battery and a flaky connection. That is the work I actually do.
// resolved
Dodging these is the job. Not a side quest.
// the choice
Two ways to build.
Red pill
See the whole system.
Profile the render, read the native trace, reproduce it on the cheapest device you own, then fix the cause instead of the symptom.
// whoami
I'm a senior software developer in İstanbul. I work across React, React Native and Vue.js on the front, and C# / ASP.NET Core on the back — API design, business logic and the data layer included.
Most of what I've shipped lives where the hard parts are: realtime features, payment and subscription flows, map-based services, and the enterprise admin panels nobody demos but everybody depends on. For three years that meant health technology, building clinical products used across twelve countries.
I care about the unglamorous half — frame timing, cold start, memory, what happens when the network isn't there — because that is the half users actually feel. And I own the whole line: from the idea to the thing running in production.
// arsenal
- Frontend
- React.jsReact Native (CLI & Expo)Vue.jsTypeScriptJavaScriptComponent ArchitectureResponsive Design
- State & Data Flow
- ZustandRedux ToolkitRedux-SagaContext APIREST APISocket.ioSignalR
- Backend
- C#.NET / ASP.NET CoreRESTful APIService & business logic
- Data
- MsSQLRedisElasticsearchSQL / NoSQL query optimisation
- Mobile
- iOS / AndroidPush NotificationsMapsIn-App PurchaseFirebase Auth / Firestore / FCMReanimatedSkia
- Tooling
- GitHubBitbucketJiraPostmanSentryAdjustCI/CDUnit Testing
// experience
Six years, shipping.
Full Stack Developer · Aren Yazılım
08/2025 — present
- Responsive, performance-focused web interfaces in React and Vue.js.
- RESTful APIs and business services in .NET, wiring frontend to backend end to end.
- Database, CI/CD, testing and performance work to keep product quality sustainable.
Senior React Native Developer · Massive Bio
08/2022 — 07/2025
- Built scalable React Native products in health technology and took an active role in architectural decisions.
- Alongside mobile, handled API integration, performance and error management on web projects.
- Turned complex clinical and research workflows into interfaces people could move through quickly.
Middle React Native Developer · Elephant Apps
09/2021 — 08/2022
- Cross-platform mobile apps and web interfaces; API integration and reusable components.
- Performance improvements and product stability work.
Full Stack Developer · Freelance
12/2019 — 09/2021
- Ran web and mobile projects end to end: UI/UX, frontend, API, database and go-live.
- Performance optimisation and critical bug fixes across a range of clients.
React Native Developer / Software Developer Intern · Bigg Plus Group of Companies
07/2019 — 12/2019
- Corporate React Native applications, third-party integrations and performance work.
- Frontend-to-backend integration, technical planning and code quality.
// background
- Anadolu Üniversitesi
- BSc, Management Information Systems
- Nişantaşı Üniversitesi
- Associate Degree, Computer Programming
- English
- B2 — professional working proficiency
// case study
MyGarage Global
A social and commerce platform for car and motorcycle owners: a digital garage for your vehicles, a feed and forum for the community, maintenance and expense tracking, drive recording, realtime messaging, map-based service discovery and a marketplace for shops.
React Native · iOS & Android
392
commits
2
platforms shipped
60fps
scroll target held
62
E2E flows automated
01Performance under load
Gated 230 console calls behind __DEV__, moved serialisation out of render bodies, and killed idle re-renders that were driving 60fps redraws on a static screen. Verified with gfxinfo frame capture on a real device, not a simulator.
02The native layer
Patched react-native-maps so images inside markers actually load, wrote Nitro module bridges, and fixed an Android TextInput state chain that leaked on every keystroke and overflowed the stack on teardown.
03Tested like a product
62 Maestro end-to-end flows covering auth, garage, feed, social, shop mode and account. A single QA pass across them surfaced 178 fixes.
04Architecture
Redux with Saga and persisted state, MMKV for hot storage, SignalR for realtime, Firebase for auth and messaging, In-App Purchase for subscriptions, Sentry for whatever still gets through.
// stack
- React Native
- TypeScript
- Redux-Saga
- Reanimated
- Shopify Skia
- FlashList
- Nitro Modules
- Vision Camera
- react-native-maps
- Firebase
- SignalR
- Sentry
- MMKV
- Maestro
// selected work
Things I've built.
SYNERGY-AI Cancer Trial Finder
Health platform running in twelve countries: patient-to-clinic matching, automated report flows and advanced filtering over clinical data.
- React Native
- Health
- Data
Dr-Arturo AI & Ask Fiona AI
AI-assisted clinical trial discovery and oncology data analysis for health professionals. Presented at ASCO 2024 and 2025.
- AI
- Oncology
- Product
Berksan Mühendislik
Corporate web platform. React front end, .NET backend services and the REST layer between them; responsive structure and data flows handled end to end.
- React
- .NET
- Web
Panel Rewards
Loyalty and reward management platform: points, balances, campaigns, transaction flows, validation and the admin panel that operates all of it.
- Platform
- API
- Admin
GFC Loyalty — Rewards
Modular platform joining social features to a reward system: point transfer, shipment tracking and payment integrations.
- Mobile
- Payments
ICCOUS
Industrial tracking for energy and natural gas facilities. Expo-based field application with realtime sync between field teams and backend.
- Expo
- Realtime
- Industrial
E-mülk
GIS-integrated real estate information system: map-based, realtime property and asset tracking.
- GIS
- Maps
- Web
uLouder
Location-based social network built on geo-fencing and map services, with clubs and a live feed.
- Geo-fencing
- Social
Kampüs365 / iKampüs
Education ecosystem covering school administration, content sharing and teacher-to-parent communication.
- Education
- Mobile
// signal
Where the machines came in.
For three years my work sat next to applied AI in oncology — products that read clinical data and put an answer in front of a doctor. That is a domain where a plausible-looking wrong answer is not a bug report, it is a patient.
01AI in the clinic, not the demo
Dr-Arturo AI and Ask Fiona AI help health professionals find clinical trials and make sense of oncology data. My side was the product layer: turning model output into something a clinician can act on, and making the uncertainty legible instead of hidden.
02Matching at scale
SYNERGY-AI matches patients to trials across twelve countries. The hard part was never the matching — it was the filtering, the reporting and the data hygiene that make a match trustworthy.
03How I work now
I run large refactors, QA passes and migrations through coding agents, with tight and verifiable success criteria. The skill is context design and knowing exactly what to check. The bottleneck has moved from typing to judgement — telling a correct system from a plausible one is becoming the whole job.
// end of line
There is no spoon.
But there is an inbox. If you're building something that has to work on real devices, for real users, say hello.