Nisa Nur
Aydın.

I build iOS apps for real problems — fintech tools that move real money, AI tools that make sense of it, apps that actually get used.

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About

A developer who cares
about the details.

I'm a Computer Engineering graduate from Kocaeli University, currently working as an iOS Developer at TKPay — Turkish Airlines' fintech arm. I've spent the last year building and shipping features for a digital wallet used by hundreds of thousands of people.

My focus is on writing clean, maintainable Swift — the kind of code that makes sense six months later. I care about memory management, architecture, and the small details that make an app feel right.

Outside of work, I build things just to learn: a multiplayer word game, an AI finance assistant, a health tracker. I like projects that push me into territory I don't fully know yet.

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Education
Kocaeli University
Computer Engineering
Platform
iOS & Apple Ecosystem
Swift · UIKit · SwiftUI
Architecture
Clean & Maintainable
MVVM · Protocol-oriented
Currently at
TKPay · iOS Developer
Turkish Airlines Fintech

Experience

Where I've worked.

iOS Developer
TKPay — Turkish Airlines Fintech
Aug 2025 — Present
  • Develop and ship features for a digital wallet with 400K+ users — KYC onboarding, foreign currency exchange, open banking integrations, and physical card management.
  • Build data-intensive views optimized for performance using Swift and UIKit, with a focus on memory management and clean code.
  • Integrate RESTful APIs for real-time sync of financial data, transaction histories, and wallet balances.
  • Contribute to an internal analytics system supporting product and business intelligence decisions.
  • Deliver sprint objectives consistently through Agile workflows and Git/PR-based code reviews.
SwiftUIKitREST APIMVVMGitAgile
iOS & Frontend Developer
KOU Embedded Systems Lab
Mar 2024 — Mar 2025
  • Built an iOS music app from scratch — playlist management, audio recording and playback via AVFoundation, offline-first with Realm, iCloud sync.
  • Developed responsive web interfaces with React and contributed to API integrations to optimize performance.
SwiftAVFoundationRealmiCloudReact
iOS Developer Intern
KOU Embedded Systems Lab
Jul 2024 — Aug 2024
  • Built StayHealthy — an iOS health tracking app for meals, water intake, and exercise with on-device food recognition via Core ML.
  • Integrated HealthKit and multiple nutrition APIs for accurate, real-time health data.
SwiftCore MLHealthKitUIKit

Projects

Things I've built.

Spendly
Graduation Project

AI-powered personal finance iOS app with dual-pipeline receipt scanning — server-side OCR with Apple Vision as on-device fallback. Supports Turkish & English receipts. Includes an AI chat assistant, spending analysis (weekly / monthly / yearly), budget tracking, recurring schedule management, and push notifications.

SwiftUIKitCore MLOCRMVVMDocker
View on GitHub
WordBrust
Side Project

Real-time multiplayer word game built mobile-first with React Native. Turn-based gameplay over WebSocket, live state sync via Socket.IO, secure JWT authentication, and an Atomic Design component architecture. Deployed on Render with PostgreSQL and Docker.

React NativeNode.jsSocket.IOPostgreSQLDocker
View on GitHub
StayHealthy
Internship

iOS health tracking app for meals, water intake, and exercise. On-device food recognition via Core ML, backed by HealthKit integration and multiple nutrition APIs.

SwiftCore MLHealthKitUIKit
View on GitHub
Music App

Feature-rich music player with playlist management, in-app audio recording and playback. Built offline-first with Realm, synced to iCloud. A deep dive into AVFoundation and cloud sync patterns on iOS.

SwiftAVFoundationRealmiCloud
View on GitHub

More on GitHub

Additional repositories.

Smaller projects, university assignments, and learning experiments.
Full Stack · Event Management
EventHub

Frontend of a web-based event management platform. Built responsive React components, optimized state management, and integrated REST APIs with JWT auth. Collaborated with the backend team on API design and security.

React.jsNode.jsPostgreSQLREST APIJWT
Full Stack · NLP & Security
SafeDocks

Academic paper anonymization platform using NLP and computer vision. Automated author identity removal via spaCy and OpenCV, with AES-128 encrypted storage and peer review workflows.

React.jsNode.jsFlaskspaCyOpenCVAES-128PostgreSQL
Full Stack · Sports
Football App

Football league management app with JWT authentication, match scheduling, team/player stats, and live score tracking. Full-stack project with PostgreSQL backend and Docker deployment.

SwiftPostgreSQLREST APIDockerJWT
Big Data · Streaming Pipeline
Spotify Data Pipeline

End-to-end big data pipeline predicting song popularity from audio features. Built the Spark Structured Streaming layer consuming Kafka, writing to a Bronze/Silver/Gold Delta Lake architecture, plus the exploratory analysis on top of it.

Apache SparkKafkaDelta LakePySparkDocker
View more on GitHub

Technical Stack

Tools I build with.

Technologies I use to design, build, and ship iOS apps — and the supporting tools around them.

iOS & Apple
Native app development across the full Apple ecosystem.
SwiftUIKitSwiftUICore MLAVFoundationHealthKitCore Data
Architecture & Patterns
Writing code that's maintainable six months later.
MVVMClean ArchitectureProtocol-OrientedDependency Injectionasync/await
Cross-Platform & Web
When the product needs to go beyond iOS.
React NativeReactJavaScriptNode.jsSocket.IO
Backend & Tooling
APIs, databases, and the tools that ship production software.
REST APIPostgreSQLRealmDockerGitJWTAgile

Contact

Get in touch.

For professional inquiries, collaboration opportunities, or any questions about my work, feel free to reach out through the channels below.

nnisaydin@gmail.com Copied!