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iOS Developer with 6+ years of experience in mobile application development across banking, fintech and e- commerce. Experienced in building and maintaining production applications with a strong focus on reliability, maintainability, performance, and clean architecture. Strong background in Swift, SwiftUI, UIKit, MVVM, Combine, REST APIs, testing, and CI/CD, with additional experience in Android and cross-platform development. Comfortable working across the full software development lifecycle, collaborating with product, QA, security, and engineering teams in Agile environments. Proactively adopts AI-first development practices and AI coding agents to improve development efficiency across implementation, refactoring, debugging, testing, code review, and documentation.…iOS Developer with 6+ years of experience in mobile application development across banking, fintech and e- commerce. Experienced in building and maintaining production applications with a strong focus on reliability, maintainability, performance, and clean architecture. Strong background in Swift, SwiftUI, UIKit, MVVM, Combine, REST APIs, testing, and CI/CD, with additional experience in Android and cross-platform development. Comfortable working across the full software development lifecycle, collaborating with product, QA, security, and engineering teams in Agile environments. Proactively adopts AI-first development practices and AI coding agents to improve development efficiency across implementation, refactoring, debugging, testing, code review, and documentation.

Ümit Emre Aydın

Software Engineer, Back-End Developer, DevOps Developer

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iOS Developer with 6+ years of experience in mobile application development across banking, fintech and e- commerce. Experienced in building and maintaining production applications with a strong focus on reliability, maintainability, performance, and clean architecture. Strong background in Swift, SwiftUI, UIKit, MVVM, Combine, REST APIs, testing, and CI/CD, with additional experience in Android and cross-platform development. Comfortable working across the full software development lifecycle, collaborating with product, QA, security, and engineering teams in Agile environments. Proactively adopts AI-first development practices and AI coding agents to improve development efficiency across implementation, refactoring, debugging, testing, code review, and documentation.…iOS Developer with 6+ years of experience in mobile application development across banking, fintech and e- commerce. Experienced in building and maintaining production applications with a strong focus on reliability, maintainability, performance, and clean architecture. Strong background in Swift, SwiftUI, UIKit, MVVM, Combine, REST APIs, testing, and CI/CD, with additional experience in Android and cross-platform development. Comfortable working across the full software development lifecycle, collaborating with product, QA, security, and engineering teams in Agile environments. Proactively adopts AI-first development practices and AI coding agents to improve development efficiency across implementation, refactoring, debugging, testing, code review, and documentation.

Available to hire

iOS Developer with 6+ years of experience in mobile application development across banking, fintech and e-
commerce. Experienced in building and maintaining production applications with a strong focus on reliability,
maintainability, performance, and clean architecture.

Strong background in Swift, SwiftUI, UIKit, MVVM, Combine, REST APIs, testing, and CI/CD, with additional
experience in Android and cross-platform development. Comfortable working across the full software
development lifecycle, collaborating with product, QA, security, and engineering teams in Agile environments.

Proactively adopts AI-first development practices and AI coding agents to improve development efficiency across
implementation, refactoring, debugging, testing, code review, and documentation.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Beginner

Beginner

Beginner

Language

Turkish

Fluent

English

Fluent

German

Intermediate

Work Experience

iOS Developer (Contractor) at il aB Bank

August 1, 2024 - September 1, 2026

Developed and maintained security/compliance modules including biometric authentication and identity verification workflows. Enhanced end-to-end KY C (Know Your Customer) workflows for onboarding and periodic reviews covering personal information, address, employment, tax residency, and Source of Wealth flows. Worked in a security/regulated context ensuring reliability and compliance readiness.

iOS Developer

November 1, 2023 - July 1, 2024

Designed and implemented Identity Verification (IDV) flows integrating Veriff-based verification with eligibility, session creation, decision handling, retry mechanisms, restriction handling, and multiple business-specific verification scenarios. Built and evolved document upload and verification workflows including document categorization/subtypes, reference ID management, upload error handling, permissions handling, and FATCA-required document flows. Investigated and resolved production bugs across releases to ensure stability. Contributed to digital onboarding flows and collaborated with international stakeholders in a Scrum-based environment. Worked on a loyalty mobile application (pre-release) delivering core modules like push notifications and user profile management. Integrated REST APIs for loyalty points and QR code redemption flows.

Android Developer at IB TECH A.Ş

November 1, 2021 - March 1, 2023

Developed and maintained core money transfer features (EFT, FAST, IBAN) for millions of users. Resolved complex crash issues affecting critical workflows, reducing crash rates significantly. Integrated banking REST APIs with secure token handling and custom encryption modules. Contributed to deployment and QA flows. Collaborated with QA, product, and security teams to ensure stable production delivery.

Software Developer at Menulu Bilgi Teknolojileri A.Ş.

July 1, 2019 - November 1, 2021

Developed full-stack Android apps for restaurant operations (POS, Waiter, Menu) and supported iOS clients using Swift. Integrated internal and third-party REST APIs for menu, orders, and analytics systems. Set up CI/CD pipelines for automated testing and deployment using Jenkins. Fixed bugs across multiple platforms (Android/iOS/Web), improving reliability in live environments. Contributed to backend service design and cross-platform deployment strategy.