Hire the Best iOS Developers
in the Czech Republic

Senior iOS developer with 14+ years of shipping apps for banks, fintechs and startups — currently building the iOS SDK behind Aneta, Air Bank’s AI assistant, and mobile banking apps used in production every day. What you get: • 14+ years of iOS: Swift, SwiftUI, Objective-C, UIKit, Combine, REST APIs, App Store releases • 6 recent years in mobile banking & wealth management (Trinity Bank, Creditas Invest, Maxbanking, Nedbank Private Wealth) — regulated, security-sensitive products with strict QA • Payments: I built PayPipes, a card-payment SDK that passed its PCI DSS audit on the first attempt • End-to-end delivery as an independent contractor: iSell sales-ordering app (€25M+ in orders processed), Zaphire (video broadcasting + OpenAI API), Denteractive (US telemedicine, live video) • Ride-hailing & location apps: lead iOS developer and CTO of upTAXI, a taxi startup accepted into the Wayra accelerator • AI-assisted workflow: I ship with Claude Code daily — senior quality at startup speed I’m not just a coder: I’ve also run digital strategy and P&L on the business side (Unibail-Rodamco-Westfield), so I understand budgets, deadlines and what each feature is for. I ask the right questions before writing code. Fluent English, CET timezone, comfortable with async work and overlap calls. Available 20–30+ hrs/week.

I'm an expert iOS Swift developer with a passion for UX / UI. I have been creating iOS apps for 4+ years. I have worked with the most complex technologies in iOS such as AVFoundation, HLS Live Streaming, ARKit, Sprite Kit. I am extremely communicative, and I understand what exactly needs the business so I offer the best solutions for it. I am extremely communicative, always available for any type of calls, meetings, so be free to discuss with me your next successful project.

I develop top-quality mobile, web, and desktop apps, often with AI features. I also work as a UX consultant and IT project manager. I always strive for excellent software — delivering average work is not an option for me. I put 100% effort into everything I do and always walk the extra mile. The result is apps that users love to use and that meet business goals. What I do: • mobile and multi-platform apps in Flutter (iOS and Android, web and desktop) • AI integrations, I enjoy solving advanced AI problems (e.g. by stacking AI models, distillation, fine-tuning, MoE, RAG, etc.) • complex software systems consisting of multiple connected applications • UX consultancy, UX audits (just UX, I am not a designer) • I lead a team of very talented software developers focused on Flutter, AI, and complex systems I am a member of the prestigious Toptal network and part of Upwork’s 🏆Expert-Vetted Talent🏆 program, which unites the top 1% of freelancers on Upwork (badge visible to enterprise clients only). Hiring top talent greatly enhances your business's chances of success! What I bring to the table: ✓ 13 years of combined development, consulting & tech leadership experience ✓ creative solutions, ideas & improvements ✓ an agile process that lets you stay on top of progress and quality ✓ highest engineering & algorithmic competence ✓ strong work ethics & accountability ✓ focus on detail, almost to a degree of perfectionism ✓ truly fluent in English with strong communication skills ✓ ability to speak simply and clearly about engineering and align it with business goals ✓ always up-to-date with cutting-edge tech ✓ master's degree in software engineering from a top EU university, where I now lecture on Flutter ✓ 12 years of AI and ML development experience with excellent knowledge of state-of-the-art AI models, development techniques, and APIs Have a question? Need tech consulting or want to build a mobile app? Drop me a line!

Senior Software Engineer | Android, Java, Swift, Python, Node.js | 11+ Years Experience | MSc in Artificial Intelligence Hi there, I’m Ayodeji O, an accomplished Senior Software Engineer with over 11 years of experience delivering scalable, high-impact mobile and backend solutions for global brands. I specialize in Android (Java/Kotlin), iOS (Swift), Node.js, and Python, blending engineering craftsmanship with a strong foundation in AI and cloud technologies (AWS, Firebase, GCP). At Payrix/WorldPay, I led the development of a next-generation Android mSDK that boosted card-present revenue by 300%, and built POS systems (PAX, Verifone) that achieved zero bug tickets for 7+ months straight. I’ve also designed mobile SDK architectures, integrated Datadog for real-time monitoring, and built Spring Boot microservices powering payment innovations like Txt2Pay. I’ve contributed to impactful international projects from biometric systems for national examination boards in Africa to healthcare compliance apps in the UK always with a focus on reliability, scalability, and elegant user experiences. 🎓 MSc in Artificial Intelligence to deepen my expertise in applied AI and intelligent systems. 💡 What I Bring to Your Project - Expert in Android SDKs, Kotlin, Swift, and cross-platform integrations. - Proven backend experience with Node.js, Spring Boot, and Python Strong understanding of cloud infrastructure (AWS, Firebase, GCP) - Deep experience with payments, POS systems, and SDK architecture Passion for AI-driven development, automation, and system optimization. - Fast, reliable communication and a track record of delivering excellence ⚙️ Technical Toolbox Java | Kotlin | Swift | Python | Node.js | Spring Boot | Android SDK | REST APIs | Microservices | Firebase | GCP | AWS | Docker | Kafka | PostgreSQL | MySQL | Datadog | Git 🌍 Let’s Build Something Exceptional Whether you need a high-performance mobile SDK, a backend system that scales to millions, or an AI-powered feature that differentiates your product I bring the experience, innovation, and technical leadership to make it happen.