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Sergey Y
@kovallux77
iOS and macOS Architect, Mobile Security, Pentesting, SecDevOps
Ukraine
Polnisch, Französisch, Englisch, Russisch, Ukrainisch
Über mich
15+ years building secure, high-performance applications for banking, healthcare, and enterprise clients across Europe and North America. Based in Luxembourg, specializing in mobile security architecture for regulated financial services.
Expertise
• Mobile security & secure architecture (iOS/macOS)
• Regulatory environments: ISO 13485, IEC 62304, NIST 800-53, PCI DSS, PSD2, GDPR, HIPAA
• CI/CD and DevOps automation (Xcode Cloud, Bitrise, GitHub Actions, SonarQube)
• Technologies: Swift, Objective-C, SwiftUI, Metal, CoreML, ARKit, Xamarin (C#)
Kompetenzen
Sergey Y
65 $/Stunde
offline •
Durchschnittliche Antwortzeit: 3 Stunden
Meine Dienstleistungen
iOS-App-Entwicklung
I will code ios app on expert level in swift, swiftui or objective c
iOS-App-Entwicklung
I will program ios app in swift, swiftui or objective c
Möchtest du auf Stundenbasis arbeiten?
Erzähle Sergey Y, was du brauchst.
65 $
/
StundeArbeitserfahrung
Senior iOS/macOS Architect
GlobalLogic Ukraine • Teilzeit
Aug 2009 - Present • 16 yrs 9 mos
‣ Security Architect & Lead iOS Engineer - HCSS Blue Beam Construction Platform - Led security architecture for enterprise construction platform serving 5,000+ corporate users—reduced critical vulnerabilities by 65% through automated penetration testing and SonarQube integration, achieving zero security incidents over 18-month tenure - Accelerated deployment velocity by 40% implementing Xcode Cloud CI/CD workflows with custom Bash scripts; increased code coverage from 45% to 78% via GitHub Actions quality gates - Ensured compliance with ISO 13485, IEC 62304, NIST 800-53, FDA MDR, GDPR, and HIPAA regulations ‣ Lead macOS Engineer - Dolby Laboratories R&D Division - Delivered 3 production-ready macOS prototypes for next-gen photo/video processing, advancing Dolby's research pipeline by 6 months - Pioneered 3D camera capture technology using CoreML depth estimation and multiplanar image fusion; architected Metal-based rendering engine achieving 60 FPS at 4K resolution ‣ Trusted Interviewer & Security Lead - Conducted 50+ technical interviews (85% hiring accuracy); recognized as 1 of 15 Trusted Interviewers in GlobalLogic's 7,000+ engineering org - Coordinated third-party penetration testing across projects—identified and remediated 40+ critical vulnerabilities pre-deployment
69 Bewertungen
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Zusammensetzung der Bewertung
- Kommunikation
- Qualität der Lieferung
- Preis-Leistungs-Verhältnis der Lieferung
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eashton3
Wiederkehrender Kunde
Vereinigte Staaten
Sergey is the first developer I have ever worked with and I feel incredibly thankful and lucky for coming across his services. I had an idea for an IOS app with no prior experience in app development, and Sergey made it all possible. His work is exceptional and it’s clear he truly cares about his client’s...
Hilfreich?
larsfutudent
Wiederkehrender Kunde
Finnland
Good communications and very professional approach and delivery. Warmly recommended.
Hilfreich?
guilherme_sa
Brasilien
Very professional and with very good final delivery.
Hilfreich?
patrick_kladek
Österreich
I'm new to Fiverr and needed help with my existing iOS Application as I had a tight schedule. Sergey made a custom offer and we agreed on 2 tasks: - Adopt dark mode in CTAssetsPickerController - And make it Carthage compatible. He did the first task flawlessly but couldn't complete the second one....
Hilfreich?
victorcoutin
Spanien
Sergey is extremely professional and delivered a quality product on time.
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