Sergey Y

@kovallux77
5,0(69)

iOS and macOS Developer, Mobile Security, Pentesting, SecDevOps

Ucraina
Polacco, Francese, Inglese, Russo, Ucraino
Alcune informazioni sono riportate in lingua inglese.
Chi sono
17+ years helping European and North American software companies modernize and expand their iOS, macOS and Windows product lines. I act as a long‑term product & tech partner, rewriting and porting legacy desktop apps to Swift/SwiftUI and modern .NET/C#, with deep experience in large codebases, cross‑platform migrations (Windows ⇄ macOS) and keeping revenue‑critical apps stable while evolving the stack.... Continua a leggere

Competenze

k
kovallux77
Sergey Y
offline • 

Consulta i miei servizi

Sviluppo di app IOS
I will program ios app in swift, swiftui or objective c
5,0(1)
Sviluppo di app IOS
I will be your long term ios and macos product and tech programmer
5,0(1)

Vuoi lavorare su base oraria?

Spiega a Sergey Y cosa ti serve.

65 USD

/

ora

Portfolio

Esperienza lavorativa

Senior iOS/macOS Architect

GlobalLogic Ukraine • Part time

Aug 2009 - Present16 yrs 10 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 Recensioni
5,0

(65)
(0)
(0)
(0)
(4)
Valutazione dettagliata
  • Livello di comunicazione del venditore
    5
  • Qualità della consegna
    5
  • Valore della consegna
    5
1-5 di 69 recensioni
Ordina per
Più rilevante
    E

    eashton3

    Cliente abituale

    US

    Stati Uniti

    5

    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...

    400 USD-600 USD

    $

    2 settimane

    Tempo

    gig

    Sviluppo di app IOS

    Utile?
    No
    L

    larsfutudent

    Cliente abituale

    FI

    Finlandia

    5

    Good communications and very professional approach and delivery. Warmly recommended.

    Utile?
    No
    G
    image-docs

    guilherme_sa

    BR

    Brasile

    5

    Very professional and with very good final delivery.

    Utile?
    No
    P
    image-docs

    patrick_kladek

    AT

    Austria

    5

    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....

    Utile?
    No
    V
    image-docs

    victorcoutin

    ES

    Spagna

    5

    Sergey is extremely professional and delivered a quality product on time.

    Utile?
    No