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Maksym Sytyi

Maksym Sytyi

iOS/Mobile Developer, Tech/Team Lead, Full-stack Mobile Dev

+7 977 506 55 24
Russian, Ukrainian, English, German

Background


About

About

Senior Software Engineer with 7+ years of experience designing and scaling mobile applications for high-traffic platforms (Yandex Maps, MedTech, Social Networks). Proven track record of leading cross-functional teams, optimizing CI/CD pipelines (3x faster releases), and building solutions from scratch that serve 5,000+ concurrent users

Work Experience

Work Experience

  • iOS TeamLead, KORPU

    Feb, 2026 - Jul, 20266 months

    Social network with Dating

    • APP: https://apps.apple.com/ru/app/korpu-time-to-build-bridges/id6444587197

    • Created from scratch feature of manage dev environments (dev/stage/prod) for mobile and backend, reduce developing time for a 50% and enabling parallel testing

    • Built CI/CD pipelines from scratch using GitLab CI, reducing release cycle x3

    • Led a team of 4 engineers – conducted 10+ interviews, mentored 2 juniors

    • Contributed to backend services in Go (REST, gRPC), implementing real-time feature updating with SSE and Redis, supporting 5k concurrent users

    • Swift, Go, SwiftUI, UIKit, Redux, Async/Await

  • Mobile Developer, Yandex

    Aug, 2024 - Nov, 20251 year 4 months

    Maps

    • iOS APP: https://apps.apple.com/us/app/yandex-maps-navigator/id313877526

    • Android APP: https://play.google.com/store/apps/details?id=ru.yandex.yandexmaps&pcampaignid=web_share

    • Created from scratch feature of weather in map, increased DAU/MAU - 5%/8%

    • Created feature of clarify user geoposition from scratch, reduced negative feedbacks – 15%

    • Removed and refactored legacy code (C++), reduced the features development time by 25%

    • Collaborated with backend teams to design and deploy Go-based service handling 10k+ RPS, using PostgreSQL and RabbitMQ

    • Swift, Kotlin, Go, Kotlin Multiplatform, Combine, Coroutines, SwiftUI, Jetpack Compose

  • Technical Lead iOS, SpargoTechnologies

    Jul, 2021 - May, 20242 years 11 months

    MedTech project

    • APP: https://apps.apple.com/ru/app/%D0%BC%D0%BE%D0%B5-%D0%B7%D0%B4%D0%BE%D1%80%D0%BE%D0%B2%D1%8C%D0%B5-%D0%BC%D0%B5%D0%B4%D0%BA%D0%B0%D1%80%D1%82%D0%B0-%D0%B8-%D0%B2%D1%80%D0%B0%D1%87%D0%B8/id1576327586

    • Architected a custom UI framework (BDUI) from scratch, which reduced new feature development time by 3x and enabled A/B testing

    • Initiated project development, breast cancer program in Web, in absence of key people, reached the agreement with customer on the schedule, increased company revenue by 25% in Q4 2021

    • Optimized build pipeline with Fastlane and modularisation, cutting CI build time by 45% (from 20 to 11 minutes)

    • Refactored the network layer to use Combine and async/await, improving error handling and reducing crash rate by 20%

    • Mentored new team members, 2 engineers switched from PHP developers to iOS developers in 3 month and onboarded new 5 team members they become self-sufficient after 3 weeks

    • T-Shaping: Frontend (TS, Redux)

    • Swift, SwiftUI, Combine, ReSwift, SnapKit

  • iOS Developer, Atlas

    Dec, 2020 - Jul, 20217 months

    MedTech project

    • APP: https://apps.apple.com/ru/app/atlas-health-russia/id1255504641?l=en

    • Detected and solved problem in project dependencies, reduced assembly time x3 times

    • Reduced the build time by 30%

    • Swift, SwiftUI, Combine, ReSwift, SnapKit

  • iOS Developer, Technos

    Jul, 2019 - Dec, 20201 year 5 months

    Russian social network Geometr

    • APP: https://apps.apple.com/ru/app/geometr/id1446037762

    • Reduced the time for introduce new features by 25%, added modularization for all project from scratch

    • Managed and mentored 2 iOS Developers

    • Swift, RxSwift, PinLayout, SOAP, MVVM

  • iOS Teacher, Geekbrains

    Jan, 2019 - Oct, 20201 year 9 months

    Education portal

    • Swift

    • Student mentoring

  • Project Manager, Neotren

    Feb, 2014 - May, 20195 years 3 months

    Commerce / Wholesale

    • Introduced modules for the company's service department, which accelerated the work of service engineers by an average of 33% and warehouse operations by 20%

Skills

Skills

  • Languages

    Swift

    Kotlin

    Go

    Python

    JS/TS

    C++

  • Mobile

    Swift

    Kotlin

    SwiftUI

    UIKit

    Jetpack Compose

    KMP

    RxSwift

    Combine

    MVI/MVVM/Redux

  • Process

    Agile (Scrum/Kanban)

    Jira

    Confluence

    Code Review

  • Backend

    Go/Python

    RESTful APIs

    gRPC

    WebSocket

    SSE

    PostgreSQL

    Redis

    RabbitMQ

  • DevOps & Tools

    Docker

    Kubernetes (k8s/K3s)

    Helm

    CI/CD (GitHub Actions, GitLab CI, Fastlane)

  • Architecture

    MVx

    Microservices

    Event-Driven

    Clean Architecture

    Redux/Flux

    TDD/BDD

Education

Education

  • iOS Developer, Advanced training courses, OTUS (https://otus.ru)

    Mar, 2020 - Aug, 2020

  • iOS Developer, Advanced training courses, GeekBrains (https://geekbrains.ru)

    Jun, 2018 - Nov, 2018

  • Electronic Engineering, Graduate student, Zaporizhzhya State Engineering Academy

    Nov, 2006 - Jun, 2009

  • Physical and Biomedical Electronics, Masters Degree, Zaporizhzhya State Engineering Academy

    Sep, 2001 - Jun, 2006

Interests

Interests

  • Traveling

  • Music

  • Reading

  • iOS / Android Mutiplatform

  • Open Source

  • IoT