Anton Mikhailenko

IOS Engineer

Thailand6 yrs 11 mos experience

Most Likely To Switch

Key Highlights

7+ years of experience in Android development.
Expert in real-time chat applications and reliability.
Proven leadership in team management and project delivery.

Stackforce AI infers this person is a Fintech Android Developer with a strong focus on real-time applications and reliability.

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Skills

Core Skills

Android DevelopmentKotlinLeadershipSoftware DevelopmentUi/ux Design

Other Skills

Jetpack ComposeCoroutinesSendbirdMVIClean ArchitectureTeam planningFirebase CrashlyticsSentrySDKCIMVVMExoplayerwidgetsRxJava2Navigation ComponentKotlin Multiplatform

About

I am Android developer with 7+ years of commercial experience working in teams ranging from 2 to 30 people. I have a 1 year experience of team leading and was responsible for the entire development cycle - from clarifying product requirements with stakeholders to shipping through a fully automated release pipeline with test coverage, code review standards, and CI/CD. I specialize in creating real-time chats and messengers (custom components, pagination and message caching, gesture interaction, and integration with third-party SDKs such as Sendbird), modern Android architecture (Kotlin, Coroutines/Flow, MVVM), and Jetpack Compose for declarative user interfaces (including migration from legacy Views). I also implement production-grade observability - structured logging, metrics, analytics, crash reporting, and performance monitoring - to ensure reliability and data-driven iteration after release.

Experience

6 yrs 11 mos

Total Experience

1 yr 9 mos

Average Tenure

2 yrs 3 mos

Current Experience

Guavapay

Senior Android Developer

Feb 2024 – Present · 2 yrs 3 mos · London Area, United Kingdom · Remote

Owned group and one-to-one chat end to end; shipped about 50 screens across about 15 flows, kept 2-week sprints
Implemented caching and pagination with prefetch, cold chat open from 1.12 s to 0.64 s, warm open under 0.22s
Replaced blocking loaders with placeholders and incremental rendering; reduced first launch loader time, messages display under 400ms
Shipped custom message types and one actions layer (tap/long-press/swipe), new message type from several days to under 1 day, achieved 60% code reuse
Migrated chat from Views to Jetpack Compose (stable keys, faster lists), frame time from 22 ms to 12 ms
Technologies: Kotlin, Jetpack Compose, Coroutines, Sendbird, MVI, Clean Architecture

KotlinJetpack ComposeCoroutinesSendbirdMVIClean Architecture+1

Tinkoff

2 roles

Android Feature Lead | Reliability

Promoted

Jul 2023 – Feb 2024 · 7 mos · Remote

Led a team of 3, set weekly goals, reduce backlog from 70 to 20
Shipped log parsing and alerts for key flows, error detection time from days to 1 hour
Authored alert-response guide for team; cut time to first action after alert from 60 min to 10 min
Fixed legacy crash sources with the team; improved crash-free sessions from 98.7% to 99.6% monthly average
Technologies: Android Development, Leadership, Team planning

Android DevelopmentLeadershipTeam planning

Middle+ Android Developer

Mar 2022 – Jul 2023 · 1 yr 4 mos · Remote

Launched advanced logging, increasing crash detection rate by 45%
Automated alerts with Firebase Crashlytics and SentrySDK, incident response sped up by 40%.
Applied custom lint rules via CI; reached 99% code consistency across modules
Increased code coverage in critical modules from 70% to 95% by implementing unit and UI tests
Improved socket event parsing efficiency from 65% to 95%, reducing related errors and boosting real-time data stability
Technologies: Firebase Crashlytics, SentrySDK, multimodule architecture, CI, sockets

Firebase CrashlyticsSentrySDKCIAndroid DevelopmentSoftware Development

Envoi

Middle Android Developer

Aug 2020 – Mar 2022 · 1 yr 7 mos · Remote

Self-supported the app, ensuring 99.9% uptime for 150K+ users.
Increased Google Play rating from 4.5 to 4.8 after full UX/UI redesign and 6+ major features.
Implemented subscription system, visitor history, archive video, instant door opening (widgets), and zoom; 35% growth in feature usage.
Migrated architecture from MVP to MVVM; reduced tech debt by 40%.
Set up CI/CD and automated tests; Improved crash-free sessions from 87% to 98%
Technologies: MVVM, widgets, Exoplayer, subscriptions

MVVMExoplayerwidgetsAndroid DevelopmentUI/UX Design

Rst-tur llc

Android Developer

Jun 2019 – Aug 2020 · 1 yr 2 mos · Hybrid

Created an application from scratch for tour base managers with an MVP architecture using SOLID and Clean principles.
Mentored a second developer and led code reviews.
Designed and implemented 20+ Android application screens using Kotlin and UI/UX design principles.
Implemented server-side interaction using RxJava and then replaced with Kotlin Coroutines, added result caching using RealmDB.
Optimized RecyclerView lists, refactored layouts, and fixed memory leaks.
Implemented custom views with recycled data to display the event calendar.

RxJava2Navigation ComponentAndroid DevelopmentSoftware Development