Zhanibek Marshal

Senior Engineer

checking account · 2025 - present

• Own Android delivery for checking-account activation - the gateway to a Trade Republic IBAN.
• Launched Bizum end-to-end on Android from a blank slate: P2P transfer, Request-to-Pay, and e-commerce merchant payments - the full Spanish instant-payments surface.
• Building the transfer surface across SEPA, Bizum, and add-money paths (Direct Debit via Adyen, Google Pay, FlizPay).
• Drove observability uplift with OpenTelemetry distributed tracing and Grafana dashboards for business-critical SLO monitoring.
• Designed and rolled out the Maestro E2E testing strategy for transfer flows that Espresso couldn't cover (Adyen, FlizPay SDKs). Shared at Droidcon Berlin 2025.
• Integrated Figma Code Connect for the design system, closing the loop between Figma component sources and the Compose codebase.
• Authored "State of Android at Trade Republic - 2024 edition" on the engineering blog.
• Co-organise Grab & Grow, Trade Republic's monthly internal lunch-and-learn, running for 2+ years.

cards & benefits · 2023 - 2025

• Core Android engineer on the launch of Trade Republic's banking proposition ahead of the full BaFin banking licence.
• Shipped Saveback and Round-up card rewards on Android, tying card spend back into customers' investing flow.
• Contributed to a launch that put millions of Trade Republic cards into customers' hands within the first year.
• Owned the Android side of card fraud-prevention - shipped flows and controls that reduced fraud exposure for cardholders.

design system · 2022 - 2023

• Co-launched Design System 2.0 - a complete rewrite to Jetpack Compose, now the UI foundation for every Android product surface at Trade Republic.
• Stood up Paparazzi snapshot testing on GitHub Actions, eliminating an entire class of visual regressions and enabling confident component changes across all Android teams.
• Represented Trade Republic at Droidcon Berlin 2023 with "Design System Driven Android Development: A Guide to Automation Tools".

Android Developer

IP-based TV platform for live channels and Video-on-Demand across Europe.

• Launched an Android TV box product with a custom launcher, opening a new B2B customer segment.
• Implemented on-device recording download to HDD with timeshift support for live streams.

Android Team Lead

One of the largest private banking groups in Kazakhstan.

• Built a corporate client app to automate monetary procedures.
• Reorganised the development process and introduced a career ladder to attract skilled mobile engineers.

Android Team Lead

Leading classified ads platform in Kazakhstan and Uzbekistan - 5M+ installs on Google Play.

• Led Android development across 4 apps; 3 were named top 5 mobile apps in Kazakhstan by Forbes in 2018.
• Coordinated the launch of "Avtoelon" in Uzbekistan - 100k+ installs in the first six months.
• Cut app start time from 10s to 1s by caching dynamic data in SQLite.
• Migrated several Git repos to a monorepo; the development lifecycle accelerated 2×.
• Introduced JUnit 4 - test coverage grew 30% in five months.

Android Developer

Full-cycle internet services consultancy.

• Built the Android app for Kazakhstan's national postal service - directed API design and maintained crash-free rate above 99%.
• Delivered the Chocolife.me coupon app in close collaboration with UI/UX.

Android Developer

Geo-social dating startup. Integrated XMPP to power real-time in-app chat.

• Droidcon Berlin 2025 - Maestro: Reliable E2E testing made easy
• GDG Berlin Android 2023 - Maestro - UI Testing Framework
• Droidcon Berlin 2023 - Design System Driven Android Development: A Guide to Automation Tools
• Android KZ Meetup 2022 - Jetpack Compose Navigation
• Kolesa-conf 2019 - Improving Android Developer Life with Kotlin Coroutines and ViewModel
• DrinkUp Almaty 2018 - Why Android Developers Switch to Kotlin
• Kolesa.Mobile 2016 - Concurrency in Android: A Sequential Guide

Bachelor of Engineering and Technology in Computing and Software Engineering

• Zertifikat Deutsch / telc Deutsch - B1
• Japanese-Language Proficiency Test - N1

• State of Android at Trade Republic - 2024 edition
• Modular development of Android Application
• Analysis of Kazakhstan satellite images by distributed system Hadoop
• Cited in Mobile System Design (Manuel Vivo) - WebSocket usage at a major brokerage product

Android KZ

• Founded a community of 1000+ Android developers across Kazakhstan.
• Organised multiple online meetups including during the COVID-19 lockdown period.

Kolesa Conf

• Active speaker and organiser of a leading IT conference in Almaty.
• Spoke on Kotlin Coroutines, MVVM architecture, and CI/CD.

Technovation

• Mentored a team of high school students to build mobile applications.
• Coached the team through a regional pitch held in Nur-Sultan.

Google DevFest

• Hosted code labs on Jetpack Android Architecture Components.
• Gave a talk on common problems Android developers face with MVVM.