Key Contributions

• Led modularization of a monolith into 14 feature modules with boundaries drawn along business domains (DDD + Clean Architecture), plus 2 reusable packages extracted to Melos. Each module encapsulates its models, repositories, and UI, enabling parallel development streams, reduced merge conflicts, and faster incremental build times.
• Designed an update distribution & remote configuration system combining native update mechanisms (Google Play In-App Updates, iTunes Lookup API), Remote Config (Forced Update, Feature Toggles), and Shorebird (Code Push) enabling Dart-layer hotfixes in minutes vs. the standard 1-7 day store review cycle.
• Enforced strict static analysis across the repo, cutting analyzer issues from ~2,000 to ~20 (99% reduction). Unified Trunk-Based Development, set up pair review, and defined Individual Development Plans (IDPs) for 2 team members.
• Drove technical hiring for the mobile team: conducted 20+ technical interviews covering live coding, architecture, and problem-solving to evaluate Flutter candidates and shape team composition.
• Adopted Claude as the team AI assistant and built agent_sync, a pure-Bash CLI (zero runtime deps) that distributes a shared .ai/src/ source (rules, skills, commands, agent personas, MCP server configs) to 11 AI tools in their native formats, with GitHub Actions validation that prevents config drift across developers and CI.
• Initiated Astana Hub's Anthropic Certified Partner enrollment. Drove the company application and coordinated 10 engineers through the Claude Partner Network learning path, qualifying the organization for the Claude Certified Architect B2B tier.
• Built alem_llm, an OpenAI-compatible Dart client for the in-house AlemLLM API (chat sessions with history/context management, response streaming, typed domain models that decouple UI from the API), powering internal LLM-assisted features.
• Migrated dependency injection from Service Locator (GetIt) to a Pure DI system (Manual Composition Root) with Constructor Injection across 14 feature modules. Turned missing dependencies into compile errors instead of runtime exceptions, and made dependency graphs explicit and testable.
• Shipped a modular data layer on Drift ORM with atomic transactions and stale-while- revalidate caching (serve from cache, refresh in background on TTL expiry). Offloaded large-dataset parsing to Isolates to prevent frame drops during list scrolling in poor-network conditions.
• Engineered navigation on Octopus Router with stateful nested stacks (tabs with independent history), type-safe arguments, and deep link state restoration that reconstructs the full hierarchy (active tab, stack depth, nested screens) so users land in the correct context.
• Rolled out Server-Driven UI (SDUI) for forum-related pages where content changes frequently, moving layout and content control to the backend so updates ship without an app store release.
• Implemented digital signature flow via government PKI service (Deep Linking, OAuth 2.0 via WebView, web fallback) that replaced a desktop signing agent. Cut signing time from 5-10 minutes per document to ~1.5 minutes.
• Deployed ReCAPTCHA Enterprise, filtering ~85% of bot registrations, and added screen capture protection for sensitive content.
• Built GitHub Actions + Fastlane pipelines using GitHub-hosted runners for parallel iOS/Android builds with flavor support (dev/prod), auto-distribution of QA builds to TestFlight (iOS) and Firebase App Distribution (Android), and Slack notifications. Cut build times from >10 to ~4 minutes via dependency caching and by moving analytics generation to a custom CLI that removed build_runner overhead.
• Created a corporate UI Kit with 102 reusable components. Built custom visual effects via GLSL Shaders (FragmentProgram) that cut shimmer animation overhead from N per-widget tickers to 1 shared ticker, lifting frame performance on skeleton-heavy loading screens. Integrated interactive 3D models via model-viewer (WebGL-based rendering). Web Showcase: https://astanahub-dev.github.io/mobile_ui_kit/
• Automated repetitive workflows via custom code generation. analytics_gen cut new-event addition from 10-15 minutes to 2 with auto-documentation. Flart plugin synchronized design tokens (colors, typography, variables) and cut manual transfer of 50-100 tokens from 1 hour to minutes. Integrated ISpect in-app bug reporter to accelerate diagnosis by auto-collecting logs, network traffic, and device state.
• Architected a multi-backend layer with isolated clients for internal services and payment gateways (Kaspi Pay, Freedom Pay). Decoupled configuration (BaseUrl, Interceptors, Error Handling) reduced new API integration setup from ~1 day of boilerplate to a few hours.
• Delivered the Digital Bridge networking module covering WebSocket chat with auto-reconnect, match cards, QR business-card scanning with contact saving, and two-way calendar synchronization (iOS/Google Calendar). Replaced manual contact exchange and disconnected scheduling with a single in-app flow for connecting and planning sessions.
• Cut application size by ~26% total (35 MB → ~26 MB) in two stages. Wrote a custom asset compression script (WebP) that took size from 35 MB → 29 MB. Then authored a Python automation script to detect and remove unreferenced assets across all sources, freeing an additional ~3 MB.
• Launched Digital Bridge event modules covering ticketing, schedule builder, QR check-in, and gamification (AI Quest). The check-in flow processed 14,400+ QR scans with 86% ticket activation during live event load (27K+ attendee context).
• Introduced an in-app survey system that replaced manual spreadsheet collection. Gave the product team structured per-segment feedback (visitors, speakers, partners) for the first time, which unlocked data-driven planning for future events.
• Instrumented behavioral analytics and experimentation: integrated Microsoft Clarity for session insights and heatmaps, and set up A/B testing to validate feature variants against real user behavior before full rollout.

Key Contributions

• Cut app startup time by ~60% (from ~3.0s to ~1.2s), measured from main() to first interactive screen. Offloaded heavy synchronous operations from main(), implemented parallel async dependency initialization, and added lazy-loading of modules.
• Designed a Feature-first architecture on the BLoC + Repository stack. Covered ~80% of business logic (BLoC, Repository, Use Cases) with Unit tests (verified via CI coverage reports). Implemented product analytics (events, funnels, core scenarios).
• Built the core EDM module covering creation, approval, resolutions, and signing via government PKI digital signatures (supporting ACL role models). Extended the platform with a vacation request flow that moved the process from physical HR visits to an in-app workflow.
• Created the team's first base of Architectural Decision Records (ADR) and guidelines, previously nonexistent documentation for onboarding new developers.
• Developed a 3-factor authentication system (SMS/email OTP, Face Detection via Google ML Kit, PIN) with Secure Storage. Face Detection served as an identity verification step (presence + liveness check) on top of the OTP and PIN factors.
• Configured CI/CD pipelines and monitoring. Built structured logging that cut diagnosis time for network and system errors from hours of log-digging to minutes of filtered search. Set up push notification delivery across Google GMS and Huawei HMS, which covered all device types in the enterprise client base.
• Cut application size by ~35% (50 MB → 32 MB, Play Console data) by removing unused dependencies and legacy assets, lowering storage requirements for budget devices.
• Shipped the Drive module (file storage, uploading, version history via Chopper) and battery-efficient GPS tracking via Method Channels. Brought both features from the web portal into the mobile app for field monitoring use cases without draining the device battery.

Key Contributions

• Optimized AgroGIS rendering of 5,000+ objects via dynamic zoom-level clustering, lazy loading (on-screen items only), and Isolate-based parsing of large datasets and charts. Eliminated the 2-3s freeze during zoom/pan on budget Android devices.
• Built offline-first architecture with tile caching (OpenStreetMap), data caching (Drift), and conflict resolution with update prioritization. Designed API contracts via Retrofit and aligned sync and error handling with the backend to maintain cache consistency.
• Assembled crop and finance dashboards for management reports. Integrated GA4 and Dynamic Links to give the product team visibility into drop-off points and feature adoption.

Key Contributions

• Developed and conducted a Flutter course completed by over 100 students (20 video lessons, 12k+ views on YouTube, Zoom workshops). Four of the 100 graduates were hired into the team, expanding company capacity.
• Owned end-to-end integration of payments (Stripe, RevenueCat), real-time features (GraphQL subscriptions, WebSocket), peripheral devices (Bluetooth, NFC), maps (Mapbox, Yandex Maps), local persistence (Hive, Isar), and product analytics (AppMetrica) across multiple projects.