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Oleksii Khudenko

@oleksiikhudenko

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Mobile Team Lead at Splynx who created a shared core library and delivery workflows for multiple mobile apps.

Netherlands

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At Splynx, I architect and own mobile delivery workflows across multiple applications, from product requirements through implementation, testing, and app publication for iOS and Android. I also designed a shared core library that standardizes business logic across apps.

As the primary mobile technical owner, I define coding standards, repository structure, branching strategy, and documentation. I maintain CI pipelines for development and production and work closely with product and QA on delivery.

Before becoming Mobile Team Lead, I developed and shipped React Native features at Splynx and maintained a live app, resolving crashes, bugs, and performance issues. I also led a major UI refactor and contributed to rebuilding the app on newer technologies.

Across part-time projects, I developed fintech flows for card opening, top-ups, and transfers, as well as restaurant apps for staff, customers, and finance workflows. Earlier, at Cexbit, I built and maintained websites and landing pages using HTML, CSS, and JavaScript.

Experience

Work history, roles, and key accomplishments

Current

Mobile Team Lead

Current

Splynx

Nov 2025 - Present (11 months)

Architected and owned mobile delivery workflows across multiple applications, from requirement intake through implementation, testing, release preparation, and publication for iOS and Android. Defined coding standards, repository structure, and branching strategy, and implemented CI pipelines for development and production environments.

React Native Mobile Architecture CI CD Release Management Team Leadership Mentorship Documentation Cross Functional Collaboration

React Native Developer

Splynx

Oct 2022 - Nov 2025 (3 years 1 month)

Developed and shipped production React Native features end to end, ensuring alignment between mobile implementation, product requirements, and user experience. Maintained a live mobile application under real user load, resolving crashes, bugs, and performance problems based on analytics and crash reports.

React Native TypeScript Redux REST APIs Debugging Performance Optimization Refactoring UI Refactoring

React Native Developer

Finchanger

Nov 2024 - May 2025 (6 months)

Developed a fintech mobile app with complex REST API integrations and high-frequency transactional flows, focusing on stable performance under heavy usage. Implemented multi-step user flows such as card opening, top-ups, and transfers, with dynamic UI reacting to backend responses and application state.

React Native REST APIs Fintech Transaction Flows State Management Performance Optimization

React Native Developer

NDA Project

Apr 2024 - Nov 2024 (7 months)

Built staff-facing mobile apps for kitchen, bar, and cashier roles, covering order handling, receipt printing, and menu management in operational environments. Developed a customer-facing app for QR-based table ordering and implemented finance-related mobile workflows for tracking transfers between locations.

React Native Mobile Application Developer QR Code Order Management Financial Workflows Data Validation

Junior Front-end Developer

Cexbit

May 2022 - Dec 2022 (7 months)

Built and maintained internal and client-facing websites and multi-page landing pages. Implemented responsive layouts and frontend logic using HTML, CSS, and JavaScript, independently delivering complete pages and features.

HTML CSS JavaScript Responsive Design Frontend Development