andreyeu

A Cyprus-based forex broker developing software for trading currencies, stocks, and cryptocurrencies, competing with eToro. ● Led a team of four React Native engineers, reducing time-to-market by 20%. ● Automated CI/CD with Fastlane and GitHub Actions, cutting QA build time from 2 hours to 30 minutes. ● Implemented automated testing (Appium + WebdriverIO), reducing manual testing from 8 hours to 2 hours. ● Complied with App Store and Google Play guidelines, reducing rejections to zero over a year. ● Introduced feature flags, A/B testing, and Session Replay, accelerating hypothesis validation and release. ● Implemented gesture handling in widgets and charts, speeding user actions by 15-20%. ● Conducted 20+ interviews and developed assessment tasks, accelerating the hiring of React Native developers.

A Cyprus-based forex broker developing software for trading currencies, stocks, and cryptocurrencies, competing with eToro. ● Conducted a comprehensive code optimization, halving page load times. ● Implemented OpenTelemetry and logging with Axiom, reducing incident diagnosis time from 1 hour to 15 minutes. ● Implemented mandatory code reviews, reducing production bugs by 30%. ● Created gamified prize-draw apps to boost lead capture at conferences. ● Integrated web applications with FxBO CRM, streamlining customer data processing.

An IT company that provides outsourcing services and develops its own products, a competitor to IBA Group. ● Implemented data caching with Redux Toolkit, speeding up fintech app screen load times by 40%. ● Integrated Sentry and Firebase Crashlytics, increasing the crash-free rate from 72% to 98.7%. ● Increased unit test coverage from 20% to 100%, reducing regression bugs. ● Implemented an end-to-end release process for the App Store and Google Play, launching two apps to production. ● Configured build distribution via App Center, accelerating delivery of apps to QA.

An IT company that provides outsourcing services and develops its own products, a competitor to IBA Group. ● Built the frontend of a cryptocurrency exchange from scratch, launching a web app for trading stocks and pairs. ● Integrated Firebase Crashlytics, improving mobile app stability. ● Improved load times for mobile and web applications, reducing average UI response time.

A product company that develops software for JackControl hardware and project management, a competitor to Atlassian. ● Implemented lazy loading of modules, reducing the JackControl panel load time by 40%. ● Created a UI library with PrimeVue and Storybook, reducing the time to implement standard UI elements by 30%. ● Integrated an ACL and user roles system, simplifying workflows for operators, admins, and other roles. ● Designed and built a visual role-management interface, eliminating the need for admins to manually edit JSON.

An international IT company that provides outsourcing services and develops its own products, a competitor to EPAM Systems. ● Built a REST API with NestJS from scratch, launching a backend with 6 modules and 20+ endpoints. ● Created an OpenAPI/Swagger specification, reducing client-side development time by 40%. ● Built a wrapper module for the Emarsys SDK from scratch, reducing integration time from weeks to one day.