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Aleksandr Zamashkin

@aleksandrzamashkin

Senior Frontend Engineer at Raiffeisen Bank Russia who cut build time 67% and doubled onboarding completion.

At Raiffeisen Bank Russia, I owned frontend delivery for a CryptoPro document-signing integration used by 20,000+ users. I also migrated an application to an independently deployable microfrontend, reducing build time by 67%.

At Intrepid Fox, I implemented a redesigned KYB onboarding flow that helped increase completion from 13% to 26%. Earlier, at Mel.fm, I built AMP versions of existing pages, reducing mobile page-load time by 47%.

Experience

Work history, roles, and key accomplishments

Frontend Engineer

Raiffeisen Bank Russia

Feb 2021 - Mar 2026 (5 years 1 month)

Owned frontend delivery of a CryptoPro document-signing integration used by 20,000+ users, migrated an application to a microfrontend reducing build time by 67%, and upgraded Webpack to reduce bundle size by 44%.

React TypeScript Webpack Cypress CryptoPro OpenAPI TypeScript Tanstack Query

Frontend Engineer (Part-time contract)

Intrepid Fox

Jul 2024 - Jun 2025 (11 months)

Implemented a redesigned KYB onboarding flow that increased completion rate from 13% to 26%, standardized theming for embedded flows, and integrated Microsoft Entra ID for authentication.

Vue.Js Nuxt Tailwind Microsoft Entra ID Zod

Frontend Developer

Mel.fm

Jul 2019 - Nov 2020 (1 year 4 months)

Built AMP versions of pages reducing mobile load time by 47%, implemented server-side GraphQL resolvers, and migrated legacy code from Google Closure Library to React.

React TypeScript GraphQL Closure Library Google AMP