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amirreza ashrafi

@amirrezaashrafi

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Frontend Engineer at Jast Company who transformed a stalled product and cut LCP from over 30 seconds to under 2.

Iran

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At Jast Company, I transformed a stalled product’s architecture and built a modular, real-time chat platform with voice recording and optimistic updates. I also improved performance, cutting LCP from over 30 seconds to under 2 seconds on slow networks and legacy pages.

At Vodafone, I built real-time telecom dashboards and contributed to its global 'Source Web' component library. As a Frontend Technical Lead for Multiple Clients, I guided frontend architecture and engineering standards; at Berent Company, I migrated projects into a unified Monorepo and deployed a private NPM registry for shared libraries.

Experience

Work history, roles, and key accomplishments

Frontend Engineer

Jast Company

Jan 2024 - Mar 2026 (2 years 2 months)

Led AI-driven code quality initiatives, automated developer workflows, and architected scalable real-time systems. Drove performance overhauls and built a production-grade design system.

Frontend Technical Lead

Multiple Clients

Jan 2021 - Mar 2026 (5 years 2 months)

Directed frontend architecture across large-scale products, established engineering standards, and mentored teams. Implemented observability and type-safe API schemas.

Clean Architecture DDD SOLID Code Review SCSS Swagger Zod Sentry PostHog Observability Mentorship SDLC

Frontend Architecture Consultant

Berent Company

Jan 2024 - Dec 2024 (11 months)

Spearheaded migration of multiple projects into a unified Monorepo architecture and built a private NPM registry for a company-wide UI Kit.

Monorepo NPM UI Kit Design System Architecture Migration

Software Engineer

Vodafone

Jan 2020 - Dec 2023 (3 years 11 months)

Owned end-to-end feature development for telecom applications, built real-time dashboards, and contributed to a global component library. Ensured WCAG 2.2 AA compliance and optimized Core Web Vitals.

React TypeScript NodeJS Hash Map DFS BFS Dynamic Programming Memoization Design Systems WCAG 2.2 OpenTelemetry Datadog Code Splitting Lazy Loading Service Workers Agile Scrum Pair Programming Mentorship

Frontend Engineer

AKAF Company

Jan 2018 - Dec 2018 (11 months)

Architected a configuration-driven white-label enterprise portal, developed a scalable design system, and built complex data-driven UI modules. Created a PWA for language exam simulations.