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Senior Front-End Engineer with 9+ years of experience building high-performance, scalable web applications across large-scale consumer platforms and SaaS environments. Proven impact improving performance (up to 40% load-time reduction) and driving measurable business outcomes like conversion and retention gains.…

Mohammad M. Javadi Seyyedi

Front-End Developer, Web Developer, Software Engineer, +4

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Senior Front-End Engineer with 9+ years of experience building high-performance, scalable web applications across large-scale consumer platforms and SaaS environments. Proven impact improving performance (up to 40% load-time reduction) and driving measurable business outcomes like conversion and retention gains.…

Available to hire

Senior Front-End Engineer with 9+ years of experience building high-performance, scalable web applications across large-scale consumer platforms and SaaS environments. Proven impact improving performance (up to 40% load-time reduction) and driving measurable business outcomes like conversion and retention gains.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Beginner

Language

English

Advanced

Persian

Fluent

Work Experience

Senior Front-End Engineer at Innoscripta SE

May 1, 2025 - Present

Contributed to front-end architecture decisions and implemented micro-frontend scalability approaches. Supported adoption of Redux Toolkit, React Query, Axios, and Module Federation. Improved page interactivity time by 25% via performance-oriented changes. Increased conversion rate by 2% by implementing AI-generated report features aligned with business goals. Collaborated closely with backend engineers, designers, and stakeholders to deliver high-impact features. Owned feature-level development lifecycle from design through production deployment, with a consistent focus on code quality and best practices.

Senior Front-End Engineer at Snappfood

March 1, 2020 - January 1, 2026

Led a complete rewrite of the core customer application, reducing load times by 40% and improving overall web performance. Increased user retention by 30% and reduced error rates by 25%. Spearheaded modular front-end architecture using Turborepo to enable scalable, reusable services and apps. Developed and maintained a custom MUI-based design system to ensure UI consistency and improved accessibility. Drove the transition to a Next.js stack, integrating React SWR and Axios for efficient data fetching and state management. Worked cross-functionally to address performance bottlenecks and improve user experience.

Front-End Developer at Snappfood

May 1, 2018 - March 1, 2020

Delivered Snappfood’s Progressive Web App (PWA) using React.js, Redux, and Webpack, improving mobile compatibility for over 600,000 daily users. Integrated the PWA into larger super-apps (Asan Pardakht, IranCell), reaching over 100,000 daily users. Led conversion of native app to a hybrid application serving 300,000 users daily, improving user experience and reducing development costs. Mentored junior developers, improving coding best practices and team efficiency, resulting in a 20% reduction in code errors and improved project delivery timelines.

Frontend Developer at Snappfood

May 1, 2018 - March 1, 2020

Delivered Snappfood’s Progressive Web App (PWA) using React, Redux, and Webpack, improving mobile compatibility for 600,000+ daily users. Integrated the PWA into larger super apps (Asan Pardakht, IranCell), reaching 100,000+ daily users. Led conversion of a native app to a hybrid application serving 300,000 daily users, improving user experience and reducing development costs. Mentored junior developers, improving coding best practices and team efficiency, resulting in a 20% reduction in code errors and better delivery timelines.

Front-End Developer at G AJ International Publica tions

August 1, 2017 - April 1, 2018

Developed front-end components for in-company software panels using Angular and related technologies (including Quill and SCSS). Improved interface functionality and responsiveness by 30%. Leveraged Angular to create robust and scalable interfaces, resulting in a 25% increase in user engagement.

Frontend Developer at G AJ International (Part Software Group / Mash had, Iran)

August 1, 2017 - April 1, 2018

Developed front-end components for in-company software panels using Angular, SCSS, Quill, and related technologies. Improved interface functionality and responsiveness by 30%. Leveraged Angular to build robust, scalable interfaces, improving user experience and increasing user engagement by 25% in the role.

Front-End Developer at Part Software Group

April 1, 2016 - August 1, 2017

Contributed as a proactive front-end developer building financial software solutions for banking, stocks, and cryptocurrency markets. Developed a Customers Club platform tailored for banks and a Financial News Reader, enhancing accessibility to critical financial information. Used AngularJS and Node.js to craft robust and interactive applications, improving overall user experience for financial solutions.

Frontend Developer at Part Software Group

April 1, 2016 - August 1, 2017

Contributed proactively as a front-end developer on financial software solutions for banking, stocks, and cryptocurrency. Developed a Customers Club platform tailored for banks and a Financial News Reader, improving accessibility to critical financial information. Used AngularJS and Node.js to craft robust, interactive applications and elevate overall user experience for financial software solutions.