Open to opportunities

Alex Avelino

@alexavelino

Message

I build high-performance React products for ecommerce and streaming platforms serving millions of users.

Japan

Message

What I'm looking for

I'm looking to build reliable, high-performance web products where I can own delivery end to end, lead cross-functional technical work, and improve experiences at scale.

I've built and rebuilt customer-facing products at Rakuten and Paramount+ for ecommerce and streaming platforms serving 70M+ subscribers. At Rakuten 24 Express, I helped launch a greenfield ecommerce product from zero to production and owned its authenticated experience.

I lead delivery across architecture, internationalization, CI/CD, canary releases, and incident response. I’ve led i18n work across five languages, improved CLS from 0.75 to 0.025, reduced CI runtime by 40%, and coordinated delivery across five teams.

Previously at intive, I built medical imaging, streaming, and cross-platform TV experiences; as a founding engineer at Wargos Technologies, I built web, mobile, and AWS infrastructure for casino operations across 40 locations. I enjoy turning complex platforms into reliable, accessible experiences with React and TypeScript.

Experience

Work history, roles, and key accomplishments

Current

Senior Frontend Engineer

Current

Rakuten

Jul 2025 - Present (1 year 2 months)

Launched a greenfield ecommerce product from zero to production, leading cross-functional collaboration and defining architecture for internationalization. Deployed with canary releases and handled incident response post-launch.

React TypeScript Claude Code Figma CI CD Jenkins Grafana Authentication SSO

Senior Frontend Engineer

intive

May 2022 - Jul 2025 (3 years 2 months)

Defined architecture and workflows for a medical imaging platform and implemented RBAC for HIPAA compliance. Cut frontend bundle size by 70% and shipped features to support client acquisition.

React TypeScript React Hook Form Zustand NextAuth Redux Material UI Storybook CSS Figma RBAC HIPAA

Founding Engineer

Wargos Technologies

Mar 2019 - Feb 2023 (3 years 11 months)

Built the product from concept stage over 4 years, owning cloud infrastructure as code and digitizing casino operations. Developed a mobile analytics platform that helped secure 15 new clients.