eSIM Platform Development for Alosim

Collaboration: Worked with AffinityClick

Website: https://alosim.com

alosim is a global eSIM platform that enables travelers to purchase and activate mobile data plans instantly across 200+ countries. The product spans a high-performance marketing website, a complex backend powering plan discovery and activation, and mobile apps that deliver a seamless onboarding and eSIM installation experience.

I worked as a full-stack engineer alongside the original AffinityClick team, contributing across frontend, backend, performance, and product execution.

- Built and optimized user-facing flows across the marketing and product experience

- Implemented responsive, conversion-focused UI for destination discovery, plan comparison, and checkout

- Improved page performance, load times, and SEO-critical sections

- Ensured consistent UX across landing pages, product flows, and support sections

- Worked on API-driven flows for plan selection, purchase, and activation

- Integrated third-party services for payments, eSIM provisioning, and customer support

- Helped maintain clean, scalable backend architecture to support global usage

- Collaborated closely on data handling, validation, and error-resilient workflows

- Supported app flows for eSIM installation, activation, and account management

- Ensured backend and frontend parity between web and mobile experiences

- Assisted with edge-case handling around device compatibility and onboarding