Fantium Athlete Investment Platform

Fantium lets fans invest in athletes by owning a tokenized share of their future earnings. Over a 12-month engagement I was the product manager. I led user-centred feature development together with the team’s product designer, ran a critical infrastructure migration, and shipped the features the platform needed to grow: a loyalty program, payment integration and an analytics foundation.

4

major features shipped on schedule

99%+

uptime through the database migration

0

critical production bugs

12 mo

end-to-end product ownership

The challenge

Web3 products carry two kinds of complexity at once: ordinary product management, plus everything the blockchain adds. Fantium needed buying a stake in an athlete to feel as simple as any checkout, while on-chain transactions, wallets and a user-management migration were happening underneath.

What I did

Wallet and checkout, redesigned

The wallet page and checkout flow were where users dropped off. Together with our product designer, whom I assisted on design tasks, we reworked both flows to remove steps and explain crypto concepts at the moment they matter. My part was the requirements, the user flows and the trade-offs, and the result was less friction in crypto purchases and better conversion.

Payment provider integration

To make buying crypto seamless, I evaluated multiple payment providers, led the implementation, and made sure it stayed regulatory-compliant. The result: less friction in payment flows and lower transaction costs.

A loyalty program on the blockchain

I took a blockchain-integrated loyalty system from concept to launch: product requirements, tech-stack decisions, and managing development through to a launch with seamless reward distribution.

Migrating user management without anyone noticing

We had to move the user-management system to a new provider while the platform kept running. I coordinated the timeline, ran comprehensive QA, and set up rollback procedures. Zero data loss, minimal user impact, and sessions that carried over without users noticing.

Analytics that span web2 and web3

User behaviour crossed regular web flows and on-chain interactions, so off-the-shelf analytics missed half the story. I built a dashboard on Google Tag Manager with custom event tracking, which gave the team the insight to make data-driven decisions.

Quality and delivery

I wrote the product requirements and the test scenarios for each feature, and reliability stayed above 99% across all user flows. I also ran sprint planning and stakeholder communication across a cross-functional team, so delivery stayed on time.

Product screens

athlete profilescroll ↓

fan dashboardscroll ↓

Reflection

Fantium taught me how to run critical infrastructure changes alongside continuous feature delivery. Doing the database migration while shipping features made systematic risk management and thorough testing non-negotiable.