M&A Integration

Passfolio was a US-based investment platform for international users — primarily Brazilians investing in US stocks. In 2022, Santander acquired Passfolio to integrate the product into their digital banking ecosystem. The mandate was clear: migrate the entire Passfolio experience into Santander's platform and launch within 8 months.

The complexity was enormous. Two different tech stacks, two regulatory frameworks (SEC + CVM), two product cultures, and tens of thousands of active users who needed to be migrated without losing their portfolios or trust. Every week of delay had regulatory and financial consequences.

I was the PM responsible for the product integration — the bridge between Passfolio's startup team and Santander's enterprise organization. My job was to define what the integrated product would look like, what could be cut to hit the deadline, and what absolutely could not be compromised.

Ruthless scope management. The initial feature list from stakeholders on both sides would have taken 18+ months. I led the effort to define a "launch-critical" scope — the minimum set of features and compliance requirements needed for day-one. Everything else went to a post-launch roadmap. This required difficult conversations with senior leadership on both sides, but it's what made the 8-month timeline possible.

User migration as a product, not a script. The instinct was to treat migration as a backend operation — run a script, move the accounts. I pushed for migration to be a first-class product experience. Users got a guided flow explaining what was changing, what wasn't, and what they needed to do. We built a status dashboard so users could track their migration in real time. This reduced support tickets significantly during the transition.

Parallel workstreams with clear contracts. With two engineering teams working in parallel on different stacks, I defined API contracts and integration points upfront. Each team could build independently against the contract. When we connected the pieces, the integration phase was weeks — not months.

Launched in 8 months. The integrated product went live on schedule. Users were migrated with their portfolios intact, and the Santander team had a working international investment product inside their platform.

The migration experience had a significantly lower support contact rate than comparable fintech migrations. The phased rollout approach meant we caught issues with small cohorts before they affected the broader user base.

M&A integration is the hardest PM work I've done. The technical challenge is real, but the human challenge is harder — aligning two teams with different cultures, incentives, and definitions of "done." The key insight: scope is the only lever that actually matters when the deadline is fixed. You can't add people or hours fast enough. You can only cut scope ruthlessly and correctly.

I also learned that treating migration as a product experience (not just a technical event) is the difference between users who feel taken care of and users who feel abandoned.