Product Manager

Building products at the intersection of design, systems & people

Fintech PM with experince shipping software across Europe and the US — I bring 7+ years of product experience grounded in human empathy, systems thinking, and a deep belief that great products start with understanding people.

Open to opportunities
Jersey City, NJ

A PM shaped by many worlds

I started in architecture, learning how to think in systems, how to balance function with human experience, and how to translate abstract ideas into things people actually use. That foundation never left me.

From there, I spent three years at Ventures Platform in Nigeria — one of West Africa's leading VC firms — evaluating early-stage fintech and SaaS startups at the pre-seed through Series C stages. I saw what separates companies that scale from those that don't, and I fell in love with the product decisions that make the difference.

That pulled me toward a master's in Human-Computer Interaction at Tallinn University, where I deepened my understanding of how people interact with technology — building the theoretical and research foundation that now shapes how I approach every product problem.

I then spent years building and shipping in Europe — at Zageno (a B2B e-commerce platform for scientists in Berlin) and at Coolbet (a fintech/payments platform later acquired by GAN) in Estonia — owning roadmaps, integrations, UX decisions, and cross-functional delivery end to end.

Today, I'm based in Jersey City, NJ, completing an MS in Product Development at RIT, and looking for my next challenge. I'm not wedded to one industry — I'm a PM who can work across domains because the fundamentals travel.

2010
B.Sc. Architecture
Covenant University, Nigeria — Spatial thinking, design systems, visual communication
2015
Business Analyst — Ventures Platform
Abuja, Nigeria — VC firm, evaluating pre-seed to Series C fintech & SaaS startups
2018
M.Eng. Human-Computer Interaction
Tallinn University, Estonia — UX research, interaction design, ML recommender systems
2021
PM — Zageno (Berlin)
B2B e-commerce for scientists — internal tools, ops optimization, virtual card integration
2023
PM — Coolbet / GAN (Estonia)
Payments, wallet infrastructure, identity authentication across international markets
2024
MS Product Development — RIT
Rochester Institute of Technology, NY — Solidifying the craft
Now
Jersey City, NJ
Open to PM and UX/Product Design-adjacent roles

Selected work

Real-world product problems solved across payments, e-commerce, analytics, and UX — each one a story of defining the problem, working with people, and shipping.

Payments · Fintech · UX

Coolbet — Payment Infrastructure & Wallet Experience

As PM for payments at Coolbet (acquired by GAN), I owned the full end-to-end wallet experience across Scandinavia and beyond — from bank partnerships and API integrations to UX decisions, ops tooling, and a government-backed identity rollout for 57K users.

400K+
Transactions
57K
Users
Sprint Velocity

The challenge: Post-acquisition, deliver a robust payments infrastructure across multiple international markets while reducing fraud, integrating third-party providers (PayPal, Apple Pay, SEPA banks), and improving ops team UX — all in two-week sprints.

My role: Led a cross-functional team of 6. Defined the roadmap. Owned all bank and API partnerships. Designed the UX for payment flows (settlement buffers, dispute resolution, wallet UI). Ran bi-weekly customer calls across markets. Coordinated UAT. Shipped.

B2B E-commerce · Internal Tools · Ops

Zageno — "Amazon for Scientists" Ops Optimization

Zageno is a two-sided e-commerce platform for laboratory supplies — 40M+ SKUs from 5,000+ brands. I was the PM optimizing the operational backbone that makes orders actually happen: address correction, payment autofill, finance workflows, and reporting.

50%
Checkout Friction ↓
40+
Ops Users
5K+
SKUs Impacted

The challenge: Ops agents were manually copying credit card details between systems, correcting shipping addresses by hand, and doing complex weekly finance reports using fragile spreadsheet workflows. Every minute lost = delayed order for a scientist.

My role: Identified root causes. Led a virtual credit card integration with Silicon Valley Bank that auto-populated payment fields. Streamlined address correction flows. Built a structured weekly finance report that replaced ad-hoc data pulls. Managed vendor RFPs throughout.

Nonprofit · Conversion Optimization · Product Strategy

Abraham Initiatives — Homepage Conversion & UX Optimization

A real client engagement through Taproot Foundation. Abraham Initiatives had a functioning WordPress nonprofit website with traffic, donations, and a mailing list — but visitors were dropping off the homepage in under 13 seconds before understanding the mission or taking action. I was brought in as product strategist and requirements translator.

Client feedback

"Hi Fiyin! I ran this past my team and we think it looks great."

— Lydia Woolley, Associate Director (North America)

13s
Avg homepage time
2.4%
Listserv signup rate
1%
Donation conversion
3
Core goals defined
The Problem

Visitors weren't immediately understanding the organization or finding key actions fast enough. Analytics showed high homepage drop-off, short dwell time, and low conversion despite functioning donation and email infrastructure.

My Process

Conducted stakeholder interviews. Analyzed Google Analytics data. Identified the homepage as a weak entry point — lacking clear mission explanation, visible CTAs, and intuitive resource navigation. Translated findings into a detailed PRD ready for developer handoff.

The Solution

Homepage redesigned as a single scrollable mission + action hub: visible donation CTA with preset amounts, mailing list placement above the fold, simplified resource navigation, and a cleaner information hierarchy — all within the existing WordPress stack.

Structured exercises that show how I approach ambiguous problems — from marketplace economics to analytics strategy. These are interview-style cases, framed as I'd present them to a hiring team.

Marketplace · Pricing · Unit Economics

Lyft — Two-sided Market Pricing Strategy

Given a new city launch with a 60% driver match rate and clear churn asymmetry between matched and unmatched riders, how do you set pricing to maximize 12-month net revenue without raising rider prices?

The Problem

Only 60 of 100 ride requests find a driver. Riders who fail to get a match churn at 33%/month vs 10% for matched riders — meaning every unmatched ride isn't just a lost trip, it's a compounding retention problem. Driver CAC is $500 vs $10–20 for riders, so the supply side is the expensive constraint.

My Thinking

The experiment showed reducing Lyft's take from $6 to $3/ride pushed match rates from 60% to 93% almost instantly — proof that driver supply is price-elastic. The key insight: at 60% match, the 40% failure rate is destroying rider LTV faster than the margin loss from subsidizing drivers. I'd recommend a phased driver incentive program funded by accepting lower short-term take rates, with a clear ramp back once supply is established and churn normalizes.

Key Decision Framework

Match rate improvement → reduced rider churn → higher LTV → justifies short-term margin compression. Track: match rate, 30-day rider retention, driver monthly active rate, and net revenue per cohort.

Analytics · BNPL · Feature Scoping

Riverty — Building Analytics from Zero & Scoping a New Feature

A BNPL company with zero analytics infrastructure needs to become data-driven. Simultaneously, one team wants to add DHL home pickup returns. Where do you start, and how do you validate fast across multiple teams?

The Problem

No analytics baseline means no ability to validate ideas fast — every team is guessing. The goal is to increase app retention while multiple teams are working on competing initiatives. Without shared data infrastructure and a clear definition of retention, you risk running experiments that contradict each other.

My Thinking

First, define retention operationally before measuring anything — I'd define it as a user completing at least 2 tasks per week. Then instrument the product to capture the funnel. For the DHL returns feature, I'd resist building it end-to-end immediately. Instead: scope an MVP with a single courier partner, run a closed beta with a small user cohort, and measure return rate, NPS delta, and time-to-return before any further investment.

Key Clarifying Questions

What's the customer's lifetime value? What's average monthly revenue per user? What does the return rate look like today? Without these, you can't calculate whether the retention impact justifies the logistics cost of the feature.

Where I've built

Taproot Foundation
Remote, USA
2026 – Present
Product Consultant
  • Provide product direction to mission-driven organizations, defining priorities and improving delivery workflows across cross-functional teams.
ASTM International
Remote, USA
2025
Product Manager (Contract)
  • Streamlined ticket routing workflows in Jira, reducing engineering handoff time by 30% and accelerating feature delivery by 2 weeks per sprint.
  • Analyzed subscriber feedback and presented an embedded calculation tool prototype that influenced Q4 2025 roadmap priorities.
  • Assessed and recommended vendors for translation, chatbot, and AI tools to enhance Product Lifecycle Management workflows.
Coolbet / GAN Limited
Tallinn, Estonia
May 2023 – Jul 2024
Product Manager — Payments
  • Led cross-functional team of 6 to deliver payment integrations processing 400,000+ transactions post-acquisition across Scandinavian and European markets.
  • Owned all payment API partnerships (PayPal, Apple Pay, SEPA banks) — defining integration specs, coordinating engineering, and managing go-lives.
  • Orchestrated rollout of government-backed digital identity authentication for 57,000 users, reducing fraudulent account risk.
  • Defined payments roadmap across engineering and ops teams, doubling sprint velocity from 20 to 40 story points and reducing missed deadlines by 75%.
  • Owned wallet UX — payment method display, settlement buffers, dispute flows, and ops team tooling.
Zageno GmbH
Berlin, Germany
Jan 2021 – Mar 2023
Associate Product Manager
  • Led integration of virtual credit card solution with Silicon Valley Bank, reducing checkout friction by 50% for the operations team.
  • Identified and eliminated manual workflows (address correction, payment autofill) that were slowing fulfillment for a platform with 5,000+ SKUs.
  • Built a structured weekly finance report that significantly improved the finance team's ability to identify accounts payable issues early.
  • Collaborated with engineering and stakeholders to manage vendor RFPs and improve operational workflow speed and accuracy.
Ventures Platform
Abuja, Nigeria
Jul 2015 – Aug 2018
Business Analyst
  • Analyzed competitive landscapes and market opportunities across SaaS and payments portfolio companies, informing investment decisions.
  • Evaluated early-stage fintech startups from pre-seed through Series C — built the product intuition that drives my PM lens today.
  • Conducted 50+ customer discovery interviews and coordinated vendor partnerships, contributing to successful product launches.

What I bring

Product Management

Roadmapping Agile / Scrum Backlog Management Release Planning Stakeholder Alignment User Stories Acceptance Criteria

Working with Design & Engineering

Writing design-ready requirements Giving useful design feedback Figma (reading & annotating) User research in discovery Reducing design/eng handoff friction Wireframing to communicate intent Miro for collaborative workshops

HCI background means I speak both languages — I write specs designers can act on and give engineers context that reduces rework.

Payments & Platforms

Payment Integrations API Coordination Wallet Systems Identity & Auth SEPA / Bank APIs Vendor Evaluation

Analytics & Data

Product Analytics Funnel Analysis A/B Testing SQL Mixpanel Google Analytics

Tools & AI

Jira Confluence Excel LLM Workflows Prompt Design AI Prototyping

Cross-functional

Requirements Documentation UAT Coordination Sprint Planning Defect Tracking Go-to-market

The academic foundation

MS Product Development
Rochester Institute of Technology
2024 – 2025 · Rochester, NY
Solidifying product craft: strategy, delivery, and product-market fit across domains.
M.Eng. Human-Computer Interaction
Tallinn University
2018 – 2021 · Tallinn, Estonia
Thesis: ML-based recommender systems. Deep grounding in user research, interaction design, cognitive psychology, and information architecture.
B.Sc. Architecture
Covenant University
2010 – 2015 · Nigeria
Foundation in spatial reasoning, systems thinking, visual communication, and design process — the roots of my product instincts.

📜  Also certified: Google AI Essentials (2025)

Part-time musician, full-time curious

When I'm not building products, I'm making music. I write, record, and perform — with a single out and gigs around the city. The same instincts that make me a better PM — listening carefully, noticing what resonates, understanding what people feel — are the ones I bring to music too.

YouTube All Links
Latest release
Go!
Single · Fiyin Adeyera
"The same instincts that drive good product work — empathy, pattern recognition, telling a story people feel — show up in the music too."

Let's build something

Open to PM and UX/Product Design-adjacent roles in the NYC area or remote. I'm especially interested in teams building meaningful products at the intersection of technology and people.