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Ideas into practice

Senior Product Manager

David Mensah

I ship products users love and businesses need.

Nairobi, KenyaExplore the work
Portrait of David Mensah

Decisions & outcomes

Intercom Inbox Redesign

Problem
Support agents were spending 35% of their time on navigation and context-switching within the inbox — not on customers.
Approach
Led a 6-month redesign of the conversation inbox, consolidating 4 separate views into a unified workspace with AI-powered prioritisation.
Outcome
Reduced average handle time by 22% and increased agent NPS from 34 to 61. Shipped to 25,000+ business accounts.
  • Figma
  • SQL
  • Amplitude

Paystack Payment Links

Problem
40% of Paystack merchants had no technical ability to integrate the API — they could not accept digital payments at all.
Approach
Defined and shipped Payment Links — a no-code payment page product that required zero technical setup.
Outcome
Onboarded 50,000+ non-technical merchants in 6 months. Generated $2M ARR in the first year. Now the #1 acquisition channel for SMBs.
  • SQL
  • Mixpanel
  • Figma

My perspective

Senior Product Manager with 6 years building B2B SaaS products. I bridge the gap between user needs and business outcomes — I am as comfortable in a SQL query as I am running a discovery sprint. Previously at Intercom and Paystack. Based in Nairobi.

Experience

  1. 2022 – 2024

    Senior Product Manager — Support Experience

    Intercom

    • Owned the inbox product used by 25,000+ support teams globally
    • Grew feature adoption from 45% to 78% through targeted onboarding improvements
    • Managed cross-functional team of 8 engineers, 2 designers, and 1 data analyst
  2. 2019 – 2022

    Product Manager — Merchant Tools

    Paystack

    • Launched Payment Links from 0 to 50,000 merchants in 6 months
    • Ran 60+ customer interviews per quarter to inform roadmap decisions
    • Coordinated product launches across Nigeria, Ghana, South Africa, and Kenya

Skills & practice

Data-informed product manager with a track record of shipping features that move core business metrics.

Strategy

  • Product Strategy
  • Roadmapping
  • OKRs
  • Go-to-Market

Research

  • User Research
  • A/B Testing
  • Usability Testing
  • Customer Interviews

Analytics

  • SQL
  • Amplitude
  • Mixpanel
  • Looker

Tools

  • Figma
  • Jira
  • Notion
  • Linear

Additional skills

  • Stakeholder Management

Continue the conversation

Let’s connect.

David Mensah | Senior Product Manager Portfolio