David Olatunji, Portfolio ’260%
Technical Product Manager · Product Owner · Lagos, Nigeria

I turn fuzzy ideas into products people actually use, and run the teams that ship them. Currently: an AI marketing OS, an agent registry, and Nigeria’s first verified solar marketplace.

Selected work.

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01Ellum AI, An AI operating system for marketing teams.Ellum AIMarketing automation · AI agentsWeb + mobile apps · 2024 -
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02Mottars, Buy or rent cars, source parts, find repairers.MottarsAutomotive · Cars, parts and repairers · NigeriaWeb + PWA · Nov 2025 —
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03Vettika, First-round interviews, on autopilot.VettikaHiring · Voice AI screeningWeb app · 2026
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04SolarBuilders, Nigeria's first verified solar marketplace.SolarBuildersRenewable energy · NigeriaMarketplace · 2026
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05Breadcrumbs, Drops a trail as you walk. Walks you back along it.BreadcrumbsNavigation · Personal safety, offline-firstMobile app iOS + Android · May 2026 —
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I write the roadmap, prototypethe thing, and keep engineering,design and business pointedat the same outcome.

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Years leading product
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Client products led
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People led across teams
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Participants reached at HNG
More about how I work

Resources.

The whole hub →
How to Create Effective GitHub Issues for Feature Updates previewHow to Create Effective GitHub Issues for Feature UpdatesThe issue is the unit of work a team actually reads. What belongs in one, what does not, and why a vague ticket costs more than the feature it describes.Medium
I ship the prototype before the PRDA document describes an argument. A prototype ends it. Why the fastest way to align a team is usually to build the smallest possible version of the disagreement.Process · 4 min
Cutting onboarding time by 60% was not an AI problemWe put AI-driven search into an onboarding flow and completion time dropped by more than half. The interesting part is what the AI was actually fixing.Case notes · 5 min
All writing

Let’s buildsomething absurd

avi@nexprove.com
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