I've shipped products used by millions. Now I build the parts that can't break: checkout people trust, agents that spend money safely, and proof you can check.

Engineer. Founder. Builder.

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The story so far

  1. Built behind the scenes.

    Freelancing for startups and established brands, I built products now used by millions.

  2. Inside the Big Four.

    KPMG technology advisory. I built an internal chatbot tool, and my product insights helped shape onboarding for 100K+ new users.

  3. Paper into software.

    Africa Resource Company. Digitised client services with React, Node.js and MySQL. The client base grew 30%.

  4. Across the chain.

    Montech Studio. Led front-end for embeddable dApps and designed a cross-chain platform for social tokens and NFTs. Usage up 60% in six months.

  5. Leading the build.

    Troyka. Led a 14-person team building AI that reads attention and emotional response to ad campaigns, one of several teams I've led.

  6. The checkout in your pocket.

    Prep Kitchen, a meal service that has been feeding people for over ten years. I lead checkout and payments in the mobile app, alongside the web and API teams. Mobile conversion up 12%.

  7. And after hours.

    Prep Kitchen is my job. In my spare time I build my own products: Buyrail and Sartor through Prudiq, my studio, plus Fairflat, Flawnote, and Hiofu, where I'm co-founder and CTO.

What I'm building.

Buyrail

Purchasing that runs itself.

For multi-location companies with no procurement team.

  • Intake in Slack. Requests arrive in Slack or email and agents turn them into orders.
  • Finance sees the exceptions. Policy-checked approvals route only what breaks the rules.
  • Invoices that match themselves. Three-way match, then a draft bill in QuickBooks.

Models parse and explain. Deterministic code decides. Humans approve what matters.

buyrail.app ›
  1. 01Slack or email request
  2. 02Agent parses the order
  3. 03Policy engine approves or routes
  4. 04Three-way match
  5. 05Draft bill in QuickBooks

Synced to QuickBooks. A person approved the payment.

Sartor

Inspiration you can actually wear.

  1. Screenshot it. Any outfit from Instagram, TikTok, Pinterest or the street.
  2. See it on you. Rebuilt on a model shaped to your measurements.
  3. Shop your size. Every piece in your size and budget, from shops that deliver to you.

Models handle judgement. Code handles what must never be wrong: sizes, stock and budget maths.

sartor.style ›
Hiofu

Your CV, now with proof.

  • Proof, not claims. Every line can carry evidence: the work, the people, the results.
  • Your name comes last. Employers judge the work first.
  • Apply Rail. One SDK puts Apply with Hiofu on any job board: OAuth, consent, signed webhooks.
hiofu.com ›
FAIRFLAT

A rota that runs itself.

One shared record of chores, bills, reminders and house rules, so nobody argues from memory. Used by 1,000+ people across UK flatshares, student houses, couples and families.

  • Fairness history. Who paid, who cleaned, and what keeps repeating.
  • For letting agents. A partner platform for agencies, landlords and building managers.
  • With Student Unions. A creator programme that brings the app onto campus.
  • 10% to housing charities.
fairflat.co.uk ›
Flawnote

Small flaws. Better products.

Anyone can report a problem without diagnosing it, from one link with no account. The team gets one inbox to triage, fix and follow up.

flawnote.app ›
Oreanu Olayemi

Hi, I'm Oreanu.

A software engineer and founder in London. I'm happiest where the spec is still being written: payments, AI agents with guardrails, 3D and computer vision, and products built from nothing.

First Class in Computer Science. MSc in Artificial Intelligence, with Distinction. Several teams led, and 26 products and counting.

Let's build what's next.

Email meLinkedInGitHub