I build products, infrastructure, and the machinery required to know whether either is actually working.

500k+

users

2

mobile platforms

Web → native

incremental rewrite

HelpBnk's mobile app was a WebView shell around the existing web product. I turned it into a native React Native product and helped direct the wider rewrite: establishing the application shell and navigation, defining the boundary between legacy web and native surfaces, and rebuilding the home feed, search, notifications, deep links, and media.

The migration remained incremental because the existing product could not stop serving users while the replacement was built. The difficult work lived in the seams: routing between both runtimes, keeping feed rows cheap under load, transferring video between inline and fullscreen ownership, handling gesture interruption and startup, and instrumenting the app well enough to distinguish a working rewrite from a convincing demo.

10k+

daily active users

10m+

records processed / month

$4T+

represented capital

I worked across Lenox Park's data and mobile systems. On the data side, I built and operated ETL pipelines processing more than ten million demographic records each month, along with scoring, benchmarking, survey ingestion, anonymisation, audit, and multi-tenant reporting infrastructure. On the product side, I was the sole mobile engineer for Roundtables on iOS and Android.

That combination was unusually valuable. I could follow a product question from the interface, through the API and scoring model, to the data lineage and operational evidence behind the answer. It made reliability a property of the whole system rather than a concern assigned to one layer.

850k+

current users · Rise + Chaka

$8M

AUM during tenure

1.8% → 0.4%

reported crash rate

I worked across the Risevest mobile app and the investment systems behind it. The product connected Nigerian users to dollar-denominated assets, so ordinary-looking flows carried foreign exchange, custody, compliance, and cross-border payout constraints. I helped ship the Naira Currency Vault and payout flows across five or more countries, alongside biometric access, MFA, secure storage, and native compliance checks.

Rise and Chaka now serve more than 850,000 users; during my tenure, Rise managed roughly $8 million in assets. I introduced CodePush for controlled delivery, added Detox coverage around critical paths, and tightened native error handling as the reported crash rate moved from 1.8% to 0.4%. On the systems side, idempotent endpoints and queue-based retries made payout failures safer to recover from.

I co-developed Lykke Business Wallet and Bloom in a React Native and Expo monorepo, integrating shared native capabilities across iOS and Android. My work covered biometric authentication, automated testing, accessibility, a Storybook-backed design system, and the native modules beneath the shared interface.

I also worked on BBVA Trader CFD, where real-time market data, third-party trading SDKs, CI/CD, security, and rendering performance met in the same product. The useful engineering decisions were the ones that kept those concerns separate enough to change safely.

I worked on Dozy Health, a mobile product built around Cognitive Behavioural Therapy for Insomnia. The product translated a multi-week treatment programme into software: sleep logging, structured guidance, personalised recommendations, and proactive follow-up intended to help people stay with the treatment.

This was a small-team product engagement, so the work sat close to the relationship between the treatment model and the interface carrying it. The service later stopped operating, but its original website, Android launch record, and signed application package remain public.

I co-founded Bridge and led engineering across its SME marketplace: backend APIs for vendor discovery, procurement, orders, and payments; the Bridge and Bridge Pro apps; and the companion web product. I defined the technical roadmap with my co-founders, managed AWS delivery and CI/CD, and mentored engineers across frontend and backend.

It was a parallel founder role, and it gave me direct responsibility for the distance between a business assumption and the system needed to test it. Transaction integrity, operational cost, delivery speed, and product scope were parts of the same decision.