Available for selected projects and opportunities

I build thoughtful digital products that perform.

I'm Okechukwu Samuel Owhondah, a Frontend / Full-Stack Software Engineer focused on high-performance interfaces, scalable applications and complex data-driven products.

Explore my work Download résumé GitHub

product.tsx

type Product = {

clarity: true;

performance: "fast";

architecture: "scalable";

};

export function build

(problem: Complex) → Product

SYSTEM / HEALTHY

UXClear

STATEStable

LOADFast

5+ yearsBuilding software

Frontend + full-stackAcross the product stack

React · Next.js · TSPrimary toolkit

Remote experienceUK · NL · Nigeria

Selected work

Products shaped around real problems.

A selection of product work spanning browser tools, event technology and payments—presented with the engineering decisions that matter.

PATIENT OUTCOMES / LIVE

Recovery score84+12%

124 Responses18 Procedures92% Complete

Digital health · Clinical analytics

Skye Health / PROMease

A cloud platform that combines clinical data with patient-reported outcomes to turn feedback into actionable surgical insights.

Role: Software engineer
Engineering focus: Making procedure-specific outcome collection, care timelines, and clinical analysis work as one coherent workflow.
Delivered: Secure PROM collection, real-time patient data, and analytics designed for clinical governance and research.

Healthcare dataFHIRSNOMEDAnalytics

CareCalendarMay 2026

MTWTFSS12345678910111213141516171819202122232425262728

Next pathwayENT follow-up · 10:30

Healthtech · Pathway management

Health Anchor

An intelligent digital pathway platform for automating clinical appointment booking and reducing operational friction.

Role: Software engineer
Engineering focus: Supporting configurable healthcare pathways while keeping booking, referrals, and clinical data interoperable.
Delivered: CareCalendar booking, reporting, EHR interoperability, and APIs for integration into existing services.

Care pathwaysFHIRSNOMED CTAPIs

LIVE / LAGOSRIE
NIGHTS24 · 08

ADMIT01

Payment verified

Event technology · Web app

Rie Ticket

An event ticketing experience built around a clear purchase flow and online payments.

Role: Frontend engineer
Engineering focus: Keeping event discovery and payment interactions coherent across the purchase journey.
Delivered: A React ticketing product with Paystack payment integration.

ReactPaystackJavaScript

PAYMENT OVERVIEW₦ 48,250.00

ElectricityCompleted

InternetProcessing

Fintech · Full-stack

Billza

A utility and bill payment platform connecting everyday payments to provider services.

Role: Full-stack engineer
Engineering focus: Coordinating payment and utility-provider integrations behind a dependable user flow.
Delivered: A Django-based platform integrated with Monnify and Tiqwa.

DjangoMonnifyTiqwa

Experience

Engineering across products and teams.

A concise view of roles where I have shipped interfaces, services, integrations, and delivery systems.

Full career story

Remote

Netherlands

Frontend Engineer

Zimmerman B.V

Built data-rich React interfaces and the frontend systems that support them.

ReactTypeScriptD3EChartsCypress

Remote

Nigeria

Full-Stack Engineer

Techsemester

Shipped product features across React applications and Django services.

ReactDjangoFirebaseDockerAWS

On-site

Lagos, Nigeria

Full-Stack Engineer

Alajo

Worked on location-aware product features, operations tooling, and customer communication.

Next.jsFirebaseGoogle MapsChart.js

Capabilities

Useful depth, across the stack.

Technology is supporting detail. The focus is what the system needs to do well.

Frontend engineering

Scalable component architecture, responsive systems, accessible interaction, and performance-minded delivery.

React · Next.js · TypeScript · Tailwind CSS

Product interfaces

Turning complex workflows into clear, resilient interfaces that are comfortable to use and maintain.

Design systems · Auth0 · Strapi · i18n

Data visualisation

Interactive visual explanations for dense operational and product data.

D3 · Apache ECharts · Chart.js

Backend and APIs

Practical service design, authentication, integrations, and real-time features.

Django · FastAPI · NestJS · PostgreSQL

Testing and quality

Automated checks and engineering habits that make change safer and releases calmer.

Cypress · TDD · TypeScript · GitHub Actions

Infrastructure and delivery

Containerised applications and repeatable paths from code to production.

Docker · AWS · CI/CD · Redis

Engineering principles

How I make decisions when the answer is not obvious.

Build for users, not screenshots.

Make complex systems understandable.

Treat performance as a product feature.

Design components for change.

Prefer dependable engineering over unnecessary complexity.

Latest writing

Notes from the work.

Practical explanations of testing, backend systems, security, and the decisions behind dependable software.

View all articles

Feb 17, 2024·6 min read

Scheduling cron jobs with pg_cron and pg_net

Use native Postgres scheduling and HTTP calls to automate workflows without extra servers.

Feb 03, 2024·8 min read

How RSA works?

A concise, practical explanation of RSA keys, encryption, and signatures.

Jan 18, 2024·7 min read

Cypress and Material UI scroll behavior issue

Why Cypress tests can miss MUI scroll containers and how to stabilize scrolling assertions.

Start a conversation

Have an ambitious product to build?

I'm open to frontend, full-stack and product engineering opportunities, as well as selected freelance collaborations.

Send an email LinkedIn GitHub Résumé