Product thinking
Start with the user problem and shape a useful outcome.
Product Engineer
Engineering solutions to real problems.
Have a problem you need software to solve?
Based in NigeriaBuilding for the long run
01 / A little about me
Engineering products from the inside out.
I'm Nehemiah, product engineer. I build software that solve real problems — from first prototype to production. I care as much about the product and user experiences as I do about the code.
04
Featured projects
100%
Reliable execution
NehemiahProblem . Product . Impact
nehemiah / profileCurrent
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End-to-end building
Connect application code, APIs, and delivery into one product.
Production ownership
Make products observable, reliable, and ready to evolve.
02 / The toolbox
Tools for the whole product.
From application code to infrastructure, tools I use to get products shipped and keep them working.
Go
Python
FastAPI
React
Vite
TypeScript
Git
Figma
Playwright
OpenCode
PostHog
Bruno
Go
Python
FastAPI
React
Vite
TypeScript
Git
Figma
Playwright
OpenCode
PostHog
Bruno
Go
Python
FastAPI
React
Vite
TypeScript
Git
Figma
Playwright
OpenCode
PostHog
Bruno
Go
Python
FastAPI
React
Vite
TypeScript
Git
Figma
Playwright
OpenCode
PostHog
Bruno
Terraform
Docker
AWS
Linux
PostgreSQL
Prometheus
Grafana
Redis
NGINX
Sentry
Terraform
Docker
AWS
Linux
PostgreSQL
Prometheus
Grafana
Redis
NGINX
Sentry
Terraform
Docker
AWS
Linux
PostgreSQL
Prometheus
Grafana
Redis
NGINX
Sentry
Terraform
Docker
AWS
Linux
PostgreSQL
Prometheus
Grafana
Redis
NGINX
Sentry
03 / Selected work
Projects I have worked on.
Products shaped around real operational needs — from clearer energy decisions to trustworthy payment systems and dependable releases.
Energy01 / 04
Intell
Energy monitoring for African SMEs and solar installers. Intell turns solar and inverter data into clearer decisions about system performance and energy costs.
TypeScriptNestJSNext.jsPostgreSQLRedis
Visit IntellFintech02 / 04
Payment Gateway
A Go payment gateway that runs the full card lifecycle — authorize, capture, void, refund — behind a strict domain state machine, with idempotent replays, writes persisted before the bank is called, and resilient bank retries.
GoGinPostgreSQLDocker ComposeOpenAPI
View on GitHubAutomation03 / 04
SwiftDeploy
A declarative deployment CLI that uses one YAML manifest to configure container releases and validate rollouts with OPA policies and Prometheus metrics.
PythonDockerOPAPrometheusRego
View on GitHub
Reliability04 / 04
ObserveX
An observability platform unifying metrics, logs, and traces with SLO management, DORA analytics, and automated error-budget alerting.
TerraformGrafanaPrometheusLokiTempo
View on GitHub04 / Notes from the field
Good systems leave room to think.
Writing in progress
Notes on product engineering, making technical systems useful, and learning from software in production are on the way.