COA
$ rails s -p 3000
$ git push origin main
$ docker-compose up
$ kubectl apply -f .
// SENIOR SOFTWARE ENGINEER

CHARLES

OPOKU-

AGYEMANG

Backend-heavy full stack engineer with 13+ years building and scaling products. Three-time CTO. Co-founder. Based in Accra, Ghana. Shipping systems that serve millions.

VIEW WORK ↓GET IN TOUCH →
Charles Opoku-Agyemang
Ruby on Rails
Node.js
React
AWS
PostgreSQL
Docker
TypeScript
Python
Redis
Kubernetes
ACCRA, GH · EST. 2011
RUBY ON RAILS✦NODE.JS✦REACT.JS✦AWS✦POSTGRESQL✦DOCKER✦KUBERNETES✦MULESOFT✦13+ YEARS✦3× CTO✦CO-FOUNDER✦ACCRA GHANA✦WATSON AI✦REDIS✦PYTHON✦JAVA✦RUBY ON RAILS✦NODE.JS✦REACT.JS✦AWS✦POSTGRESQL✦DOCKER✦KUBERNETES✦MULESOFT✦13+ YEARS✦3× CTO✦CO-FOUNDER✦ACCRA GHANA✦WATSON AI✦REDIS✦PYTHON✦JAVA✦
// EXPERIENCE

WHERE I'VE
BUILT THINGS

Senior Software Engineer

2021 – Present
Andela · Casper Sleep Inc · New York (Remote)
  • →Owned Casper's core fulfillment engine — the backbone of all order processing at enterprise scale.
  • →Shipped fulfillment intelligence features automating complex routing and exception handling.
  • →Engineered deep integrations with 3PL partners via Ruby on Rails + MuleSoft.
Ruby on RailsMuleSoftPostgreSQLRedisAWS

CTO

2020 – 2021
Kehillah Global · Mazeltov Group · Ghana
  • →Led technology strategy across transportation, real estate, and non-profit sectors.
  • →Built cross-domain operational tooling in Rails, Django, and Node.js.
Ruby on RailsDjangoNode.jsPostgreSQL

Senior Applications Developer

2020
Vodafone Group · Ghana
  • →Built Unik — automated customer care resolution tool for call and internet services.
  • →Rebuilt AI chatbot with Watson AI + Node.js/Java microservices, handling complex queries end-to-end.
Node.jsJavaWatson AIMicroservices

CTO

2018 – 2020
AFR Vendy · Ghana
  • →Led post-merger development of unified platform for radio ad placement globally.
  • →Managed team building in Node.js, Swift, Java, Go — backend, mobile, invoicing.
  • →Directed full cloud architecture on AWS for high-volume ad campaign reliability.
Node.jsGoSwiftJavaAWS

CTO & Co-founder

2016 – 2018
Vendyads · Ghana
  • →Co-founded global radio ad platform — acquired by AFRadio to become AFR Vendy.
  • →Built full web + mobile stack from zero. Ruby on Rails, Java, PostgreSQL.
Ruby on RailsJavaPostgreSQLMobile
RUBY ON RAILS✦NODE.JS✦REACT.JS✦AWS✦POSTGRESQL✦DOCKER✦KUBERNETES✦MULESOFT✦13+ YEARS✦3× CTO✦CO-FOUNDER✦ACCRA GHANA✦WATSON AI✦REDIS✦PYTHON✦JAVA✦RUBY ON RAILS✦NODE.JS✦REACT.JS✦AWS✦POSTGRESQL✦DOCKER✦KUBERNETES✦MULESOFT✦13+ YEARS✦3× CTO✦CO-FOUNDER✦ACCRA GHANA✦WATSON AI✦REDIS✦PYTHON✦JAVA✦
// PRODUCT PORTFOLIO

THINGS I'VE
SHIPPED

POSSITECH ECOSYSTEM
+ INDEPENDENT VENTURES
CIVIC TECH

Online Voting Platform

↗ vote.possitech.com

Secure, tamper-resistant digital voting for awards, elections, and polls. High-concurrency with real-time tabulation.

AWARDS TECH

Jury Management System

↗ jury.possitech.net

End-to-end platform for judging lifecycles — panelist onboarding, scoring, deliberation workflows, final results.

EVENTS

Event Management Platform

↗ event.possitech.net

Full-stack event operations: ticketing, check-in, real-time badge printing, attendee management.

GAMIFICATION

Wheel of Fortune

↗ wheel.possitech.com

Interactive prize wheel engine for live events and brand activations. Configurable per event in real time.

PRODUCTIVITY

Office Suite

↗ office.possitech.com

Internal operations and team coordination tool built for the Possitech ecosystem.

COLLABORATION

PossiNote

↗ possinote.com

Collaborative note-taking and knowledge management for teams who need structured, shareable documentation.

FASHION TECH

Dressmaker Platform

↗ dressmaker.possitech.com

Custom fashion ordering and production management — connecting clients, tailors, and fabric sourcing in one flow.

EVENTS TECH

Event Badging System

↗ Internal Tool

Deployed at 40 Under 40 Ghana & Africa, Ghana Manufacturing Awards. Real-time check-in and badge printing at scale.

CHARLES
// LET'S BUILD SOMETHING

GOT A PROBLEM
WORTH SOLVING?

I'm always open to interesting projects, co-founder conversations, and engineering leadership roles. Based in Accra — available globally.

SEND EMAIL ↗+233 277 11 99 19
13+
Years
3×
CTO Roles
40+
Team Members
∞
Lines of Code
© 2024 Charles Opoku-Agyemang
ACCRA, GHANA · AVAILABLE GLOBALLY