Open to Backend & DevOps roles · Remote-friendly

Building systems that scale, ship, and hold.

I'm David Cole — a Backend Engineer & DevOps engineer from Freetown, Sierra Leone. I architect APIs, own cloud infrastructure, and ship production software used by real people.

See my work ↓ Let's talk →

// about

Engineer by craft, builder by nature

I specialize in backend architecture and cloud infrastructure — the kind of work that keeps systems running at 3am. From designing REST APIs and managing PostgreSQL schemas to Dockerizing workloads, configuring CI/CD pipelines, and wiring up observability with New Relic. I think in systems: queues, caches, failover, and health checks. If it touches the server, I'm comfortable owning it.

// location

Freetown, Sierra Leone 🇸🇱

// availability

Open to work · Remote

// specialization

Backend Engineering · DevOps · Cloud

// portfolio

your-portfolio.com ↗

// live projects

Shipped to production

CoursePaddy

coursepaddy.com

● Active

Lead Backend Engineer & DevOps

A full-featured e-learning platform where students take courses and earn certificates, instructors design and publish content, and admins audit and approve the course catalogue.

Architected the backend API from scratch — course lifecycle, enrollment engine, and certificate generation
Integrated payment processing for course purchases and instructor payouts
Built real-time notifications and in-app messaging with WebSockets
Set up New Relic observability — distributed tracing, error monitoring, and performance dashboards
Owned cloud deployment, CI/CD pipelines, and all server infrastructure

Java Spring Boot Docker New Relic PostgreSQL WebSockets Payments CI/CD REST API

Backend Developer · Team of 5

A telemedicine platform enabling patients to book appointments with doctors, receive prescriptions and follow-ups, store medical history, and securely share documents with providers.

Built appointment scheduling, booking APIs, and doctor–patient consultation workflows
Implemented secure medical document sharing with role-based access controls
Integrated payment processing for appointment billing and consultations
Added Redis caching on high-frequency queries — dramatically improved response times
Set up New Relic for distributed tracing and system health monitoring

Java Redis New Relic PostgreSQL JWT Auth Payments Secure File Sharing REST API

Visit live site ↗

// tech stack

What I work with

Backend

Java Spring Boot Node.js Python C# ASP.NET REST APIs

DevOps & Cloud

Docker Kubernetes AWS GitHub Actions CI/CD Nginx Linux

Databases & Caching

PostgreSQL Redis MySQL

Security, Messaging & Observability

New Relic JWT Spring Security WebSockets Kafka RabbitMQ Stripe / Payments

// availability

Open to opportunities

Let's build something together.

I'm actively looking for my next role as a Backend or DevOps Engineer. I bring real production experience, end-to-end ownership, and a systems-first mindset. Remote-friendly, fast responder.

Backend Engineer DevOps Engineer Remote · Hybrid

Download CV Email me →

Building systems that scale, ship, and hold.

Engineer by craft, builder by nature

Shipped to production

What I work with

Open to opportunities

Get in touch