Sylvester
Kafui Kofi Darkey
AWS- and GCP-certified DevOps and Cloud Engineer building secure, fully automated infrastructure and delivery pipelines. In production, I have cut change failure rate by 30%, incident detection time by 40%, and pipeline execution time by 35%.
DevOps and cloud engineering with measurable outcomes.
I build secure infrastructure, CI/CD pipelines, observability systems and cloud automation across AWS and GCP. My work is grounded in Terraform, CloudFormation, GitOps, Kubernetes, Python, and the kind of practical documentation that helps teams move faster without creating operational debt.
Most recently at Cloud Fruition, I've reduced change failure rate by 30%, improved incident detection time by 40%, and cut environment setup from two days to under two hours. I also build MLOps pipelines and live client websites, bringing the same delivery discipline to product-facing work.
Two ways I can help
Platform reliability on one side, a strong web presence on the other — both built the same way: fast, clean, and made to last.
DevOps & Cloud Engineering
For teams whose deployments are slow, fragile, or hard to observe.
- CI/CD pipeline design, optimisation & quality gates
- Infrastructure as Code — Terraform, CloudFormation
- Kubernetes & container orchestration
- Observability — Prometheus, Grafana, Loki, ELK, CloudWatch
- Cloud security, IAM, SSO, MFA & audit-ready governance
- MLOps pipelines for training, serving, monitoring & retraining
Website Development
Client websites and full-stack web apps, built, deployed and maintained end to end.
- Business & marketing websites
- Full-stack web applications
- Hosting, domains & deployment included
Skills & tooling
Grouped the way I'd tag them in a manifest.
Cloud & Infra
Delivery & Automation
Observability & Security
Programming
Data & Networking
MLOps & Practice
Experience
Every stage below shipped a measurable improvement — not just a change.
DevOps / Cloud Engineer
Deployed- $Re-architected Terraform infrastructure with GitOps workflows and dev-to-production parity across AWS and GCP client environments — reduced change failure rate by 30% (DORA).
- $Built a full observability stack with Prometheus, Grafana, Loki & CloudWatch — cut mean time to detect incidents by 40%.
- $Shipped self-service IaC modules and startup scripts — cut environment provisioning from 2 days to under 2 hours.
- $Designed and built CloudGuard in Python (Django REST Framework) and React — near real-time GCP security misconfiguration detection.
- $Implemented blue/green & rolling releases with automated rollback on failed health checks.
- $Administered IAM, SSO, MFA and least-privilege access across AWS/GCP accounts — zero unauthorised access incidents.
Freelance Web Developer
Ongoing- $Design, build and deploy client websites with HTML, CSS & JavaScript, hosted on Render.
- $Handle the full cycle — design, build, deployment, and ongoing maintenance/updates post-launch.
- $Delivered live production sites including StateStreet Ghana Limited and Thinking Cap Consult.
DevOps Engineer — National Service
Completed- $Designed and maintained CI/CD in GitHub Actions and Jenkins for three teams, integrating SonarQube — reduced average pipeline execution time by 35%.
- $Enforced IaC governance with Terraform & CloudFormation — cut environment drift incidents by 50%.
- $Built reusable IaC modules & runbooks for 20+ engineers — reduced support ticket volume.
- $Implemented IAM least-privilege & audit documentation — 100% pass rate across all quarterly compliance audits.
- $Mentored junior engineers on Kubernetes, Terraform & pipeline design.
Backend Developer
Completed- $Engineered backend services in Python and Node.js (Express, MongoDB, REST) for a video hosting platform covering upload, storage and streaming.
- $Implemented JWT authentication & role-based access control — zero unauthorised access post-launch.
IT Intern
Completed- $Provided first-line IT support — reduced average resolution time by 25%.
- $Resolved DNS, DHCP & LAN faults, improving network reliability across departments.
- $Managed Windows Server & Active Directory access, and Google Workspace administration.
IT Intern
Completed- $Delivered technical support, Windows OS deployments and software installations across departments.
- $Documented support tickets, fault patterns and fixes in a structured knowledge base, reducing repeat incidents.
Projects
A mix of platform engineering builds and websites shipped for clients.
CloudGuard
GCP security monitoring platform planned from use cases, flowcharts and architecture drawings, with OAuth access, threat rules and severity-based alerting to Slack, email and SMS.
SkillBoost Platform
Production-grade AWS Terraform stack — VPC, ECS Fargate, ALB, Route53, ACM and RDS PostgreSQL — with VPC endpoints, least-privilege IAM and pilot-light disaster recovery.
Task Management System
Serverless task platform on AWS with real-time notifications, role-based access, deadline reminders and S3-backed storage.
EPL Score Prediction
End-to-end MLOps pipeline for automated model training, serving, monitoring and retraining.
Smart Water Metering System
Final-year KNUST project managed from concept to delivery: AWS IoT Core, TypeScript dashboard and Flutter mobile app, reducing manual meter-reading errors by 40% in testing.
StateStreet Ghana Limited — Website
Premium fashion retail website designed, built, deployed and maintained for a live production client.
Thinking Cap Consult — Website
Consultancy website designed and built end to end, deployed and live in production.
Certifications
Cloud & security certifications, current as of 2026.
Google Cloud Professional Cloud DevOps Engineer
Google Cloud Associate Cloud Engineer
AWS Certified Solutions Architect — Associate
AWS Certified Developer — Associate
AWS Certified Cloud Practitioner
AWS Academy Graduate — Cloud Architecting & Security
Cisco Cybersecurity, Networking & Security
Docker & Kubernetes: The Complete Guide
Terraform for AWS — Advanced
Education
B.Sc. Computer Engineering
Kwame Nkrumah University of Science and Technology (KNUST) · 2021 – 2024Final-year Project Manager
Smart Water Metering System · AWS IoT Core, TypeScript dashboard and Flutter mobile appLeadership & activities
Have infrastructure to fix, or a site to build?
I'm looking for DevOps and cloud roles where I can improve reliability, security and engineering speed, and I also take on focused website builds.
darkeykafui@gmail.com