Available for work, full-time, consulting & training

AWS Community Builder · Founder, NextGen Playground · DevOps Educator & Trainer

DevOps & Cloud Infrastructure Engineerbased in Cameroon, building for teams worldwide.

I'm Durrell Gemuh, a senior DevOps and Cloud Infrastructure Engineer with 5+ years designing, automating, and operating production-grade infrastructure across AWS and GCP. AWS Community Builder, DevOps trainer, and founder of NextGen Playground.

5+
Years in DevOps
5000+
Sites supported
8+
Organisations
6
Countries
170+
Developers enabled
100+
Students mentored

Featured Open-Source Projects

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An interlinked ecosystem that composes into one platform lifecycle, provision, build, deliver, operate, secure.

AWS DevOps Agents (Bedrock)
AI / Cloud OperationsOpen source

AWS DevOps Agents (Bedrock)

A collection of 5 AI-powered agents for cloud operations, DevOps, Cost, Security, Incident, and IaC Review, built on AWS Bedrock with production guardrails.

AWS BedrockLambdaTerraformDynamoDBAPI Gateway
CI/CD Pipeline Templates
CI/CDOpen source

CI/CD Pipeline Templates

Reusable GitHub Actions workflows, build/test, security scan, build-push-sign (cosign), deploy, with a sample app that uses them.

GitHub ActionsDockercosignTrivyPython
Observability Stack
ObservabilityOpen source

Observability Stack

Metrics, logs, and traces as code: Prometheus, Grafana, Loki, Tempo, Alertmanager via Docker Compose, plus Helm values for Kubernetes.

PrometheusGrafanaLokiTempoAlertmanager

Tech Stack

Cloud

AWSGCP

Containers

KubernetesDockerHelmArgoCD

IaC

TerraformAnsiblePulumi

CI/CD

GitHub ActionsJenkinsGitLab CICloud Build

Observability

PrometheusGrafanaDatadogCloudWatchLokiTempo

Security

IAMWAFZero TrustVaultAWS Security HubCloudflaretfsecTrivy

Practices

GitOpsDevSecOpsFinOpsSRE

Cloud Infrastructure Engineering

Design and build production-grade infrastructure on AWS and GCP, secure, automated, and built to scale.

DevOps Consulting

CI/CD pipelines, Kubernetes platforms, Infrastructure as Code, and cloud cost optimisation for teams of any size.

Technical Training & Workshops

Hands-on team training and masterclasses on Kubernetes, Terraform, CI/CD, observability, and DevOps practices.

1:1 Mentorship

Career guidance and technical mentorship for engineers breaking into or levelling up in DevOps and cloud.

What people say

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From clients, colleagues, and engineers I've trained across different organisations and continents.

Overall, the Liora training is structured and practical. The training sessions are helpful and they don't just focused on theory, it has also provided hands-on practice. The recap sessions are also useful for catching up on details we missed and making sure we were all on the same page.
Ru HuangTraining participant · Liora DevOps training
First, I'd like to thank Durrell for his support throughout the training. I particularly appreciated how he explained DevOps concepts and reinforced them with practical demonstrations, which made the material easier to understand and apply. All the recap sessions were informative. The three-day project recap was especially valuable, as it helped me improve my project and better connect the course concepts to real-world applications.
Ehsan OthmanTraining participant · Liora DevOps training
The recap sessions were overall very helpful in reinforcing and structuring the content. In particular, I found the project-based sessions especially valuable, as they translated theory directly into a practical context. What worked particularly well for me was the combination of short theoretical inputs followed by immediate application within the project. This significantly deepened my understanding, especially in areas such as Kubernetes and infrastructure.
KevinTraining participant · Liora DevOps training
Overall, I really enjoyed the training. The recap sessions were especially helpful because they reinforced the key concepts and gave us a chance to ask questions about topics that weren't completely clear the first time around. The project sessions were probably the most valuable part for me, building a complete DevOps project from infrastructure provisioning with Terraform and Ansible to CI/CD, Kubernetes, monitoring, and backups helped connect all the individual topics into one practical workflow. I also appreciated that the sessions were interactive and focused on real-world scenarios rather than just theory. Thanks again for all the support throughout the training, it made a big difference!
NimaTraining participant · Liora DevOps training
All in all I am really satisfied working with the Liora Team, for technical problems I often contacted our Cohort Leader Durrel, and got some answers immediately. The explanations from Durrel were always on point and helped me understand some complex tasks pretty easily.
Kamil BurukTraining participant · Liora DevOps training
Durrell completely transformed our infrastructure. What used to take our team days to provision now happens in minutes. He hardened everything with Cloudflare, CDN, WAF, and DDoS protection, so our sites are fast and available worldwide. The platform he built supports over 5,000 sites today and is load-tested to scale well beyond that.
Engineering ManagerBlueWindow Ltd, Malta

Latest Writing

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How I think about engineering

Automation first

If a human is doing it more than twice, a machine should be doing it. Manual processes are technical debt in disguise.

Observability everywhere

A system you can't observe is a system you can't trust. Metrics, logs, and traces are how you sleep at night.

Infrastructure as code

Infrastructure that can't be version-controlled, reviewed, and reproduced will eventually fail you silently.

Knowledge sharing

Strong engineering cultures are built on documentation and shared learning, not individual heroics.

Currently working on

Founder & lead engineer at NextGen Playground, a hands-on DevOps learning platform (nextgenplayground.org)
Talent Forge, mentoring engineers from zero to deploying real infrastructure
AWS Community Builder (Cloud Operations), contributing technical content
Speaking & writing on Kubernetes, CI/CD, cloud cost, and DevOps careers in Africa (90+ published articles)

Let's build something reliable.

Open to DevOps & cloud roles, consulting, training, and speaking.