I'm James Kariuki:
a
DevOps &
Cloud Engineer
"Building scalable, secure, and automated cloud infrastructures that power innovation."
Infrastructure Sculptor
Shaping resilient systems with code.
About me
I’m a software engineer turned DevOps and Cloud engineer with over 3 years of hands-on experience in designing, automating, and maintaining scalable infrastructures. My journey began with writing code and building applications, but my curiosity about scalability, deployment pipelines, and cloud-native systems led me into DevOps where I found my true passion. Over the years, I’ve specialized in bridging development and operations by implementing CI/CD pipelines, containerization strategies, and cloud automation that enable faster, more secure, and reliable software delivery.
Beyond the Code
I see technology as more than tools it’s a way to empower teams, accelerate ideas, and create systems that last. My focus is on combining software engineering principles with modern cloud and DevOps practices to deliver infrastructure that scales effortlessly.
I enjoy experimenting with automation, containerization, and infrastructure as code, constantly learning how to push the boundaries of efficiency and reliability.
Automating
Always evolving my automation workflows to eliminate repetitive tasks and speed up delivery.
Infrastrucutre
Never afraid to break and rebuild infrastructure if it means achieving stronger, more scalable systems.
Skills
From automating pipelines to cloud infrastructure, these are the skills I use daily to build, manage, and optimize modern infrastructure at scale.
Cloud Platforms
AWS · Azure
DevOps & CI/CD
Jenkins · GitHub Actions · GitLab CI · ArgoCD
Containers & Orchestration
Docker · Kubernetes · Helm
Infrastructure as Code
Terraform · Ansible · CloudFormation
Monitoring
Prometheus · Grafana · ELK Stack
Programming & Scripting
Python · JavaScript/TypeScript · Bash
Certifications
Scale
Automate
Deploy
Monitor
Secure
AWS re/Start Graduate
Amazon web services
Graduate of the AWS re/Start program with hands-on cloud training.
View Badge
AWS Certified Cloud Practitioner
Amazon web services
Certified in foundational AWS cloud services and project setup.
View BadgeExperience
An overview of the roles I’ve held and the professional journey I’ve built across different organizations.
Namarunu
Devops & Cloud Engineer
2022 - 2025
Worked as a DevOps Engineer responsible for building and managing scalable cloud infrastructure, implementing CI/CD automation, and integrating security and observability practices to improve deployment speed, system reliability, and cost efficiency.
Responsibilites and Archivments
GitHub ActionsJenkinsDockerKubernetes (EKS/AKS)TerraformAWS LambdaPrometheusGrafanaELK StackAWSAzure
Like Procurement
Full Stack Developer
2020 - 2022
Developed frontend and backend applications using Next.js, React, Node.js, and Django. Managed databases and improved API performance with caching and load balancing.
Responsibilites and Archivments
Next.jsReactNode.jsDjangoPythonMongoDBPostgreSQLRedisTypeScriptGraphQLTailwind CSS
Peculiarmarc LTD
Frontend Developer
2019 - 2020
Built responsive and interactive user interfaces using Next.js and React. Collaborated with designers to implement pixel-perfect designs, optimized performance, and ensured accessibility compliance.
Responsibilites and Archivments
Next.jsReactTypeScriptTailwind CSSSASSReduxReact QueryFramer MotionAxiosJestStorybookVite
MediumRead my technical blogs
Modern applications rely on strong foundations
infrastructure is the invisible engine that powers scalability, speed, and reliability in every project I build.
- Performance
- Reliability
- Flexibility
- Efficiency
My Projects
Branching stratergy
Designed a CI/CD pipeline to automate software releases across dev, stage, and prod environments. The workflow ensures reliable deployments with rollback strategies, reflecting how real-world apps move from code to production at scale.
AWSTerraformKuberneteseDockerGithub ActionsECR
Kubernetese Cost optimization
Built an end-to-end CI/CD pipeline deploying a 3-tier app on AWS EKS with Karpenter. The setup enables ultra-fast autoscaling, right-sized nodes, and spot instance optimization—delivering both speed and cost efficiency beyond the default Cluster Autoscaler.
AWSTerraformKuberneteseDockerArgoCDKarpenterEKS
Azure AKS Pipeline
Developed a CI/CD pipeline for a 3-tier app on Azure AKS using GitHub Actions, Terraform, and Argo CD. The setup provisions infrastructure with IaC, secures secrets in Azure Key Vault, and automates GitOps-based deployments from code to Kubernetes.
AzureTerraformKuberneteseDockerArgoCDGithub ActionsAKS
Cloud security
Built an automated threat detection system on AWS using GuardDuty, EventBridge, and Lambda. Suspicious activity triggers real-time remediation—like isolating EC2s, blocking IPs, and sending alerts—creating a self-healing, security-first cloud environment.
AWSLambdaGuardDutyS3SNSSecurity hubVPC
Global VPC Networking
Implemented AWS Transit Gateway peering to connect multiple VPCs across regions. This setup replaces complex one-to-one VPC peering with a central hub, enabling secure, scalable, and simplified multi-region communication in cloud environments.
AWSAmazon VPCTransit gatewayEC2Networking
My Services
Providing cloud and DevOps solutions that automate workflows and optimize infrastructure.
Cloud Infrastructure
I build and manage secure, scalable cloud environments tailored to business needs.
CI/CD Automation
I design automated pipelines that streamline code integration, testing, and deployment.
Cloud Migration
I migrate applications to the cloud and optimize for performance and cost.
Monitoring & Reliability
I implement observability and alerting to keep systems fast, reliable, and resilient.
Security & Compliance
I secure systems with strong access controls, protect data, and maintain compliance best practices.
Containers & Orchestration
I impliment Docker and Kubernetes to deploy and manage scalable, reliable applications.
AWS Cloud Applications
I build serverless applications on AWS, leveraging core services for scalability, security, and performance.
Software Development
I build modern fullstack applications with responsive frontends and reliable backends.
Contact
MeGet in touch
I’m always open to new opportunities, collaborations, and conversations. Feel free to reach out to me directly. I’d be glad to connect.
jamiekariuki18@gmail.com
+254719481930