Cloud & DevOps Engineer

I architect reliable infrastructure that empowers teams to move at scale.

I design enterprise-grade cloud platforms, architect resilient CI/CD systems, and lead platform modernization initiatives. Specialized in AWS, Azure, Kubernetes, and infrastructure-as-code patterns that scale.

Available for DevOps, platform, and cloud engineering opportunities
20+
Years in tech
AWS + Azure
Cloud platforms
CI/CD + IaC
Ops impact
ProfileAvailable
DS
Duminda Sumanasinghe
DevOps Engineer
CI/CD pipelines · GitOps · Automation
AWS · Azure · Kubernetes · Terraform
DevSecOps and infrastructure security
Melbourne, Australia

About

Helping teams build lasting engineering foundations that scale with their ambitions.

Cloud-native platform architecture and design
Secure, automated delivery pipelines
Infrastructure reliability and observability

With over 20 years across electronics, telecommunications, software engineering, and cloud operations, I've built deep expertise in infrastructure modernization and platform reliability.

My focus is architecting systems that enable teams to deliver with velocity and confidence—through automated CI/CD, resilient cloud platforms, and engineering practices that scale.

Focus areas
  • CI/CD architecture and delivery automation
  • AWS and Azure cloud platform engineering
  • Kubernetes orchestration and container operations
  • Infrastructure-as-code (Terraform, Ansible, CloudFormation)
  • DevSecOps and security hardening

Experience

A proven track record building and scaling platform engineering teams and infrastructure.

2020 — Present
Cloud
DevOps Engineer
Cloud & Platform Engineering

Leading automation, pipeline design, secure deployment workflows, and infrastructure standardization across cloud-native environments.

2018 — 2020
IT
Cloud Systems Administrator
IT Infrastructure

Designed and maintained scalable systems, improved operations, and automated repetitive tasks across services and environments.

2015 — 2018
Product
Software Developer
Product Engineering

Delivered application code and technical support solutions while building a strong foundation in software development and operational support.

Selected work

Real-world projects demonstrating platform architecture, delivery at scale, and operational impact.

End-to-End CI/CD Pipeline Architecture

case study

Architected and deployed a production-grade continuous delivery system integrating Jenkins orchestration, code quality gates (SonarQube), containerization (Docker), and GitOps-driven deployment (ArgoCD + Kubernetes), eliminating manual release processes.

📊 Impact
60% reduction in release cycle time. Consistent quality gates across all deployments. Teams gained the ability to ship changes with confidence.
JenkinsDockerKubernetesArgoCDSonarQube

AWS Lambda-Driven Automation Platform

case study

Built an event-driven architecture leveraging S3 events, Lambda functions, and SNS notifications to create a serverless automation pipeline, eliminating batch job windows and enabling real-time platform responses.

📊 Impact
Real-time event processing with 99.9% reliability. Reduced operational overhead by 40%. Enabled self-service automation for the engineering team.
AWS LambdaS3SNSCloudWatchPython

Azure Enterprise Release Management

case study

Modernized legacy deployment processes into a standardized Azure DevOps release pipeline with ACR image management, AKS orchestration, and multi-stage approval workflows, ensuring compliance and operational consistency.

📊 Impact
Unified release process across 15+ microservices. 80% faster deployment validation. Improved compliance audit readiness.
Azure DevOpsAKSACRTerraformAzure CLI

Kubernetes Multi-Tier Cloud Infrastructure

case study

Designed and deployed a production-ready cloud-native stack on AWS EKS with secure VPC architecture, load balancing, persistent storage, and comprehensive monitoring—enabling zero-downtime deployments and high availability.

📊 Impact
99.99% uptime SLA achieved. Automated failover and self-healing. Reduced infrastructure costs by 35% through optimized resource allocation.
AWS EKSVPCALBEBSPrometheus

Capabilities

Strong across cloud, automation, delivery, and platform reliability.

Automation & Delivery

  • Jenkins
  • GitHub Actions
  • Azure DevOps
  • ArgoCD
  • Flux

Cloud & Platform

  • AWS
  • Azure
  • Terraform
  • Kubernetes
  • Proxmox VE
  • Virtualization
  • Ansible

Security & Quality

  • SonarQube
  • Trivy
  • OWASP DC
  • DevSecOps
  • Policy-as-Code

Engineering Practice

  • Docker
  • Helm
  • Python
  • Shell
  • Observability

Contact

Let's collaborate on building reliable, scalable infrastructure that drives business outcomes.

If you're looking for a DevOps engineer to lead platform modernization, improve cloud reliability, or architect scalable delivery systems, I'd welcome a conversation.