David Crnko

Hi, I'm David

Cloud Platform Engineer

welcome to my digital resume

This is my personal portfolio website, showcasing my experience and technical skills.

If you're interested in my other projects, feel free to check out my GitHub page.

My background is primarily in Linux system administration, with a strong focus on SUSE Linux, the second-largest Linux distribution. Throughout my career, I have specialised in providing technical support and troubleshooting Linux-related issues while collaborating with IT departments of some of the world's largest companies. Currently, I am expanding my expertise in public cloud technologies and progressively advancing my skills in Terraform, Python scripting, and Kubernetes. Additionally, I have a keen interest in web development and automation, which has led me to develop what I believe to be an advanced ability in AI prompt optimisation.

Download CV ↓

Work Experience

Present

Cloud Platform Engineer

Alef

IT Solutions Distributor — designing and managing modern cloud infrastructure on AWS, ECS and Terraform for enterprise clients.

2021 – Jan 2025

Technical Support Engineer III

SUSE Linux

Open-source software company developing Linux products for business customers. Senior escalation engineer for enterprise Linux environments worldwide.

2017 – 2018

Intern Customer Support

SUSE Linux

Open-source software company developing Linux products for business customers.

Education & Certifications

2026

GitLab Certified CI/CD Associate verified verify

GitLab

Validates the ability to configure a GitLab CI/CD pipeline with build, test, and deploy stages, use job artifacts and dependency scanning, and build and deploy images to the GitLab registry. .

2026

AWS Solutions Architect – Associate verified verify

Amazon Web Services

Validates expertise in designing distributed systems on AWS — covering high availability, cost optimisation, performance, and security across core AWS services.

2024

AWS Cloud Practitioner verified verify

Amazon Web Services

Validates foundational, high-level understanding of AWS Cloud, services, and terminology.

2021

Certified Kubernetes Administrator verified verify

The Linux Foundation

Covers skills for securing container-based applications and Kubernetes platforms during build, deployment and runtime.

2018

MSc. Computing

The University of Sunderland

Computer Science programme covering Web Development, Software Development, Databases and Computer Networking.

Linux

SUSE, RHEL & Ubuntu administration; kernel tuning, system troubleshooting, package management and service hardening for enterprise workloads.

AWS

ECS, EC2, S3, RDS, Lambda, CloudWatch, IAM & VPC design; cloud-native architecture and cost optimisation for cloud platform engineering.

Kubernetes

Cluster administration, RBAC, network policies, Helm deployments, pod security, persistent volumes and workload autoscaling in production.

Terraform

Infrastructure as Code using modular HCL for AWS provisioning, remote state in S3, CI/CD-driven plan/apply workflows and drift detection.

Ansible

Configuration management and server provisioning via playbooks — OS hardening, application deployment and cloud inventory management at scale.

Virtualisation

VMware vSphere, KVM and container virtualisation; hypervisor management, VM migration, resource allocation and hybrid cloud integration.

Bash

Shell scripting for automation, log parsing, cron jobs, system monitoring and deployment pipelines across Linux and cloud environments.

Python

Scripting for cloud automation via boto3, API integrations, data processing and tooling to support infrastructure and DevOps workflows.

Project

AWS Cloud Resume Challenge

This project is based on the AWS Cloud Resume Challenge. The final product is the website you are currently visiting.

Project

The Kubernetes Resume Challenge

Deploying a production-grade application on Kubernetes following the Kubernetes Resume Challenge framework.

Project

Terraform Resume Challenge

Building and automating cloud infrastructure entirely through code using Terraform and AWS provider modules.

Coming Soon

Preview 4

Another project or article is on its way. Stay tuned for updates.

Coming Soon

Preview 5

Another project or article is on its way. Stay tuned for updates.

Coming Soon

Preview 6

Another project or article is on its way. Stay tuned for updates.

Have a question, want to collaborate, or just want to say hello? Fill out the form and I'll get back to you as soon as possible.