Alexander Cranga

Alexander Cranga

DevOps/SRE Engineer

Chisinau, Moldova

alexander.kranga@gmail.com

github.com/alexanderkranga

About me

DevOps/SRE Engineer focused on delivering measurable business value through automation, cost optimization, and reliable systems. I specialize in building scalable CI/CD infrastructure, implementing AI-driven operational workflows, and maintaining production monitoring systems that minimize downtime and reduce costs. I create engineering solutions that enable teams to ship faster while keeping infrastructure stable and efficient

Skills and Tools

DevOps/SRE & Infrastructure

AWS Kubernetes Docker Terraform GitHub Actions Jenkins Grafana Prometheus PagerDuty Helm Linux NixOS

CI/CD & Build Tools

Jenkins Pipeline GitLab CI Bitbucket Pipelines Bazel pytest

Programming Languages

JavaScript TypeScript Bash Java Python

Testing & Quality

Selenium Cucumber BrowserStack TestNG JUnit JBehave Serenity Sauce Labs

Work Experience

DevOps Engineer | Extole

Nov 2019 - Jan 2026

  • AI tools - reduced MTTR by 30-40% by building an AI-powered incident response system that automatically analyzes production issues and surfaces root cause analysis for on-call engineers
  • Agentic workflows - reduced UI change turnaround from days to hours by building an agentic AI system that enables non-technical teams to independently make, deploy, and ship production changes
  • Workflow automation - cut environment setup time from 1h to 20 min for 10-15 developers (~10-15 spins/day) by building an on-demand workflow system for isolated development environment provisioning
  • Kubernetes - supported 50-70 daily builds and deploys across prod/non-prod by building self-hosted GitHub runner infrastructure on AWS EKS with Terraform, owning 40+ CI/CD workflows
  • Docker + Linux - improved build time, stability, and reproducibility by engineering custom Linux Docker images for GitHub Runners and NixOS-based workloads
  • Terraform + AWS - standardized AWS infrastructure provisioning by building and maintaining advanced Terraform modules, reducing manual configuration and drift across environments
  • Grafana/Prometheus - enabled data-driven engineering decisions by building a CI/CD observability platform in Grafana/Prometheus tracking deployment frequency, build times, failure rates, and infrastructure costs
  • Python automation - eliminated manual SSL management for 250+ clients by automating Let's Encrypt certificate renewal with Python, preventing expiration incidents entirely
  • On-call - maintained production reliability by owning on-call incident response across production and development environments
  • CI/CD migration - accelerated CI/CD iteration speed by leading Jenkins-to-GitHub Actions migration, co-locating pipelines with code and enabling engineers to own and improve workflows directly
  • Cost Optimization - cut dev environment costs from $700 to $200/engineer/month by migrating on-demand environments from AWS primitives to a single machine, contributing to a 40-50% platform-wide infrastructure cost reduction
  • QA Automation - caught critical bugs in production-critical client flows early by redesigning QA automation for Java/TypeScript test suites, improving coverage, reducing CI time, and introducing better reporting and failure notifications

Full Stack Developer | Allied Testing (part time)

Jun 2018 - Nov 2019

  • Developed production web application using React, Redux, ES6, Webpack, and Atlassian Atlaskit components, deployed to 60+ Atlassian customer environments
  • Built CI/CD pipelines using Jenkins to automate testing, building, and deployment workflows for the project

Internship program co-owner and mentor | Allied Testing (part time)

Jan 2017 - Nov 2019

  • Developed internship program application using TypeScript and Angular 2
  • Contributed to REST service development using Java and Spring framework
  • Interviewed 100+ candidates, with 60+ successfully hired by the company
  • Mentored interns in QA automation, REST APIs, testing frameworks, and Java programming

QA Framework and Automation engineer | Allied Testing

Dec 2015 - Nov 2019

  • Built automation tools and test suites using Java, TestNG, JUnit, JBehave, Serenity, Selenium, and Cucumber following TDD/BDD methodologies

Education

Technical University of Moldova

2014 - 2019

Bachelor's degree


Theoretic Lyceum 'Vasilie Lupu'

2002 - 2014