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cr-montoya/README.md

Cristian Montoya

DevOps Engineer with experience designing secure, resilient, and automated cloud environments from the ground up. I work across cloud infrastructure, CI/CD, observability, security, and platform automation, with a strong focus on Infrastructure as Code, operational excellence, and reliable delivery workflows.

I am AWS Certified as DevOps Engineer - Professional and Solutions Architect - Associate, with additional focus on cloud architecture and security practices. My day-to-day work includes AWS, Terraform, GitLab CI, GitHub Actions, Docker, Prometheus, Grafana, Linux, Python, and modern CI/CD platforms.

I enjoy building systems that are not only deployed correctly, but also observable, maintainable, secure, and easy for engineering teams to operate. I am especially interested in Harness Engineering, Spec-Driven Development (SDD), AI-assisted engineering workflows, platform automation, disaster recovery, compliance-driven cloud environments, and mentoring teams around DevOps and cloud-native practices.

Engineering Areas

I design cloud infrastructure using Infrastructure as Code with tools such as Terraform, AWS CDK, AWS SAM, and CloudFormation. I care about making environments repeatable, versioned, auditable, and simple enough for teams to evolve safely.

I build CI/CD workflows with GitLab CI, GitHub Actions, and AWS-native services, connecting source control, automated validation, deployments, environment promotion, and operational feedback loops.

I work on observability and operations using CloudWatch, Prometheus, Grafana, logs, metrics, alarms, dashboards, and runbooks, with the goal of making systems easier to understand before and after production incidents.

I also focus on cloud security practices such as IAM least privilege, access controls, audit trails, account guardrails, key management, compliance-oriented configurations, and automated remediation patterns.

Featured Projects

Hands-on AWS DevOps project with SAM and CDK applications focused on serverless APIs, CI/CD pipelines, observability, deployment safety, infrastructure validation, and production-style documentation. It includes architecture diagrams, runbooks, ADRs, automated tests, validation commands, and release documentation.

AWS security automation toolkit for account guardrails and event-driven remediation. It explores root user login notifications, stale IAM access key quarantine, compromised access key response, region restriction policy patterns, and CDK-based infrastructure with automated tests.

Current Focus

I am currently deepening my work around Harness Engineering, Spec-Driven Development (SDD), AI tools for software delivery, disaster recovery practices, compliance-aware cloud operations, and security automation for production environments.

Connect

Popular repositories Loading

  1. aws-devops-pro-practice aws-devops-pro-practice Public

    AWS DevOps Professional practice repo with SAM and CDK projects for CI/CD, observability, secure deployments, and event-driven/serverless patterns.

    Python

  2. wc2026-prediction-simulator wc2026-prediction-simulator Public

    AI-assisted World Cup 2026 analytics app with Poisson modeling, Monte Carlo simulation, ISR data loading, and SDD documentation.

    TypeScript

  3. aws-account-security-toolkit aws-account-security-toolkit Public

    Deployable AWS security and cost guardrails for personal and professional accounts: threat alerts, credential remediation, budget alerts, and stale-resource cleanup, all as code with AWS CDK.

    Python

  4. cr-montoya cr-montoya Public

    GitHub profile README for Cristian Montoya, DevOps and Cloud Engineer focused on AWS, CI/CD, IaC, observability, and cloud security.

  5. portfolio portfolio Public

    Personal portfolio — DevOps & Cloud Engineer. Built with React + Vite + Tailwind, deployed on Cloudflare Pages.

    TypeScript

  6. app-nutri app-nutri Public

    Nutrition consultation SaaS: patients, appointments, anthropometric body-composition calc engine, and evolution charts. Multi-tenant, SDD-driven.

    TypeScript