Oscar Macias

Senior Cloud Operations Engineer

Oscar Macias

Technologist focused on enabling businesses through secure, scalable, and efficient processes.

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Experience

Fortune 500 Financial Services Company · 2017 – Present

  1. 2025 – Present

    Senior Cloud Operations Engineer

    Design and operate cloud infrastructure as code, own CI/CD deploy pipelines, and drive secure-by-default patterns across multi-account AWS environments.

  2. 2023 – 2025

    Senior Information Security Engineer

    Led security engineering initiatives across cloud and enterprise systems, mentoring engineers and hardening controls at scale.

  3. 2021 – 2023

    Information Security Engineer

    Built and automated security controls, integrating identity, access, and compliance tooling into engineering workflows.

  4. 2020 – 2021

    Senior Information Security Analyst

    Owned security monitoring and risk analysis programs, translating findings into actionable remediation for engineering and business teams.

  5. 2019 – 2020

    Information Security Analyst

    Monitored and assessed enterprise security posture, supporting incident response and governance, risk, and compliance efforts.

  6. 2018 – 2019

    Accounting Information Systems Solutions Specialist

    Delivered ERP and reporting solutions, bridging accounting operations with systems engineering and process automation.

  7. 2017 – 2018

    Accounting Information Systems Specialist

    Functional support analyst/admin for PeopleSoft Financials, aiding accountants and end users with journal entries and delivering training post-deployment.

Skills & Certifications

Core Competencies

  • Cloud Infrastructure & Security (AWS)
  • Infrastructure as Code (Terraform / OpenTofu)
  • CI/CD & DevSecOps (GitHub Actions, OIDC)
  • Enterprise Resource Planning (ERP)
  • ServiceNow
  • Data Analytics
  • Governance, Risk & Compliance

Certifications

  • CISSP – Certified Information Systems Security Professional
  • CCSP – Certified Cloud Security Professional
  • HashiCorp Certified: Terraform Associate
  • ServiceNow Certified System Administrator
  • ServiceNow Certified Application Developer
  • ServiceNow CIS – GRC Implementer
  • GIAC Cloud Security Automation (GCSA)
  • Securities Industry Essentials (SIE)

Education

How This Site Is Built

This isn't just a resume about cloud engineering — it's running on the infrastructure it describes.

GitHub Actions

Push to main triggers a deploy, authenticated via OIDC – no long-lived AWS keys.

Amazon S3

Site files sync to a private bucket, unreachable except through CloudFront.

CloudFront

Global CDN with Origin Access Control, TLS via a DNS-validated ACM certificate.

Route 53

Owns DNS for the domain, aliasing straight to the CloudFront distribution.

The entire stack – IAM roles, S3, CloudFront, ACM, and Route 53 – is defined and applied with Terraform / OpenTofu, built to host multiple independent sites from one AWS account.