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I’m Mario Romero Sr., a results-driven DevOps and Site Reliability Engineer who loves turning complex challenges into scalable, reliable cloud platforms. I focus on leveraging emerging technologies to build cloud-agnostic solutions that are stable, maintainable, and cost-effective. I enjoy collaborating across teams to design automation that speeds delivery while reducing risk. In my roles, I lead automation initiatives from concept to production, mentor junior engineers, and thrive in fast-paced environments with minimal supervision. I’m comfortable navigating multi-disciplinary programs, balancing business goals with solid technical foundations, and continuously learning to keep platforms robust and future-ready.…I’m Mario Romero Sr., a results-driven DevOps and Site Reliability Engineer who loves turning complex challenges into scalable, reliable cloud platforms. I focus on leveraging emerging technologies to build cloud-agnostic solutions that are stable, maintainable, and cost-effective. I enjoy collaborating across teams to design automation that speeds delivery while reducing risk. In my roles, I lead automation initiatives from concept to production, mentor junior engineers, and thrive in fast-paced environments with minimal supervision. I’m comfortable navigating multi-disciplinary programs, balancing business goals with solid technical foundations, and continuously learning to keep platforms robust and future-ready.

Mario Romero Sr.

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I’m Mario Romero Sr., a results-driven DevOps and Site Reliability Engineer who loves turning complex challenges into scalable, reliable cloud platforms. I focus on leveraging emerging technologies to build cloud-agnostic solutions that are stable, maintainable, and cost-effective. I enjoy collaborating across teams to design automation that speeds delivery while reducing risk. In my roles, I lead automation initiatives from concept to production, mentor junior engineers, and thrive in fast-paced environments with minimal supervision. I’m comfortable navigating multi-disciplinary programs, balancing business goals with solid technical foundations, and continuously learning to keep platforms robust and future-ready.…I’m Mario Romero Sr., a results-driven DevOps and Site Reliability Engineer who loves turning complex challenges into scalable, reliable cloud platforms. I focus on leveraging emerging technologies to build cloud-agnostic solutions that are stable, maintainable, and cost-effective. I enjoy collaborating across teams to design automation that speeds delivery while reducing risk. In my roles, I lead automation initiatives from concept to production, mentor junior engineers, and thrive in fast-paced environments with minimal supervision. I’m comfortable navigating multi-disciplinary programs, balancing business goals with solid technical foundations, and continuously learning to keep platforms robust and future-ready.

Available to hire

I’m Mario Romero Sr., a results-driven DevOps and Site Reliability Engineer who loves turning complex challenges into scalable, reliable cloud platforms. I focus on leveraging emerging technologies to build cloud-agnostic solutions that are stable, maintainable, and cost-effective. I enjoy collaborating across teams to design automation that speeds delivery while reducing risk.

In my roles, I lead automation initiatives from concept to production, mentor junior engineers, and thrive in fast-paced environments with minimal supervision. I’m comfortable navigating multi-disciplinary programs, balancing business goals with solid technical foundations, and continuously learning to keep platforms robust and future-ready.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

English

Fluent

Work Experience

Site Reliability Developer/Engineer (SRE) at Rootheory, LLC

October 1, 2022 - November 1, 2025

Subcontractor Site Reliability Engineer (SRE) responsible for franchise build-out. Worked with contractors and design firms to design, provision, and validate infrastructure, including central data/network topology, security controls, and vendor software integrations. Led pre-build guidelines, center openings, and resource planning for scalable, multi-tenant deployments. Built repeatable, secure infrastructure with an emphasis on reliability and maintainability across evolving franchise environments.

Senior DevOps / Site Reliability Engineer at Mad Wire Media, LLC

November 1, 2021 - September 30, 2022

Senior DevOps / Site Reliability Engineer on the Platform One DevOps Engineering Team. Built and managed cloud-based, multi-tenant infrastructure and services, automated provisioning, and continuous delivery pipelines. Led environment provisioning, platform services enablement, and ongoing performance and reliability improvements for the company’s SaaS offerings.

Sr DevOps Engineer at Lockheed Martin

July 1, 2021 - October 31, 2021

Platform One DevOps Engineering Team member on Space initiatives, supporting cloud-native deployments, IaC, and service mesh. Defined and implemented CI/CD pipelines across multiple providers, and contributed to DoD-grade security and networking requirements for scalable, reliable systems (Remote contractor via TRACE3).

Platform Transformation DevOps Engineer at Best Buy Corporate, Inc.

August 1, 2020 - October 1, 2020

Contributed to Best Buy's Platform Transformation initiative. Created and reviewed pre-build workflows, designed cloud-native patterns, and facilitated multi-vendor integration. Built PaaS concepts and IaC-driven deployment processes to reduce lead times and improve reliability.

Senior Linux Systems Administrator at Black Knight Financial Services

August 1, 2017 - September 1, 2018

Led Linux-based infrastructure for mortgage servicing platforms (MSP SaaS). Managed cloud and on-prem environments, deployed and promoted code, provided incident support, and contributed to platform stability and performance across multiple data centers and environments.

SSL Certificate Management Architect at Yale University

January 1, 2021 - April 1, 2021

Remote SSL certificate management re-architecture project. Designed automation for certificate lifecycle, integrated with GlobalSign APIs, created API wrappers, and implemented Jenkins-based workflows for certificate provisioning and renewal.

Senior Linux Systems Administrator at Carnival Corporation & PLC

March 1, 2014 - March 1, 2017

Enterprise Linux Systems Administration focused on AWS/Azure/OpenStack-based infrastructure, containerization (Docker/Kubernetes), automation, monitoring, and cloud-native design in the global cruise operations environment.

Senior IT Systems Administrator at Citizens Property Insurance Corp

October 1, 2007 - March 1, 2014

Infrastructure-focused IT Systems Administrator supporting AWS, on-premises environments, server provisioning, backups, monitoring, and performance improvements for insurance processing and customer services.

Site Reliability Engineer / DevOps Engineer at Rootheory, LLC

October 1, 2022 - November 1, 2025

Led site reliability and automation work for franchise commercial build-outs, including pre/post-build guidelines, network and data-center readiness, central IT hub deployment, and coordination with contractors. Authored pre-build and fielding playbooks, reviewed franchise disclosure docs, and defined scalable, secure infrastructure for multi-site deployments.

DevOps Engineer / Platform One – Platform Engineering at Lockheed Martin / Space IT

July 1, 2021 - October 1, 2021

Contributed to DoD Platform One initiatives for a reusable, cloud-native PaaS. Implemented IaC and automation to accelerate Platform One adoption, including cross-provider deployments and service mesh considerations. Worked on OpenShift/Kubernetes–based arrangements and multi-provider tooling to streamline DoD workloads.

Sr. DevOps / SRE – Linux Engineering Team at Yale University (via Apex Systems)

January 1, 2021 - April 1, 2021

Re-architected SSL certificate management, built automation and CI pipelines, and coordinated security-conscious modernization of SSL workflows. Assisted in deploying and operating Linux-based services with focus on reliability and security.

Infrastructure Engineer – Linux Systems Administrator at Black Knight Financial Services

August 1, 2017 - September 1, 2018

Managed build and release processes, containerization strategies (Docker/Kubernetes), automation of provisioning and deployment, and ongoing Linux infrastructure reliability for mortgage service platforms.

Platform Transformation – Platform One / Best Buy at Best Buy

August 1, 2020 - October 1, 2020

Participated in platform transformation initiatives to enable self-service UI and supplier layers. Implemented cloud-native patterns, IaC, and scalable deployment practices to support enterprise e-commerce and supplier ecosystems.