Senior AWS Cloud Infrastructure Engineer

Sebastian Marines

Senior Cloud Engineer AWS Infrastructure

**@****************.*** · Remote · linkedin.com/in/sebastianmarines · github.com/sebastianmarines · sebastianmarines.com

Summary

Cloud infrastructure specialist with 5 years of experience designing, deploying, and optimizing AWS environments at scale. AWS Solutions Architect Professional certified with hands-on expertise in infrastructure as code, containerization, and serverless architectures. Proven track record reducing cloud costs while maintaining 99.9% uptime and delivering zero-downtime deployments. Certifications

AWS Certified Solutions Architect – Professional · Amazon Web Services · 2025-01 AWS Certified CloudOps Engineer – Associate · Amazon Web Services · 2025-10 AWS Certified Security – Specialty · Amazon Web Services · 2025-02 AWS Certified SysOps Administrator – Associate · Amazon Web Services · 2024-03 AWS Certified Developer – Associate · Amazon Web Services · 2024-01 HashiCorp Certified: Terraform Associate · HashiCorp · 2022-06 AWS Certified Solutions Architect – Associate · Amazon Web Services · 2022-02 Skills

aws, terraform, cloudformation, cdk, docker, python, kubernetes, serverless, github actions, jenkins, cloudwatch, prometheus, grafana, go, rust

Experience

Independent Cloud & AI Infrastructure Consultant · Freelance (Jan 2026 to Present) Remote

Designed and deployed AI infrastructure for video processing pipelines on AWS and Azure, leveraging GPU compute and serverless orchestration for scalable inference. Reduced client cloud spending through strategic rightsizing, reserved capacity planning, and architecture refactoring across multi-cloud environments.

Advise on cloud architecture, infrastructure as code, and DevOps best practices, building automation and CI/CD pipelines to improve deployment reliability. Senior Cloud Engineer · Amazon (Feb 2025 to Dec 2025) Culver City, California (Remote)

Migrated AWS accounts and workloads from MGM's standalone environment into Amazon's organizational structure, managing IAM policies and security controls. Built infrastructure automation for Linux server patching and updates across the fleet, improving compliance posture and reducing manual overhead.

Deployed CDK pipelines to automate infrastructure provisioning and used Node.js to build infrastructure-as- code solutions for seamless cloud deployments.

Collaborated with MGM engineering teams to assess infrastructure and plan multi-phase integration, translating technical requirements into production systems. Cloud Architecture Consultant · Rackspace Technology (Oct 2024 to Feb 2025) San Antonio, Texas (Remote)

Delivered AWS Well-Architected Framework reviews and architectural leadership across multiple client workstreams, achieving 100% on-time project completion. Remediated 95% of identified cost and security findings, translating business requirements into solutions with executive stakeholders.

Mentored implementation teams on infrastructure patterns, Terraform and CloudFormation standards, and operational best practices through handover.

Software Engineer - Data Infrastructure · Meta (Jun 2024 to Sep 2024) Seattle, Washington

Engineered a capacity analysis tool that identified $13M in underutilized server infrastructure across thousands of servers.

Cloud Engineer · Atrato (Oct 2023 to Jun 2024)

Guadalajara, Jalisco (Remote)

Maintained 99.9% uptime while cutting AWS costs through resource optimization and strategic architecture decisions for a fintech startup.

Led Infrastructure as Code adoption with Terraform and CloudFormation, establishing repeatable patterns across engineering teams.

DevOps Engineer · ClickIT: DevOps & Software Development (May 2021 to Oct 2023) Beverly Hills, California (Remote)

Designed serverless architectures serving 50,000+ daily users with sub-second response times, optimizing for cost and scale.

Reduced deployment cycles from days to hours by implementing zero-downtime releases and CI/CD automation with Docker and Kubernetes.

Migrated data layer to DynamoDB, cutting database costs while improving query performance and reducing operational complexity.

Education

Master of Science Computer Science, Georgia Institute of Technology Bachelor's Software Engineering, Tecnológico de Monterrey Languages

English (Advanced)

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