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Marcos SampaioMS
Open to opportunities

Marcos Sampaio

@marcossampaio

Senior Software Engineer focused on modern cloud platforms, developer productivity, and reliable AI-enabled delivery.

Australia
Message

What I'm looking for

I’m looking to lead modernization and platform reliability work—building secure cloud infrastructure, speeding up developer delivery with CI/CD + GitOps, and applying AI tooling responsibly, while coaching teams to ship confidently.

I’m a Senior Software Engineer with 18+ years of experience delivering high-impact systems by balancing business strategy with technical rigor. I’m hands-on, results-driven, and I course-correct underperforming delivery while keeping quality non-negotiable.

I’ve built and modernized engineering platforms end-to-end—leading tech modernization, CI/CD, and cloud infrastructure automation, while integrating advanced AI tooling and agentic workflows to stabilize on-time deployments. I champion “Building the Right Thing” and “Building the Thing Right” with a grounded, data-driven approach to listening, mentorship, and continuous upskilling.

I lead teams and platforms across global environments, including cross-cloud migrations (Azure to AWS), GitOps-driven delivery workflows, and high-scale performance engineering. From AWS EKS and container orchestration to observability with Prometheus/Grafana and scalable data/streaming components, I focus on reliability, speed, and measurable outcomes (including 100%+ YoY revenue and major latency reductions).

I also invest in developer ecosystems—improving internal productivity for Bitbucket Cloud runners and GitOps pipelines, and contributing to open-source work (e.g., DNX’s footprint). With AWS certifications and a deep engineering culture mindset, I’m committed to teaching teams how to safely and effectively ship code alongside AI agents.

Experience

Work history, roles, and key accomplishments

Atlassian logoAT
Current

Senior Software Engineer

Oct 2020 - Present (5 years 8 months)

Led Atlassian Kubernetes & GitOps transformation, building global Bitbucket CI/CD deployment workflows with GitHub Actions and ArgoCD and cutting median pipeline build times by 38%. Designed secure Amazon EKS clusters with External Secrets/DNS and ALB Controller, implementing RBAC and modernization tooling to improve developer productivity.

DS

Cloud Engineer / Tech Lead

DNX Solutions

Apr 2021 - Dec 2021 (8 months)

Architected AWS-based Fintech greenfield infrastructure and led cross-functional delivery of an event-driven serverless platform ahead of the projected deadline. Resolved critical reporting performance bottlenecks by refactoring telemetry and database access, reducing 5-minute query times to under 1 second for 99.9% of reports.

Education

Degrees, certifications, and relevant coursework

UB

Universidade Ruy Barbosa

Bachelor of Computer Science, Computer Science

2004 - 2009

Earned a Bachelor of Computer Science at Universidade Ruy Barbosa from 2004 to 2009.

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