Bronson Mirafuentes
Staff Engineer at DoorDash
Seattle, Washington, United States
Summary
🤩
Rockstar🎓
Top SchoolBronson Mirafuentes is a Staff Engineer based in Seattle with eight years of experience building and operating cloud-native infrastructure, particularly around Kubernetes and AWS. He has driven Kubernetes cluster management at DoorDash and contributed to Amazon EKS at AWS, bringing production-grade reliability to large-scale services. His open-source work on the high-profile kops project improved AWS load balancer draining and instance termination behavior, reducing dropped connections during rolling updates. Comfortable in Go and cloud APIs, he has a track record of adding practical features like capacity rebalancing and drain timeout flags that address real operational pain points. Trained in electrical engineering with computer science and math minors from Seattle University, he blends systems-level rigor with hands-on DevOps execution. Colleagues rely on him to translate complex distributed-systems challenges into resilient, automatable infrastructure.
8 years of coding experience
7 years of employment as a software developer
Bachelor’s Degree Electrical Engineering - Computer Specialization, Bachelor’s Degree Electrical Engineering - Computer Specialization at Seattle University
Github Skills (13)
autoscaling10
kubernetes10
cloud-infrastructure10
go10
cloud-services10
aws10
devops10
kubernetes-pods10
terraform9
terraformer9
docker8
dockers8
cicd7
Programming languages (4)
Github contributions (5)
kubernetes/kops
Dec 2021 - Nov 2022
Kubernetes Operations (kOps) - Production Grade k8s Installation, Upgrades and Management
Role in this project:
DevOps Engineer & Cloud Engineer
DevOps Engineer & Cloud EngineerContributions:8 reviews, 43 commits, 49 PRs in 11 months
Contributions summary:Bronson primarily contributed to improving the AWS infrastructure management within the kops project, specifically focusing on connection draining for Classic Load Balancers (CLB) and Network Load Balancers (NLB). Their work involved modifying AWS cloud configurations to enhance instance termination processes, ensuring instances deregistered from load balancers and target groups before termination to prevent dropped connections. The user also added support for capacity rebalancing in ASGs and introduced a flag for drain timeouts during rolling cluster updates. The user's contributions also included general improvements, like adding annotations and upgrading runc.
containersgcphelmlinodeinstallation
heybronson/kops
Dec 2021 - Jun 2024
Kubernetes Operations (kops) - Production Grade K8s Installation, Upgrades, and Management
Contributions:79 pushes, 63 branches in 2 years 6 months
kubernetes-deploymentinstallationgradeproduction-gradek8s
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