With 15 years of experience, I have a strong track record of designing and implementing cloud-native solutions with a focus on automation, security, and reliability. My technical expertise spans multiple platforms, and I have extensive experience with Kubernetes and other container orchestration tools. Additionally, I have a proven ability to lead and mentor mid-level and senior-level engineers, providing them with technical guidance and leadership to ensure successful project outcomes. I am passionate about promoting knowledge sharing and reusability, and I leverage this approach to develop high-quality, maintainable code.
View the Project on GitHub sepulworld/resume
Zane Williamson
Email: zane.w@hey.com
GitHub: https://github.com/sepulworld
Download my resume as a PDF
Senior Staff Site Reliability Engineer, Varo Bank
June 2022 to Present
- Collaborated with cross-functional platform teams to deliver high-quality products, and provide technical leadership.
- Open Telemetry auto-instrumentation for all Java and NodeJS applications with Grafana Tempo
- Work across all engineer teams remove kube2iam and use proper AWS client auth
- Implement SLO/SLIs for multiple engineer platforms
- Rolled out Grafana Loki and Tempo combined with Open Telemetry Operator for full stack observability
- Enable cluster autoscaling in production to increase reliability and reduce costs
- Build Terraform modules used across multiple platform and engineering teams
- Automate EKS module test automation to validate cluster changes
- Migrate Helm deployments to ArgoCD
Senior Staff Engineer, Flexport
March 2021 to June 2022
- Designed and built Flexport infrastructure on Kubernetes
- Provided technical leadership, guidance, and mentorship to mid-level and senior-level engineers as a principal software engineer.
- Terraform AWS + Helm Provider driven EKS setups
- Secure access to K8s platform via Teleport
- Github Actions driven CI/CD for infrastructure and application automation
- Python CLI for pipeline entry point
- Terraform modules to allow rapid tooling iteration
- Focused on building team skills and collaboration via pair programming
Principal Engineer, Zillow
October 2015 to June 2021
- Built a Python Serverless API and collection subsystem for AWS network stack information
- Provided technical leadership, guidance, and mentorship to mid-level and senior-level engineers as a principal software engineer.
- A lead contributor to the k8s bloomberg/solr-operator application
- Designed and implemented core components of Gitlab CI/CD pipelines at Zillow
- Designed a Kubernetes config secret store and open sourced (hyperkube)
- Kubernetes production infrastructure and CI/CD setup for www.trulia.com
- Kubernetes Nginx-ingress and Istio routing and traceability layer
- AWS Lambda driven Elastic MapReduce (EMR) workflows on AWS
- Terraform driven configuration and setup for Kafka, Zookeeper
- Implemented reusable Terraform modules for AWS infrastructure configuration automation
- Envoy sidecar proxy for Varnish caching
- Istio sidecar and platform for request tracing, traffic shaping and mutual TLS security
DevOps Engineer, GeoRiot (contractor, remote)
April 2013 to April 2018
- Python driven Let’s Encrypt cert generation and multi-region HAproxy deployment system
- Nomad + Docker microservice production deployment across multiple cloud providers.
- Contributed to open source Puppet MongoDB module
- Puppetize and network multiple RabbitMQ clusters, RabbitMQ Shovel
- FPM cookery build scripts, and Makefiles to build Deb packages
Sr. DevOps Engineer, Machine Zone
March 2014 to October 2015
- Data driven Puppet w/ full module testing (Rspec-Puppet, Serverspec, Vagrant)
- SaltStack for software deployment automation and remote command/module execution
- Wrote Ruby Sinatra API to handle asset warming using AWS Lambda as function platform
- Jenkins build jobs to automate software packaging, Puppet environment updates
- Implemented GitLab solution, with custom Git hooks
- Automation around F5 load balancer API
- Multiple datacenters, 4000+ systems
- Monitoring automation framework using Puppet and Sensu
July 2012 - March 2014
- Running a 100+ terabyte Hadoop/Hbase cluster
- Maintain an Nginx web-frontend in conjunction with A10 Load Balancers
- Master and Masterless Puppet automation
- Amazon Glacier backups
- Packer automated AMI builds and EC2 instance deployments
Operations Team, GoGrid
Jan 2010 - July 2012
- Build server deployment systems multiple datacenters
- Puppet, Cobbler and Python deployment scripts and Django Apps
- Automate deployment of Cisco ASA firewalls and other network devices
- Systems administration for key accounts
Open Source contributions
Speaking Events and Publications
- Terraform Modules and Continuous Deployment: Link
- Optimizing our Workflow with AWS: Link
- Trulia Open Sources Serverless Application: Link