Senior DevOps Engineer at SigFig Wealth Management

Lead DevOps for CI/CD pipelines using Git, Jenkins, and GitHub Actions; designed and operated hybrid cloud and on-prem infrastructure; implemented automated provisioning with Terraform and Ansible, and built Kubernetes-based environments. Implemented security and compliance tooling (SOC 2, DDoS protection, SSO integration). Designed monitoring and logging solutions with Nagios, Grafana, CloudWatch, and Splunk; developed DR failover processes and multi-tenant on-prem environments for clients; managed on-site and cloud infrastructure and large Linux deployments.

Linux/Unix Systems Administrator (Consultant) at Multiple Clients

Provided Linux system administration for various clients (Red Hat/CentOS); clustered file systems using GlusterFS over 10Gb Ethernet; monitored and troubleshot Linux, software, and network issues; built a Ruby on Rails front-end with JavaScript-driven interactive MySQL back-end; virtualized servers using Linux KVM and Docker; automated tasks with Puppet, Shell, Perl, Python; designed on-prem infrastructure and governance for multi-vendor Linux/OpenBSD environments; supported IT service management for client environments.

Senior Linux/Unix Systems Administrator at CSC (Computer Sciences Corp.)

Administered hundreds of Linux servers and enterprise VM infrastructure; built and maintained Linux HPC clusters with GPUs and InfiniBand interconnects; automated processes with Puppet, Shell, Perl, Ruby, and SQL; designed on-prem infrastructure and network security; supported Cisco/CentOS firewall configurations; designed on-prem and multi-vendor HPC clusters; implemented on-premises solutions and tooling.