Site Reliability Engineer @ Greenhouse Software DevOps Engineer, Cloud Operations @ DataRobot - Ran weekly blue/green deploys to AWS cloud stack using Jenkins: completely re-deploying new cluster with new code, switching connections to it, and tearing down the old cluster- Maintained multi-node MongoDB cluster with read-replicas and hidden nodes- Led project to implement a team-internal knowledge base...
Site Reliability Engineer @ Greenhouse Software DevOps Engineer, Cloud Operations @ DataRobot - Ran weekly blue/green deploys to AWS cloud stack using Jenkins: completely re-deploying new cluster with new code, switching connections to it, and tearing down the old cluster- Maintained multi-node MongoDB cluster with read-replicas and hidden nodes- Led project to implement a team-internal knowledge base using mkdocs: documentation site automatically generated from Markdown source documents-- Completely refactored mkdocs-redirects plugin to fix behavior and conformity issues- Refactored Python-based cluster deployment tools to allow for provisioning dynamically-allocated prediction servers (previously static) From May 2019 to October 2019 (6 months) Greater Denver AreaDevOps Engineer @ Percolate Inc. - Built and automated infrastructure for 1000+ server AWS stack (Ubuntu) using configuration management (CFEngine and Ansible), Terraform, and custom tooling (Python and shell)-- Overhauled CFEngine provisioning policies to consolidate redundant code and standardize policy usage for maintainability and performance- Developed and maintained automation tools using Python, shell, and AWS Lambda & SQS-- Completely refactored service deployment tooling in Python with improvements for stability and usability and to support multiple deployment methods (git checkout, debian packages, docker containers)-- Designed and wrote custom Python library to handle standard and repetitive tasks throughout automation toolbase allowing consolidation and standardization of duplicate code (especially boto/AWS)- Deployed and administered the following technologies: Elasticsearch, Kafka, Zookeeper, Consul and Vault, RabbitMQ, Graphite, MySQL (on RDS) From August 2015 to May 2019 (3 years 10 months) New York, New YorkDevOps Engineer @ LiveIntent, Inc. - Created an automated system for disposable individual testing environments using OpsWorks, Chef, and Node.js- Designed, wrote and implemented Python script for taking automatic EBS snapshots of EC2 instances- Designed, wrote and implemented Python script to manage a pair of redundant NAT gateways (eliminating a single-point of failure)- Designing and implementing deployment procedures for both Node.js and PHP applications in AWS- Create and manage existing AWS infrastructure, including: EC2, VPCs, S3, Route 53, OpsWorks, ELB, RDS, Chef From December 2014 to August 2015 (9 months) NYCNOC Engineer @ Logicworks - Configured, managed, monitored, and performed troubleshooting of client and internal infrastucture using:--Linux and Windows server systems (web nodes, databases, etc) (RHEL/CentOS/Ubuntu)--Stingray load balancers--Networking with Cisco ASA firewalls, Juniper switches, iptables-based Linux firewalls, Fortigate firewalls--Virtualization using VMware ESX clusters and AWS cloud infrastucture--EM7 monitoring, along with Alertlogic threat detection- Handled incoming client calls and requests to provide 1st and 2nd level support - Architected new client environment on Amazon Web Services from the ground up- Built new servers within private clouds on VMWare systems- Managed large, multi-tier backup infrastructure using R1Soft and Avamar- Plenty of automation and scripting using bash From November 2013 to December 2014 (1 year 2 months) New York, NYSystems Administrator @ CTS Hosting - End-user support via telephone, email, and in-person- Deployment, maintenance and automation of hosted servers and services for client companies- Management of hosted Windows Server 2008/2012 network and fail-over cluster including:--Hyper-V Virtualization--Microsoft Exchange--Active Directory--Blackberry Enterprise Server--Ahsay backup--Kerio Email--AT&T Synapse IP Phone Systems-Set up, from scratch, Wiki site (on a virtual Ubuntu linux server) for internal documentation From July 2013 to November 2013 (5 months) IT Engineer @ Gloucester County Special Services School District - Deployment, repair, and troubleshooting of a variety of Apple computers (OS X, OS 9 and OS 8, OS X Server)- Deployment and configuration of A/V equipment including projectors and sound systems- Designed and implemented infrastructure for a newly-built school, including networking and workstations From June 2007 to June 2008 (1 year 1 month) Sewell, NJ
Site Reliability Engineer
DevOps Engineer, Cloud Operations
May 2019 to October 2019
Greater Denver Area
August 2015 to May 2019
New York, New York
December 2014 to August 2015
November 2013 to December 2014
New York, NY
July 2013 to November 2013
Gloucester County Special Services School District
June 2007 to June 2008
What company does Zach Himsel work for?
Zach Himsel works for Greenhouse Software
What is Zach Himsel's role at Greenhouse Software?
Zach Himsel is Site Reliability Engineer
What industry does Zach Himsel work in?
Zach Himsel works in the Information Technology and Services industry.
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