Head of Application Architecture at Citadel LLC
Chicago, Illinois
I'm a well rounded operations engineer with leadership ability, a keen eye for detail, and an ability to think about the "big picture". I can learn quick and apply quicker and I'm always running at 150% in everything I do. I have a passion for "getting it right" and making it "work". In my professional career I...
I'm a well rounded operations engineer with leadership ability, a keen eye for detail, and an ability to think about the "big picture". I can learn quick and apply quicker and I'm always running at 150% in everything I do. I have a passion for "getting it right" and making it "work". In my professional career I have managed projects big and small and am always thinking about what I can do to make it better. Specialties:Ruby, Rails, Tibco EMS, Distributed search systems, Major Releases (Alpha/Beta/GA), Catastrophe Management, Castrophe Planning, Server Security, System Mangement, Red Hat Linux Enterprise, Ubuntu Linux, Network layers, Project Management, Build and Release ManagementSite Reliability Engineer @ Making the world a better place 140 characters at a time. From February 2015 to Present (9 months) RemoteSenior Software Engineer @ Software engineering with a DevOps flare. From August 2014 to February 2015 (7 months) RemoteSenior Service Engineer @ Responsible for Yahoo! Mail Search and Meta Data operations. Team Lead for Mail Search Operations and Meta Data Storage Operations. * Own the Day-to-Day operations and support for Mail Search systems * Own all production and operations engineering for next gen Mail Meta Data system using HBase * Design and Build deployment automation for continuos deployment to production * Design and Build tools for support teams to use for troubleshooting and repair * Design and Build monitoring solutions to detect and prevent user facing outages * Create processes and solutions for making support of large scale infrastructure possible by a small team. Do operational architecture reviews of application design to ensure maintainability on go-live and beyond. From May 2012 to August 2014 (2 years 4 months) Service Engineering Manager @ Responsible for managing the Yahoo! Mail Search Operations team. We keep your mailbox search up and running... and fast. From December 2010 to May 2012 (1 year 6 months) Senior Service Engineer @ Team lead: * Yahoo Groups and Delicious.com search operations. * Yahoo Groups Java Operations * Tibco/JMS Operations Maintain and fight fires on the Yahoo Groups servers and Delicious.com servers Participate in Oncall rotation for Yahoo Groups and Delicious.com Do operational architecture reviews of application design to ensure maintainability on go-live and beyond. From October 2010 to December 2010 (3 months) Service Engineer @ Responsible for the day-to-day operations of Y! Groups and Delicious.com including: * Own the operations of the search system that powers all searches on the user facing site * Own and operate the advanced Tibco EMS system used for all site activity * Provisioning new machines for growth on the site. * Designing monitoring for the ever changing services that the product team builds * Design graphing tools for better visibility in to the day-to-day performance monitoring * Designing and implementing new design ideas to make the application run smoother and be more maintainable. * Designing and implementing Disaster Recovery plans as well as testing those plans. * On call for Disaster Recovery. From June 2008 to October 2010 (2 years 5 months) Senior Operations Engineer @ Maintained all servers including production, beta test, benchmark test, and core operations servers Implemented a continuous build loop for beta testing new code using Cruise Control Designed and implemented a "push" release system in ant to build, package, and push new code to production using a simple ant target. Maintained a Subversion source code repository and a git source code repository Maintained a high availability JBoss cluster and MySQL cluster in a production environment Built a web based git repository browser using ruby from the ground up Implemented Domainkeys and SPF for outgoing emails to insure delivery of bulk mails to user inboxes Maintained a postfix email server cluster that averaged millions of emails monthly Implemented server monitoring tools for tracking change over time using Hyperic HQ Designed and implemented a high availability INNODB based MySQL load balanced database cluster with failover using mysql-proxy From May 2007 to May 2008 (1 year 1 month) Founder/A&R @ Produced and sold Musicians to Record Labels. From January 2002 to August 2007 (5 years 8 months) Founder/Senior Systems Architect @ Designed, Deployed, and Maintained a multi-colo online media provider system for web based publishing and sharing of user generated music, video, and photos. From August 2005 to December 2006 (1 year 5 months) Music @ Pasco-Hernando CC From 2002 to 2005 Michael Heijmans is skilled in: Distributed Systems, Scalability, MySQL, Git, Subversion, Ruby, High Availability, REST, HBase, Hadoop, Ruby on Rails, Databases, Heroku, Cassandra, Amazon S3, Test Driven Development, Software Development, Java, PostgreSQL, Amazon SQS, Apache, Red Hat Linux, Chef, Amazon Web Services..., Amazon EC2, System Architecture, IP Networking, RSpec, Linux, Agile Methodologies, Cloud Computing, Shell Scripting, Software Engineering
Site Reliability Engineer
February 2015 to Present
Remote
Niche (acquired by Twitter)
Senior Software Engineer
August 2014 to February 2015
Remote
Yahoo!
Senior Service Engineer
May 2012 to August 2014
Yahoo!
Service Engineering Manager
December 2010 to May 2012
Yahoo!
Senior Service Engineer
October 2010 to December 2010
Yahoo!
Service Engineer
June 2008 to October 2010
techTribe Networks
Senior Operations Engineer
May 2007 to May 2008
Nobis Records
Founder/A&R
January 2002 to August 2007
Neoteric Production Group
Founder/Senior Systems Architect
August 2005 to December 2006
What company does Michael Heijmans work for?
Michael Heijmans works for Twitter
What is Michael Heijmans's role at Twitter?
Michael Heijmans is Site Reliability Engineer
What industry does Michael Heijmans work in?
Michael Heijmans works in the Information Technology and Services industry.
Who are Michael Heijmans's colleagues?
Michael Heijmans's colleagues are Erin Malam, Ivan Di, Richard Lawrence, Wajeha Shah, Paul DeRose, MBA, Scott Huang, Olivia Cascio, David Cooper, Max Werd, and Rachit Parasrampuria
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