Jay Janssen
Databases and Infrastructure
- Role
- Database Platform Engineer at Block
- Location
- York, PA, US
- LinkedIn followers
- 500 followers
About Jay Janssen
Blend of interests in Backend and Infrastructure Systems, Software Development, and meeting Business requirements
Experience
Database Platform Engineer
Apr 2022 — Present
MySQL DRI for performance issues, platform processes and bugs, and outage response/root cause analysis. Provided direct MySQL support to application developers regarding performance, high availability, db operations, app design, etc. Created and delivered documentation, trainings, for developers.Migrated a fleet of on-premise MySQL clusters to Amazon Aurora, building a cutover process that averaged around 20s of application downtime and fallback. Created blue/green upgrade procedure for Aurora Global cluster v2 to v3 in the absence of an AWS-supported solution.Acted as team technical lead, mentored engineers, elevating system and code standards, created and hosted regular cross-training discussions to elevate team knowledge on Aurora/MySQL.
Education
Rochester Institute of Technology
BS, Computer Science
1994 — 1999
Skills
- Bash
- Node.js
- Subversion
- Mysql
- Gnu Make
- Software Development
- Python
- Javascript
- Nagios
- Scalability
- Software Engineering
- Shell Scripting
- Munin
- Apache
- Perl
- Non-Blocking Programming
- Freebsd
- Sql
- Cgi
- Linux
- Galera
- Php
- Html
- Vagrant
- Puppet
- Rhel
- Git
- Mysql Tools
- Debian
- High Availability
- Web Applications
- C++
- C
- Cgi/Perl
- Unix Shell Scripting
- Red Hat Linux
- Ruby
- Cluster
- Unix
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