Curriculum vitae / Lauri Tirkkonen

Contact

2008–2016: M.Sc. (Tech), Computer Science and Engineering at Aalto University School of Science (form. Helsinki University of Technology)
2007: matriculation at Outokummun lukio

Siili
Staff SRE, December 2019–present
Tuxera Inc.
Release Engineer, April 2017–December 2019
Aalto University Department of Computer Science and Engineering
Systems Designer, May 2009–May 2011, September 2011–March 2017
- Unix (Solaris, illumos, Linux, OpenBSD) server and workstation administration. Xen and KVM virtualization, containerization with illumos zones
- Building and upgrading internal systems, migrating from legacy solutions. Examples:
  - LDAP authentication and name services
  - Puppet configuration management for workstations and servers
  - Redundant firewalls with pfsync and CARP
- Improving processes and workflows, eg. putting everything under version control, deploying an issue tracker
Eniram Ltd.
Software Developer, May 2011–August 2011
- Maintenance/development of custom Linux distribution
- Utilities and automation in Python and shell
Assembly Organizing
SystemsCrew/Function Head, December 2010–February 2011
SystemsCrew/Field Engineer, August 2010–December 2010
InfoCrew/Customer Support, August 2008–July 2010

Operating systems
- OpenBSD
- Various GNU/Linux distributions (Debian, Ubuntu, RHEL… you name it)
- illumos, Solaris 10, 11, OpenSolaris
Language preferences: Python, shell, C
Instrumentation and debugging
- bpftrace, DTrace, traditional debuggers like gdb, mdb
- traditional Unix visibility tools (strace/truss/ktrace, ps, netstat, vmstat, fstat, etc.)
Strong TCP/IP knowledge and debugging skills
ZFS
Network security, eg. firewalls (pf, iptables), PKI (SSL/TLS), PGP, authentication and authorization
Configuration management: Ansible, Puppet
Porting, packaging, patching and contributing to open source software