Kurt Mosiejczuk

585 . 310 . 2357
kurt (at) mosiejcz.uk
PDF Resume

Interests

Results-oriented UNIX/Windows Systems Administrator with 20+ years experience and open source OS Developer. Adept at forward-planning, problem-solving, and specification and integration of systems for a targeted userbase.

Skills

  • Languages:
  • C, Shell scripting (sh/ksh/bash), SQL, Perl, Python, Ruby, Tcl/Tk/Expect
  • Environments:
  • OpenBSD, Windows Server, Windows 10, Debian, Ubuntu, Solaris (2.5.1-10), CentOS
  • vCenter, ESXi, vMotion
  • Windows Active Directory, Windows Server Update Services, Netapp
  • MySQL, PostgreSQL, SQLite
  • Commvault, Bacula, Amanda, rsync
  • CVS, Git, Github, Gitlab
  • PF, IPFilter, PXEboot, NFS, NIS, Kerberos, LDAP, DNS, DHCP, BIND, Unbound
  • qmail, OpenSMTPd, Sendmail, Dovecot, Roundcube
  • Apache, NGINX, OpenBSD httpd
  • Nagios, Zabbix

Education

Bachelor of Science in Applied Networking and Systems Administration

Rochester Institute of Technology
Rochester, NY
2014

Recent Experience

Systems Reliability Engineer

Calyptix Security Corporation
June 2021 - September 2023
  • Preventative software maintenance and support for OpenBSD-based security appliances for small/medium-sized businesses
  • Cleanup and refactoring of legacy code
  • Creation of software ports to upstream and reduce maintenance burdens
  • Improved site and procedures documentation

Unix / Windows Systems Administrator

Rochester Institute of Technology
January 2004 - May 2021
  • Purchased, configured, deployed and maintained faculty and department equipment and peripherals
  • Coordinated physical access to facilities using Lenel access control systems
  • Maintained dozens of project VMs using VMWare ESXi and performed migrations
  • Direct integration of Kerberos and LDAP between AD and Linux/OpenBSD
  • Configured Ghostcast production servers and deployed hands-free installation with custom scripting
  • Managed student employees and interfaced with a multi-departmental team of IT professionals
  • Disaster planning and high-pressure patching and redeployment and intrusion response
  • Developed organizational knowledge and procedures record-keeping

OS Developer

The OpenBSD Project
2019 - Present
  • Sparc64 release and snapshot package builds
  • Porting, with a focus on Python port integration
  • Improvement of project testing infrastructure for Python ports
  • Improvement of portgen, automated software-porting infrastructure
  • Regularly created fixes for Python software and supplied them to upstream projects
  • Forked LWJGL3 and created OpenBSD support

Invited Talks

Making Your Own Console Server Using OpenBSD
BSDCan 2018
The Care and Feeding of OpenBSD Porters
vBSDCon 2019

Projects

github.com/kmosiejczuk

Previous Experience

Systems Engineer

Pitney Bowes Management Systems (formerly Danka)
January 2001 - July 2002

Senior Consultant

Ciber (assigned to Danka Systems Intl)
July 2000 - January 2001
  • Designed and deployed computing and network resources for customer print sites
  • Implemented reliability infrastructure for ASP production server
  • Supported numerous customer sites

Field Engineer

Rochester Software Associates
February 1998 - July 2000
  • Developed plan allowing customers to upgrade OS, Oracle, and related components for Y2K compliance
  • Helped develop plan to consolidate company computing resources for increased performance and reliability
  • Responsible for Y2K compliance of company servers

Software Development Contractor

Manpower (for West Group)
June 1996 - February 1998
  • Participated in migrating AutoCite project to work with new database
  • Worked extensively data mining legacy database
  • Participated in automating manual processes for publishing NYCRR

Software Development Co-op

Lawyer's Cooperative Publishing (now West Group)
June 1995 - June 1996
  • Tested, debugged, and wrote user documentation for applications written in PowerBuilder
  • Coded SQL scripts to implement publication-formatting options via database tables
  • Coded helper applications cutting debug time by 75% when developing formatting option scripts