I know YC favours devops over traditional sysadmin positions, but doesn't hurt to try I suppose :)
Location: near Toronto
Remote: sure, why not
Willing to relocate: depends
Technologies: 20 years of Linux experience (have also worked with other *nix systems - some Windows is OK too)
Storage/virtualization (openZFS, QEMU)
Networking/firewalls (iptables/ipsets)
DNS/web/mail (and other infrastructure services)
Minor ansible knowledge
Hobby-level web programming (HTML/mysql/PHP)
Résumé/CV: upon request
Email: please reply with yours (or a LinkedIn post) and I will contact privately