About Klara Inc.
Klara provides open source development services with a focus on FreeBSD, ZFS, and Arm. Our mission is to advance technology through community-driven development while maintaining the ethics and creativity of open source. We help customers standardize and accelerate platforms built on FreeBSD and ZFS, combining internal expertise with active participation in the community.

About The Role – OpenZFS Developer
As an OpenZFS Developer reporting to the ZFS Engineering Manager, you’ll join a cross-functional team enhancing the OpenZFS file system. This includes designing and implementing new features, resolving complex bugs and performance issues, and contributing upstream across multiple operating systems.

Key Responsibilities

Develop OpenZFS features as part of a remote, global team

Own the full lifecycle: design, implementation, review, upstreaming, and maintenance

Analyze and resolve ZFS performance issues





Collaborate with the community on patch submission and feedback

Participate in monthly upstream developer meetings

Work across Linux, FreeBSD, and illumos platforms

Translate technical requirements into high-level design and documentation

Skills And Qualifications

Strong C programming and data structure fundamentals

Proficiency with Git and source control workflows

Understanding of ZFS internals (SPL, DMU, vdevs, etc.)

Experience with VFS and OS-level file system design

Knowledge of OS concepts: threading, locking, IPC, lifecycle management

Proven ability to deliver on schedule

Solid communication and documentation skills

Experience with customers or end-user interaction

Prior open source contributions; kernel development experience is a plus

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📌 OpenZFS Developer (Ontario)
🏢 Klara
📍 Ontario