klarainc

klarasystems.com | Senior OpenZFS Developer | REMOTE | Full-time Contract

We have successfully hired from HN in previous rounds and are looking for another OpenZFS Developer (4+ years of experience) to join our team!

Klara Inc. provides development & solutions focused on open source software and the community-driven development of OpenZFS and FreeBSD. We develop new features, investigate/fix bugs, and support the community of these important open source infrastructure projects. Some of our recent work includes major ZFS features such as Fast Deduplication (OpenZFS 2.3) and AnyRAID: https://github.com/openzfs/zfs/pull/17567 https://github.com/openzfs/zfs/pull/18406

We’re looking for an OpenZFS Developer with:

- Strong C programming skills and understanding of data structures

- Experience with file systems, VFS, and OS internals (threading, locking, IPC, memory management)

- Familiarity with ZFS internals (DMU, MOS, vdevs, ZPL, datasets, boot environments)

- Ability to work across Linux, and FreeBSD environments

Previous upstream contributions to OpenZFS or other open source projects are a big plus.

Submit an application through our site: https://klarasystems.com/careers/openzfs-developer/

Klara Systems | https://klarasystems.com | Technical Marketing Engineer | Remote | Full-time / Contract

Klara Systems is a FreeBSD and ZFS engineering company serving enterprise customers across North America and Europe. Our team is senior, globally distributed, and operates with a high degree of autonomy.

We’re looking for a Technical Marketing Engineer who turns engineering work into technical content that helps buyers evaluate Klara’s services and provides engineers with useful, technically accurate resources. can find. You will interview engineers and consultants, mine incident write-ups, support cases, upstream PRs, mailing lists, and delivery lessons for source material, then turn that material into technical articles, pages, comparisons, FAQs, and migration guides. You will also build scripts and LLM-powered workflows to automate knowledge extraction, reporting, and first drafts.

You should have:

- A background in software development, systems administration, or a related technical field.

- The ability to hold a technical conversation with an operating systems or storage expert and turn it into something publishable.

- Daily experience using AI tools to produce technically accurate and high-quality assets.

- An understanding of technical buyer personas and how to build content they actually want to read.

Apply: https://klarasystems.com/careers/technical-marketing-enginee...

FreeBSD Jails and Linux LXC both provide operating system-level virtualization, but their design philosophies differ significantly. This article explores how each approach handles isolation, security, observability, ZFS integration, and operational complexity to help infrastructure teams determine which model best fits their environment.

Discover how OpenZFS and SeaweedFS combine to provide high-performance, scalable object storage. This guide covers architecture, deployment, and optimization on Linux and FreeBSD.

ZFS for media production allows studios to optimize storage for each department, improving performance across animation, compositing, editorial, and databases while maintaining strong data protection and simple project isolation.

Adding disks isn’t always the answer anymore.

With Fast Dedup in OpenZFS, duplicated data across VMs, backups, and containers can be collapsed—turning existing storage into significantly more usable capacity.

L2ARC won’t replace RAM—but it can recover performance when memory is tight.

The catch: every cached block still consumes ARC memory.

Sizing and tuning matter.

Technical independence is a critical design principle for modern storage infrastructure. This article explores how FreeBSD and OpenZFS provide transparency, hardware portability, and data portability

Klara Inc | FreeBSD System Administrator | Remote (EST, CET) | Full-time Contract

Klara Inc. provides development & solutions focused on open source software and the community-driven development of OpenZFS and FreeBSD.

We are looking for a medior sysadmin to join our team:

* Administer and maintain FreeBSD servers across customer and internal environments

* Build, update, create, and repair FreeBSD ports and packages

* Manage ZFS storage systems and support virtualization platforms (e.g., bhyve, Proxmox, KVM)

* Challenging, high-impact projects with global customers

* Remote-first environment with flexible working hours

You can submit an application on our website: https://klarasystems.com/careers/freebsd-medior-system-admin...

klarasystems.com | OpenZFS Developer | REMOTE | Full-time

We successfully hired from HN in the last round and are looking for more OpenZFS Developers (4+ years of experience) to join our team!

Klara Inc. provides development & solutions focused on open source software and the community-driven development of OpenZFS and FreeBSD. We develop new features, investigate/fix bugs, and support the community of these important open source infrastructure projects. Some of our recent work includes major ZFS features such as Linux Containers support (OpenZFS 2.2: https://github.com/openzfs/zfs/pull/12263), and Fast Deduplication (OpenZFS 2.3: https://github.com/openzfs/zfs/discussions/15896).

We’re looking for an OpenZFS Developer with:

- Strong C programming skills and solid understanding of data structures - Experience with file systems, VFS, and OS internals (threading, locking, IPC, memory management) - Familiarity with ZFS internals (DMU, MOS, vdevs, ZPL, datasets, boot environments) - Ability to work across Linux, FreeBSD, or illumos environments Upstream contributions to OpenZFS or other open source projects are a big plus.

Submit an application through our site: https://klarasystems.com/careers/openzfs-developer/

Klara Inc | Fully Remote | Global | Full-time Contract Developer

Klara Inc (klarasystems.com) provides development & solutions focused on open source software and the community-driven development of OpenZFS and FreeBSD. We develop new features, investigate/fix bugs, and support the community of these important open source infrastructure projects. Some of our recent work includes major ZFS features such as Linux Containers support (OpenZFS 2.2: https://github.com/openzfs/zfs/pull/12263), and Fast Deduplication (OpenZFS 2.3: https://github.com/openzfs/zfs/discussions/15896).

We successfully hired from HN in the last round and are looking for more OpenZFS Developers (3+ years of experience) to join our team!

- Strong skills with Kernel C programming and data structures

- Experience with file systems, VFS, and related operating system concepts (threading, synchronization primitives/locking)

- Awareness of ZFS (MOS, DMU, ZPL, pooled storage, datasets, vdevs, boot environments, etc) concepts.

You can submit an application on our website: https://klarasystems.com/careers/openzfs-developer/

If you'd rather talk to us via e-mail, just drop us a line at [email protected].

Klara Inc | Fully Remote | Global | Full-time Contract Developer

Klara Inc (klarasystems.com) provides development & solutions focused on open source software and the community-driven development of OpenZFS and FreeBSD.

We develop new features, investigate/fix bugs, and support the community of these important open source infrastructure projects. Some of our recent work includes major ZFS features such as Linux Containers support (OpenZFS 2.2: https://github.com/openzfs/zfs/pull/12263), and Fast Deduplication (OpenZFS 2.3: https://github.com/openzfs/zfs/discussions/15896).

We're looking for OpenZFS Developers (3+ years of experience) to join our team:

- Strong skills with Kernel C programming and data structures

- Experience with file systems, VFS, and related operating system concepts (threading, synchronization primitives/locking)

- Awareness of ZFS (MOS, DMU, ZPL, pooled storage, datasets, vdevs, boot environments, etc) concepts.

You can submit an application on our website: https://klarasystems.com/careers/openzfs-developer/

If you'd rather talk to us via e-mail, just drop us a line at [email protected].