Canonical seeks Performance Engineers to drive software performance and correctness in projects and shared tooling. Responsibilities include analysing systems and code for performance and scalability, strengthening test harnesses and pipelines, building measurement/analysis/reporting infrastructure, collaborating with global teams and community, and mentoring colleagues. Candidates should have an undergraduate degree in CS, Math or Physics, strong Linux experience, demonstrable performance work, and professional English.

Canonical is hiring an open-source networking software engineer to design, implement and upstream networking software (ToR switch and SmartNIC/DPU focus). The role requires strong Linux networking and systems programming skills (C/C++ and one of Rust, Python or Go), experience with projects like SoNIC/DENT and technologies such as DPDK, eBPF and virtualization, and willingness to travel twice yearly for team events.

Work across the full Linux stack (kernel through networking, virtualization and graphics) to design and implement Ubuntu integrations for new hardware. Collaborate with silicon partners to optimise performance, build device OS images, integrate SDKs/apps, and define testing and quality strategies. Required experience includes Linux packaging, open source collaboration and programming in Python, C and C++.

Work remotely with a globally distributed kernel team to develop, test, patch and maintain Ubuntu Linux kernels across architectures (embedded to cloud). Responsibilities include kernel debugging, patch submission and review, tooling and automation for delivery and testing, collaboration with silicon and cloud partners, and participation in periodic in-person engineering events. Requires strong C programming, git, broad Linux kernel knowledge, and professional English communication.

Work remotely (EMEA or Americas) on Canonical's Snapd team developing and maintaining mission-critical Go code and system-level Linux features (cgroups, namespaces, AppArmor). Role involves writing and reviewing high-quality code, debugging Linux system issues, testing (unit/integration), and collaborating with a distributed team; travel up to two weeks twice a year.

Canonical hires engineers to develop and optimise low-level Linux and Ubuntu Core software for autonomous and connected devices. Work includes kernel and driver development, hardware enablement, device OS image building, debugging and optimisation, packaging and toolchain work, and participation in open-source communities. Remote roles are available worldwide; occasional global travel for company events is required.

Work on the Security Hardening team to extend Linux cryptographic components (OpenSSL, Libgcrypt, GnuTLS), develop audit and remediation automation for DISA-STIG and CIS benchmarks, collaborate with kernel and upstream projects, and engage external partners and consultants to achieve and retain security certifications for Ubuntu.

Canonical seeks a Python Software Engineer for the Integrations team to design, develop, deploy and operate Python-based automation for SaaS seat management and to integrate internal and external data sources into the data mesh using open-source ETL tools. The role is remote within EMEA and may include mentoring responsibilities and biannual international travel for company events.

Canonical seeks a lead Linux kernel engineer to architect, implement and deliver improvements across the Ubuntu kernel — including partner engagements, security hardening, performance and packaging. Role requires deep operating-system/kernel expertise, strong C skills, experience with packaging (Ubuntu/Debian/Snap valued), Python/Bash and git, plus leadership and remote-collaboration abilities. Position is home-based worldwide and expects the ability to travel internationally (~twice a year).

Canonical seeks a Golang Software Engineer (any seniority) to join Commercial Systems, developing and operating backend services (Billing, Contracts, or Livepatch) that integrate with business systems. Responsibilities include designing solutions, leading technical design and code reviews, deploying and operating services, and mentoring colleagues. Requirements: experience with Go, strong engineering quality, English communication, and ability to travel internationally twice a year. Nice-to-haves: performance engineering, security, and experience with accounting/sales domains.

Lead the design and implementation of an advanced automated Linux kernel build/control system and work with engineering teams to integrate into the Canonical ecosystem. Requires strong experience with kernel build systems (kbuild, kconfig, make), kernel patching, advanced git usage, and significant Python programming (C skills highly regarded). Familiarity with Yocto/buildroot, CI/CD, packaging (Ubuntu/Debian/Snap), and CLI/REST tooling is desirable. Role is senior and requires leadership and effective English communication; home-based within Europe, Middle East, or Africa with periodic in-person team sprints.

Canonical seeks a Junior Developer skilled in Python and with working knowledge of Go to develop a resilient, scalable cloud-native monitoring/observability stack for Kubernetes, OpenStack, VMs and containers. Role is remote (EMEA and Americas), involves collaborating with a distributed team, writing and testing code, debugging, code review, community interaction and periodic global travel for events.

Canonical is hiring recent graduates and early-career engineers to work on the Linux kernel for Ubuntu. Responsibilities include developing and maintaining kernels across platforms, working with silicon/cloud partners, debugging and patching kernels, improving tooling and automation, and collaborating with upstream maintainers. Candidates should have programming experience in C and/or Rust, familiarity with git, an understanding of OS kernel fundamentals, and be able to travel twice yearly for team events.

Work on Juju, a large open-source Go project for model-driven operations across public/private cloud, Kubernetes, and bare metal. Role involves designing, delivering and supporting features in a highly concurrent distributed system, collaborating with a distributed team, interacting with upstream communities, and travelling up to four times per year. Required: experience developing in Go and excellent English communication.

Canonical seeks a remote (EMEA) Distributed Systems Engineer to design, build and operate high-performance APIs and streaming data services for IoT. Responsibilities include architecting scalable backend services, messaging/data pipelines, cloud-based SaaS and containerized on-prem deployments, implementing governance, auditing and security (IAM, encryption, GDPR/HIPAA), using technologies such as Go, Python, MQTT, Kafka, RabbitMQ, OpenTelemetry, OPC‑UA and ModBus. Role involves mentoring, code/design review, cross-functional collaboration and occasional global travel (approx. 2–4 weeks/year).

Work on low-level Go code between the REST API and C libraries for LXD, designing and implementing system-level features, modeling data and database schemas stored in dqlite, and maintaining code quality with static analysis and tests. Requires experience with Go and C, knowledge of networking and storage, and experience with at least two of cloud computing, virtualization, containers, distributed systems or open source community involvement. Remote role available in EMEA and the Americas with periodic travel (2–4 weeks/year).

Canonical is hiring Golang engineers (all seniority levels) to design, implement, test and operate Go software used across Ubuntu-related systems. Roles require strong Linux experience, proficiency in Go, and for senior roles experience with distributed systems and APIs. The position is fully remote with occasional travel (up to twice yearly) for in-person team events.

Remote staff-level role working on authentication and authorization across Canonical products and websites. Responsibilities include designing and implementing IAM features and web service APIs (Go, Python), crafting end-user authentication flows, writing Juju charms, and modernizing the identity stack; requires experience with IAM standards (OpenID, OAuth, LDAP), authorization in distributed systems, secure coding, and working on Ubuntu. Role includes international travel ~2x/year.

Work on a new open-source developer tooling product integrated with Ubuntu desktop, IDEs, and vendor SDKs. Responsibilities include designing user experience, writing high-quality Go code, ensuring correctness, performance and security, and collaborating across teams. Requires professional development experience (Go, Python, C or C++), knowledge of Linux system-level fundamentals (e.g., cgroups, namespaces). Nice-to-have: LXC/LXD, AI/ML and CUDA/OpenVINO, and package manager internals. Role is remote within APAC time zones and requires travel twice yearly for company events.

Canonical seeks an Engineering Manager (remote, worldwide) to lead and develop a team of Python engineers focused on open-source automation, infrastructure-as-code, and DevOps workflows (Ubuntu, OpenStack, Kubernetes). Responsibilities include hiring, coaching, hands-on technical leadership, planning delivery, stakeholder coordination and occasional global travel (up to 10%).