Staff Software Engineer (Unified Compute)

About the role

Seqera, behind Nextflow and the Seqera Platform, is looking for a Staff Software Engineer to join its Unified Compute team. The role takes technical ownership of the low-level systems that run scientific workloads in the cloud, including the scheduling project Sched, and sits deep in the stack: Fusion (a FUSE filesystem presenting cloud object storage as POSIX), Fusion Snapshots (CRIU-based checkpoint/restore), and Ignite (a container process manager), with Sched as the orchestration layer.

Key responsibilities

• Design, build and own low-level systems across Fusion, Fusion Snapshots, Ignite and Sched.
• Write reliable, well-tested code mainly in Go and C, using Rust and JVM (Groovy/Java, Micronaut) where needed.
• Work close to the OS: FUSE filesystems, Linux namespaces, CRIU checkpoint/restore, process supervision, signal handling, static musl builds.
• Build multi-cloud orchestration and scheduling: provider abstractions (AWS, Azure, GCP), instance selection, autoscaling, spot-instance fault tolerance, durable async queues.
• Drive performance engineering: chunked I/O, multi-level caching, buffer pools, bandwidth management.
• Set technical direction for testing, observability and operational excellence, mentor teammates and help onboard new engineers.

Required profile

• Deep experience building production-grade systems software with technical ownership at Staff level.
• Solid Linux internals knowledge (filesystems, namespaces, processes, signals, networking) and ability to debug at that level.
• Built distributed and/or cloud-native systems and understands failure modes across multiple clouds.
• Writes clear, well-structured, well-tested code and works independently with ambiguity.
• Open to extensive use of AI in daily work.

Required skills

• Go and C (or C++)
• Nice to have: CRIU, FUSE, Rust, JVM, container runtimes, Docker, Kubernetes, HPC/Batch, applied ML and open-source contributions

What we offer

• Flexible working hours and international team
• 23 vacation days per year, 3 days in December and public holidays
• Equity, private health and life insurance, home office allowance, mental health app subscription and learning budget