{"id":1952815,"url":"https://alion.io/job/seqera-staff-software-engineer-3","title":"Staff Software Engineer","company":{"id":4929,"name":"Seqera","domain":"seqera.io","url":"https://alion.io/company/seqera","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":null},"role":"Backend","role_family":"Backend","seniority":"staff","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Barcelona, Spain"],"countries":["ES"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":77000,"max_usd":161000,"period":"year","method":"global_role_cell_scaled_by_country","sample_n":1827},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AWS","optional":false},{"name":"Azure","optional":false},{"name":"C++","optional":false},{"name":"GCP","optional":false},{"name":"Groovy","optional":false},{"name":"Java","optional":false},{"name":"Linux","optional":false},{"name":"Micronaut","optional":false},{"name":"Rust","optional":false},{"name":"Docker","optional":true},{"name":"HPC","optional":true},{"name":"Kubernetes","optional":true}],"status":"live","first_seen_at":"2026-10-06T08:33:36Z","employer_posted_date":"2026-10-06","last_verified_at":"2026-10-10T00:30:46Z","board_verified":true,"closed_at":null,"days_open":3,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":3},"description":"About Seqera\nSeqera is on a mission to empower scientists and organizations to solve humanity’s biggest challenges through data-driven science. As the company behind Nextflow and the Seqera Platform, we enable global enterprises, biotech innovators, academic institutions, and public sector organizations to scale complex data workflows with confidence.\nWe’re a global, remote-friendly team with headquarters in Barcelona and colleagues across the US, UK, and beyond. As we continue to grow, we’re strengthening our internal foundations - and that’s where you come in.\nAbout the role\nWe are looking for a Staff Software Engineer to join our Unified Compute team and take technical ownership of the low-level systems that power how scientific workloads run in the cloud. Our scheduling project (Sched) has gained real momentum, and we need a senior engineer to help build the ecosystem around it to the next level. The core of this role is deep in the stack - Fusion (a FUSE filesystem presenting cloud object storage as POSIX), Fusion Snapshots (CRIU-based checkpoint/restore that survives spot-instance reclamation), and Ignite (a container process manager) - with Sched as the orchestration layer that ties compute together. You'll also support adjacent services such as Groundswell (ML-based resource prediction) and Cloudinfo (multi-cloud pricing/metadata). It's a hands-on senior role with strong architectural influence.\nWhat You'll Do\nDesign, build, and own low-level systems across Fusion, Fusion Snapshots, Ignite, and Sched.\n\nWrite reliable, well-tested code primarily in Go and C, with Rust and JVM (Groovy/Java, Micronaut) where the codebase calls for it.\n\nWork close to the OS: FUSE filesystems, Linux namespaces, CRIU checkpoint/restore, process supervision, signal handling, static musl builds.\n\nTackle multi-cloud orchestration and scheduling: provider abstractions (AWS, Azure, GCP), instance selection, autoscaling, spot-instance fault tolerance, durable async queues.\n\nDrive performance engineering - chunked I/O, multi-level caching, buffer pools, bandwidth management.\n\nSet technical direction and raise the standard for testing, observability, and operational excellence.\n\nMentor teammates and help onboard new engineers.\n\nAbout you\nDeep experience building production-grade systems software, with technical ownership at Staff level.\n\nStrong in Go and comfortable in C (or C++), close to the operating system.\n\nSolid Linux internals - filesystems, namespaces, processes, signals, networking - and comfortable debugging at that level.\n\nBuilt distributed and/or cloud-native systems and understand the failure modes of running across multiple clouds.\n\nWrite simple, well-structured, well-tested code; optimize for clarity and debuggability.\n\nComfortable with ambiguity and driving work independently.\n\nWe use AI every day and expect engineers to use it extensively - you don't need to be an expert, but you must be genuinely open to it.\n\nNice to have:\nCRIU / checkpoint-restore / process migration.\n\nFUSE or other filesystem/VFS work.\n\nRust; JVM (Groovy/Java, Micronaut).\n\nContainer runtimes, Docker internals, Kubernetes.\n\nHPC/Batch (AWS Batch, Google Batch, Azure Batch).\n\nApplied ML / data engineering (Groundswell); open-source systems contributions.\n\nWhat will you find working at Seqera?\nFlexible working hours.\n\nInternational working environment with more than 25 nationalities.\n\nPassionate & talented team.\n\nContinuous skills development.\n\nTeam retreats and bonding activities.\n\nA culture where your opinion is valued and your decisions have a real impact on the industry.\n\nExcitement of a fast-growing startup in a constantly changing environment.\n\nGreat benefits\nTime off: 23 days for vacations per year, 3 days given by Seqera in December, and the national/public holidays according to your location.\n\nEquity\n\nPrivate health insurance\n\nPrivate life insurance\n\nHome office allowance (valued over 1,000 USD)\n\nSubscription to Oliva, Mental Health App\n\nLearning and development budget per year (1,000 USD)","description_format":"text","description_chars":4032,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Equity","Flexible schedule","Health insurance","Home office","Life insurance"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Bioinformatics","Scientific & Lab Software"],"lifecycle":[{"event":"open","at":"2026-10-06T10:47:38Z"}],"visa":[],"liveness":{"score":90,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.903,"p_room":1,"age_days":2,"expected_fill_days":41,"reasons":["conf:0","velocity","win:early"],"computed_at":"2026-10-09T06:01:00Z"},"pay":null,"html_url":"https://alion.io/job/seqera-staff-software-engineer-3","json_url":"https://alion.io/job/seqera-staff-software-engineer-3.json","meta":{"generated_at":"2026-10-10T01:27:13Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler","counted_by":"address","units_charged":1,"used_today":2584,"day_limit":5000,"remaining_today":2416,"minute_limit":60,"resets_at":"2026-10-11T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":4929},"rest":"https://alion.io/mcp/rest/get_company?id=4929"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fseqera-staff-software-engineer-3"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fseqera-staff-software-engineer-3"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fseqera-staff-software-engineer-3"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/seqera-staff-software-engineer-3\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fseqera-staff-software-engineer-3"}]}