{"id":176112,"url":"https://alion.io/job/granica-senior-software-engineer-lakehouse-systems","title":"Senior Software Engineer — Lakehouse Systems","company":{"id":8292,"name":"Granica","domain":"granica.ai","url":"https://alion.io/company/granica","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"B","score":70,"open_postings":10,"ghost_share":0.5,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-10-28T05:59:10Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["San Francisco, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":160000,"max":240000,"currency":"USD","period":"year","gross":null,"usd_annual":240000},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AI Agents","optional":false},{"name":"Amazon S3","optional":false},{"name":"C++","optional":false},{"name":"Delta Lake","optional":false},{"name":"DuckDB","optional":false},{"name":"Flink","optional":false},{"name":"Java","optional":false},{"name":"Rust","optional":false},{"name":"Scala","optional":false},{"name":"Trino","optional":false}],"status":"live","first_seen_at":"2026-08-27T20:35:24Z","employer_posted_date":"2026-10-06","last_verified_at":"2026-10-29T01:01:48Z","board_verified":true,"closed_at":null,"days_open":62,"trust":{"level":"ok","repost_count":0,"flags":["company_stale"],"days_open":61},"description":"Senior Software Engineer - Lakehouse Systems\nLocation: Mountain View, CA - On-site\nAbout Granica\nGranica is building the efficiency and intelligence layer for enterprise AI.\nCrunch makes massive enterprise data cheaper and easier to operate.\n\nLarge Tabular Models learn from structured data to support shared intelligence across many capabilities.\n\nMyelin makes long-running AI agents more efficient and durable.\n\nGranica has processed hundreds of petabytes of tabular data in production, and our research is led by Stanford Professor Andrea Montanari.\nAbout the Role\nGranica is hiring a Senior Software Engineer to build foundational lakehouse systems for AI.\nYou will work on the core infrastructure behind Crunch, Granica’s continuous optimization product for enterprise lakehouse data. This includes systems for metadata management, transaction semantics, table maintenance, object-store-backed storage layouts, file optimization, and lakehouse cost/performance across petabyte- and exabyte-scale environments.\nYou will own core systems that directly affect customer infrastructure cost, query performance, table reliability, and the operational health of large lakehouse environments.\nThis is a hands-on systems role for engineers who have gone deep onlakehouse internals, table formats, metadata systems, storage layout, or distributed storage infrastructure.\nWhat You’ll Do\nBuild metadata, transaction, and table-maintenance systems for large-scale lakehouse datasets\n\nWork with Iceberg, Delta Lake, Hudi, manifests, snapshots, transaction logs, schema evolution, and garbage collection\n\nOptimize compaction, clustering, file sizing, data skipping, pruning, and physical data layout\n\nImprove performance and cost efficiency across Parquet/ORC and object stores such as S3, GCS, and ADLS\n\nDebug and optimize bottlenecks across metadata, storage, table maintenance, object-store access, and query execution\n\nWhat We’re Looking For\nDeep engineering experience in distributed systems, storage systems, databases, or data infrastructure\n\nProduction experience building, extending, or deeply optimizing lakehouse or table-format systems such as Iceberg, Delta Lake, Hudi, or similar technologies\n\nStrong understanding of metadata architectures, transaction semantics, snapshots, manifests, schema evolution, and physical data layout\n\nHands-on experience with table maintenance, compaction, clustering, file sizing, Parquet/ORC, and cloud object stores such as S3, GCS, or ADLS\n\nStrong programming skills in Java, Scala, Go, Rust, C++, or a similar systems-oriented language, with a pragmatic end-to-end builder mindset\n\nBonus\nContributions to Iceberg, Delta Lake, Hudi, Parquet, ORC, Spark, Trino, Flink, Velox, DuckDB, DataFusion, or related systems\n\nExperience with small-file optimization, metadata scaling, delete handling, catalog consistency, indexing, caching, compression, or storage-engine internals\n\nResearch or open-source contributions in distributed systems, databases, storage, compression, or data processing\n\nWhy Join Granica\nBuild foundational infrastructure for enterprise data and AI\n\nWork on deep systems problems across lakehouse metadata, table formats, storage layout, and object-store behavior\n\nOwn meaningful parts of the architecture in a small, high-caliber engineering team\n\nWork directly with Product, Engineering, and company leadership\n\nHave direct impact on customer performance, infrastructure cost, product direction, and company growth\n\nCompensation & Benefits\nCompetitive salary, meaningful equity, and performance bonus for top performers\n\n401(k) with company match, comprehensive health coverage, and unlimited PTO\n\nDaily catered meals in our Mountain View office\n\nSupport for research, publication, and conference participation\n\nAt Granica, you'll help build the next generation of enterprise AI -from exabyte-scale data infrastructure, Large Tabular Models (LTMs), and stateful AI agents. Together, we're creating the infrastructure that enables enterprises to own their data, own the intelligence built on it, and scale both efficiently.","description_format":"text","description_chars":4079,"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","Unlimited PTO"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["MLOps","Cloud Cost & Multi-Cloud Management","AI Compute & Inference"],"lifecycle":[{"event":"open","at":"2026-08-30T14:25:15Z"}],"visa":[],"liveness":{"score":13,"band":"cold","label":"Long shot","p_open":1,"p_active":0.366,"p_room":0.36,"age_days":61,"expected_fill_days":36,"reasons":["conf:3","stale_co","win:tail","crowd:"],"computed_at":"2026-10-28T05:59:10Z"},"pay":{"stated_usd_annual":240000,"is_top_pay":true},"html_url":"https://alion.io/job/granica-senior-software-engineer-lakehouse-systems","json_url":"https://alion.io/job/granica-senior-software-engineer-lakehouse-systems.json","meta":{"generated_at":"2026-10-29T01:40:41Z","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_verified","counted_by":"address","units_charged":1,"used_today":2538,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-30T00:00:00Z"}},"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":8292},"rest":"https://alion.io/mcp/rest/get_company?id=8292"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fgranica-senior-software-engineer-lakehouse-systems"},{"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%2Fgranica-senior-software-engineer-lakehouse-systems"},{"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%2Fgranica-senior-software-engineer-lakehouse-systems"},{"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/granica-senior-software-engineer-lakehouse-systems\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fgranica-senior-software-engineer-lakehouse-systems"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":176112}},{"tool":"search_jobs","arguments":{"company":"granica.ai","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":176112},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. 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