{"id":783564,"url":"https://alion.io/job/topoteretes-principal-engineer","title":"Principal Engineer","company":{"id":720770,"name":"Cognee","domain":"cognee.ai","url":"https://alion.io/company/cognee","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workable","truth_index":{"grade":"B","score":75,"open_postings":4,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-09-29T05:45:00Z"}},"role":"Industrial Engineering","role_family":"Industrial Engineering","seniority":"lead","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Berlin, Germany"],"countries":["DE"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":null,"max":150000,"currency":"EUR","period":"year","gross":null,"usd_annual":172194},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AI Agents","optional":false},{"name":"CI/CD","optional":false},{"name":"GitHub","optional":false},{"name":"Python","optional":false},{"name":"Rust","optional":false}],"status":"live","first_seen_at":"2026-01-01T00:00:00Z","employer_posted_date":"2026-01-01","last_verified_at":"2026-09-30T00:19:35Z","board_verified":true,"closed_at":null,"days_open":272,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":271},"description":"Cognee is building the memory engine + data plane for AI agents to plan, reason, and act. Our open-source Python SDK is in production at 70+ companies, hit GitHub Trending, and runs 550 000 times a month. We’ve won early customers (top 10 Pharma etc) and just raised a largeSeed.\nWe’re hiring a Principal Engineer to own the Cognee SDK as a product surface area - setting technical direction, raising engineering quality, and scaling adoption.\nYou'll be coding in Python and Rust.\nWhat you’ll own\nSDK architecture, API design, and roadmap (Python now, future SDKs later)\nRelease engineering: versioning, compatibility, CI/CD, testing, benchmarks\nPerformance, reliability, observability, and production readiness\nDeveloper experience: docs, examples, reference implementations\nOpen-source stewardship: contribution workflows, PR reviews, community support\nCross-team leadership: shaping core platform contracts through the SDK\nRequirements\nWhat we’re looking for\nPrincipal-level ownership of a high-adoption SDK / developer platform / core library\nDeep Python skills (packaging, typing, testing, performance, clean APIs)\nExperience with production systems\nStrong taste for DX and high standards for stability and maintainability\nBonus: open-source leadership, agent/memory/retrieval systems experience\nHands-on experience with LLMs\nThe SDK is how the world experiences Cognee - you’ll define it.\nBenefits\nUp to 150 000 EUR + Equity\nCompany sponsored meals\nTrips to San Francisco\nFetch breaks with the office dog","description_format":"text","description_chars":1510,"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"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["AI Agents","Vector Search & RAG","Knowledge Graphs"],"lifecycle":[{"event":"open","at":"2026-09-12T01:12:37Z"}],"liveness":{"score":5,"band":"cold","label":"Long shot","p_open":1,"p_active":0.196,"p_room":0.28,"age_days":271,"expected_fill_days":24,"reasons":["conf:3","win:tail","crowd:"],"computed_at":"2026-09-29T05:45:00Z"},"pay":{"stated_usd_annual":172194,"is_top_pay":false},"html_url":"https://alion.io/job/topoteretes-principal-engineer","json_url":"https://alion.io/job/topoteretes-principal-engineer.json","meta":{"generated_at":"2026-09-30T04:49:51Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","usage":{"tier":"crawler","counted_by":"address","units_charged":1,"used_today":3422,"day_limit":5000,"remaining_today":1578,"minute_limit":60,"resets_at":"2026-10-01T00:00:00Z"}}}