{"id":127645,"url":"https://alion.io/job/cognition-software-engineer","title":"Software Engineer","company":{"id":48342,"name":"Cognition","domain":"cognition.ai","url":"https://alion.io/company/cognition","size_band":"501-1000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"B","score":81,"open_postings":97,"ghost_share":0.309,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":53,"computed_at":"2026-10-17T05:46:00Z"}},"role":"Backend","role_family":"Backend","seniority":null,"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","New York, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":155000,"max_usd":326000,"period":"year","method":"role_country_seniority_unknown","sample_n":8485},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AI Agents","optional":false},{"name":"Cursor","optional":false},{"name":"Devin","optional":false},{"name":"Function Calling","optional":false},{"name":"Python","optional":false},{"name":"Scale AI","optional":false},{"name":"Tool Use","optional":false},{"name":"Windsurf","optional":false}],"status":"live","first_seen_at":"2026-08-06T18:11:41Z","employer_posted_date":"2026-08-06","last_verified_at":"2026-10-17T21:51:41Z","board_verified":true,"closed_at":null,"days_open":72,"trust":{"level":"ok","repost_count":0,"flags":["company_stale"],"days_open":71},"description":"We are an applied AI lab building end-to-end software agents.\nWe're the makers of Devin, the first AI software engineer.\nOur team is extremely talent-dense. Among our founding team, we have world-class competitive programmers, former founders, and leaders from companies at the cutting edge of AI including Scale AI, Palantir, Cursor, Waymo, Tesla, Lunchclub, Modal, Google DeepMind, and Nuro.\nBuilding Devin is just the first step-our hardest challenges still lie ahead. If you’re excited to solve some of the world’s biggest problems and build AI that can reason on real-world tasks, apply to join us.\nRole Mission\nSoftware Engineers at Cognition are not feature builders. You will be working on some of the hardest open problems in applied AI: how do you build an agent that can reason across thousands of lines of code, spawn and coordinate subagents, use tools reliably across ambiguous long-horizon tasks, and do all of this in a way that a real engineer would trust? You will ship systems that go directly into Devin and Windsurf, two products that millions of developers use to write, debug, and ship code. This is a role for engineers who want to be close to the frontier, who can move fast without cutting corners, and who believe the next 5 years of software engineering will look fundamentally different from the last 5.\nWhat You'll Accomplish\nBuild core agent infrastructure: Design and ship the systems that power Devin's long-horizon task execution: tool use, context management, multi-step planning, subagent orchestration, and sandboxed code execution environments.\n\nImprove Windsurf as an AI-native IDE: Contribute to editor intelligence, agent-in-the-loop workflows, real-time code understanding, and the developer experience that makes Windsurf different from every other IDE.\n\nClose the loop between models and products: Work directly with researchers to translate new model capabilities into shipped features; your feedback shapes what gets prioritized in training.\n\nOwn reliability and performance at scale: Build systems that handle millions of agentic tasks with low latency, high reliability, and the kind of correctness that developers depend on in production.\n\nMove the category forward: Cognition is defining what AI software engineering looks like. You will have real input into what gets built next and why.\n\nExceptional Candidates Have Demonstrated\nSystems engineering depth: Experience building reliable, performant distributed systems; you have strong opinions about correctness, failure modes, and production behavior.\n\nProduct instinct: You care about how the software you build feels to use and you have shipped things that real people depend on.\n\nComfort with ambiguity: You can make progress on hard problems with incomplete specs, learn fast from results, and course-correct without needing a lot of direction.\n\nVelocity without shortcuts: A track record of shipping quickly while maintaining the kind of code quality that a high-density team expects.\n\nCuriosity about agents and AI: You have dug into how LLMs work, how agents fail, and what it takes to make AI-powered systems behave reliably in the real world.\n\nStrong Python proficiency: Python is the primary language across Cognition's codebase; you write clean, well-structured Python and are comfortable owning large Python codebases in production.\n\nRelevant industry experience: Prior experience at a frontier AI lab, applied AI company, or developer tools company; you know what good looks like in this category.\n\nDegree from a top-tier university: BS, MS, or equivalent in Computer Science, Mathematics, Engineering, or a related technical discipline from a highly selective program.\n\nCompensation & Benefits\nBase Salary: $260,000 - $300,000 + Significant early-stage equity\n\nMedical, Dental, Vision: Fully paid for you and your dependents\n\n401(k): Company match included\n\nPerks: Private chef, cozy slippers, endless snacks, and more\n\nEqual Opportunity\nCognition is an equal opportunity employer. We do not discriminate on the basis of race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, veteran status, or any other protected characteristic under applicable law. 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