{"id":3264644,"url":"https://alion.io/job/perplexity-ai-member-of-technical-staff-ai-software-engineer-agent-engine","title":"Member of Technical Staff (AI Software Engineer, Agent Engine)","company":{"id":3,"name":"Perplexity AI","domain":"perplexity.ai","url":"https://alion.io/company/perplexity","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"B","score":81,"open_postings":35,"ghost_share":0,"stale_share":0.771,"repost_share":0,"time_to_fill_p50_days":52,"computed_at":"2026-10-30T05:48:23Z"}},"role":"AI/ML","role_family":"AI/ML","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":["San Francisco, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":250000,"max":405000,"currency":"USD","period":"year","gross":null,"usd_annual":405000},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AI Agents","optional":false},{"name":"Multimodal AI","optional":false},{"name":"Perplexity","optional":false},{"name":"Python","optional":false},{"name":"Playwright","optional":true},{"name":"Reinforcement Learning","optional":true},{"name":"Rust","optional":true},{"name":"TypeScript","optional":true}],"status":"live","first_seen_at":"2026-10-26T06:25:38Z","employer_posted_date":"2026-10-26","last_verified_at":"2026-10-30T11:36:46Z","board_verified":true,"closed_at":null,"days_open":4,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":4},"description":"Perplexity is seeking energetic engineers to join our highly driven Agent Engine team. The Agent Engine team designs and builds powerful agentic experiences including Perplexity Computer, the Comet ecosystem, our Agent API, and more. In short, we build frontier intelligence systems for the world's most discerning users.\nAs an engineer on our Agent Engine team, you'll bring AI expertise, sharp product intuition, and a tinkerer's mindset to advance the frontier of what agents can accomplish for our millions of devoted users. You'll work across engineering and applied research to solve many open problems in AI, including:\nDesigning frontier agent harnesses and systems to perform high-stakes, mission-critical work for our users;\n\nLeveraging action and decision models that determine, based on complex multimodal states, how to accomplish user-specified objectives;\n\nProviding consistently excellent experiences across local execution, headless cloud, custom executors, and other environments through sound system design and flexible abstractions;\n\nDeveloping permission architectures, payload classifiers, and other methods to implement secure-by-design agentic capabilities;\n\nDesigning optimal data representations and modes of interaction between agents and their environments;\n\nand much, much more.\n\nQualifications\nStrong foundational familiarity with the AI systems stack.\n\nProficiency in Python (bonus points for TypeScript, Go, and/or Rust).\n\nSignificant experience in at least one of the following areas:\nHarness engineering\n\nAgent Skills and plugin architectures\n\nModel training and reinforcement learning\n\nBrowser technologies (CDP, Playwright, extension development, etc.)\n\nStrong technical intuition and taste for user experience excellence.\n\nComfortable working with a small, fast-moving team; 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