{"id":12705,"url":"https://alion.io/job/obsidian-security-ai-security-engineer","title":"Software Engineer - AI Security Product","company":{"id":4018,"name":"Obsidian Security","domain":"obsidiansecurity.com","url":"https://alion.io/company/obsidian-security","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"A","score":86,"open_postings":11,"ghost_share":0,"stale_share":0.364,"repost_share":0,"time_to_fill_p50_days":69,"computed_at":"2026-10-10T05:45:15Z"}},"role":"Backend","role_family":"Backend","seniority":"junior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Palo Alto, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":126000,"max_usd":253000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":850},"experience_years_min":1,"visa_sponsorship":false,"relocation_package":false,"has_equity":true,"technologies":[{"name":"AI Agents","optional":false},{"name":"AWS","optional":false},{"name":"BigQuery","optional":false},{"name":"ChatGPT","optional":false},{"name":"CI/CD","optional":false},{"name":"Claude","optional":false},{"name":"ClickHouse","optional":false},{"name":"Copilot","optional":false},{"name":"Databricks","optional":false},{"name":"dbt","optional":false},{"name":"Function Calling","optional":false},{"name":"GCP","optional":false},{"name":"Gemini","optional":false},{"name":"Go","optional":false},{"name":"Google BigQuery","optional":false},{"name":"Least Privilege","optional":false},{"name":"LLM","optional":false},{"name":"Model Context Protocol","optional":false},{"name":"Obsidian","optional":false},{"name":"Python","optional":false},{"name":"RAG","optional":false},{"name":"SentinelOne","optional":false},{"name":"Snowflake","optional":false},{"name":"Google Workspace","optional":true},{"name":"Okta","optional":true},{"name":"OWASP","optional":true},{"name":"Tool Use","optional":true}],"status":"live","first_seen_at":"2026-07-03T06:01:38Z","employer_posted_date":"2026-09-21","last_verified_at":"2026-10-12T06:25:26Z","board_verified":true,"closed_at":null,"days_open":101,"trust":{"level":"ok","repost_count":0,"flags":[],"days_open":100},"description":"Obsidian Security is a global leader in cyber security protecting the SaaS and non-human identity layer modern enterprises run on - from Salesforce and Snowflake to the AI agents now deployed inside them. The Obsidian Security platform gives unified visibility into every human and machine identity, app, and integration across their SaaS estate, detects identity-based and supply chain attacks in real time, and enforces least-privilege access before it's exploited. Trusted by major Fortune 500 companies T-Mobile, Workday, Snowflake, and S&P Global, Obsidian ranked No. 95 on the 2025 Deloitte Technology Fast 500™, growing nearly 1000% from 2021-2024 - helping CISOs turn an unmonitored attack surface into one they can govern with confidence. Obsidian has also been recognized by Forbes as America's Best Startup Employers in 2026.\nIn August 2026, Obsidian raised $85 million in Series D financing led by Crescent Cove Advisors, with participation from existing investors including Greylock Partners, Menlo Ventures, Norwest Venture Partners, IVP, Wing Ventures, and GV - pushing Obsidian's valuation to $1.1 billion, crossing into unicorn status. Obsidian is using the funding to deepen its R&D in agentic AI security and extend its platform as the standard for governing what AI agents can access and do inside third-party applications.\nWith global momentum, a growing partner ecosystem including SentinelOne, Databricks, and Google Cloud, and fresh capital from its Series D behind it, Obsidian is scaling rapidly toward long-term growth and IPO readiness.\nAbout the Role\nAI is the fastest-moving attack surface in the enterprise. Copilot, ChatGPT Enterprise, Gemini, Claude, and a wave of agentic tools are being wired into corporate SaaS faster than security teams can keep up - with broad OAuth scopes, opaque data flows, and non-human identities acting on behalf of employees. Obsidian sits directly in the path of this shift.\nAs a software engineer working on AI Security, you'll define how Obsidian understands, identifies, and mitigates risk in AI and agentic platforms. You'll own the threat models and data modeling that protect customers - and you'll work in the data yourself, because in this space, the security judgment and the query are inseparable.\nWhat You'll Do\nDevelop deep expertise in how AI platforms (ChatGPT Enterprise, Copilot, Gemini, Claude, Glean, agentic frameworks) authenticate, what scopes they request, and where risk concentrates.\nResearch emerging AI attack techniques - prompt injection, tool/agent misuse, RAG poisoning, over-permissioned integrations\nPrototype and ship highly available AI Agent security products.\nBuild and improve data pipelines for high efficiency, development velocity and low cost.\nRequirements\n1-3 years of software engineering experience shipping and owning production backend systems, with proficiency in a modern language (Python, Go, or similar).\nExperience with - AWS/GCP, containers, CI/CD, observability, and production ownership.\nHands-on experience with LLM APIs and agentic patterns (tool/function calling, MCP, agent frameworks), or a demonstrated ability to ramp up fast.\nHands-on experience with a modern data stack (dbt, and a columnar warehouse or query engine such as ClickHouse, Snowflake, BigQuery, or Databricks).\nClear communicator across engineers, PMs, and customer security teams.\nComfortable operating with ambiguity in a fast-moving problem space.\nNice to Have\nStrong grasp of how SaaS platforms (Google Workspace, Microsoft 365, Salesforce, Okta) expose data - APIs, event schemas, permissions, auth flows.\nDeep knowledge of AI and SaaS security - OWASP LLM Top 10, MITRE ATLAS, prompt injection, agent/tool-use risks, OAuth abuse, and identity models across major AI and SaaS platforms.\nExperience in building a cybersecurity product.\nStrong grasp of identity and access control concepts - OAuth flows, scopes, tokens, and non-human identities.\nEmployee Benefits\nOur competitive benefits packages are designed to support our employees' well-being, both at work and at home. Our US based employees enjoy:\nCompetitive compensation with equity and 401k\nComprehensive healthcare with dental and vision coverage\nFlexible paid time off and paid holiday time off \n12 weeks of new parent or family leave\nPersonal and professional development resources\nFor more details on our US benefits, or for information on our international benefits, please see here.\nPay Transparancy\nPlease note that the base pay range is a guideline and for candidates who receive an offer, the base pay will vary based on factors such as work location, as well as the knowledge, skills and experience of the candidate. In addition to a competitive base salary, this position is eligible for equity awards and may be eligible for sales commission or incentive compensation based on the role or function within the company.\nAt Obsidian, we are proud to be an equal-opportunity employer. We value diversity and hire for talent, passion, and compassion. In compliance with federal law, all persons hired will be required to submit satisfactory proof of identity and legal authorization. If you have a need that requires accommodation, please contact \nInformation collected and processed as part of any job applications you choose to submit is subject to Obsidian’s Applicant Privacy Policy.\nBase Salary Range\n$155,000—$180,000 USD\nEmployee Benefits:\nOur competitive benefits packages are designed to support our employees' well-being, both at work and at home. Our US based employees enjoy:\nCompetitive compensation with equity and 401k\nComprehensive healthcare with dental and vision coverage\nFlexible paid time off and paid holiday time off \n12 weeks of new parent or family leave\nPersonal and professional development resources\nFor more details on our US benefits, or for information on our international benefits, please see here.","description_format":"text","description_chars":5927,"description_truncated":false,"requirements":{"experience_years_min":1,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["401k plan","Equity","Parental leave","Professional development"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Artificial Intelligence","Cloud Security"],"lifecycle":[{"event":"open","at":"2026-07-03T06:01:38Z"}],"visa":[{"country":"US","licensed_sponsor":true,"evidence":"H-1B filings in 12 months: 4","filings_12m":4,"filings_prev_12m":5,"green_card_filings_12m":0,"median_offered_wage_usd":120000,"route":null,"cap_exempt":false,"checked_at":"2026-10-03T21:08:04+00:00","sources":["US Department of Labor: LCA disclosure data (H-1B, H-1B1, E-3)"],"filings_for_role_12m":1}],"liveness":{"score":26,"band":"fade","label":"Fading","p_open":1,"p_active":0.594,"p_room":0.44,"age_days":98,"expected_fill_days":69,"reasons":["conf:0","velocity","win:tail","crowd:junior"],"computed_at":"2026-10-10T05:45:15Z"},"pay":null,"html_url":"https://alion.io/job/obsidian-security-ai-security-engineer","json_url":"https://alion.io/job/obsidian-security-ai-security-engineer.json","meta":{"generated_at":"2026-10-12T06:43:18Z","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":10751,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-13T00:00:00Z"}},"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":4018},"rest":"https://alion.io/mcp/rest/get_company?id=4018"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fobsidian-security-ai-security-engineer"},{"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%2Fobsidian-security-ai-security-engineer"},{"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%2Fobsidian-security-ai-security-engineer"},{"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/obsidian-security-ai-security-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fobsidian-security-ai-security-engineer"}]}