{"id":3133655,"url":"https://alion.io/job/onyx-senior-software-engineer","title":"Senior Software Engineer","company":{"id":1913430,"name":"Onyx","domain":"onyx.security","url":"https://alion.io/company/onyx-security","size_band":"11-50","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Comeet","truth_index":null},"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":["Tel Aviv, Israel"],"countries":["IL"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AI Agents","optional":false},{"name":"LLM","optional":false}],"status":"live","first_seen_at":"2026-10-21T19:29:47Z","employer_posted_date":"2026-10-21","last_verified_at":"2026-10-25T14:27:42Z","board_verified":true,"closed_at":null,"days_open":3,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":3},"description":"Description\nJoin Onyx Security and help build the control plane for autonomous AI in a fast-moving, high-impact environment. Onyx is building the control layer that enables enterprises to safely adopt and scale AI agents across the organization, with the visibility, governance, and operational control needed to understand what agents exist, what they do, how they behave, and what risks they introduce.\n\nAbout the role\nOnyx is looking for a Senior Software Engineer to help build the core of our AI security platform and AI Control Plane.\nYou will build systems that help enterprises understand, monitor, and control how AI agents and LLM-based applications operate across their organization. We expect engineers to work in an AI-native way: leveraging and orchestrating AI agents to accelerate design, implementation, testing, debugging, and iteration, while owning the quality of the final result.\nThis role requires strong ownership, system design judgment, and the ability to turn complex AI-security problems into reliable production systems.\n\nWhat you will do\nLeverage and orchestrate AI agents and LLMs to design, build, test, debug, and ship core platform capabilities.\nBuild systems for monitoring, governing, and controlling AI agents, LLM applications, tool usage, prompts, context, policies, and runtime behavior.\nTurn ambiguous AI-security problems into simple, scalable, production-grade systems.\nOwn technical decisions from design through production, working closely with Product, Security, and Engineering.\nRequirements\nWhat you will bring\n5+ years of backend software engineering experience in production environments.\nStrong system design skills and backend fundamentals: APIs, data modeling, scalability, performance, and reliability.\nProven ability to own complex systems end to end, operate independently, and create clarity in ambiguous situations.\nStrong interest in AI, LLMs, agents, and the security challenges around their adoption.\nClear communication and strong cross-functional collaboration skills.\nNice to Have\nExperience building production systems with LLMs, AI agents, or agent orchestration.\nExperience in cybersecurity, cloud security, or enterprise security products.","description_format":"text","description_chars":2207,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Cybersecurity AI","AI Governance & Compliance"],"lifecycle":[{"event":"open","at":"2026-10-23T04:52:53Z"}],"visa":[],"liveness":{"score":90,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.903,"p_room":1,"age_days":3,"expected_fill_days":30,"reasons":["conf:3","velocity","win:early"],"computed_at":"2026-10-25T05:49:26Z"},"pay":null,"html_url":"https://alion.io/job/onyx-senior-software-engineer","json_url":"https://alion.io/job/onyx-senior-software-engineer.json","meta":{"generated_at":"2026-10-25T14:53:40Z","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":21465,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-26T00:00:00Z"}},"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":1913430},"rest":"https://alion.io/mcp/rest/get_company?id=1913430"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fonyx-senior-software-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%2Fonyx-senior-software-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%2Fonyx-senior-software-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/onyx-senior-software-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fonyx-senior-software-engineer"}]}