{"id":1100027,"url":"https://alion.io/job/openrouter-software-engineer-trust-safety","title":"Software Engineer, Trust & Safety","company":{"id":12361,"name":"OpenRouter","domain":"openrouter.ai","url":"https://alion.io/company/openrouter-ai","size_band":"201-500","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"A","score":92,"open_postings":8,"ghost_share":0,"stale_share":0.125,"repost_share":0,"time_to_fill_p50_days":72,"computed_at":"2026-11-09T06:03:00Z"}},"role":"Backend","role_family":"Backend","seniority":"middle","employment_type":"full_time","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"posting_text","remote_working_hours":null,"hiring_geo_confidence":"structured","locations":[],"countries":[],"hiring_countries":["US"],"hiring_countries_total":1,"salary":{"min":215000,"max":285000,"currency":"USD","period":"year","gross":null,"usd_annual":285000},"salary_estimate":null,"experience_years_min":4,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"LLM","optional":false},{"name":"Next.js","optional":false},{"name":"OpenRouter","optional":false},{"name":"React.js","optional":false},{"name":"SQL","optional":false},{"name":"TypeScript","optional":false},{"name":"ClickHouse","optional":true},{"name":"Google BigQuery","optional":true},{"name":"JavaScript","optional":true},{"name":"Stripe","optional":true}],"status":"live","first_seen_at":"2026-09-21T21:14:46Z","employer_posted_date":"2026-09-21","last_verified_at":"2026-11-09T19:12:07Z","board_verified":true,"closed_at":null,"days_open":48,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":48},"description":"About OpenRouter\nOpenRouter is the leading AI routing and infrastructure layer that enterprises use to access, manage, and optimize the best large language models across providers-without lock-in, capacity constraints, or unnecessary cost. We power the most advanced AI teams in the world by giving them the flexibility to move fast, scale confidently, and stay future-proof as models evolve.\nAs enterprise adoption of AI accelerates, OpenRouter sits at the center of how organizations operationalize LLMs across research, product, and production workloads.\nAbout the Role\nWe’re hiring a Software Engineer on our Trust & Safety team to own the detection, enforcement, and review systems that keep abuse, fraud, malicious users and illegal content off the platform. Millions of LLM requests and a large volume of payments flow through OpenRouter every day, and maintaining the safety, integrity, and trust of our platform is a priority. You’ll build the systems that detect abuse and fraud, the heuristics for automated action and abuse mitigation, the tooling our reviewers act through, and the guardrails that keep us from acting on the wrong account.\nYou will be responsible for proactive abuse-prevention architecture for a new layer of the AI stack while the abuse patterns are still being invented. The threat model changes quickly, and the systems you build have to catch novel abuse without adding friction for the legitimate developers and enterprises who use our platform. Done well, this work protects millions of daily requests, our provider relationships, and the trust that enterprises place in OpenRouter.\nThis is a hands-on IC role with broad surface area spanning the inference path, the payments path, internal review tooling, and the data platform underneath all of it. There is little process between you and shipping, and your work has direct consequences for real users, so the bar for judgment is high.\nWhat You’ll Do\nBuild and operate technical systems across signup, payments, and usage to detect abuse and fraud early.\n\nOwn the technical enforcement pipeline end to end, from detection proposing a candidate to a human reviewing it to restrictions landing across our systems.\n\nBuild the internal tools that support investigation and enforcement decision-making. This involves building case queues, evidence summaries, bulk review and enactment, and alerting mechanisms to trigger investigations.\n\nShip technical solutions for content safety on the inference path: illegal content detection and reporting, the KYC systems or external intelligence sources to allow us to more efficiently and proactively detect and stop fraud and abuse.\n\nHelp make abuse uneconomical by building systems, tools, and heuristics for quick detection and scalable enforcement.\n\nHelp investigate incidents directly in the data and build the analytics plane so we can quickly establish what happened, size the pattern, and separate real abuse from a false-positive cluster.\n\nBuild defensible monitoring for risk, abuse spikes, and fraud, all while reducing false positives.\n\nSet the technical direction for how we prevent abuse as the platform grows and evolves, and define the patterns other engineers build against.\n\nWork with data scientists on feature exploration and training of risk and abuse ML models\n\nWhat We’re Looking For\n4+ years building and operating production systems, ideally including work in trust & safety, fraud, payments risk, security, or anti-abuse.\n\nProficient in React, TypeScript, Next.js, and JS runtimes.\n\nAbility to write SQL against large event datasets and reason about base rates, precision and recall, and the cost of a wrong decision.\n\nSound judgment when working with incomplete evidence.\n\nHigh agency and a bias toward action; spotting problems, iterating, and shipping without waiting for tickets.\n\nAI-forward in your workflow, using coding agents often, finding interesting ways to automate your work, and holding opinions about what works and what doesn't.\n\nComfortable in a small, fast-moving environment where boundaries between teams are intentionally fluid.\n\nDiscretion and resilience, since parts of this role may involve reviewing or discussing disturbing content and handling sensitive user data.\n\nStrong written and verbal communication, able to explain incident findings, detection rules, and systems to a range of audiences.\n\nMotivated by adversarial problems, where the counterparty adapts to whatever you ship and the work keeps evolving.\n\nNice to Haves\nExperience with payments fraud tooling (Stripe Radar, chargeback and dispute flows, crypto payment risk), or with identity and KYC systems.\n\nExperience with LLM-specific abuse: jailbreaks, prompt injection, key theft and resale, shared or scraped credentials, automated account farming.\n\nExperience operating large scale analytical datastores (e.g. ClickHouse, BigQuery) and observability platforms.\n\nFamiliarity with the reporting and compliance obligations that come with hosted AI, including illegal content reporting and model provider policy requirements.\n\nExisting user of OpenRouter, or active side projects in AI products/infrastructure or developer tooling.\n\nIf you don’t think you meet all of the criteria below but still are interested in the job, please apply. 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