{"id":3339536,"url":"https://alion.io/job/refractal-software-engineer","title":"Software Engineer","company":{"id":4403779,"name":"Refractal","domain":"refractal-ai.com","url":"https://alion.io/company/refractal","size_band":"501-1000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":null},"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":["London, United Kingdom"],"countries":["GB"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":60000,"max":115000,"currency":"GBP","period":"year","gross":null,"usd_annual":153603},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Splunk","optional":false},{"name":"SIEM","optional":true}],"status":"live","first_seen_at":"2026-10-08T13:30:47Z","employer_posted_date":"2026-10-08","last_verified_at":"2026-11-04T16:31:18Z","board_verified":true,"closed_at":null,"days_open":27,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":27},"description":"About Refractal\nRefractal is an AI security company building the infrastructure organisations need to defend against autonomous AI threats. 2026 has shown that generally capable intelligence is here. The challenge now is modernising security to stop AI-enabled threats, whether they come from internal agents going rogue or from attackers using AI to become more dangerous.\nRefractal was founded on cybersecurity and AI expertise from MIT, Microsoft, NASA and the U.S. Navy. Our product lets organisations detect AI-enabled threats at low cost without sacrificing detection quality. We take a practical approach to AI risk, combining proven cybersecurity methods with frontier AI security research.\nToday, we work with governments and organisations that can't afford to get security wrong. We're backed by leading deep-tech and cybersecurity investors and are growing the team to deliver on this mission.\nThe role\nYou'll connect Refractal to the security systems our customers already use, building the integrations and data pipelines that make their security data usable. You'll work closely with our security engineers and with customers to understand their environments and turn their requirements into reliable software.\nWhat you'll do\nBuild and maintain integrations with security and observability tools, including platforms such as Splunk.\n\nDevelop pipelines to ingest, validate and transform security data, accounting for inconsistent formats, incomplete records and changing source systems.\n\nDesign clear interfaces between integrations and the wider product, working with platform engineers to keep responsibilities well defined.\n\nMake integrations reliable in production through testing, monitoring, useful error messages and safe handling of credentials and sensitive data.\n\nInvestigate customer integration issues and turn recurring problems into product improvements, documentation and reusable implementation patterns.\n\nSuccess in your first six months\nYou've shipped and supported priority integrations that customers can use with clear setup guidance.\n\nThe data flows you own handle common failures predictably and make problems straightforward to diagnose.\n\nYou've established reusable patterns that make the next integration easier to build and maintain.\n\nAbout you: essential\nExperience building and maintaining software, with a clear approach to testing, debugging and code review.\n\nFamiliarity with data engineering concepts, including ingestion, transformation, data quality and pipeline reliability.\n\nExperience working with APIs and external systems, including authentication, pagination, rate limits and error handling.\n\nAbility to investigate unfamiliar systems and turn incomplete requirements into a practical implementation.\n\nClear communication and a willingness to own work through deployment and ongoing support.\n\nNice to have\nExperience integrating with Splunk or other SIEM and observability platforms.\n\nFamiliarity with security telemetry, event schemas or detection workflows.\n\nExperience with high-volume data processing or customer-facing integration projects.\n\nOur values\nRadical transparency. We believe the best work happens when everyone feels able to give and receive honest, constructive feedback.\nPublic service. We see AI security as a form of public service. Getting the AI transition right means putting the right infrastructure in place to manage the threats that come with it, and our work helps protect the institutions and services society depends on.\nFail fast. We test ideas early, seek feedback and learn quickly. We experiment rapidly and change course when something isn't working, without compromising on security.\nPragmatism, not dogmatism. We choose approaches based on how well they solve the problem. That means combining established cybersecurity methods with frontier AI research, questioning our assumptions, and changing our minds when the evidence changes.\nCompensation and benefits\nSalary: £60,000-£115,000\n\nCompetitive equity to share in Refractal's growth\n\nPension contribution\n\nPrivate medical and dental cover\n\nVisa and relocation support","description_format":"text","description_chars":4111,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Equity"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":true,"industries":["Artificial Intelligence","Cybersecurity","Information Security","Cybersecurity AI"],"lifecycle":[{"event":"open","at":"2026-10-27T15:00:00Z"}],"visa":[],"liveness":{"score":41,"band":"fade","label":"Fading","p_open":1,"p_active":0.741,"p_room":0.55,"age_days":26,"expected_fill_days":26,"reasons":["conf:4","velocity","win:tail"],"computed_at":"2026-11-04T06:34:25Z"},"pay":{"stated_usd_annual":153603,"is_top_pay":false},"html_url":"https://alion.io/job/refractal-software-engineer","json_url":"https://alion.io/job/refractal-software-engineer.json","meta":{"generated_at":"2026-11-04T17:31:45Z","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":26840,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-05T00:00:00Z"}},"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":4403779},"rest":"https://alion.io/mcp/rest/get_company?id=4403779"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Frefractal-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%2Frefractal-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%2Frefractal-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/refractal-software-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Frefractal-software-engineer"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3339536}},{"tool":"search_jobs","arguments":{"company":"refractal-ai.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3339536},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. 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