{"id":1751031,"url":"https://alion.io/job/synthesized-senior-aiagentic-engineer","title":"Senior AI/Agentic Engineer","company":{"id":63481,"name":"Synthesized","domain":"synthesized.io","url":"https://alion.io/company/synthesized","size_band":"11-50","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Teamtailor","truth_index":{"grade":"B","score":75,"open_postings":3,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-10-06T05:45:30Z"}},"role":"AI/ML","role_family":"AI/ML","seniority":"senior","employment_type":"full_time","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"inferred_payroll_markers","remote_working_hours":null,"hiring_geo_confidence":"inferred","locations":["London, United Kingdom"],"countries":["GB"],"hiring_countries":["GB"],"hiring_countries_total":1,"salary":null,"salary_estimate":{"min_usd":100000,"max_usd":196000,"period":"year","method":"role_seniority_country_cell","sample_n":38},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AI Agents","optional":false},{"name":"Anthropic SDK","optional":false},{"name":"Docker","optional":false},{"name":"LangChain","optional":false},{"name":"LangSmith","optional":false},{"name":"Notion","optional":false},{"name":"Pydantic","optional":false},{"name":"Python","optional":false}],"status":"live","first_seen_at":"2026-05-18T13:38:53Z","employer_posted_date":"2026-05-18","last_verified_at":"2026-10-06T23:18:40Z","board_verified":true,"closed_at":null,"days_open":141,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":140},"description":"About Us\nIt's hard to build a reliable system. It's harder to make sure that what you've built is really reliable.\nSynthesized is redefining software testing. Our platform automates test data, test cases, and test environments - empowering enterprise teams to ship faster, reduce compliance risks, and modernise QA at scale.\nWe’re an ambitious VC-backed startup, having recently gone through Series A with leading global investors including redalpine, IQ Capital, Seedcamp, and Deutsche Bank. We have ambitious growth plans, and we are so keen for you to join us on the journey.\nThe Role\nWe are hiring an AI Engineer to help form the strategic direction of our agentic offering - turning vision into shipped, scalable systems.\nThis is a hands-on, builder-first role on our small applied-AI team. You'll work with our Product team to identify opportunities, scope them, and ship production-grade agentic capabilities integrated across our wider platform.\nStack & How We Work\nPython, LangChain, Anthropic SDK, Pydantic, Docker\n\nSpec-driven: product and tech specs live in Notion before code does\n\nBenchmark-driven: every change scored against a golden-set rubric. Agents that demo well but regress under load don't ship\n\nLangSmith for trace-driven debugging and agent observability\n\nWhat You’ll Be Doing\nDrive product direction for our agentic offering, in close collaboration with our Product team\n\nIdentify opportunities, scope them, and ship\n\nWe're looking for engineers who think like product builders, comfortable shaping the \"what\" as well as the \"how\"\n\nOwn the design, architecture, and implementation of agentic offerings, including:\nEnd-to-end solution delivery\n\nIntegrations with wider ecosystems (partners/customers/platforms)\n\nDrive prototypes through to production code, deployed alongside other Synthesized product offerings\n\nSupport partner/customer technical integration discussions where needed\n\nRaise the bar for agentic systems engineering through the code you ship and the patterns you share with the team\n\nAbout You\nProven experience in design, architecture, and implementation of agentic offerings, including complete solutions and ecosystem integrations\n\nBuilt and shipped agents in production - tool/prompt design, framework tradeoffs, eval loops that catch regressions\n\nNice to have: experience in test data management, test automation, or QA tooling\n\nBroader awareness of Software Quality Engineering is a supporting advantage\n\nComfortable operating in ambiguity\n\nDemonstrated ownership and high velocity\n\nWhat We Offer\nCompetitive salary & meaningful equity - so you share in our success\n\n25 days annual leave + celebration days + your birthday off\n\nWork From Anywhere - up to 1 month per year, fully flexible\n\nHybrid working - a mix of home and our London offices\n\nLearning & development budget - for coaching, courses, and conferences\n\nPrivate medical, dental & vision cover\n\nRegular team socials & offsites - connect, celebrate, and recharge\n\nA collaborative team - smart, ambitious, and supportive\n\nGenerous family leave - because life outside of work matters too\n\nEqual Opportunities\nWe are committed to an inclusive and diverse workplace at Synthesized. Synthesized is an equal opportunity employer. We do not discriminate based on race, ethnicity, colour, ancestry, national origin, religion, sex, sexual orientation, gender identity, age, disability, veteran status, genetic information, marital status or any other legally protected status.","description_format":"text","description_chars":3474,"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":["Annual leave","Equity","Hybrid work","Parental leave"],"hiring_locations":[{"name":"United Kingdom","iso":"GB","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Synthetic Data"],"lifecycle":[{"event":"open","at":"2026-10-03T08:55:16Z"}],"visa":[{"country":"GB","licensed_sponsor":true,"evidence":"Licensed UK visa sponsor (Skilled Worker)","filings_12m":null,"filings_prev_12m":null,"green_card_filings_12m":null,"median_offered_wage_usd":null,"route":"Skilled Worker","cap_exempt":false,"checked_at":"2026-10-06T06:21:00+00:00","sources":["UK Home Office: register of licensed sponsors (workers)"],"filings_for_role_12m":0}],"liveness":{"score":4,"band":"cold","label":"Long shot","p_open":1,"p_active":0.14,"p_room":0.28,"age_days":140,"expected_fill_days":7,"reasons":["conf:1","win:tail","crowd:"],"computed_at":"2026-10-06T05:45:30Z"},"pay":null,"html_url":"https://alion.io/job/synthesized-senior-aiagentic-engineer","json_url":"https://alion.io/job/synthesized-senior-aiagentic-engineer.json","meta":{"generated_at":"2026-10-07T01:13:39Z","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","counted_by":"address","units_charged":1,"used_today":2035,"day_limit":5000,"remaining_today":2965,"minute_limit":60,"resets_at":"2026-10-08T00:00:00Z"}},"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":63481},"rest":"https://alion.io/mcp/rest/get_company?id=63481"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fsynthesized-senior-aiagentic-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%2Fsynthesized-senior-aiagentic-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%2Fsynthesized-senior-aiagentic-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/synthesized-senior-aiagentic-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fsynthesized-senior-aiagentic-engineer"}]}