{"id":140282,"url":"https://alion.io/job/unitary-staff-senior-software-engineer-2","title":"Staff / Senior Software Engineer","company":{"id":8601,"name":"Unitary","domain":"unitary.com","url":"https://alion.io/company/unitary","size_band":"11-50","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workable","truth_index":{"grade":"B","score":75,"open_postings":4,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-10-17T05:46:00Z"}},"role":"Backend","role_family":"Backend","seniority":"staff","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"explicit","locations":["London, United Kingdom"],"countries":["GB"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":153000,"max_usd":263000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":24},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":true,"technologies":[{"name":"AI Agents","optional":false},{"name":"AWS","optional":false},{"name":"Claude Code","optional":false},{"name":"Kubernetes","optional":false},{"name":"Machine Learning","optional":false},{"name":"OpenAI Codex","optional":false},{"name":"Platform Engineering","optional":false},{"name":"Python","optional":false}],"status":"live","first_seen_at":"2026-08-03T00:00:00Z","employer_posted_date":"2026-08-03","last_verified_at":"2026-10-18T03:44:42Z","board_verified":true,"closed_at":null,"days_open":76,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":76},"description":"We’re a fast growing AI startup on a mission to help midmarket businesses transform how work gets done.\nWe’ve built a factory for custom operations agents. The factory builds Virtual Agents: software workers with AI reasoning that complete complex workflows end-to-end, directly in customer tools. There’s no tech integration, process change or upfront cost. Onboarding is white-glove, takes a matter of days, and customers pay only for delivered value.\nThis makes Virtual Agents the lowest risk way to automate complex manual work. And it makes Unitary the first company delivering Fortune 500-grade AI deployment with the unit economics of software - enabling us to reach the midmarket at scale.\nToday we’re focused on commercial insurance, marketplaces and primary healthcare. But the potential for Virtual Agents goes far beyond.\nWe closed $15M Series A funding in 2024, and we’re backed by some leading names in AI (Plural and Creandum). We’re working with world-class clients such as Substack, Trustpilot, Depop, Sony Interactive Entertainment, and many more.\nThis is an exciting opportunity to join a well-funded startup at a crucial stage of growth, and to play a significant part in turning frontier AI technology into real world value.\nThe role\nAs a Senior Software Engineer you will:\nBring new products to market\nWe’ve been able to grow our revenues aggressively by combining a service and product offering to our customers. We now want to productise this offering as much as we can. We will need to bring new products to market, you will be at the forefront of this.\nRe-imagine and refactor our existing services and tooling into a new generation of capabilities\nOur current toolset has helped us grow from 0 to 25 clients in the past 18 months. We are now finding that these services and tools will not scale far beyond this point in their current form. We need them to be re-imagined, in light of our learnings from our pathfinder clients, into robust capabilities that can match the growth of our business.\nBridge our Machine Learning, Product and Platform Engineering capabilities\nWe have an extremely talented pool of full-stack machine learning and MLOps engineers and an exceptional platform engineering team. We need software ‘glue’ expertise and capability to bring these two things together optimally. With our other software engineers, you will be this glue.\nThe role will report to a Staff Engineer and can be based in the UK or alternatively anywhere within 3 hours of the UK timezone.\nAs part of this role, you will:\nWork closely with our operations engineering lead and customer success team to establish priorities across multiple customers and ensure operational excellence.\nTriage and resolve technical issues raised by customers and internal teams.\nLead or contribute to post-mortems when contractual service level agreement breaches occur, identifying root causes and driving preventive improvements.\nOperate the AI decision engine to make targeted improvements to automation accuracy.\nUpdate customer workflows when requirements change, working with the customer success team to assess scope and confirm delivery timelines with the customer.\nContribute to internal tooling and automation that will drive efficiency during the day-to-day service operations.\nWrite and maintain runbooks and documentation that enable our internal agent operations teams to become more self-sufficient over time.\nParticipate in our 24/7 on-call rotation.\nRequirements\nYou\nWe are looking for someone who is excited about building innovative solutions and wants to have a large impact in a smaller company; you will be a key part of defining Unitary’s future during this early stage of our next growth journey. We need versatile people who are happy to get stuck into whatever needs doing, and are ready to learn and grow with the company.\nFor this particular role, we need a product-focused software engineer with deep technical expertise who takes ownership of problems from start to finish. You will be comfortable working across the stack and across disciplines, equally at home shaping a brand-new product and untangling and rebuilding existing systems. Communication is crucial, as you will work closely with colleagues across machine learning, product, and platform engineering to bring their work together into capabilities the whole team can build on.\nWe would love to hear from you if you:\nHave expert Python development experience and write production-grade code\nHave experience bringing products to market - ideally taking a product from 0 to 1, or productising a service offering\nHave experience re-imagining and refactoring systems and tooling so they scale reliably as a business grows\nUse AI coding agents as a core part of how you work, with hands-on experience of agentic tools (e.g. Claude Code, Codex)\nAre an advocate of strong software engineering practices, standards, and culture\nAre still building hands-on and want to keep doing so for at least the next 12 months\nIt would be even better, but not essential, if you have:\nPrevious experience working in a startup or small team\nAre confident using AWS and Kubernetes\nExperience with workflow orchestration systems (e.g. Temporal)\nCan venture into Data Engineering, MLOps and/or Platform Engineering\nBenefits\nAbout us\nUnitary is a remote-first team of 25+ people spread across Europe who are fiercely passionate about making the internet a better place, and deeply motivated to become a force for good. We have an ambition to create a company filled with happy, kind and collaborative people who achieve extraordinary things together. Our culture is built around the power of trust, transparency and self-leadership.\nWorking at Unitary\nWe are committed to creating a positive and inclusive culture built on genuine interest for each other's well-being. We offer progressive and market-leading benefits, including:\nFlexible hours and hybrid working, 1-2 days in the office per week\nCompetitive salary and equity package\nOccupational pension\nGenerous paid parental leave\nGenerous paid sick leave\nAnnual budget for your professional development and growth\nAnnual budget for your individual health and wellness\nThree team offsites to London or other exciting destinations in Europe","description_format":"text","description_chars":6260,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":["Equity","Hybrid work","Parental leave","Professional development"],"hiring_locations":[{"name":"United Kingdom","iso":"GB","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Financial Software & Embedded Finance"],"lifecycle":[{"event":"open","at":"2026-08-03T00:00:00Z"}],"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":"2026-10-17T06:21:15+00:00","sources":["UK Home Office: register of licensed sponsors (workers)"],"filings_for_role_12m":0}],"liveness":{"score":9,"band":"cold","label":"Long shot","p_open":1,"p_active":0.333,"p_room":0.28,"age_days":75,"expected_fill_days":30,"reasons":["conf:5","win:tail","crowd:"],"computed_at":"2026-10-17T05:46:00Z"},"pay":null,"html_url":"https://alion.io/job/unitary-staff-senior-software-engineer-2","json_url":"https://alion.io/job/unitary-staff-senior-software-engineer-2.json","meta":{"generated_at":"2026-10-18T04:13:04Z","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":6375,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-19T00:00:00Z"}},"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":8601},"rest":"https://alion.io/mcp/rest/get_company?id=8601"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Funitary-staff-senior-software-engineer-2"},{"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%2Funitary-staff-senior-software-engineer-2"},{"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%2Funitary-staff-senior-software-engineer-2"},{"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/unitary-staff-senior-software-engineer-2\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Funitary-staff-senior-software-engineer-2"}]}