{"id":121263,"url":"https://alion.io/job/9fin-senior-platform-engineer","title":"Senior Platform Engineer","company":{"id":4757,"name":"9fin","domain":"9fin.com","url":"https://alion.io/company/9fin","size_band":"201-500","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"B","score":79,"open_postings":6,"ghost_share":0,"stale_share":0.833,"repost_share":0,"time_to_fill_p50_days":44,"computed_at":"2026-10-16T05:45:00Z"}},"role":"DevOps","role_family":"DevOps","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":["London, United Kingdom"],"countries":["GB"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":91000,"max_usd":175000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":54},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Amazon CloudWatch","optional":false},{"name":"Amazon EC2","optional":false},{"name":"Amazon ECS","optional":false},{"name":"Amazon S3","optional":false},{"name":"AWS","optional":false},{"name":"AWS Lambda","optional":false},{"name":"CI/CD","optional":false},{"name":"IAM","optional":false},{"name":"OpenTelemetry","optional":false},{"name":"SigNoz","optional":false},{"name":"SLI/SLO/SLA","optional":false},{"name":"Agile","optional":true},{"name":"Docker","optional":true},{"name":"Git","optional":true},{"name":"Go","optional":true},{"name":"Incident Management","optional":true},{"name":"Linux","optional":true},{"name":"PagerDuty","optional":true},{"name":"Platform Engineering","optional":true},{"name":"Python","optional":true},{"name":"Terraform","optional":true}],"status":"live","first_seen_at":"2026-08-24T15:28:58Z","employer_posted_date":"2026-08-24","last_verified_at":"2026-10-16T18:26:20Z","board_verified":true,"closed_at":null,"days_open":53,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":53},"description":"About 9fin\n9fin is the AI platform powering global debt markets - the world’s largest asset class at over $145 trillion.\nDebt markets are vast, global, and mission-critical, yet still run on fragmented data, PDFs, and manual workflows. 9fin replaces this broken infrastructure with a single platform that centralises proprietary credit data, deep analysis, and high-value workflows across global markets.\nToday, 9fin powers teams at 300+ blue-chip institutions worldwide, including global banks, asset managers, private equity firms, law firms, and advisors. The business is scaling at exceptional speed, with rapid expansion in the US and best-in-class retention driven by deep workflow adoption.\nWe’re at a defining inflection point. With proven product-market fit and strong, global market pull, 9fin is accelerating toward becoming the category-defining platform for debt markets worldwide.\nThe opportunity\nWe are looking for a highly-motivated and driven platform engineer, with experience in enabling a DevOps culture within tech teams. In this role, your primary responsibility will be to provide a world-class developer experience to other engineers. You will have the autonomy to build solutions for the fascinating problems that we have to solve, allowing our customers (the software engineers) to build products quickly, securely, and to a high standard of quality.\nWhat you'll do\nEvery day is different, but here’s an example of the kind of things you’ll work on:\nDesigning and implementing high quality infrastructure as code templates/modules, and empowering software engineers to use them for their projects.\n\nImplementing AWS multi-account core infrastructure, and ensuring security best practices are being used across the cloud estate.\n\nAuthoring CI/CD templates and optimisations to ensure that engineers can release as early and often as possible.\n\nDesigning and implementing a developer portal, to provide a service catalog to the engineering team, and also author many other useful DevOps plugins.\n\nContributing to observability best practices and providing key SLI/SLO metric reporting, so that the engineering team can balance velocity and reliability.\n\nDevelop inner/open source projects to help provide a world-class developer experience to the engineering team.\n\nAbout You\nThis role will be a great fit if you have:\nGood working knowledge of AWS services including ECS, EC2, Lambda, VPC, IAM, Route53, CloudFront, S3, RDS\n\nGood understanding of monitoring and logging solutions. We use OpenTelemetry, AWS Cloudwatch and SigNoz so experience with them is a bonus.\n\nBasic SRE knowledge, and experience in alerting and incident management platforms (eg. incident.io, Pagerduty)\n\nProven ability to provide and support strong and scalable CI/CD pipelines\n\nLinux, Git, Docker and good scripting skills in e.g. Python, bash, Go. You should be proficient in at least one modern programming language.\n\nGood experience in defining Infrastructure as Code using Terraform.\n\nKnowledgeable and comfortable with Agile development practices\n\nGreat appetite for learning and self-improvement\n\nA real passion for developer experience, as well as an understanding and enthusiasm for Platform Engineering as a discipline\n\nPrevious experience in fintech is a bonus\n\nBenefits\nWe’re a scaling start up, and we enjoy sharing our success, when the company succeeds, we always reinvest that in our people. We also offer huge amounts of responsibility, an abundance of opportunity for growth and a platform to truly excel.\nFinancial & Insurance\nCompetitive Salary (our salary bands are benchmarked at the top end of the market)\n\nEquity\n\nPension (your minimum contributions are 4% with 9fin matching up to 7%)\n\nPrivate Medical Insurance\n\nPaid sick leave with Income Protection for long periods of illness\n\nGroup Life Assurance\n\nSeason Ticket Loan & Cycle to Work schemes\n\nTime off\n25 holiday days per year\n\nLocal public holidays (with the ability to exchange them for alternative days)\n\nWork abroad for up to 3 months a year\n\n1 month paid sabbatical after 5 years of service\n\nEnhanced parental leave & flexible working arrangements available\n\nTraining & Culture\nProfessional learning and development budget\n\nQuarterly team socials\n\nSummer and Winter company social events\n\nLocation\n9fin is a hybrid company, and the office is a regular part of how we work. From January 2027, all employees will work from their designated 9fin office on Tuesdays and Wednesdays. Some teams may be asked to be in the office more often, where the nature of their work calls for it. For the rest of the week, you may work from wherever works best for you and your team\n9fin is an equal opportunities employer\nDon’t meet every single requirement? At 9fin we are dedicated to building and promoting a fair and inclusive workplace where everyone can flourish, reach their full potential and truly belong. We recognise diverse teams allow a more creative and productive environment. So, if you’re excited about this role but your experience doesn’t perfectly align with the job description, we encourage you to apply anyway. You might just be who we’re looking for - for this role, or perhaps another.\n9fin is an equal opportunities employer\nAt 9fin we are dedicated to building and promoting a fair and inclusive workplace where everyone can reach their full potential and truly belong. We recognize that building diverse teams enables a more creative and productive environment. If you’re excited about this role but your experience doesn’t perfectly align with the job description, we encourage you to apply anyway. You might just be who we’re looking for - either for this role, or perhaps another.","description_format":"text","description_chars":5677,"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","Flexible schedule","Health insurance","Parental leave"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Financial AI","Financial Data & Market Intelligence"],"lifecycle":[{"event":"open","at":"2026-08-24T15:28:58Z"}],"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":"2026-10-16T06:21:30+00:00","sources":["UK Home Office: register of licensed sponsors (workers)"],"filings_for_role_12m":0}],"liveness":{"score":40,"band":"fade","label":"Fading","p_open":1,"p_active":0.723,"p_room":0.55,"age_days":52,"expected_fill_days":44,"reasons":["conf:1","win:tail"],"computed_at":"2026-10-16T05:45:00Z"},"pay":null,"html_url":"https://alion.io/job/9fin-senior-platform-engineer","json_url":"https://alion.io/job/9fin-senior-platform-engineer.json","meta":{"generated_at":"2026-10-16T19:06:04Z","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":4568,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-17T00:00:00Z"}},"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":4757},"rest":"https://alion.io/mcp/rest/get_company?id=4757"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2F9fin-senior-platform-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%2F9fin-senior-platform-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%2F9fin-senior-platform-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/9fin-senior-platform-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2F9fin-senior-platform-engineer"}]}