{"id":915152,"url":"https://alion.io/job/thought-machine-senior-infrastructure-engineer-i","title":"Senior Software Engineer (Infrastructure)","company":{"id":7206,"name":"Thought Machine","domain":"thoughtmachine.net","url":"https://alion.io/company/thought-machine","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"A","score":89,"open_postings":8,"ghost_share":0,"stale_share":0.25,"repost_share":0,"time_to_fill_p50_days":76,"computed_at":"2026-11-05T05:54:30Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"hybrid","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":116000,"max_usd":234000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":61},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Docker","optional":false},{"name":"Go","optional":false},{"name":"Grafana","optional":false},{"name":"Kubernetes","optional":false},{"name":"OpenTelemetry","optional":false},{"name":"Prometheus","optional":false},{"name":"Python","optional":false},{"name":"Apache Kafka","optional":true},{"name":"AWS","optional":true},{"name":"Azure","optional":true},{"name":"DuckDB","optional":true},{"name":"GCP","optional":true},{"name":"PostgreSQL","optional":true}],"status":"live","first_seen_at":"2026-09-14T15:01:48Z","employer_posted_date":"2026-10-30","last_verified_at":"2026-11-05T13:41:31Z","board_verified":true,"closed_at":null,"days_open":52,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":52},"description":"Thought Machine's mission is bold - to properly and permanently rid the world's banks of legacy technology. To achieve this, we have developed the foundations of modern banking through core and payments technology which run natively in the cloud. What we are attempting is hard and means we need great people working together to build great technology.\nWe have grown rapidly in the past few years - growing our team to more than 550 individuals across offices in London, New York, Singapore, Sydney and our newly established Engineering Hub in Lisbon. We have raised more than £500m in funding and our investors include Molten Ventures, Eurazeo, Intesa Sanpaolo, Temasek, Nyca Partners, JPMorgan Chase Strategic Investments, Standard Chartered Ventures, and more.\nWe have created a culture that enables our team to produce the best work in the industry while ensuring we have fun along the way. We're regularly cited as having a fantastic workplace culture and have been recognised by Sifted magazine as having one of the highest Glassdoor ratings for a UK fintech company and the industry's most generous employee share package. Named one of the world's most innovative fintechs by Global Finance Magazine, we were also recognised by the Financial Times as one of Europe's fastest-growing companies for two consecutive years-and a UK Best Employer for 2026.\nAt Thought Machine, our Senior Software Engineers specialised in Infrastructure play a crucial role in deploying and maintaining our cutting-edge software, developing tools and integrations with third-party infrastructure components used in our customers’ environments. Our team's mission is to abstract away multi-cloud complexity and reduce cognitive load for other developers. We treat our platform infrastructure which spans, orchestration, observability, and data. As a first-class product, enabling our internal teams and global clients to operate securely and reliably at massive scale.\nDuties\nScale the Core Platform: Evolve, scale, and optimise the cloud-agnostic platform infrastructure powering Vault globally.\n\nSimplify Orchestration: Build intuitive control planes and automation to further abstract away infrastructure complexity, significantly easing the cognitive load for Thought Machine engineers and bank SREs.\n\nDesign for Resiliency: Engineer robust, fault-tolerant architectures and Disaster Recovery / Business Continuity Planning (DR/BCP) systems.\n\nAdvance Observability: Enhance our comprehensive observability suites that are shared across the entire Thought Machine product ecosystem, providing clients with deep, out-of-the-box monitoring and insights\n\nOptimise Data & Streaming: Scale and optimise core databases and event-streaming platforms to achieve maximum performance and scalability at the lowest cost\n\nEssential\nDegree in Computer Science, Engineering, or a similar technical field.\n\n5+ years of hands-on software engineering experience building and scaling infrastructure platforms (not just maintaining them).\n\nStrong proficiency in building production-ready platform tooling using Python or Golang.\n\nDeep understanding of container and orchestration internals (e.g., Kubernetes, Docker).\n\nHands-on experience extending and integrating open-source tools like Prometheus, OpenTelemetry, and Grafana.\n\nProven ability to package and scale developer-facing infrastructure utilities with a focus on improving system reliability.\n\nDesirable\nExperience building cloud-agnostic solutions running across AWS, Azure, and GCP.\n\nTechnical depth in databases or event-streaming platforms (e.g., Kafka, Postgres, DuckDB).\n\nA deep interest in the internals of infrastructure tools, with a track record of troubleshooting, extending, or optimizing them within a professional environment.\n\nBenefits\nHighly competitive salary and commission\n\nPension plan (match up to 5%)\n\nLife insurance (3x annual salary)\n\nCompetitive maternity (six months fully paid) and paternity leave (four weeks fully paid)\n\nShared parental leave (matched to our maternity leave for the same point in time)\n\n25 days holiday and bank holidays\n\nFlexible working hours\n\nCycle-to-work scheme\n\nElectric car scheme\n\nSeason ticket loan\n\nAccess to outstanding learning materials and courses\n\nSports and hobby clubs, subsidised by Thought Machine\n\nAll the latest tech you need\n\nStart the day properly with fresh fruit and cereals\n\nHuge range of healthy (and not-so-healthy) snacks, smoothies and drinks\n\nA talented and experienced team as your colleagues\n\nAn environment where we encourage learning and progress\n\nTwo charity days a year\n\nWeekly food pop-up\n\nWe actively hire candidates who demonstrate technical excellence in their field and welcome people of all ages and backgrounds, providing everyone with equal access to professional development. You are encouraged to apply even if your experience doesn't accurately match the job description. 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