{"id":2692850,"url":"https://alion.io/job/semble-senior-platform-engineer","title":"Senior Platform Engineer","company":{"id":172425,"name":"Semble","domain":"semble.io","url":"https://alion.io/company/semble","size_band":"11-50","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"BambooHR","truth_index":null},"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":"inferred","locations":[],"countries":[],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":3,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AI Agents","optional":false},{"name":"Amazon EC2","optional":false},{"name":"Amazon EKS","optional":false},{"name":"Amazon S3","optional":false},{"name":"ArgoCD","optional":false},{"name":"AWS","optional":false},{"name":"AWS Lambda","optional":false},{"name":"CI/CD","optional":false},{"name":"Datadog","optional":false},{"name":"GitOps","optional":false},{"name":"Grafana","optional":false},{"name":"Helm","optional":false},{"name":"IAM","optional":false},{"name":"ISO 27001","optional":false},{"name":"Kubernetes","optional":false},{"name":"Prometheus","optional":false},{"name":"Python","optional":false},{"name":"Terraform","optional":false},{"name":"TypeScript","optional":false},{"name":"Windows","optional":false}],"status":"live","first_seen_at":"2026-10-06T00:00:00Z","employer_posted_date":"2026-10-06","last_verified_at":"2026-10-18T01:10:25Z","board_verified":true,"closed_at":null,"days_open":12,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":12},"description":"Why Semble:\nAre you looking to impact and be part of something special, such as shaping the future of healthcare?\nAt Semble, we are on a mission to enable health professionals to amplify their impact. We improve the way healthcare is delivered to millions of people by providing doctors and their teams with powerful, innovative, intuitive, and secure software. Our cloud-based clinical system is already used by thousands of clinicians, making their lives easier and saving them money, while structuring their health data to help research.\nWe are a passionate and driven team, lucky to unite under strong cultural drivers:\nImpact - We do work that matters. \nCollaboration - We are in it together. \nHuman touch- We care deeply. \nThis role can be fully remote in the UK or France. We are unfortunately not able to consider candidates located outside these locations and time zones at this stage.\nAbout the Team\nWe're guided by one core question: how do we help our colleagues reduce cognitive load and get more done? Whether that's building tools to make operating code in production easier, running foundational shared services, or educating engineers on AWS and Kubernetes, our work has a direct multiplier effect on the rest of the business. We work closely with security and Implementation teams to make sure our infrastructure decisions serve the wider organisation's goals.\nThe Platform team exists to make the whole engineering organisation more effective. We're responsible for:\nDeveloper Productivity and Experience, including the tooling engineers rely on every day;\nDeveloper Enablement and Engagement, helping teams self-serve and grow their skills\nCloud Infrastructure, spanning AWS, Kubernetes (EKS) and MongoDB Cloud\nAgentic platform enablement, workflows and automation\nInfrastructure as Code, primarily through Terraform\nModern CI/CD, using GitOps patterns and tools such as ArgoCD\nThe Role\nAs a Senior Platform Engineer, you'll be a driving force behind the evolution of Semble's engineering platform and the day-to-day experience of every engineer who builds on top of it. You'll champion infrastructure best practices, shape team goals, and influence the wider engineering roadmap. Just as importantly, you'll obsess over friction: the small (and large) things that slow engineers down, and how to remove them through better tooling, clearer paths, and stronger enablement.\nThis is a senior, high-trust role: you'll be expected to make sound architectural judgement calls, mentor other engineers, and represent the Platform team's priorities in cross-functional conversations, all while keeping empathy for the end-user (your fellow engineers) at the centre of what you build.\nIn One Year, You'll Know You Were Successful If You...\nDeveloper productivity and enablement\nReduced the barrier for every engineer to build, ship, and operate their own code in production, measured through faster lead time for changes and fewer hand-offs\nBuilt or improved self-service tooling and \"golden paths\" (e.g. project templates, standard CI/CD pipelines, scaffolding tools) so teams can spin up new services without needing Platform's direct involvement\nImproved onboarding for new engineers, shrinking the time it takes someone to make their first meaningful production contribution\nRan or contributed to developer experience initiatives such as office hours, internal workshops, or \"lunch and learn\" sessions to build AWS/Kubernetes/CI-CD literacy across the wider engineering org\nWrote and maintained clear, discoverable documentation and runbooks, treating docs as a product with the same quality bar as code\nGathered and acted on developer experience signals (e.g. surveys, feedback loops, usage metrics on internal tools) to prioritise the roadmap based on real pain points, not assumptions\nPartnered with engineering teams to understand their workflows first-hand (shadowing, pairing, dogfooding your own tools) rather than building in isolation\nBrought innovative ideas to the team and contributed meaningfully to the Platform roadmap, balancing infrastructure evolution with tooling and enablement work\nEstablished objective measures of \"done\" and documented assumptions clearly, so both infrastructure and tooling initiatives had transparent success criteria\nContributed to observability as code initiatives, both inside the team and across engineering\nInfrastructure & reliability\nProvided a highly available and performant platform, including our AWS, Kubernetes (EKS) and MongoDB Cloud infrastructure\nHardened production systems, improving uptime, graceful degradation, and automated recovery\nModernised our CI/CD pipelines leveraging GitOps practices (e.g. ArgoCD), making deployments faster, safer and more transparent\nEvolved our Terraform-based Infrastructure as Code, improving consistency, reusability, and safety of infrastructure changes\nEstablished or improved SLAs/SLOs for core platform infrastructure\nWorked with Security to raise our compliance and security posture without adding unnecessary burden on other engineering teams\nIdentified and delivered infrastructure cost-saving opportunities\nA Background Like This Helps\nDeveloper productivity & enablement\nA solid background in software engineering (3-5 years), ideally having spent meaningful time as a product/application engineer before moving into platform work, giving you real empathy for the developer experience you're building for and the judgement to design tools and systems that fit naturally into developer workflows.\nExperience building or contributing to internal developer platforms, portals, or self-service tooling (e.g. Backstage, custom CLIs, service catalogues)\nA track record of designing \"paved roads\" or golden paths that make the right way the easy way for other engineers\nExperience improving CI/CD pipelines not just for reliability, but for speed and developer feedback loops (e.g. reducing build/deploy times, improving local dev environments)\nComfort running enablement activities: writing documentation, running training sessions, pairing with other teams, or acting as an internal advocate for good engineering practices\nExperience using developer experience metrics or frameworks (e.g. DORA metrics, SPACE framework, internal DevEx surveys) to guide prioritisation\nA genuine interest in developer experience: you get satisfaction from removing friction for other engineers, not just from the infrastructure itself\nWorked with monitoring and observability tools such as Datadog\nGeneral\nProficiency in at least one of: Go, Python, Typescript, or strong shell scripting skills\nStrong communication skills and comfort influencing technical direction across teams\nA desire to keep learning, we'll help you grow further\nInfrastructure & cloud\nDeep understanding of core AWS services including IAM, S3, EC2, EKS, RDS, Lambda.\nExperience running, maintaining and troubleshooting Kubernetes clusters (EKS) in a production, multi-tenant environment\nProven experience with Infrastructure as Code, particularly Terraform, and configuration/deployment tooling such as Helm\nHands-on experience with modern GitOps CI/CD tooling (Argo CD, Flux, or similar)\nExperience with MongoDB or similar managed database platforms\nExperience monitoring and operating production systems (e.g. Datadog, Prometheus, Grafana)\nExperience operating within a standards-compliant environment (e.g. ISO 27001)\nWhat you’ll get in return\nThe great feeling coming with knowing you do something that matters: shaping the future of healthcare!\nAutonomy and ownership- we’ll set the vision and share the context, then we trust you to run with things - that’s the reason we hire you! \n36 days off: 25 holidays +bank holidays +3 extra days (birthday and ‘feel good’ days)- that we will expect you to actually take so you can recharge and rest. \nPrivate Health Insurance- covering physical and mental health, as well as dental and optical! \nHybrid & flexible work environment- work from anywhere in the UK, with also some flexibility to work across Europe. You decide how much or how little you go to the office. \nGet the tech you need -You will get the latest MacBook (unless you prefer Windows) and take your pick across a wide range of equipment to set up your home office ergonomically. \n\nWork alongside an inspiring team- our two founders have started Semble after a successful startup exit, and your future colleagues are all knowledgeable and innovators in their field. \nFantastic office space in Central London, right outside Monument - with a roof terrace, weekly animations, loads of natural light, and cute doggies! \nThe usual free bits coming with nice offices(barista coffee, tea, fruit, happy hours and activities...). \nWe welcome applications from people of all backgrounds and all walks of life, including any typically underrepresented groups in the technology industry. We also encourage applications from disabled and neurodiverse candidates, so if there are any adjustments we can make to support you throughout the recruitment process, please do let us know.","description_format":"text","description_chars":9050,"description_truncated":false,"requirements":{"experience_years_min":3,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Apple Macbook","Flexible schedule","Health insurance","Home office"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Practice Management Software"],"lifecycle":[{"event":"open","at":"2026-10-16T09:31:14Z"}],"visa":[],"liveness":{"score":67,"band":"ok","label":"Likely open","p_open":1,"p_active":0.742,"p_room":0.9,"age_days":11,"expected_fill_days":30,"reasons":["conf:3","win:mid"],"computed_at":"2026-10-17T05:46:00Z"},"pay":null,"html_url":"https://alion.io/job/semble-senior-platform-engineer","json_url":"https://alion.io/job/semble-senior-platform-engineer.json","meta":{"generated_at":"2026-10-18T01:41:10Z","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":2790,"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":172425},"rest":"https://alion.io/mcp/rest/get_company?id=172425"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fsemble-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%2Fsemble-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%2Fsemble-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/semble-senior-platform-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fsemble-senior-platform-engineer"}]}