{"id":346499,"url":"https://alion.io/job/clarity-visual-web-full-stack-tech-lead","title":"Web: Full Stack Tech Lead","company":{"id":125767,"name":"Clarity","domain":"clarity.agency","url":"https://alion.io/company/clarity-2","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","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":"2026-10-27T05:46:45Z"}},"role":"Leadership","role_family":"Leadership","seniority":"lead","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":85000,"max_usd":190000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":73},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Amazon CloudWatch","optional":false},{"name":"Amazon ECS","optional":false},{"name":"Amazon EKS","optional":false},{"name":"AWS","optional":false},{"name":"AWS Lambda","optional":false},{"name":"CI/CD","optional":false},{"name":"Claude Code","optional":false},{"name":"Cursor","optional":false},{"name":"Docker","optional":false},{"name":"Dropbox","optional":false},{"name":"ElasticSearch","optional":false},{"name":"FastAPI","optional":false},{"name":"GCP","optional":false},{"name":"GitHub Actions","optional":false},{"name":"Google Cloud Run","optional":false},{"name":"Google GKE","optional":false},{"name":"Grafana","optional":false},{"name":"IAM","optional":false},{"name":"Jest","optional":false},{"name":"Least Privilege","optional":false},{"name":"OpenAI","optional":false},{"name":"OpenTelemetry","optional":false},{"name":"Playwright","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Prometheus","optional":false},{"name":"Redis","optional":false},{"name":"SLI/SLO/SLA","optional":false},{"name":"SOC 2","optional":false},{"name":"SQL","optional":false},{"name":"Structured Outputs","optional":false},{"name":"Terraform","optional":false},{"name":"TypeScript","optional":false},{"name":"Vitest","optional":false},{"name":"Kubernetes","optional":true},{"name":"Python","optional":true}],"status":"live","first_seen_at":"2025-09-17T14:14:08Z","employer_posted_date":"2025-09-17","last_verified_at":"2026-10-27T18:53:58Z","board_verified":true,"closed_at":null,"days_open":405,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":404},"description":"Full-Stack Web Developer - React, FastAPI, Elasticsearch (AWS/GCP)\nAbout Clarity\nClarity is redefining customer experience with AI. Our mission is to empower businesses to deliver faster, smarter, and more human service interactions. By combining cutting-edge AI with intuitive design, we enable customer service teams to operate more efficiently while providing customers with seamless, personalized experiences.\nWe are trusted by industry leaders like OpenAI, GrubHub, STC and Tabby who rely on us to deliver real impact. Our investors include Prosus Ventures, STV AI Fund (backed by Google) and angels from Open AI and Google. With a 25% month-on-month growth rate and over 300% net revenue retention, this is a unique opportunity to join a hyper growth AI company and redefine an industry.\nAs a Full-Stack Web Developer at Clarity, you’ll own end-to-end product surfaces-from sleek React UIs to FastAPI services and Elasticsearch search/ -shipping fast, safely, and beautifully. You’re AI-native (Cursor, v0, Claude Code in your muscle memory), comfortable in both AWS and GCP, and you treat infra & DevOps as part of building great product, not an afterthought. You’ll collaborate directly with engineers, PMs, and the CTO to turn specs into production features used by brands like Grubhub, Booking, Dropbox & Uber.\nWhat you'll do\n50% Build - design & ship\nBuild responsive React (TypeScript) frontends (state mgmt, data viz, virtualized tables, forms, charts, file uploads, accessibility).\n\nImplement FastAPI services (async I/O, Pydantic v2, background jobs, caching) with robust testing.\n\nDesign Elasticsearch models & queries\n\nIntegrate AI features (streaming responses, structured outputs, eval hooks) to accelerate prototyping and user value.\n\n25% Scale & operate\nShip and run services on AWS and/or GCP (ECS/EKS/Lambda or Cloud Run/GKE), containerized with Docker.\n\nOwn CI/CD (GitHub Actions), IaC (Terraform), logging/metrics/tracing (OpenTelemetry, CloudWatch/Stackdriver, Grafana/Prometheus), and SLOs.\n\nOptimize p95 latency, throughput, and cost; manage secrets, networking, VPCs, and build resilient retries/backoffs.\n\n15% Collaborate\nWork closely with design/PM on specs and UX polish; pair with back-end/ML on data contracts and APIs.\n\nPartner with the Insights team on taxonomy/schema changes and with Data/ML on search & analytics expectations.\n\n10% Align & showcase\nWrite crisp docs, PRDs/tech notes, and demo your work to execs & customers.\n\nContribute to on-call for your services and drive post-mortems to closure.\n\nWhat makes you a great fit\nOwner’s mindset: you take ideas from zero → shipped → observed → iterated; you sweat details and outcomes.\n\nAI-native builder: Cursor, v0, Claude Code (and friends) are daily drivers for rapid prototyping and refactors.\n\nReact + TypeScript mastery: component design, hooks, performance, testing (Vitest/Jest, Playwright).\n\nFastAPI expertise: async patterns, Pydantic schemas, pagination, auth (OAuth2/OIDC), rate-limits, background jobs.\n\nElasticsearch fluency: mappings/analyzers (ngrams, synonyms), aggregations, filters, sorting, performance tuning.\n\nCloud & DevOps: solid experience on AWS and/or GCP, Docker, Terraform, GitHub Actions, monitoring/alerts.\n\nDatastores: Postgres (SQL, migrations), Redis (caching/queues).\n\nQuality & security: code reviews, type safety, lint/format, secrets mgmt, least-privilege IAM, basic SOC2 hygiene.\n\nCommunicates clearly with product sense; ships value weekly.\n\nPerks and bonuses\nRemote-first freedom & flexible hours\n\nRegular off-sites & monthly virtual game nights\n\nUnlimited vacation (minimum 20 days encouraged)\n\nLearning budget for conferences, courses & books\n\nStartup equity in a rapidly growing market","description_format":"text","description_chars":3719,"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"],"hiring_locations":[{"name":"United Kingdom","iso":"GB","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Conversational AI","Customer Support & Help Desk Software"],"lifecycle":[{"event":"open","at":"2026-09-05T18:37:04Z"}],"visa":[],"liveness":{"score":7,"band":"cold","label":"Long shot","p_open":1,"p_active":0.234,"p_room":0.28,"age_days":404,"expected_fill_days":27,"reasons":["conf:0","win:tail","crowd:"],"computed_at":"2026-10-27T05:46:45Z"},"pay":null,"html_url":"https://alion.io/job/clarity-visual-web-full-stack-tech-lead","json_url":"https://alion.io/job/clarity-visual-web-full-stack-tech-lead.json","meta":{"generated_at":"2026-10-27T22:16:48Z","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":13894,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-28T00:00:00Z"}},"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":125767},"rest":"https://alion.io/mcp/rest/get_company?id=125767"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fclarity-visual-web-full-stack-tech-lead"},{"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%2Fclarity-visual-web-full-stack-tech-lead"},{"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%2Fclarity-visual-web-full-stack-tech-lead"},{"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/clarity-visual-web-full-stack-tech-lead\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fclarity-visual-web-full-stack-tech-lead"}]}