{"id":4250158,"url":"https://alion.io/job/seloger-fullstack-developer-reacttypescript-fhx","title":"Fullstack Developer (React/TypeScript) (f/h/x)","company":{"id":52970,"name":"SeLoger","domain":"seloger.com","url":"https://alion.io/company/seloger","size_band":"501-1000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":true,"listed_via":null,"ats_vendor":"Ashby","truth_index":null},"role":"Backend","role_family":"Backend","seniority":null,"employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Paris, France"],"countries":["FR"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Amazon S3","optional":false},{"name":"AWS","optional":false},{"name":"CI/CD","optional":false},{"name":"CircleCI","optional":false},{"name":"Cypress","optional":false},{"name":"Datadog","optional":false},{"name":"GitHub","optional":false},{"name":"React.js","optional":false},{"name":"State Management","optional":false},{"name":"Terraform","optional":false},{"name":"TypeScript","optional":false},{"name":".NET","optional":true},{"name":"C#","optional":true},{"name":"JavaScript","optional":true},{"name":"Node JS","optional":true}],"status":"live","first_seen_at":"2026-11-13T08:57:25Z","employer_posted_date":"2026-11-13","last_verified_at":"2026-11-14T16:19:26Z","board_verified":true,"closed_at":null,"days_open":1,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":1},"description":"SeLoger helps people find a home in France. We have done it for 30 years, and we are now rebuilding the product around mobile, data and AI, with the goal of becoming the most trusted real estate platform in the country and a reference in Europe. Our mission is to unlock everyone's perfect place. Meilleurs Agents, the leading home estimation website in France, is part of the same group. We are part of Aviv, Europe's largest real estate tech group, backed by KKR and CPP Investments.\nWhy This Role\nAs a Fullstack Developer in the Acquisition SEO team, you’ll build and scale the React/TypeScript components that help people discover listings on SeLoger and Logic-Immo through search engines. These include meta data, structured data, editorial blocks and interlinking. Our components are distributed as micro-frontends across AVIV’s multi-brand platform, so several brands use what you build at the same time. That makes quality, robustness and performance essential. You’ll work closely with back-end engineers and other front-end developers, help shape shared front-end architecture across brands, and own your components from the first line of code to monitoring in production.\nWhat you can expect\nDevelop and maintain React/TypeScript components that expose SEO data across multiple brands, including meta tags, structured data, editorial blocks and interlinking\n\nEnsure the quality and performance of our micro-frontends, with a focus on server-side rendering (SSR), Core Web Vitals and accessibility\n\nWrite and maintain end-to-end tests (Cypress) and unit tests covering critical components\n\nContribute to our AWS infrastructure, including package deployment on CodeArtifact, S3 and eventing, and maintain our CircleCI pipelines\n\nTake part in shared front-end architecture decisions across brands, covering the design system, TypeScript conventions and state management\n\nInstrument components with Datadog and work with back-end engineers on API contracts\n\nAbout you\nProven expertise in React and TypeScript, including complex components and advanced patterns such as hooks, context and performance optimisation\n\nStrong TypeScript skills: strict typing, generics and utility types are part of your daily toolkit\n\nExperience deploying front-end applications on AWS (S3, CloudFront) and working with eventing, with good awareness of cost\n\nAbility to read and contribute to infrastructure as code in Terraform\n\nExperience configuring and maintaining CI/CD pipelines in CircleCI\n\nSolid GitHub workflows, including branching, pull requests and constructive code review\n\nExperience writing end-to-end tests for React components with Cypress\n\nFront-end monitoring experience with Datadog, including Real User Monitoring (RUM) and alerting\n\nNice to have\nExperience with micro-frontend architecture, such as module federation or import maps\n\nUnderstanding of how front-end rendering affects SEO, including SSR/SSG, dynamic meta tags and structured data\n\nExperience working on a multi-brand or multi-product design system\n\nBasic back-end knowledge (.NET or Node.js) to collaborate effectively with data-serving services\n\nHelp us shape the future of real estate.\nAt SeLoger, we are an equal opportunities employer and an organisation where everyone is welcomed to be their authentic selves. We strongly encourage individuals with visible and non visible disabilities, all educational backgrounds, people from minority backgrounds, those from the LGBTQIA+ community and parents and carers to apply. If you need reasonable adjustments at any point in the application or interview process, or wish to discuss part time or flexible working requirements, please let us know.\nIn your application, please feel free to note which pronouns you use (For example - she/her/hers, he/him/his, they/them/theirs, etc).","description_format":"text","description_chars":3800,"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":["Flexible schedule"],"hiring_locations":[{"name":"France","iso":"FR","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Real Estate Brokerage","Architecture","Online Classifieds"],"lifecycle":[{"event":"open","at":"2026-11-13T14:03:53Z"}],"visa":[],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":0,"expected_fill_days":12,"reasons":["conf:3","win:early"],"computed_at":"2026-11-14T05:58:10Z"},"pay":null,"html_url":"https://alion.io/job/seloger-fullstack-developer-reacttypescript-fhx","json_url":"https://alion.io/job/seloger-fullstack-developer-reacttypescript-fhx.json","meta":{"generated_at":"2026-11-14T20:13:17Z","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":25253,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-15T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.1,"usd":0.01,"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":52970},"rest":"https://alion.io/mcp/rest/get_company?id=52970"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fseloger-fullstack-developer-reacttypescript-fhx"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"free","price":{"credits":0,"usd":0},"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%2Fseloger-fullstack-developer-reacttypescript-fhx"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.1,"usd":0.01},"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%2Fseloger-fullstack-developer-reacttypescript-fhx"},{"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/seloger-fullstack-developer-reacttypescript-fhx\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fseloger-fullstack-developer-reacttypescript-fhx"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":4250158}},{"tool":"search_jobs","arguments":{"company":"seloger.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":4250158},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. 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