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HomeCompaniesStay22Senior Frontend Developer - Phantom

Senior Frontend Developer - Phantom

Stay22 · Montreal HQ · Hybrid · Active · Ashby

Job facts

FieldValue
CompanyStay22
TitleSenior Frontend Developer - Phantom
Normalized title-
Department / teamProduct & Engineering / Product & Engineering, Phantom Squad
LocationMontreal, QC, Canada
Work modelHybrid / Hybrid
Employment typeFull Time
Salary-
Statusactive
ATS providerAshby
Posted / first seen / 2026-05-29
Changed / last seen2026-05-29 / 2026-06-06

Related slices

PageWhat it containsOpen
Company jobsActive postings from Stay22.Open
Company breakdownsRole, location, ATS, and work model facets for this company.Open
ATS provider jobsActive postings observed through Ashby.Open
Provider filtered searchThe same provider as a filtered job collection.Open
City jobsActive postings in Montreal.Open
Department jobsActive postings in Product & Engineering.Open
Work model jobsActive Hybrid postings.Open
Lifecycle eventsOpen, update, close, and reopen events for this posting.Open
Original postingCanonical source or apply URL captured from the ATS.Open

Linked records

CompanyStay22
Sourceed539707-848e-4c50-93ab-955a1e699a98
ATS providerAshby

Description

-English version to follow- À propos de Stay22 Chez Stay22, nous révolutionnons la façon dont les gens convertissent en ligne. Notre plateforme d'affiliation alimentée par l'IA aide les éditeurs, les plateformes de billetterie et les créateurs de contenu à débloquer de nouvelles sources de revenus tout en améliorant l'expérience utilisateur de leur audience. Chez Stay22, nos partenaires ne se contentent pas de gagner plus, ils offrent aussi plus. Rejoignez-nous et participez à quelque chose d'important qui bouleverse le monde de l'affiliation. À propos du poste En tant que développeur Frontend senior dans l'équipe Phantom, vous jouerez un rôle central dans le développement de notre widget intégré et de notre plateforme d'affiliation. Vous optimiserez l’exécution des scripts côté navigateur pour garantir des performances élevées sur divers sites, tout en concevant des mécanismes de suivi de session et d’empreintes digitales respectueux de la vie privée. Vous serez responsable du cycle complet des scripts, de l’optimisation du chargement à la gestion des événements et à la récupération des erreurs, et contribuerez à maintenir l’infrastructure qui alimente les produits intégrables de Stay22. Principales responsabilités Optimiser en continu les temps de chargement et l’efficacité d’exécution des scripts (minification, mise en cache, chargement différé). Créer des méthodes fiables pour injecter du contenu et des widgets sur différents sites (DOM, mises en page dynamiques). Développer des gestionnaires d’événements précis pour suivre l’interaction utilisateur avec les éléments intégrés. Implémenter des techniques d’empreintes digitales pour suivre les sessions utilisateurs tout en respectant la confidentialité. Créer et maintenir des scrapers Node.js/Python pour collecter des données depuis des sites ou APIs partenaires, avec des sources de secours pour garantir la résilience. Dépanner et adapter la logique des scripts pour les conditions réelles et gérer les conflits avec d’autres scripts tiers. Superviser l’ensemble de la pile des produits intégrés (scripts, SDK, API) et collaborer avec les équipes pour intégrer les nouvelles fonctionnalités. Exigences Maîtrise de l’anglais pour collaborer avec des collègues internationaux. Expérience approfondie en JavaScript vanilla / ES6+ ou TypeScript, sans framework (React/Vue non requis). Connaissance fine de la boucle d’événements, du DOM/CSSOM, et de l’optimisation des performances web (FCP, LCP…). Maîtrise de Node.js pour API et scrapers ; Python un plus. Connaissance HTTP, REST/JSON et proxies. Compréhension des techniques d’empreinte digitale et des enjeux de confidentialité (cookies, sessions, CORS, RGPD). Contributions open source ou projets GitHub appréciés. Licence ou master en informatique (ou expérience équivalente). Processus de recrutement Entretien avec l’équipe Talent (30–45 min) Entretien technique / design système (60 min) Entretien final avec le PDG (30 min) Offre et intégration 🎉 Le processus peut évoluer selon les besoins de l’équipe. Pourquoi rejoindre Stay22 Soutenez les créateurs de contenu voyage : faites partie d’une équipe qui aide les créateurs à explorer le monde tout en augmentant leurs revenus passifs. Boostez votre croissance : nous recrutons des talents d’exception et leur donnons les moyens d’exceller, de progresser et de développer leurs compétences uniques. Ayez un impact réel : prenez des initiatives et contribuez directement à l’évolution de Stay22. Un emplacement idéal : travaillez dans nos bureaux lumineux et dynamiques au cœur de Little Italy, entourés de boutiques et restaurants branchés. Soyez vous-même : profitez d’un code vestimentaire décontracté et d’horaires flexibles. Avantages sociaux complets : santé, dentaire, retraite, opportunités de formation et développement, activités sociales et team building, y compris des retraites mémorables. (Stay22 est un employeur garantissant l’égalité des chances. Toutes les candidatures qualifiées seront examinées. Si vous avez un handicap ou des besoins particuliers nécessitant des aménagements, contactez-nous à [email protected].) ________________________________ About Stay22 At Stay22, we're revolutionizing the travel media industry. Using cutting-edge AI-powered solutions, we empower travel media companies and content creators to unlock new revenue streams and seamlessly monetize their platforms. We're a team of passionate innovators, committed to making travel media more rewarding for everyone. About the role As a Senior Frontend Developer on the Phantom squad, you will play a key role in advancing our embedded widget and affiliate platform. Your mission will be to streamline browser execution and ensure high performance of our scripts across diverse websites. You will design mechanisms for privacy-conscious session tracking and fingerprinting, and take ownership of the full script lifecycle – from load optimization to event handling and error recovery. Working closely with product and engineering leads, you will help shape and maintain the core infrastructure that powers Stay22’s embeddable products, ensuring they run reliably under real-world constraints. Key responsibilities Continuously improve the load time and execution efficiency of our browser scripts (minification, caching, lazy loading, etc.) Create robust methods for injecting content and widgets into arbitrary websites (e.g. automating DOM manipulation, handling dynamic page layouts) Implement reliable client-side event handlers to track user interactions with embedded elements, ensuring accurate data capture Develop and integrate fingerprinting techniques to distinguish and track user sessions across domains in a privacy-aware way Build and maintain Node.js/Python-based scrapers to collect data from partner websites or APIs when needed; design fallback data sources for resiliency Troubleshoot and adapt our runtime logic for real-world usage, including handling unexpected page structures or third-party script conflicts Own the entire embedded product stack (scripts, SDKs, APIs) and collaborate with other teams to integrate updates and new features smoothly Requirements English proficiency is required for daily communication with international colleagues and direct reports. Deep hands-on experience with vanilla and ES6+ JavaScript or TypeScript without relying on frameworks (no React/Vue/etc. for core logic) Strong knowledge of the browser event loop, DOM API, CSSOM, rendering pipeline, and how to optimize for First Contentful Paint (FCP), Largest Contentful Paint (LCP), etc. Proficiency with Node.js for building APIs and web scrapers; experience with Python-based scraping is a plus. Familiarity with HTTP, REST/JSON, and proxies Understanding of browser fingerprinting methods and privacy considerations (e.g. cookie/session management, CORS, GDPR). This is a big asset Public contributions on GitHub or other open-source involvement (project contributions, libraries) are strongly preferred Bachelor’s or Master’s in Computer Science (or equivalent) is a plus, or equivalent professional experience in software development What to Expect from our Hiring Process ​ We know your time’s valuable, so here’s the quick rundown of what to expect. Screening call with our Talent Acquisition Partner (30-45 minutes) Whiteboarding session oriented on System Design (Miro) with the Engineering Team (60 minutes) Final interview with our CEO (30 minutes) Offer & onboarding 🎉 Please note that this process is subject to change at any point, based on additional requirements from the team. Why join Stay22? Support Travel Creators: Be part of a team that empowers travel creators to explore the world by increasing their passive income potential. Empower Your Growth: We hire champions and give them the opportunity to excel and honing their superpowers. Lead with Impact: We empower our team members to take charge and make a real impact in the Stay22 universe. Location, Location, Location: Enjoy our bright and vibrant office in the heart of Montreal’s Little Italy, surrounded by the best shops, restaurants and close to the Metro de Castelnau. Be Yourself: Embrace a come-as-you-are dress code and a flexible work schedule. Comprehensive Benefits: We offer health & dental benefits, retirement plans, learning & development opportunities, and social & team-building activities, including exciting retreats. (Stay22 is an equal-opportunity employer. All qualified applicants are given consideration. If you have a disability or particular need that requires accommodation, please contact us at careers at stay22.com ) Your application will be reviewed by Cynthia, our internal recruiter! Ton CV sera lu par Cynthia, notre recruteuse interne! If you don’t meet every requirement but you’re excited, let’s talk. Même si tu ne coches pas toutes les cases, on aimerait quand même te rencontrer.

Full job record

Job ID0176992d5043a5c72ea3776fb3f74efae218928f
Org IDd2b5b30a-5b7a-4a51-bfaa-39914bc7fcf2
Source IDed539707-848e-4c50-93ab-955a1e699a98
Board IDed539707-848e-4c50-93ab-955a1e699a98
Providerashby
Provider Job Key5d0370b0-6301-46b9-9fb3-b406051fa230
TitleSenior Frontend Developer - Phantom
Normalized Title
Statusactive
Activeyes
Location TextMontreal HQ
DepartmentProduct & Engineering
TeamProduct & Engineering, Phantom Squad
Employment Typefull_time
Workplace Typehybrid
Remote Policyhybrid
CountryCanada
RegionQC
CityMontreal
Salary Raw
Salary Min
Salary Max
Salary Currency
Salary Period
Source URLhttps://jobs.ashbyhq.com/stay22/5d0370b0-6301-46b9-9fb3-b406051fa230
Apply URLhttps://jobs.ashbyhq.com/stay22/5d0370b0-6301-46b9-9fb3-b406051fa230/application
First Seen At2026-05-29 06:59:00Z
Last Seen At2026-06-06 09:35:47Z
Last Checked At2026-06-06 09:35:47Z
Last Changed At2026-05-29 06:59:00Z
Inactive At
Source Posted At
Source Updated At
Raw Payload Uris3://job-postings-prod-raw-590183727216/raw/provider=ashby/board=stay22/date=2026-06-06/2026-06-06T09-35-41-743Z-64a2122cd1f60a5305f2a5f255e83659d79612d8d1431daed1d8765e44f0f0d0.json
Event Fields
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  "last_changed_at": "2026-05-29T06:59:00.721Z",
  "active_status": "active"
}
Parsed Structured
{
  "language": "en",
  "location": {
    "raw": "Montreal HQ",
    "city": "Montreal",
    "region": "QC",
    "country": "Canada",
    "is_remote": false,
    "confidence": 0.75
  },
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  "salary_min": null,
  "inferred_at": "2026-06-06T09:35:47.547Z",
  "launch_scope": {
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    "included": true,
    "language": "en",
    "location": {
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  },
  "remote_policy": "hybrid",
  "salary_period": null,
  "workplace_type": "hybrid",
  "salary_currency": null
}
Extensions
{}
Native Structured
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  "team": "Product & Engineering, Phantom Squad",
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  "applyUrl": "https://jobs.ashbyhq.com/stay22/5d0370b0-6301-46b9-9fb3-b406051fa230/application",
  "isListed": true,
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  "updatedAt": null,
  "apiVersion": "ashby-non-user-graphql-v1",
  "department": "Product & Engineering",
  "publishedAt": null,
  "workplaceType": "Hybrid",
  "employmentType": "FullTime",
  "secondaryLocations": []
}
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