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Xona Space Systems

Développeur·euse Frontend / Frontend Developer

Posted 4 Days Ago
Be an Early Applicant
In-Office
Montréal, QC, CAN
Mid level
In-Office
Montréal, QC, CAN
Mid level
The Frontend Developer will prototype, develop, and deliver a Customer Portal for PNT services, collaborating closely with the Product Manager, UX Designer, and other developers. Responsibilities include design validation, building a component library, managing code quality, and integrating with various platforms.
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Xona is the navigational intelligence company bringing real-time, centimeter-level certainty to any device, anywhere on Earth.

With Pulsar – the world’s most advanced PNT satellite infrastructure in Low Earth Orbit – Xona will offer a future-proof, backwards-compatible global positioning system optimized for absolute precision, superior power, and robust protection.

Xona développe la prochaine génération de navigation par satellite — une solution performante et résiliente en alternative au GPS, reposant sur une constellation commerciale de satellites en orbite terrestre basse (LEO). Notre objectif est de redéfinir les systèmes de positionnement, de navigation et de synchronisation (PNT) de fond en comble.

Le ou la Développeur·euse Frontend est responsable du prototypage, du développement et de la livraison du portail client de Xona, qui permet d’offrir nos services PNT à divers marchés. Ce rôle est basé au bureau de Montréal et s’inscrit dans un processus de conception produit en 4D, nécessitant une collaboration étroite avec le ou la gestionnaire de produit, le ou la concepteur·trice UX et les développeur·euse·s logiciel.

Il s’agit du premier poste en développement frontend au sein de l’entreprise, offrant une occasion d’évolution vers un rôle senior ou de leadership à mesure que les produits de Xona se déploient à l’échelle mondiale.

Responsabilités

  • Valider les décisions de conception au moyen de prototypes rapides, en tirant parti de techniques modernes (p. ex. prototypage assisté par IA)

  • Prendre en charge les transitions entre conception et développement (design–dev), en identifiant rapidement les écarts, en évaluant la faisabilité et en estimant les efforts avant la finalisation de la portée

  • Concevoir et maintenir une bibliothèque de composants alignée sur le système de design

  • Assurer la qualité du code frontend, incluant la structuration des requêtes, les stratégies de mise en cache et la gestion des erreurs

  • Intégrer les solutions avec AWS, GraphQL, des API REST et des serveurs MCP

  • Garantir la qualité de l’application web grâce à des tests d’API et des tests de bout en bout

  • Contribuer à la découverte produit, à la conception UX et à la définition des API

  • Veiller au respect des normes d’accessibilité tout au long du développement et assurer la compatibilité avec différents formats d’écran

Qualifications requises

  • 3 à 5+ années d’expérience en développement frontend, en conception ou en développement full stack

  • Maîtrise de JavaScript et TypeScript (React Native, Next.js, Vue.js)

  • Autonomie dans le déploiement d’applications web et la gestion des dépendances

  • Expérience démontrée dans la mise en production d’applications web complexes à grande échelle sur des infrastructures infonuagiques

  • Expérience en tests frontend, en tests d’API et en automatisation

  • Capacité et volonté de travailler en présentiel à Montréal

Qualifications souhaitées

  • Maîtrise d’outils de design (Figma, Framer)

  • Expérience en référencement web (SEO) et avec des plateformes d’analytique web (Pendo, PostHog)

  • Connaissance des moteurs cartographiques (Mapbox) et des données géospatiales

  • Expérience préalable en environnement startup

  • Maîtrise du français et de l’anglais

  • Excellentes aptitudes en résolution de problèmes et aisance à évoluer dans des environnements peu structurés

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Xona is building the next generation of satellite navigation — a high-performance, resilient alternative to GPS powered by a commercial constellation of Low Earth Orbit (LEO) satellites. We’re here to redefine Position, Navigation, and Timing (PNT) from the ground up.

The Frontend Developer is responsible for the prototyping, development and delivery of Xona’s Customer Portal, offering our PNT services to various markets. This role operates from Xona’s Montréal office and operates in the 4D product design process, requiring tight collaboration between the Product Manager, UX Designer and Software Developers.

This is the first frontend development position in the company and an opportunity to grow as a senior or lead as Xona’s products scale globally.

What You’ll Do

  • Validate design decisions with fast prototypes, leveraging modern techniques like vibe-coding

  • Own the Design–Dev handoffs— catch gaps early, assess feasibility, estimate before scope gets locked

  • Build a component library, aligned with the design system

  • Own frontend code including query structuring, caching strategy, and error handling

  • Integrate with AWS, GraphQL, REST API and MCP servers

  • Own the quality of the web application with API & end-to-end testing

  • Contribute to Product discovery, UX Design, API definition

  • Ensure accessibility reviews throughout development, support various device sizes

Required Qualifications

  • 3–5+ years of experience in frontend, design or fullstack roles

  • Expertise in JavaScript and TypeScript (React native, Next.js, Vue.js)

  • Autonomous deploying web applications & managing dependencies

  • Proven record shipping rich web apps at scale on Cloud infrastructure

  • Experience in Frontend testing, API testing, automations

  • Ability and willingness to work on-site in Montréal

Desired Qualifications

  • Power users with design toolkit (Figma, Framer)

  • Experience with SEO, Web analytics platform (Pendo, Posthog)

  • Familiarity with Maps engines (Mapbox) and geospatial data

  • Prior exposure to startup organizations

  • Fluent in English and French

  • Excellent problem-solving skills, with the confidence to navigate unstructured environments.

For U.S. Roles: To comply with U.S. Government space technology export regulations, applicant must be a U.S. citizen, lawful permanent resident of the United States (i.e. Green Card holder), or other protected individual as defined by 8 U.S.C. 1324b(a)(3).

For U.K. Roles: To comply with U.K. regulations, this role requires Baseline Personnel Security Standard (BPSS) checks, and successful candidates must be eligible to obtain UK Security Clearance (SC).

For Canada Roles: Successful candidates must obtain and hold a security clearance at the reliability status level, and pass security assessment for the Canadian Controlled Goods Program (CGP) and ITAR.

We celebrate diversity and are committed to creating an inclusive environment for all employees. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status.

Top Skills

AWS
GraphQL
JavaScript
Next.Js
React Native
Rest Api
Typescript
Vue

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