Senior Full-Stack Developer
Small Door Veterinary
Small Door is membership-based veterinary care designed with human standards that is better for pets, pet parents, and veterinarians alike. We designed and delivered a reimagined veterinary experience via a membership that includes exceptional care, 24/7 telemedicine, and transparent pricing - delivered with modern hospitality in spaces designed by animal experts to be stress-free. We opened our flagship location in Manhattan's West Village in 2019 and have quickly expanded across the East Coast. Small Door now operates in New York City, Boston, Washington DC, Maryland and Virginia with continued expansion plans in 2026.
This is the fifth company that Small Door’s founders have been involved in building. In building Small Door, they partnered with the people responsible for beloved consumer experiences like Warby Parker and Sweetgreen, in addition to healthcare innovators such as One Medical, CityMD and Flatiron Health. Small Door has raised capital from Lerer Hippeau, Primary Ventures, Brand Foundry, Toba Capital, and Pentland Group. The broader management team brings experience from Casper, One Medical, Soulcycle, Warby Parker, Sweetgreen, Peloton, Gilt Groupe, Lightspeed, and Outbrain.
The Full-Stack Developer will report directly to the VP of Data and Technology and will work closely with the growth, design and product management team and is based in Montreal .
We are seeking a Senior Full Stack Developer with a Bachelor’s degree in Computer Science, Information Technology, or a related field, coupled with a minimum of 5 years of proven experience in the industry. The ideal candidate will exhibit exceptional proficiency in modern front-end frameworks such as ReactJS and proficiency in back-end languages like Ruby or Python. Strong preference will be given to candidates with expertise in Ruby on Rails. Soft skills are paramount in this role, and we’re looking for someone with excellent communication skills, both verbal and written, to effectively collaborate with cross-functional teams. The ability to mentor junior developers and provide technical guidance is highly valued. You should be proficient in English, as clients that we support are based outside of Quebec, and will require communication in English. Additionally, strong problem-solving skills and a proactive mindset are essential for diagnosing and resolving issues across the entire application stack.
What you’ll do
Become an expert on our technical systems
Collaborate with our team to define what the ideal veterinary experience is and how technology can enhance it
Help the planning, execution and release of technical projects
Steer technical decisions about infrastructure and architecture;
Seek the right balance between moving quickly and improving the operability and scalability of the systems we build
Implement new features across our web and mobile clients to improve our member experience
Collaborate cross-functionally with product, growth, operations and more
Who you are
A minimum of 5 years of relevant experience as a Full Stack Developer. (Startups and fast-paced environments preferred). A Bachelor's degree in Computer Science, Information Technology, or related field is a plus.
Proven experience as a Full-Stack Developer utilizing modern front-end frameworks (e.g., ReactJS, NextJS) and back-end frameworks (e.g., Ruby on Rails, Django, Laravel). Strong preference for ReactJS and Ruby on Rails.
Expertise in JavaScript, CSS, HTML, and proficiency in back-end languages like Python or Ruby.
Solid understanding of Model-View-Controller (MVC) design patterns for building maintainable and scalable web applications.
Experience with testing frameworks to ensure code quality and application stability.
Proficiency with AI-assisted software engineering practices, including the use of agentic coding tools (e.g., Claude Code, GitHub Copilot, Cursor) to accelerate development workflows, code generation, and debugging.
Familiarity with browser-based debugging tools and performance testing software for optimizing user experience.
Strong troubleshooting skills with the ability to diagnose and resolve issues across front-end and back-end systems.
A willingness to share knowledge and support teammates through code reviews and pair programming.
Solid skills to organize, prioritize, and deliver projects effectively.
Familiarity with multiple application architectures (e.g., microservices, monolith) is a plus.
What you'll get
Competitive salary
Equity ownership
Health, dental + vision insurance
Upward mobility and growth opportunities
Generous paid-time off, parental leave, and company wide holidays
Discounted veterinary care for your loved ones
Growth opportunities
An opportunity to make a real impact on the people around you
A collaborative group of people who live our core values and have your back
--
À propos de Small Door
Small Door est une chaîne de cliniques vétérinaires par adhésion, conçue selon les standards des soins de santé humains, qui offre une expérience supérieure pour les animaux de compagnie, leurs parents et les vétérinaires. Nous avons repensé l’expérience vétérinaire grâce à une adhésion qui comprend des soins exceptionnels, la télémédecine 24/7 et des tarifs transparents, le tout offert avec une hospitalité moderne dans des espaces conçus par des experts du bien-être animal.
Nous avons ouvert notre établissement phare dans le West Village à Manhattan en 2020, suivi de plusieurs cliniques à New York et à Brooklyn. Small Door poursuit sa croissance dans le nord-est des États-Unis, notamment à Boston et à Washington, DC.
Il s’agit de la cinquième entreprise à laquelle les fondateurs de Small Door participent. Pour bâtir Small Door, ils se sont associés à des personnes ayant contribué à créer des expériences consommateurs emblématiques comme Warby Parker et Sweetgreen, ainsi qu’à des innovateurs du secteur de la santé comme One Medical, CityMD et Flatiron Health. Small Door a levé des fonds auprès de Lerer Hippeau, Primary Ventures, Brand Foundry, Toba Capital et Pentland Group. L’équipe de direction élargie possède de l’expérience chez Casper, One Medical, Soulcycle, Warby Parker, Sweetgreen, Peloton, Gilt Groupe, Lightspeed et Outbrain.
Le développeur Full-Stack relèvera directement du VP Data & Technology et travaillera en étroite collaboration avec les équipes croissance, design et gestion de produit. Le poste est basé à Montréal.
Nous recherchons un développeur Full Stack Senior titulaire d’un baccalauréat en informatique, en technologies de l’information ou dans un domaine connexe, ainsi que d’au moins 5 ans d’expérience professionnelle pertinente. Le candidat idéal démontrera une excellente maîtrise des frameworks front-end modernes tels que ReactJS, ainsi qu’une solide expérience avec des langages back-end comme Ruby ou Python. Une forte préférence sera accordée aux candidats ayant une expertise en Ruby on Rails.
Les compétences relationnelles sont essentielles pour ce poste. Nous recherchons une personne possédant d’excellentes compétences en communication, à l’oral comme à l’écrit, afin de collaborer efficacement avec des équipes multidisciplinaires. La capacité à encadrer des développeurs juniors et à fournir des orientations techniques est fortement appréciée.
Une maîtrise de l’anglais est requise, car les clients et partenaires que nous soutenons sont situés à l’extérieur du Québec et nécessitent une communication régulière en anglais.
De solides compétences en résolution de problèmes, ainsi qu’une approche proactive, sont essentielles pour diagnostiquer et résoudre des problèmes à travers l’ensemble de la pile applicative.
Ce que vous ferez
Devenir un expert de nos systèmes techniques
Collaborer avec notre équipe pour définir ce que devrait être l’expérience vétérinaire idéale et comment la technologie peut l’améliorer
Contribuer à la planification, à l’exécution et à la mise en production de projets techniques
Orienter les décisions techniques concernant l’infrastructure et l’architecture
Trouver le bon équilibre entre rapidité d’exécution et amélioration de l’opérabilité et de la scalabilité des systèmes que nous construisons
Développer de nouvelles fonctionnalités pour nos applications web et mobiles afin d’améliorer l’expérience de nos membres
Collaborer étroitement avec les équipes produit, croissance, opérations et autres partenaires internes
Qui vous-êtes
Un minimum de 5 ans d'expérience pertinente en tant que développeur Full Stack. (Préférence pour les startups et les environnements à rythme rapide). Un baccalauréat en informatique, en technologie de l'information ou dans un domaine connexe est un plus.
Expérience avérée en tant que développeur Full Stack utilisant des frameworks frontaux modernes (par exemple, ReactJS, NextJS) et des frameworks back-end (par exemple, Ruby on Rails, Django, Laravel). Forte préférence pour ReactJS et Ruby on Rails.
Expertise en JavaScript, CSS, HTML, et maîtrise des langages back-end tels que Python ou Ruby.
Compréhension solide des modèles de conception Modèle-Vue-Contrôleur (MVC) pour la construction d'applications web maintenables et évolutives.
Expérience avec des frameworks de test pour garantir la qualité du code et la stabilité de l'application.
Familiarité avec les outils de débogage basés sur le navigateur et les logiciels de test de performance pour optimiser l'expérience utilisateur.
Compétences exceptionnelles en résolution de problèmes avec la capacité de diagnostiquer et de résoudre des problèmes sur l'ensemble de la pile d'applications, y compris le front-end, le back-end et les microservices.
Compétences solides pour organiser, prioriser et livrer des projets de manière efficace.
Expérience dans le débogage et la résolution de problèmes au sein d'une architecture de microservices.
Ce que vous obtiendrez
Salaire compétitif
Participation au capital (equity)
Assurances santé, dentaires et vision
Possibilités d’évolution et de mobilité interne
Congés payés généreux, congé parental et jours fériés d’entreprise
Soins vétérinaires à tarif réduit pour vos animaux de compagnie
De nombreuses opportunités de développement professionnel
L’occasion d’avoir un impact concret sur les personnes autour de vous
Une équipe collaborative qui incarne nos valeurs et se soutient mutuellement
Joignez Small Door!
Small Door est une société à but lucratif et une entreprise certifiée B Corp. Nous nous engageons à créer un lieu de travail diversifié, inclusif et équitable. Nous cherchons à construire une culture où les employés peuvent être les plus complets et où leurs contributions individuelles sont appréciées.
Les personnes qui sont queer, trans, non-binaires, noires, autochtones, de couleur, handicapées, parents, qui ont été touchées par le système, sont des immigrants et toutes celles qui ont subi une oppression systémique et/ou sont sous-représentées dans l’industrie sont invitées à postuler.
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Small Door is proudly committed to creating a diverse, inclusive and equitable workplace. We encourage qualified applicants of every background, ability, and life experience to apply to appropriate employment opportunities.
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