Location Montreal Employment Type Full time Department Headquarters Product and Technology 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. 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, and a minimum of 5 years of proven experience. 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; we’re looking for someone with excellent verbal and written communication skills, the ability to mentor junior developers, and a proactive mindset to diagnose and resolve issues across the application stack. What you’ll do Become an expert on our technical systems Collaborate with our team to define the ideal veterinary experience and how technology can enhance it Help plan, execute, and release 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 the member experience Collaborate cross‑functionally with product, growth, operations and more Who you are Minimum of 5 years of relevant experience as a Full‑Stack Developer (startups and fast‑paced environments preferred); a Bachelor’s degree 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 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 agentic coding tools (e.g., Claude Code, GitHub Copilot, Cursor) Familiarity with browser‑based debugging tools and performance testing software for optimizing user experience Strong troubleshooting skills to diagnose and resolve issues across front‑end and back‑end systems 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 and 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 Small Door is a profitable company and a certified B Corp. We are committed to creating a diverse, inclusive and equitable workplace. We encourage qualified applicants of every background, ability and life experience to apply for appropriate opportunities. We invite individuals who are queer, trans, non‑binary, Black, Indigenous, people of colour, people with disabilities, parents, immigrants or who have experienced systemic oppression and/or are under‑represented in the industry to apply. 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. #J-18808-Ljbffr