Job Description:ResponsibilitiesLead the design and implementation of the new platform architecture — from legacy systems to modern stacksBuild and integrate AI-powered features into the core productCollaborate directly with leadership on architecture decisions, technical priorities, and product roadmapSet code standards, review practices, and engineering culture on a small teamOwn integrations with external APIs and third-party systemsMaintain business continuity during migration phases — zero downtime wherever possibleMust-HavesFull-stack proficiency: robust backend (Node.Js, Python, or equivalent) AND frontend (React or Vue) — requiredDemonstrable experience replatforming or migrating legacy systems to modern architecturesAI-first workflow: regular use of AI coding tools (Copilot, Cursor, Claude, etc.) in day-to-day developmentREST API design, relational database design, and SQLGit, CI/CD pipelines, and cloud environments (AWS or Azure)Ability to operate with genuine ownership in a lean, low-process teamNice to HaveExperience with the hospitality industry or B2B SaaS productsMicroservices or event-driven architecture experienceFamiliarity with observability tooling: Datadog, Sentry, or equivalentHands-on experience with LLM APIs (OpenAI, Anthropic, etc.) or AI agents in productionTechnical English sufficient for documentation and corporate team communicationWho This Is NOT ForJunior or early-career developers — this role requires genuine mid-senior depthSpecialists: pure frontend engineers, pure backend engineers,



or pure data engineersCandidates who haven’t shipped production code recently or who rely on heavy team scaffoldingAnyone who views AI coding tools as a threat rather than a multiplierBusiness Unit:AvanceScheduled Weekly Hours:40Number of Openings Available:1Worker Type:RegularMore About Jonas Software:Jonas Software is a leading provider of enterprise management software solutions, serving a wide range of vertical markets including hospitality, healthcare, construction, education, personal care, fitness, leisure, moving and legal services, to name a few. Within these markets, Jonas is comprised of over 65 distinct brands, each a respected leader in its domain.Jonas’ vision is to be the branded global leader across these verticals and to be recognized by customers and industry stakeholders as the trusted provider of “Software for Life.” We are committed to technology, product innovation, quality, and exceptional customer service.Jonas Software supports over 60,000 customers in more than 30 countries. We employ over 6,000 skilled professionals, including industry experts and technology specialists. Across our broader network, we support a global workforce of more than 30,000 employees.Headquartered in Canada, Jonas Software has a global footprint with offices around the world. We’re a 100% owned subsidiary of Constellation Software Inc., based in Toronto, publicly listed on the TSX (CSU.TO), and a member of the S&P;/TSX 60 Index.#J-18808-Ljbffr

📌 Full Stack Developer (Toronto)
🏢 Vesta Software Group
📍 Toronto