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HappyCo is a company where people can grow their careers and work with like minded people, with no egos or politics. HappyCo is values driven and offers a flexible, supportive culture. Join HappyCo and Make Work Happy!The Position HappyCo is hiring aSenior Engineer, Platformto help scale the foundational systems that power our products and integrations. This role focuses on improving the reliability, performance, and extensibility of the platform while accelerating delivery of roadmap-critical initiatives.The position plays a key role in three strategic initiatives:Expand our Property Graph to unlock new product capabilitiesIntegration reliability and customer visibility to support mid-market adoption and retentionPlugin and API enablement to accelerate ecosystem expansionThis engineer will operate as ahands‑on senior individual contributor, owning delivery across platform components including integrations, APIs, and extensibility surfaces. The role requires strong technical judgment, cross-team collaboration, and a focus on measurable production outcomes.What you'll do (day to day) Platform Architecture & DevelopmentDesign, implement, and maintain scalable platform services and APIsLead delivery of roadmap‑critical platform capabilities including Property Graph and integration surfacesEvaluate architectural trade‑offs to ensure reliability, scalability, and extensibilityIntegration & Ecosystem EnablementBuild and improve APIs and plugin frameworks enabling partner integrationsEnsure integrations operate reliably across customer environmentsImprove visibility and monitoring across integration workflowsReliability, Observability & PerformanceImprove platform reliability, observability, and application performanceUse production telemetry and monitoring data to diagnose and resolve performance issuesReduce operational overhead and improve system resilienceCross-Team CollaborationWork closely with Product Engineering leads and stakeholders to deliver platform capabilitiesSupport cross‑team execution for growth and retention initiativesCollaborate with product leadership and engineering stakeholdersProduction OwnershipParticipate in incident response and root‑cause analysisImplement preventative improvements based on operational learningsEnsure safe rollouts and strong production outcomesWhat we're looking for Required Qualifications6+ years of professional software engineering experienceTechnologies used: Golang, Ruby on Rails & RustStrong experience building platform services, APIs,



or infrastructure systemsExperience improving system reliability, observability, and performanceDemonstrated experience working on distributed systems or complex backend platformsAbility to own problems from design through production outcomesStrong collaboration skills working across engineering and product teamsPreferred QualificationsExperience designing graph-based data models or complex domain modelingExperience building developer platforms, plugin frameworks, or extensibility systemsBackground working with integration-heavy SaaS platformsExperience improving operability and observability of production systemsFamiliarity with cloud-native architecture and distributed systemsHow we measure success First 90 DaysContribute to at least one roadmap‑critical platform milestoneParticipate in incident response with documented prevention improvementsDeliver one measurable application performance improvementLonger‑Term SuccessPlatform roadmap milestones land with lower execution riskFewer reliability regressions across key integration and API pathsFaster cross‑team delivery of growth and retention initiativesClear improvements in system performance, observability, and reliabilityTimeline Expectations First 30 daysLearn the current platform architecture, core service boundaries, and deployment/runtime modelBuild context on high‑impact integration pathways, API surfaces, and reliability pain pointsGet productive with our observability patterns and incident workflowFirst 60 daysOwn and ship at least one scoped improvement to an API or integration surface with measurable impact on reliability, throughput, or operabilityImprove instrumentation and alerting for an existing platform workflowFirst 90 daysContribute to at least one roadmap‑critical platform milestoneParticipate in at least one incident with documented prevention follow‑throughDeliver one measurable application performance improvementLead a meaningful cross‑team implementation slice in platform scope and ship iterativelyFirst 12 monthsPlatform milestones land with lower execution risk; fewer reliability regressions on key integration and API pathsFaster cross‑team delivery of growth and retention prioritiesClear improvements in system performance, observability, and reliabilityRaised bar on operational quality through documentation, standards, and collaborative executionAbout HappyCo Founded in 2011, HappyCo (happy.Co) builds mobile and cloud solutions to enable real‑time property data. Our flagship product suite 'Happy Property’ has more than 5 million units on its platform.We’re everyday people with a shared purpose — improving the lives of others. Our team is made up of thinkers, talkers, planners, makers, builders and everything in between. Together, we’re turning our passions into happier communities!When customers use our software, their communities get stronger. Our tools empower everyone in multifamily property management to improve their operations and maximize returns, which means they’re building better experiences for their residents. Learn more about our Product Vision here!Our HappyCo Culture & Values HappyCo strives to build better communities. So naturally, we are dedicated to making our own community an enjoyable place that lets us do our best work. We’re devoted to building an inclusive, supportive culture that empowers each HappyCo’er to succeed and grow. To learn more about our culture, check out our Glassdoor page and our careers page!HappyCo’s culture is driven by our core values of Make Happiness, Better Together, Get Valuable Sh*t Done, Customer Obsessed and Kaizen - sounds great, right, but what does this mean for you?We believe in supporting people to do their best work and thrive, and building a diverse, equitable, and inclusive company is core to our mission. Our goal is to ensure that HappyCo upholds an inclusive environment where all people feel that they are equally respected and valued, whether they are applying for an open position or working at the company. We welcome applicants of any educational background, gender identity and expression, sexual orientation, religion, ethnicity, age, citizenship, socioeconomic status, disability, and veteran status. HappyCo is also committed to providing reasonable accommodations for qualified individuals with disabilities and disabled veterans in our job application procedures.A note to Recruitment Agencies: Please don’t reach out to us about our roles — we’ve got it covered. We don’t accept unsolicited agency resumes and HappyCo is not responsible for any fees related to unsolicited resumes.#J-18808-Ljbffr

Apply on Kit Job: kitjob.ca/job/2g8z0i

📌 Senior Engineer, Platform (Toronto)
🏢 HappyCo
📍 Toronto