Senior Full Stack Developer

## About the role The Senior Full stack Developer is a key contributor responsible for delivering high-quality, scalable software across the frontend and backend. This role involves building performant UIs, designing robust APIs, modeling data flows, and integrating services that support complex product features. Working closely with product, design, and engineering teams, the developer drives architecture decisions, leads technical implementation, and mentors others on best practices. They balance hands-on execution with systems thinking, consistently improving code quality, performance, and developer experience. The ideal candidate pairs deep technical skill with a strong product mindset and a focus on reliability, usability, and long-term maintainability. You show up like an owner. You want to value the equity and solve for others. ## About the company We're building Toronto's dedicated platform for home management to empower the city's homeowners and to better connect our neighbours and the local Pros they trust. Our focus is purely on the GTA market right now. We build our property base one street at a time, and our marketplaces one neighbourhood at a time. We're a local tech company in every sense of the word. We start with integrity, neighbourhood values, and competitive craftsmanship, and we build our business on neighbourhood trust. We believe in holistic solutions to consumer problems. We believe in high-trust hyperlocal communities. We believe in low commission marketplaces that the best Pros can actually say yes to. And we believe that tech companies should go to work for the locally loved Pros of the GTA rather than trying to get those Pros to effectively work for the tech company. We believe that it's good business to care. We believe that this problem space deserves a form of digital transformation that the people and Pros of Toronto can trust and invest in. If this resonates with you and you're at a point in your career and your life where you want to do something uniquely difficult for a meaningful outcome, you've found your next home. ## Team values ❤ Integrity – We prioritize integrity over comfort, convenience, and the short-cuts of success that drive metrics but undermine trust. ❤ Trust – We cannot win unless we win on trust. Trust is hard to earn and easy to lose. We need to be built for it in our DNA. ❤ Competitiveness – We believe that competitiveness is a critical complement to integrity and trust. If we're not our customer's best choice, then we're wasting their time. We believe in the power of healthy competitive markets, and we believe we need to be uniquely competitive to win in this space. We have too much respect for the other players in this space to expect things to be easy. That's a good thing. ❤ Empowerment – Any win we achieve needs to be first and foremost a win that we deliver to others, starting with our customers, and their long term best interests. ## What you will be doing ### Technical Execution & Ownership - Architect and implement scalable, maintainable, and observable fullstack applications using modern JavaScript/TypeScript ecosystems (React, Next.js, Node.js, Express/Koa, NestJS) - Design and optimize relational (PostgreSQL, MySQL) and non-relational (MongoDB, DynamoDB, Redis) data models to support transactional consistency, efficient querying, and multi-tenancy - Build robust API layers (REST/GraphQL/gRPC), incorporating input validation, rate limiting, auth middleware, pagination, and real-time event streaming via WebSockets or SSE - Construct flexible state management patterns (Redux Toolkit, Zustand, React Query) across web applications for efficient data hydration, caching, and optimistic UI - Implement progressive rendering strategies (SSR, ISR, SSG) to balance performance and SEO within frontend frameworks like Next.js - Manage frontend build tooling and transpilation (Webpack, Vite, Babel, SWC), including module federation, code-splitting, and lazy loading optimizations - Develop backend services with clean architecture principles (domain-driven design, hexagonal ports/adapters), enforcing separation of concerns and enabling high testability - Instrument frontend and backend code with structured logging (Pino, Winston), distributed tracing (OpenTelemetry, Honeycomb), and metrics (Prometheus, StatsD) for proactive debugging and performance tuning - Build automated deployment pipelines for both client and server with CI/CD tools (GitHub Actions, CircleCI, ArgoCD), including staging environments, ephemeral previews, and rollback mechanisms - Integrate cloud-native capabilities like object storage (S3), job queues, messaging systems (Kafka, NATS), and container orchestration (Docker, Kubernetes) ### Decision-Making & Collaboration - Make full stack architectural decisions balancing developer productivity, system scalability, and product roadmap velocity - Collaborate with product, design, and QA to define technical requirements and delivery plans, including accessibility, internationalization, and performance - Align frontend and backend concerns via shared contracts (e.g. GraphQL schema, OpenAPI