Software Engineer, Full-Stack (Superhuman Mail - Canada)

As a Full‑Stack Engineer on our Client Infrastructure team, you will: Design, build, and maintain the desktop application while keeping resource usage (CPU, memory, threads) minimal and predictable. Monitor, profile, and analyze runtime performance (rendering, memory leaks, blocking operations) and implement optimizations to avoid regressions. Advocate and evolve the frontend architecture (modularity, dependency boundaries, layering, decoupling) to ensure scalability as features grow. Define, enforce, and evangelize best practices in code quality (linting, style guides, code reviews, static analysis, automated checks). Develop robust error‑handling, crash‑reporting, fallback mechanisms, and recovery paths for critical failures inside the UI. Work cross‑functionally with backend, QA, and infrastructure teams to define interfaces, API contracts, versioning, and compatibility across releases. Instrument and maintain tooling (metrics, logging, telemetry) to gain visibility into app health, user flows, and regressions. Mentor other frontend engineers on performance, reliability, and architecture decisions; drive continuous improvement in the app’s frontend codebase. Technologies you will be using: React, Typescript, Electron, Google Cloud. Other technologies in our stack: Golang, Postgres, Swift, Kotlin. Qualifications 5+ years of professional full‑stack web development experience, working from the database to the UI. Deep understanding of browser JavaScript (including the DOM and platform APIs). A passion for AI and its application to work and user experiences. Strong commitment to producing high‑quality, reliable code. Effective asynchronous communication skills across Slack, Notion, email, and other written media. Ownership mindset: responsible for own outcomes and company outcomes.