# Senior Software Engineer - Company: [Marble Ai]() - Location: Toronto - Remote: Yes - Team: Engineering - Employment type: Full Time - Posted: April 7, 2026 ## Job description ## About Us Marble is building an AI-powered tax assistant and preparation platform that transforms how accounting firms and their clients handle tax season. We’re targeting the pain points of mid-to-large size accounting firms with intelligent tools designed to streamline complex tax workflows. We’re early stage, highly collaborative, and deeply focused on solving real, high-impact problems for our customers. ## About the Role We're searching for a talented and driven Senior Software Engineer to help define and build the foundation of our AI-first tax platform. This is a high-impact role for someone who wants ownership over architecture, technical direction, and core product decisions. You will be working across our user-facing apps and backend services to build a robust, intelligent, and intuitive user experience that will redefine tax preparation. If you thrive in dynamic environments and are passionate about leveraging AI tools to solve real-world problems, we want to hear from you. ## What You’ll Do * Be at the cutting-edge of building the AI-first tax prep platform of the future * Lead design and implementation of core pieces of our product architecture * Build and scale user-facing experiences across the stack * Be comfortable operating across our entire stack and product lifecycle end-to-end * Mentor engineers and raise the bar on execution as you contribute to best practices ## What We’re Looking For * You have significant experience building and scaling production web applications * You have an ownership mindset and strong convictions of what it means to build a great product * You love being focused on solving customer problems and delivering the most value to them ## Bonus Points * Working with AI products and tools * Working with ETL pipelines or managing data at scale * Working at fast-paced startups with product-led growth * Experience in the tax, accounting, or fintech space ## Tech we use * **Frontend**: React, Remix (React-Router) * **Backend**: Typescript, Node.js (Fastify), Postgres, Weaviate * **Infra**: AWS, Kubernetes, Terraform, Airflow ## Why Join Us? * Build the tax prep platform of the future by making sense of vast amounts of tax data * Work at the forefront of applying the latest AI strategies to solve real, high-value problems * Build from 0 -> 1 alongside a team that values autonomy, pragmatism, and rewards self-initiative * Highly competitive compensation, equity, and benefits ## Apply [Apply on Marble Ai]() Canonical job page: