> Markdown version of [/jobs/ext/4636633-senior-fullstack-engineer](https://www.wearedevelopers.com/jobs/ext/4636633-senior-fullstack-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Fullstack Engineer - **Company:** Copilot Money, Inc. - **Location:** New York, NY, United States (Remote available) - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Artificial Intelligence, Amazon Web Services, Software Quality, Continuous Integration, Cursor, Web Servers, Mobile Application Software, Node.Js, Microsoft Copilot, Software Engineering, TypeScript, Web Applications, Real Time Systems, ReactJS, Technical Debt, Firebase, AI Coding Agents, Backend, Cloudflare, Claude, Google Gemini - **Published:** November 8, 2026 - **Apply:** https://www.juju.com/job/28_25303_7a783d6e1310e381de520e6af929ea2e ## About the Role * 6+ years of professional software engineering experience with significant ownership of shipped products. * Strong experience building web apps, with production work in Node.js, React, and TypeScript. * Strong backend engineering skills, including designing APIs, data models, and scalable services. * Experience with a major cloud provider (GCP, Cloudflare, or AWS). * A bonus if you have experience with agentic interfaces/tools, Progress Web Apps, Firebase, real-time systems, Mobile apps, CI/CD systems. * Comfortable working across the full stack with minimal hand-offs between client and server work. * Hands-on, day-to-day user of AI coding tools (e.g. Claude, Cursor, Gemini) - not just curious about AI, but actively integrating it into how you build. * Strong system design fundamentals and comfort making technical tradeoffs under ambiguity. * Clear communicator who works well with product, design, and fellow engineers. * Team player who can manage time independently. * Based in NYC., * A product people love: Copilot users are extremely engaged with the app and are sharing it with their friends and family. ## Description As a Senior Fullstack Engineer at Copilot Money, you'll be a key contributor on a small, high-ownership engineering team building one of the most trusted personal finance apps in the market. You'll work across the full stack on features that matter - bringing strong technical judgment, a bias for shipping, and a genuine enthusiasm for using AI tools as part of how you build., * Own end-to-end delivery of product features spanning web client and backend systems, from technical design through launch and iteration. * Design and implement backend APIs, data models, and services that power Copilot Money's core financial features. * Partner closely with Product and Design in a build-as-you-plan process - comfortable moving forward with incomplete inputs and refining solutions through real usage. * Contribute to architecture decisions and raise the bar for code quality, testing, and operational reliability within your team. * Actively use AI tools and models as part of your daily development workflow. * Identify and address technical debt and risks proactively, with a pragmatic approach to balancing speed and maintainability.