Senior Fullstack Engineer

Copilot Money

Senior Fullstack Engineer at Copilot Money, developing features for a personal finance app. Collaborating with a high-ownership engineering team on full stack solutions in a hybrid environment.

Posted 5/28/2026full-timeNew York City • New York • 🇺🇸 United StatesSenior💰 $185,000 - $215,000 per yearWebsite

Tech Stack

Tools & technologies

AWSCloudFirebaseGoogle Cloud PlatformJavaScriptNode.jsReactTypeScript

About the role

Key responsibilities & impact

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.

Requirements

What you’ll need

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.

Benefits

Comp & perks

Equity in the company
Health, Dental & Vision Insurance (company pays 100% premium for employee)
401k matching up to 4%
Home Office Setup, and monthly Internet reimbursement (up to $80/month)
Wellness Reimbursement ($100/month)
4 weeks of PTO. After 2 years in the company you get 5 extra vacation days, and 5 more after 4 years.
Annual company retreats

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

Node.jsReactTypeScriptAPI designdata modelingscalable servicescloud computingsystem designCI/CDreal-time systems

Soft Skills

clear communicationteam playertime managementproblem-solvingadaptabilitycollaborationtechnical tradeoffsproactive risk managementcode qualityoperational reliability