Senior Fullstack Engineer

Quo

About The Position

As a Senior Full Stack Engineer at OpenPhone, you will spend a majority of your time designing and delivering end-to-end product experiences that drive growth - from frontend interfaces to backend integrations. Beyond your technical work, you may also lead a small squad or initiative, collaborating closely with a Growth PM to rapidly prototype, experiment, and iterate. You might also spend time providing technical guidance, code reviews, and design, and delivering small/medium size experiments and features end-to-end across the stack. Potential areas of focus include: Partnering closely with a Growth PM to design and run experiments across the product surface area (e.g. onboarding flows, signup funnels, upgrade paths) that improve activation, conversion, and expansion. Owning end-to-end implementation of growth experiments and features, from frontend UX changes to backend wiring, instrumentation, and integrations, with a focus on speed, iteration, and clear business outcomes. Improving our attribution, analytics, and experimentation capabilities so we can trust our data, understand how customers find and use Quo, and confidently double down on the highest-impact opportunities. In any of these areas, you'll have the opportunity to tackle impactful challenges and help build product experiences and supporting systems that directly drive growth for a rapidly scaling business.

Requirements

Strong experience with Typescript across both frontend and backend, including React on the frontend and Node on the backend, or equivalent experience with similar technologies and a strong willingness to ramp up on our stack.
Comfortable working across the stack: you can implement product changes end-to-end, from UI through to APIs and data access, and you understand how your changes interact with existing systems and services.
You take ownership of your work and understand the importance of communication. You hold yourself to a high standard and help empower others to do the same, especially in fast-moving, experiment-driven environments.
You are intentional about how your work impacts customers, the business, and your teammates. You practice empathy, generosity, and thoughtfulness as you evaluate tradeoffs between speed, UX quality, technical soundness, and measurable outcomes.
You are curious. You seek to understand the 'why' behind growth, onboarding, and attribution problems so that you can better plan and build the 'how'. You support your teammates and customers through the continuous pursuit of knowledge and you're excited to learn from experiments and data.
Your code is a pleasure for your teammates to read and understand and you strive to ensure it is readable, testable, and maintainable. When working in the codebase, you leave things better than you found them, even when iterating quickly on MVPs and growth experiments.