Full Stack Engineer
Grey Matter
Staff Software Engineer, Full Stack & Tech Lead — New Billing At HealthieThis isn't a role for "just ship the ticket" engineers. As a Staff Software Engineer, Full Stack & Tech Lead — New Billing at Healthie, you'll lead the architecture and development of the systems that power how providers get paid.Billing sits at the core of Healthie's platform — touching providers, patients, payments, reporting, and compliance — and this role will help define how that foundation scales as we grow.You'll operate as the technical leader for the new billing initiative, designing and building resilient full-stack systems in our Ruby on Rails monolith. Your work will span backend services, data models, GraphQL APIs, and frontend experiences (React/TypeScript) to ship complete features across the stack.At the Staff level, you won't just build systems — you'll set technical direction, guide engineering decisions, and mentor other engineers while partnering closely with Product and Design to deliver a billing platform that is reliable, scalable, and built for the future of digital healthcare.At Healthie, we are AI-enabled and AI-accelerated in how we build. We are looking for team members who actively leverage AI-powered development tools, embrace automation, and help teams adopt modern, AI-assisted engineering practices to increase velocity and quality.About YouProven & Technical: 8+ years of experience building and shipping production systems across the full stack. Strong expertise in modern web technologies such as Ruby, React, TypeScript, and GraphQL, along with experience designing backend services, APIs, and data models that support complex, high-scale applications.Systems Thinker: You think beyond individual features and consider how systems interact across services, data layers, and user experiences. You are comfortable designing scalable architectures and solving complex technical problems that span multiple parts of the platform.Quality Obsessed: You believe reliability and correctness are critical, especially in systems that power financial workflows. You write clean, maintainable code and ensure it is supported by thoughtful testing and observability.Technical Leader: You naturally lead technical initiatives, guide architectural decisions, and help teams navigate complex engineering challenges. You raise the bar for engineering quality through design reviews, mentorship, and thoughtful collaboration.Builder & Collaborator: You enjoy partnering closely with product managers, designers, and other engineers to translate complex requirements into well-designed systems and intuitive user experiences.Mission-Driven: You're excited by the opportunity to improve healthcare through technology and help build infrastructure that enables providers to deliver better care while running sustainable practices.Values-Aligned: You embody Healthie's values of Respect, Reliability, and Resilience, and thrive in a collaborative, remote-first environment where ownership, curiosity, and teamwork are valued.Details, DetailsThis is a full-time, hybrid position within our NYC office.U.S. work authorization is required, Healthie does not provide sponsorship.Interview ProcessQuick chat with someone from our Talent team (15 minutes)Interview with Micah, Engineering Manager (30 minutes)Complete our Pair Coding Interview (2, one hour sessions)Meet with Cavan, CTO + Co-founder (20 minutes) & Jonathan, VP of Engineering (30 minutes)Reference ChecksLearn more at gethealthie.com/careersHealthie participates in e-verifyHealthie is committed to equal employment opportunity. All qualified applicants will receive consideration for employment without regard to and will not be discriminated against based on age, race, gender, color, religion, national origin, sexual orientation, gender identity, veteran status, disability or any other protected category. We're proud to be building a diverse and inclusive environment that encourages collaboration, creativity, and growth. Whatever your background, please apply if this is a role that would make you excited to come into work every day.
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