Rythm

**ABOUT US** Rythm is the fastest-growing lab in America. We redefined at-home testing with the world’s easiest blood test and created a culture around monthly lab testing from home. We’ve processed millions of tests across all 50 states, and we do everything in-house, from sample testing and logistics to code, marketing, and design. That vertical integration gives us the speed, control, and creativity to shape the future of health and wellness. **THE ROLE** Behind every Rythm member experience is a network of systems connecting our product, laboratory, logistics, and operations. As a Staff Backend Engineer, you’ll help build and strengthen that foundation. You’ll take ownership of complex projects from the first technical decisions through launch and whatever comes next. Since we’re a small team, you’ll work directly with people across the business and have a clear view of how the things you build affect our members and the teams supporting them. We’re looking for someone who can look at a messy problem, figure out what actually matters, and build a solution that works today without creating headaches down the road. You’ll have a real voice in our backend architecture and engineering practices, but this is still very much a hands-on role. You’ll spend most of your time designing systems, writing code, and improving the platform alongside the rest of the team. **WHAT YOU’LL DO** • Design, build, and own reliable backend services and APIs that support Rythm's products and internal operations. • Own complex projects from technical discovery and architecture through implementation, launch and iteration. • Build systems that connect member experiences with laboratory, logistics, billing, analytics, and other operational workflows. • Make architectural decisions that balance delivery speed, maintainability, performance, security, and scale. • Improve service reliability through thoughtful testing, observability, incident response, and operational practices. • Partner with mobile and product engineers to define clear contracts, scalable data flows, and dependable integrations. • Identify technical risks and reduce unnecessary complexity across the platform. • Help establish and evolve development standards and tools as the engineering team continues to grow. • Use modern development tools, including AI-assisted workflows, to increase engineering quality and speed. **WHAT WE’RE LOOKING FOR** • Extensive experience designing, building and owning backend systems at scale. • A proven track record of owning complex, cross-functional initiatives. • Experience integrating internal systems and third-party platforms across complex business workflows. • Strong understanding of testing, observability, performance, security, and production operations. • The ability to move between long-term architecture and immediate delivery needs. • Strong communication skills and the ability to work effectively with both technical and nontechnical partners. • A hands-on mindset; you enjoy building and want to remain close to the technical work. • High ownership, low ego, and comfort operating in a fast-moving environment with evolving priorities. • Previous time spent within healthcare, consumer health, or direct to consumer businesses is preferred. • A strong understanding of regulated products and navigating sensitive data is preferred. **WHAT’S IN IT FOR YOU?** Rythm Health offers a benefits package which includes: • A highly competitive base salary. • Meaningful equity aligned with the scope and impact of your role. • A monthly Rythm membership with full access to at-home blood testing and personalized health insights. • High ownership and visibility from day one, with the ability to make a meaningful impact. • The chance to help shape the future of personalized health and preventative care. • Flexible, remote-first work environment. • A generous paid time off policy. • 401(k). • Multiple healthcare plan options, with select plans fully covered by Rythm. • A small, collaborative, mission-driven team that moves quickly and values great ideas regardless of title.