About Us Leona is on a mission to empower everyone to take the best care of themselves, their patients, and their loved ones. We have an ambitious goal: to transform the way the world interacts with healthcare. We strongly believe that where you live shouldnât impact your access to high-quality care. For patients, it should feel empowering, and unintimidating, to proactively take care of yourself and your loved ones. For doctors, we want to enable you to focus on what matters most, delivering the best possible care, by providing better tooling, decreasing the administrative burden, and helping you to prioritize based on urgency and complexity while saving time and improving clinician quality of life. We are reimagining how doctors provide care for their patients in an AI-first world. Our first product is a platform that streamlines Doctor-Patient communication via WhatsApp. Leona is designed to act as a doctorâs AI clinical assistant, automating and delegating non-urgent tasks, while allowing patients the convenience of reaching their doctors 24/7 via WhatsApp.With bases in San Francisco and Mexico City, our diverse team brings together years of experience scaling tech companies like Rappi, Uber, Modern Fertility and Wonder throughout the US and Latin America. Leona is backed by top-tier investors such as General Catalyst, and Accel, as well as an incredible list of angel investors including the founders of Nubank, Rappi, Maven Clinic, and other successful technology companies.If you are hungry to learn and build 0-1 at an early stage startup, while rolling up your sleeves to make some magic, this role might be the perfect fit for you!Tech challengeWeâre looking for an experienced software engineer to help us shape and scale Leona. Leona is reimagining how the world interacts with care â starting with doctor-patient communication on WhatsApp. We are building an an AI-powered platform that automates clinical workflows to empower doctors to save time, reduce burnout, and deliver better, more personalized care at scale. Patients today expect round-the-clock access to personalized care, but doctors are stuck with outdated, fragmented tools; Leona bridges that gap with intelligent automation and seamless messaging. If youâre driven by tough engineering and user experience challenges, love wearing many hats, and thrive in taking products from 0 to 1, this role is for you. ResponsibilitiesTake full ownership of projects that are both technically complex and business-criticalCollaborate closely with design, operations, data science, and medical professionals to deliver impactful product experiencesWork side-by-side with our CTO to evolve our engineering strategy and improve how we buildHelp shape technical direction and product decisions as a core member of a small, high-performing teamRequirements6+ years of relevant experience, with a strong track record of building and scaling complex software systems (startup experience is a plus!)Deep expertise in backend development using modern technologies (we use Python on the backend; clients are built in Flutter), and familiarity with managing production-scale infrastructure within AWSComfortable working across the stack and owning projects end-to-end â from idea to launch to scaleStrong understanding of modern AI technologies â you stay current with the tooling landscape and confidently apply AI/ML to real-world problemsExcellent communication and collaboration skillsA builderâs mindset and love for creating things that make a differenceWeâd love to work with someone who:Thrives in ambiguity and fast-moving environmentsLoves collaborating with talented cross-functional teammatesIs energized by the challenges and opportunities of early-stage startupsIs mission-driven and passionate about improving health outcomesIs curious, resourceful, and always looking to innovateBonus points for:Experience in health tech or building communication tools (messaging, collaboration, etc.)Spanish fluencyPlease mention the word **SUCCES** and tag RMjQwMTo0OTAwOjFmM2Y6ZGVhNzphY2VlOmUzYTI6NTIzMjo2NjU0 when applying to show you read the job post completely (#RMjQwMTo0OTAwOjFmM2Y6ZGVhNzphY2VlOmUzYTI6NTIzMjo2NjU0). This is a beta feature to avoid spam applicants. Companies can search these words to find applicants that read this and see they're human.