Senior Frontend Engineer - React.js & React Native

About Clinvvo : Clinvvo is a fast-growing, profitable Swedish health-tech company building AI for healthcare, with a clinician-and-technologist team across Sweden and India (including IIT and IIM alumni and people from Meta and Adobe). We are trusted by 200+ hospitals and clinics across Sweden and Germany, and have just secured a $1.5M USD seed round from institutional investors in Europe to accelerate our expansion across Europe, India, the UK, and the US. The Role : You will build the web and mobile products that clinicians and patients use every day, across React.js (web) and React Native (mobile). This is a hands-on, high-ownership role - take initiative and drive execution from day one, own architecture and quality, and ship products that reach 200+ hospitals and clinics. What you'll do : - Lead in-house development and technical implementation across React Native (mobile) and React.js (web). - Turn product and business requirements into scalable, maintainable code. - Own and drive system-architecture decisions, ensuring performance, modularity, and efficiency. - Build cross-platform apps with shared codebases. - Collaborate with product, internal teams, and external stakeholders to align the tech roadmap with timelines. - Help build our engineering culture and, over time, mentor or grow a small team. What we're looking for : - 4+ years building production apps with React.js and React Native. - Strong proficiency in TypeScript. - Strong HTML, CSS, and Tailwind. - Experience building cross-platform apps with shared codebases. - Familiarity with AWS and secure, cloud-first deployments. - A self-directed builder who ships and owns quality end to end. Good to have : - Familiarity with GDPR, healthcare compliance, or HL7 / FHIR standards. - Angular exposure. - Experience mentoring or leading a small team. Why this role : - Build real products used by 200+ hospitals and clinics - your work reaches clinicians and patients directly. - High ownership : own architecture from day one, and grow a team as we scale. - A profitable, funded company (a fresh $1.5M seed) and a meaningful mission.