Senior Full Stack Engineer (React | TypeScript | NestJS)

Description

Summary: Oowlish is seeking a Senior Full Stack Engineer to build and evolve patient-facing features across a healthcare platform, owning features end-to-end and contributing to architectural decisions. Highlights: 1. Collaborate with premier clients from the United States and Europe 2. Contribute to pioneering digital solutions 3. Opportunities for professional development and growth **Join Our Team** Oowlish, one of Latin America's rapidly expanding software development companies, is seeking experienced technology professionals to enhance our diverse and vibrant team. As a valued member of Oowlish, you will collaborate with premier clients from the United States and Europe, contributing to pioneering digital solutions. Our commitment to creating a nurturing work environment is recognized by our certification as a Great Place to Work, where you will have opportunities for professional development, growth, and a chance to make a significant international impact. We offer the convenience of remote work, allowing you to craft a work\-life balance that suits your personal and professional needs. We're looking for candidates who are passionate about technology, proficient in English, and excited to engage in remote collaboration for a worldwide presence.### **About the Role** We are looking for a **Senior Full Stack Engineer** to build and evolve patient\-facing features across a healthcare platform. This is a high\-impact, product\-focused role where you will own features end\-to\-end—from API design through polished UI—while contributing to architectural decisions and mentoring other engineers. You will work on real\-world workflows such as appointment booking, insurance verification, and patient portal experiences, building scalable and reliable systems that directly impact patient outcomes. ### **Key Responsibilities:** * Build and maintain full\-stack features using **Next.js, React, and NestJS** * Design and develop APIs with proper validation, error handling, and documentation * Create responsive and accessible user interfaces using **React, Tailwind CSS, and component libraries (Radix UI or similar)** * Own complex workflows such as appointment scheduling, patient portals, and integrations * Contribute to architecture decisions and establish best practices across the stack * Mentor engineers and provide technical guidance through code reviews * Integrate with third\-party systems (EHRs, payment providers, external APIs) * Ensure system reliability through testing, monitoring, and performance optimization * Maintain high standards for data handling, including **HIPAA compliance** ### **Must have:** * 5\+ years of experience in **full\-stack software engineering** * Strong proficiency in **TypeScript across frontend and backend** * Strong experience with **React (Next.js preferred)** * Experience with **Node.js backend frameworks (NestJS, Express, or similar)** * Solid experience with **PostgreSQL and ORMs (TypeORM or similar)** * Experience building and shipping **complex user\-facing features end\-to\-end** * Experience with **form handling (React Hook Form, Formik) and validation (Zod, Yup)** * Experience mentoring engineers or leading technical initiatives * Strong understanding of building scalable, reliable systems ### **Nice to Have:** * Experience in **healthcare environments (EHR integrations, HIPAA compliance)** * Experience with **state management tools (Redux, React Query)** * Experience with **component libraries (Radix UI, shadcn)** * Experience with **background job systems (Bull, BullMQ, Sidekiq)** * Experience integrating with **Salesforce or external enterprise systems** * Experience with **feature flagging and gradual rollouts** * Familiarity with **observability tools (Datadog, analytics platforms)** **Benefits \& Perks:** Home office; Competitive compensation based on experience; Career plans to allow for extensive growth in the company; International Projects; Oowlish English Program (Technical and Conversational); Oowlish Fitness with Total Pass; Games and Competitions;