Senior Software Engineer (Full Stack | Node.js & React | AI Focus)

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 help scale a mission-critical platform used by organizations across multiple sectors, including nonprofits, government, and regulated environments. This is a foundational role where you will take ownership across the full stack — from mobile to backend systems — and contribute directly to architecture, performance, and product evolution. You won’t just execute tickets; you will help shape how the platform grows and scales in production. You will work in a fast-paced, remote-first environment alongside product and engineering leadership, building real features used by real users. This role requires strong technical ownership, clear communication, and the ability to operate effectively in ambiguous situations. We are looking for engineers who move fast, think critically, and take responsibility for delivering high-quality solutions. 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; You can also apply here: Website: https://www.oowlish.com/work-with-us/ LinkedIn: https://www.linkedin.com/company/oowlish/jobs/ Instagram: https://www.instagram.com/oowlishtechnology/ country: BR all locations: [Brasília, Federal District, Brazil Greater Porto Alegre Greater Curitiba Salvador, Bahia Recife, Pernambuco, Brazil Belo Horizonte, Minas Gerais, Brazil] commitment: Remote department: IT Operations location: Brasília, Federal District, Brazil team: Javascript Engineer Key Responsibilities:: Build and maintain full-stack applications using TypeScript, Node.js, and React Design and develop scalable backend services and APIs Work with PostgreSQL for data modeling and query optimization Develop and deploy cloud-based solutions using AWS (ECS preferred) Own features end-to-end (design → development → production) Collaborate with Product and cross-functional teams to deliver impactful solutions Improve system performance, reliability, and developer experience Use AI tools to accelerate development and enhance workflows Must have:: 5+ years of experience in full-stack software engineering Strong experience with TypeScript, Node.js, and React Experience building and shipping complex features in production systems Proven track record of owning and delivering technical initiatives end-to-end Experience contributing to 0 → 1 product development Experience working with PostgreSQL or similar relational databases Hands-on experience with cloud environments (AWS preferred, ECS is a plus) Proficiency using AI tools in daily development workflows Strong communication skills and ability to collaborate cross-functionally Passion or interest in improving mental healthcare outcomes Nice to Have:: Experience in HIPAA-regulated healthcare or fintech environments Experience integrating AI/ML solutions in production