This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Node.js Backend Developer Sênior based in Brazil. This is an exciting opportunity for a senior backend engineer to work on mission-critical platforms that process and distribute clinical and laboratory data at scale. In this role, you will contribute to the design and evolution of modern distributed systems, helping build secure, reliable, and high-performance services in a highly collaborative environment. You will work with microservices, event-driven architectures, and cloud-native technologies while influencing technical decisions and driving continuous improvements across products and integrations. The position is ideal for professionals who thrive in complex ecosystems, enjoy solving challenging problems, and are passionate about software quality, scalability, and innovation. ### Accountabilities: - Design, develop, and enhance microservices responsible for processing and distributing clinical and laboratory data. - Build and maintain integrations between internal platforms and external partners. - Develop and optimize REST APIs for managing patient information, consent workflows, and related services. - Implement asynchronous processing solutions using messaging technologies such as AWS SQS and SNS. - Contribute to the evolution of event-driven architectures and distributed systems. - Work with data transformation and interoperability standards, including healthcare-related integrations. - Develop and maintain integrations with MongoDB, Redis, and third-party services. - Ensure software quality through automated testing, code reviews, and engineering best practices. - Perform troubleshooting and incident analysis in production environments. - Participate in technical discussions, architectural decisions, and continuous platform improvements. - Collaborate with multidisciplinary teams to enhance products, integrations, observability, and application performance. ## Requirements - Solid experience with Node.js and TypeScript development. - Strong background in REST API design and microservices architecture. - Expertise in asynchronous programming and distributed systems. - Experience implementing automated testing strategies, including unit and integration tests. - Deep understanding of SOLID principles, Clean Code practices, and software engineering standards. - Hands-on experience with AWS services, particularly SQS and SNS. - Knowledge of event-driven architectures, retry mechanisms, and fault recovery processes. - Strong experience with MongoDB, document modeling, query optimization, and Redis for caching solutions. - Familiarity with cloud-native environments, Docker, Git, CI/CD pipelines, and YAML-based configurations. - Experience with structured logging, monitoring, observability, and troubleshooting in distributed environments. - Excellent analytical, communication, and collaboration skills, with a strong sense of ownership and continuous improvement mindset. Nice to Have: - Experience with FHIR standards and healthcare system integrations. - Knowledge of clinical and laboratory interoperability platforms. - Experience with NestJS, Fastify, or Express frameworks. - Familiarity with Kubernetes, OpenTelemetry, AWS S3, and Keycloak. - Understanding of authentication and authorization integrations. - Experience with high-volume, mission-critical systems. - Knowledge of data privacy regulations and sensitive data protection practices, including LGPD. - Experience with enterprise integration platforms and large-scale distributed ecosystems. ## Benefits - Meal allowance and food voucher. - Home office allowance. - Comprehensive medical and dental insurance plans. - Life insurance coverage. - Discount partnerships and corporate agreements. - Educational partnerships with institutions and training providers. - Continuous training programs focused on agile methodologies and technical development. - Access to online learning platforms and professional development resources. - Collaborative and innovation-driven environment with opportunities for long-term career growth. How Jobgether works: We use an AI-powered matching process to ensure your application is reviewed quickly, objectively, and fairly against the role's core requirements. Our system identifies the top-fitting candidates, and this shortlist is then shared directly with the hiring company. The final decision and next steps (interviews, assessments) are managed by their internal team. We appreciate your interest and wish you the best! [Why Apply Through Jobgether?](https://jobgether.com/how-jobgether-works) Data Privacy Notice: By submitting your application, you acknowledge that Jobgether will process your personal data to evaluate your candidacy and share relevant information with the hiring employer. This processing is based on legitimate interest and pre-contractual measures under applicable data protection laws (including GDPR). You may exercise your rights (access, rectification, erasure, objection) at any time. #LI-CL1