Senior Full Stack Engineer Java Node.js React

Career Stage: Senior Associate L2 (8+ years of experience)Job Title: Senior Full Stack Engineer (Java + Node.js + React)Location: Colombia, Costa Rica, Brazil, MexicoIndustry: UHGTime Zone: CST
JOB OVERVIEWWe are looking for a Senior Full Stack Engineer with strong expertise in Java (Spring Boot), Node.js, and React, focused on building scalable, cloud-native applications.This role combines hands-on engineering with module ownership and technical leadership, requiring end-to-end responsibility for backend services and collaboration with frontend development.You will work on microservices architectures deployed in cloud environments, contributing to both backend and frontend layers. At this level, you are expected to own delivery outcomes, influence design decisions, and guide team execution across modules.
YOUR IMPACTDesign and build scalable microservices using Java (Spring Boot) and Node.jsDevelop and maintain frontend components using React Own end-to-end delivery of modules (design, development, testing, deployment)Deploy and operate applications in cloud environments (Azure, AWS, or GCP)Build and maintain APIs (REST / GraphQL) ensuring performance and scalabilityLead technical decisions considering architecture, performance, and non-functional requirementsCollaborate across cross-functional teams to ensure high-quality product deliveryDebug and resolve production issues, improving system reliabilityContribute to CI/CD pipelines and DevOps practices
QUALIFICATIONSYour Skills and Experience (Must Have)7–10 years of experience in full-stack or backend developmentStrong hands-on experience with Java + Spring BootSolid experience with Node.js backend developmentMandatory experience with React (hands-on, not just exposure)Proven experience building systems using microservices architectureHands-on experience with cloud platforms (Azure, AWS, or GCP)Experience building APIs using REST and/or GraphQLExperience working with NoSQL databases (Cosmos DB preferred)Experience working in Agile cross-functional teams
SET YOURSELF APART WITH (NICE TO HAVE)Experience with AI/ML integrations (e.g., APIs, copilots, LLM usage)Experience with event-driven architectures (Kafka, messaging systems)Experience with Docker, Kubernetes, and containerized deploymentsStrong understanding of observability and monitoring toolsExperience contributing to architecture decisions or leading modulesExposure to innovation initiatives or POV development