Senior Java / React Full Stack Engineer

About the role

Abstra, a nearshore tech talent services company, is hiring a Senior Java / React Full Stack Engineer to own features end-to-end, from backend microservices through the user interface. The role works within a Java/Spring Boot microservices backend and a Next.js/React frontend deployed on AWS, with 100% remote work in Latin America overlapping U.S. business hours.

Key responsibilities

• Own features end-to-end, from technical design through production
• Build and maintain backend services in Java 21 / Spring Boot 3, exposing APIs via gRPC/Protobuf and REST
• Build user-facing features in React/Next.js (TypeScript) and integrate with backend APIs
• Design and evolve PostgreSQL data models, including migrations and query tuning
• Build event-driven features with Kafka where appropriate
• Make architecture decisions on service boundaries, API contracts, data models and UI/state patterns
• Monitor and operate services on AWS following DevOps patterns
• Use AI coding tools to speed up development, validating and testing their output
• Write automated tests across the stack and mentor other engineers

Required profile

• Bachelor's degree in Computer Science or equivalent experience
• 6+ years of professional software development across backend and frontend
• Experience mentoring engineers or leading a small technical team
• Fluent English for daily collaboration with a U.S.-based team

Required skills

• Java 21, Spring Boot 3, Next.js, React and TypeScript
• PostgreSQL and a statically typed backend language (Java preferred)
• Git, Linux/Unix command line
• Plus: gRPC/Protobuf, Kafka, AWS, Infrastructure as Code, and AI-powered product features

What we offer

• Compensation in USD and hardware and software setup
• Professional growth opportunities and a collaborative environment