Senior Full Stack Java Engineer (Java + Angular)

About the role

Applaudo Studios is hiring a Senior Full Stack Java Engineer in Mexico City to work on a mature, customer-facing product. You will own features end-to-end in a modern stack of Java 21, Spring Boot and Angular, delivering scalable, well-tested solutions. The role is a contractor position.

Key responsibilities

• Design, build and debug new product features end-to-end, across the backend API and the Angular frontend, within an established monolithic codebase.
• Develop and maintain RESTful APIs in Java 21 / Spring Boot, backed by PostgreSQL (MyBatis) and Liquibase for schema changes.
• Implement Redis-based caching strategies for performance and session management.
• Build reactive Angular 19 components using RxJS and client-defined UI frameworks.
• Write E2E and unit tests focused on critical business logic.
• Work with AWS (S3, ECS, CloudWatch, Bedrock) for storage, deployment, observability and AI integrations.
• Communicate early when a feature's complexity or scope exceeds initial estimates, and take part in Agile ceremonies and weekly client-facing meetings.

Required profile

• Bachelor's degree in Computer Science, Software Engineering or a related field, or equivalent professional experience.
• 8+ years of professional software development experience, with meaningful backend time in Java using Spring Boot.
• Comfortable working in an established codebase, estimating complexity accurately and communicating risks and timelines.
• Excellent English, required to work with the US-based team and stakeholders.

Required skills

• Java 21 and Spring Boot (dependency injection, REST controllers, service layers, configuration).
• Angular 14+ (Angular 19 strongly preferred) with RxJS.
• PostgreSQL, SQL, joins, indexing; MyBatis, Hibernate or similar ORM.
• Redis for caching or pub/sub, and AWS (S3, ECS, CloudWatch).
• Unit and E2E testing, and active use of AI tools in daily development.