Senior Java Engineer (Remote within Spain)

At Q-tech , we’re looking for a Senior Java Engineer to join a global SaaS product that’s scaling fast and moving into a more mature, reliability‑focused phase.

The platform handles a high volume of data and workflows used by customers across multiple countries. The team is strengthening its foundations to ensure stability, consistency and long‑term scalability — and they’re looking for someone who can take a leading role on the Java side.

You’d become the Java reference point : someone who can set technical direction, build new services with Java + Spring + PostgreSQL , and help elevate the platform’s engineering standards. There’s also some existing functionality in Node.js , and part of the work involves gradually moving that logic into the new Java‑based architecture.

This isn’t a “ship fast and patch later” environment. Quality matters: clean architecture, solid testing, strong patterns, observability, and...