Joining a fast-growing European logistics tech company building the infrastructure that makes last-mile delivery smarter, greener, and more reliable. This is a backend engineering role at the heart of a critical platform migration, embedded in an empowered product squad.

The challenge

The PUDO platform processes thousands of daily parcel events across Spain and Portugal on a large, battle-tested Java + Oracle codebase. The mission: keep that system stable and reliable while progressively migrating it to a modern Python + PostgreSQL stack. This is not a rewrite from scratch. It requires technical judgment, respect for what works, and the ability to plan and execute a migration without disrupting live operations.

- Own and evolve the existing Java + Oracle codebase while driving the migration to Python + PostgreSQL




- Lead the rewrite of critical carrier integrations on the new stack
- Introduce and champion automated testing in a codebase with no prior test coverage
- Help shape the AI-assisted development workflow for maintaining and evolving the legacy system
- Manage your own deployments and take accountability for what runs in production
- Collaborate with Engineering and Product Managers across the full product lifecycle
- Extensive Python experience with solid ecosystem knowledge
- Proven track record working with and improving legacy codebases
- Experience planning and executing technology migrations

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📌 Senior Software Engineer (Python) (España)
🏢 Shakers
📍 España