? About Valeria
Valeria is building the future of HR and payroll in Spain. We're an AI-native
platform that automates contracts, payroll, and compliance for companies with
high employee turnover (hospitality, delivery, events, agriculture). We're
rethinking how an entire industry works—moving from manual, error-prone
processes to intelligent automation.
We're a fast-growing startup backed by top investors, disrupting a €5B+ industry
that's still stuck in spreadsheets and legacy software.

? Your Role

You'll be a core member of our product engineering team, designing and building
the infrastructure that powers Valeria. From architecting scalable APIs to
integrating with Spanish government systems and building AI-powered features,
your work will directly impact how thousands of employees get hired, paid, and
managed.

* Design and build scalable backend services using Python (Flask), with clean
architecture patterns and modern Python practices

* Architect cloud-native solutions on Azure with focus on reliability,
performance, and cost-efficiency





* Build and integrate AI capabilities into the product: document processing,
contract generation, compliance automation, and intelligent workflow
optimization

* Develop complex integrations with external systems: Spanish Social Security
(Seguridad Social), SEPE, payroll providers, e-signature APIs—handling
real-world edge cases and compliance requirements

* Implement event-driven architectures and async processing for high-volume
operations (batch payroll for thousands of employees)

* Optimize database performance: design PostgreSQL schemas, write efficient
queries, implement caching strategies with Redis

* Contribute to frontend when needed (React/TypeScript stack)—we value
full-stack mindset

* Establish engineering best practices: CI/CD pipelines, comprehensive testing
(pytest, integration tests), code reviews, monitoring and observability

* Own features end-to-end: from technical design and architecture discussions

📌 Senior Software Engineer (Barcelona)
🏢 ValeriaHR
📍 Barcelona