Senior Backend Engineer - AI-Driven Benefits Platform

Pluxee España; España; Presencial; EUR 70.000 - 95.000; Jornada completa

Descripción de la vacante

Pluxee España seeks a Senior Backend Engineer to own the domain model for employee benefits and ensure scalable, multi‑tenant systems across markets. You will translate complex regulatory rules into robust code, lead technical decisions, and drive product velocity while maintaining quality and observability.

A strong emphasis on testing and AI‑driven tooling is expected. You will join the Benefits Squad, collaborating with Product and Ops to model edge cases, ensure data integrity, and deliver

Formación

• 5+ years of experience developing production‑grade applications.
• Experience within the Node.js ecosystem is a plus.
• Deep understanding of race conditions, eventual consistency, idempotency and message brokers.
• Experience with unit, integration, functional and end‑to‑end testing.
• Ability to operate services in a production environment and troubleshoot high‑concurrency issues.
• Strong inclination to use AI tools for problem solving and code generation.
• Growth mindset with willingness to mentor others and learn continuously.

Responsabilidades

• Own the Core Domain Model: design and evolve backend services for benefits, entitlements, limits and eligibility.
• Tame business complexity by translating multi-country rules into robust code with product/ops input.
• Build for consistency at scale across multi-tenant configurations and distributed state.
• Deliver new benefit types and market expansions with velocity while minimizing technical debt.
• Write tests that encode business rules to ensure quality as a product feature.
• Monitor domain health in production with dashboards and alerts for proactive issue detection.
• Provide technical leadership through code reviews, docs, and mentorship.
• Leverage AI tools daily to accelerate development and automate repetitive tasks.

Conocimientos

5+ years experience

Node.js ecosystem

Distributed systems mastery

Testing (unit/integration/functional/e

Herramientas

GitlabCI

Sentry

JIRA

Confluence

GitHub Copilot

Claude Sonnet

ChatGPT

Descripción del empleo

Pluxee España seeks a Senior Backend Engineer to own the domain model for employee benefits and ensure scalable, multi‑tenant systems across markets. You will translate complex regulatory rules into robust code, lead technical decisions, and drive product velocity while maintaining quality and observability.

A strong emphasis on testing and AI‑driven tooling is expected. You will join the Benefits Squad, collaborating with Product and Ops to model edge cases, ensure data integrity, and deliver