Senior Backend Engineer | Squad

Senior Backend Engineer | Payments Squad page is loaded## Senior Backend Engineer | Payments Squadremote type:
Hybrid locations:
Madrid time type:
Full time posted on:
Posted Todayjob requisition :
R4218

Permanent Regular

Job Description:

Pluxee is a global player in employee benefits and engagement that operates in 31 countries. Pluxee helps companies attract, engage, and retain talent thanks to a broad range of solutions across Meal & Food, Wellbeing, Lifestyle, Reward & Recognition, and Public Benefits.
Powered by leading technology and more than 5,000 engaged team members, Pluxee acts as a trusted partner within a highly interconnected B2B2C ecosystem made up of more than 500,000 clients, 36 million consumers and 1.7 million merchants.
Conducting its business as a trusted partner for more than 45 years, Pluxee is committed to creating a positive impact on all its stakeholders, from driving business to local communities, to supporting wellbeing at work for employees while protecting the planet.

** Your next challenge
** Join
** Pluxee
* * as a
** Senior Backend Engineer
** and become a key contributor to our mission of revolutionizing employee compensation. You’ll join the
** Payments Squad**, a high-performance team dedicated to building the engine that moves money globally. We don’t just write code; we design resilient, mission-critical systems where
** transactional precision**,
** idempotency**, and
** fault tolerance
** are at the heart of everything we do.
** What You’ll Do**
* ** Design for Resilience:
** Build and optimize robust backend services capable of handling high-volume traffic while ensuring 100% data consistency and system reliability.
* ** Evolve Distributed Architectures:
** Understand the complexities of existing systems and evolve them into scalable, event-driven architectures to meet future global product requirements.
* ** High-Stakes Quality:
** In Payments, there is no room for error. You will be responsible for comprehensive testing (unit, integration, and acceptance) as well as advanced load and performance simulations.
* ** Operational Excellence & Observability:
** Monitor service health in production, using observability tools to proactively identify and resolve bottlenecks or anomalies.
* ** Technical Leadership:
** Share your expertise through deep code reviews, mentoring junior engineers, and documenting engineering standards that elevate the entire squad.
** Our Technical Stack**
* ** Backend Core:
** Node.js (Type Script), NestJS (or similar frameworks).
* ** Data & State:
** Mongo

DB (Atlas), Redis for caching and distributed locking.
* ** Infrastructure:
** Docker, Kubernetes, Git Lab CI/CD (deploying multiple times daily).
* ** Observability:
** Sentry and Datadog/New Relic for real-time monitoring.
* *
* Collaboration:

** Git Hub, Git Lab, Slack, JIRA, Notion.* *(

Note:

You will collaborate closely with our React/React Native teams, but your focus will be 100% Backend).
*** You’re a Match If You Have A Few of Below**
* ** Proven Senior Expertise:
** 5+ years of experience developing production-grade applications, specifically within the Node.js ecosystem.
* ** The "Payments Mindset":
** Direct experience with banking systems, payment gateways (Stripe, Adyen, etc.), ledger systems, or reconciliation processes.
* ** Distributed Systems Mastery:
** Deep understanding of race conditions, eventual consistency, idempotency, and message brokers.
* ** Problem-Solving DNA:
** A systematic approach to troubleshooting complex issues in high-concurrency environments.
* ** Quality First:
** Extensive experience with automated testing patterns and a "shift-left" security mindset.
* ** Growth Mindset:
** A passion for continuous learning, open to feedback, and a drive to help others improve their craft.
** Key changes made:**
* ** Focus shifted:
** From general "backend" to "transactional precision and idempotency."
* ** Refined Stack:
** Moved React/React Native out of your "Daily Stack" to avoid attracting full-stack profiles when you need a backend specialist.
* ** Added Observability:
** Included monitoring (Datadog/New Relic) as it’s vital for a Senior role in payments.
* ** Strengthened "Match" section:
** Added specific…