Senior Backend Engineer | Squad

Senior Backend Engineer

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.

• 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.

• Backend Core:
  Node.js (Type Script), NestJS (or similar frameworks).
• Data & State:
  MongoDB (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).

• 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.

• 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 fintech requirements like ledger systems and reconciliation.

Languages:

Spanish & English

Your location Spain

Happy at work
1) A meaningful job:
Be the change! Help us build the future of employee benefits by bringing to life sustainable and personalized experiences and contribute to make a real impact on millions of lives. Our business model delivers not just for individuals but their communities too, by supporting local businesses and economies.

2) A great culture:
People matter – a lot! Be part of a multicultural team that moves as one in a fast paced and innovative environment. We respect and care authentically about our people, we embrace wellbeing and work-life balance, new ideas and we have a lot of fun!

3) An empowering environment:
Be yourself! At Pluxee we proudly embrace diversity and value the uniqueness of our talents, fostering an inclusive work place where all abilities are celebrated, and equal learning and growing opportunities are a given.