Senior Product Engineer

Pluxee España; Madrid; Presencial; EUR 65.000 - 90.000; Jornada completa

Descripción de la vacante

Pluxee España seeks a Senior Product Engineer to own features end-to-end across backend, frontend, and AI-assisted workflows within one core domain.

You’ll collaborate across squads to deliver resilient, scalable solutions in a multi-region environment, balancing performance, data integrity, and user experience.

Formación

• 5+ years building production-grade applications.
• Strong ability to work across backend and frontend.
• Experience with TypeScript ecosystem is a plus.
• Familiarity with payments/banking systems is a plus.
• Using AI tooling to accelerate development and testing.

Responsabilidades

• Own features end-to-end from design to UI and observability.
• Design for resilience at scale with event-driven architectures.
• Evolve distributed architectures to meet global product requirements.
• Champion automated testing and performance simulations.
• Ensure operational excellence and observability in production.
• Provide technical leadership through code reviews and mentoring.
• Leverage AI-driven execution to accelerate delivery.

Conocimientos

Full-stack development

TypeScript

Distributed systems

AI tooling

Code reviews

Payments domain

Herramientas

Node.js

NestJS

React

React Native

MongoDB

Redis

PostgreSQL

Sentry

Datadog

New Relic

GitHub Copilot

Claude

ChatGPT

Descripción del empleo

Pluxee is a global player in Employee Benefits and Engagement that operates in 28 countries. Pluxee helps companies attract, engage, and retain talent thanks to a broad range of solutions across Meal & Food, Well-being, Lifestyle, Reward & Recognition, and Public Benefits.

Powered by leading technology and more than 5,600 engaged team members, Pluxee acts as a trusted partner within a highly interconnected B2B2C ecosystem made up of more than 500,000 clients, 37 million+ consumers and 1.7 million+ merchants.

Conducting business for more than 45 years, Pluxee is committed to creating a positive impact on local communities, supporting well-being at work for employees, and protecting the planet.

Join Cobee by Pluxee as a Senior Product Engineer and become a key contributor to our mission of revolutionizing employee compensation. You'll own features end-to-end — backend, frontend, and the AI-assisted workflows that let one engineer move fluidly across the stack — inside one of our core domains.

The domain you'll join depends on which squad you're assigned to.

Benefits — Own the domain that defines what benefits an employee can access, under what conditions, with what limits, and in what markets. Benefits isn't a simple CRUD layer — it's a rich domain with multi-tenant configurations, eligibility rules that vary by company and country, tax compliance requirements, and real-time state that must always be consistent. Covers areas like health insurance, pensions, custom benefits, food and transport, childcare, training, and renting.

Payments — Build the engine that moves money globally. A high-performance team dedicated to resilient, mission-critical systems where transactional precision, idempotency, and fault tolerance are at the heart of everything. Involves evolving distributed, event-driven architectures at high transaction volume.

Leaders — The Leaders domain covers the employee-facing mobile and web experience within the Cobee platform, managing personal data, benefit visibility, and privacy compliance (GDPR/LPD). The domain shares boundaries with Payments (owning employee-specific card logic and mobile flows) and Benefits (storing accumulation activation decisions while Benefits executes the end-of-cycle operations).

Managers App

Owns the HR admin experience, the tools client-company administrators use to manage their organization on the platform, and the client companies entity itself, the core record that everything else in the system hangs off of. Spans self-onboarding flows, multi-region and multi-market rollout, and the operational reliability of the admin-facing product. A domain where company-level configuration, data integrity, and cross-region consistency matter as much as UX.

What You’ll Do

• Own Features End-to-End: Take a feature from domain design through backend services to the UI that ships it, and the observability that tells you it's working.
• Design for Resilience at Scale: Build and optimize robust software capable of handling high-volume traffic while ensuring data consistency and system reliability, evolving existing systems into scalable, event-driven architectures as product requirements grow.
• Evolve Distributed Architectures: Understand the complexities of existing systems and evolve them into scalable, event-driven architectures to meet future global product requirements.
• Mission-Critical Precision: When dealing with benefits and money movements, accuracy is essential. You will champion comprehensive automated testing (unit, integration, and e2e) and run advanced load and performance simulations to guarantee rock-solid stability
• 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.
• AI-Driven Execution: Actively leverage AI tools and coding assistants on a daily basis to accelerate development cycles (SDD), automate repetitive tasks, and optimize overall team processes and delivery speed powered by AI Agents.

Our Technical Stack

• Stack: Node.js (TypeScript), NestJS (or similar frameworks), React, React Native.
• Data & State: MongoDB (Atlas), Redis for caching and distributed locking and PostgreSQL
• Observability: Sentry and Datadog/New Relic for real-time monitoring and PostHog.
• AI & Productivity: GitHub Copilot, Claude, ChatGPT, and other GenAI assistants.
• Collaboration: GitHub, GitLab, Teams, JIRA, Confluence.

You are a match

• Proven Senior Expertise: 5+ years of experience building production-grade applications, full-stack or with strong ability to work across layers. (Experience within Typescript ecosystem will be a plus.)
• Comfort working across backend and frontend, using AI tooling to close gaps in unfamiliar territory.
• Distributed Systems Mastery: Deep understanding of race conditions, eventual consistency, idempotency, and message brokers.
• The "Payments Mindset": experience with banking systems, payment gateways (Stripe, Adyen, etc.), ledger systems, or reconciliation processes will be a plus.
• Distributed Systems Mastery: Deep understanding of race conditions, eventual consistency, idempotency, and message brokers is a must.
• AI-Empowered Developer: A strong inclination to lean on AI tools for problem-solving, code generation, and workflow optimization, always looking for ways to work smarter and improve team efficiency.
• 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.

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 workplace where all abilities are celebrated, and equal learning and growing opportunities are a given.