At Pluxee, we shape the world of employee benefits and engagement by bringing to life a personalized and sustainable employee experience, at work and beyond.
Permanent Regular
Job Description:
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.
Your next challenge
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.
Domain Context
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.
Key Responsibilities
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 integral 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 distr ibuted locking and Pos t greSQL
- Infrastructure : Docker, Kubernetes , GitLab CI/CD ( deploying multiple times daily ).
- 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 acr

📌 Product Engineer (Madrid)
🏢 Pluxee Belgium
📍 Madrid