Senior Backend Engineer - Event-Driven Booking Core

Lodgify; España; Remote; EUR 90,000 - 120,000; Full time

Benefits offered by this job

Remote work

25 days vacation

Health insurance

Annual offsite (Barcelona)

Job summary

Lodgify, a fast-growing scale-up in the vacation rental space, is seeking a Senior Backend Developer to own the booking core and financial logic within the Reservations Squad. You’ll drive end-to-end lifecycle features, real-time availability, and reliability improvements in a distributed C#/.NET environment.

Based in Barcelona with remote flexibility, you’ll mentor engineers, advance our event-driven architecture (RabbitMQ/Kafka) and perform zero-downtime migrations, shaping the platform for

Qualifications

• 7+ years of professional backend experience in C#/.NET
• 3+ years designing and operating distributed, event-driven architectures with RabbitMQ or Kafka
• Deep knowledge of databases and EF/EF Core; zero-downtime migrations on PostgreSQL or SQL Server
• Experience applying Domain-Driven Design (DDD), CQRS, onion/layered architectures, and ACL patterns
• Strong focus on testing, logging/APM instrumentation (Datadog), and idempotent design
• Mentor teammates, document architectures, and promote shared ownership of critical systems

Responsibilities

• Architect and evolve the booking core with end-to-end lifecycle, quotations, taxes, fees, and financial ledger logic
• Drive event-driven messaging and data fan-out across payments, messaging, and channel managers
• Lead architectural transition to EF Core 8/PostgreSQL with zero-downtime schema updates
• Decouple high-churn aggregates and strengthen cross-domain boundaries
• Optimize the calendar backend-for-frontend for real-time availability and anti-overbooking
• Improve reliability by defining SLOs and improving observability (Datadog)
• Mentor engineers through peer reviews and architectural documentation

Skills

Backend engineering

Event-driven

DDD & CQRS

Observability

Mentorship

Code reviews

Tools

RabbitMQ

Kafka

EF Core

PostgreSQL

SQL Server

Datadog

Job description

Lodgify, a fast-growing scale-up in the vacation rental space, is seeking a Senior Backend Developer to own the booking core and financial logic within the Reservations Squad. You’ll drive end-to-end lifecycle features, real-time availability, and reliability improvements in a distributed C#/.NET environment.

Based in Barcelona with remote flexibility, you’ll mentor engineers, advance our event-driven architecture (RabbitMQ/Kafka) and perform zero-downtime migrations, shaping the platform for