Senior Backend Architect - Scalable Microservices, Hybrid

Fotocasa Group; Barcelona; Hybrid; EUR 90,000 - 130,000; Full time

Benefits offered by this job

Health insurance

Hybrid work

25 vacation days

Work from anywhere days

Job summary

Fotocasa Group is seeking a Backend Engineer in Barcelona to lead technical direction in a product team, architect scalable microservices, and deliver high-impact solutions for millions of users. You will mentor engineers, drive design reviews, and own cross-team initiatives, while focusing on end-to-end product impact and engineering excellence.

We value 8+ years in backend, Kotlin/Java, AWS, Docker/Kubernetes, Kafka, and strong ownership.

Qualifications

• 8+ years of backend development experience with high-scale distributed systems.
• Kotlin, Java proficiency.
• Strong system architecture and microservices design skills.
• Experience building microservices with Spring Boot and Spring Cloud.
• Hands-on AWS production experience (Lambda, S3, RDS).
• Docker and orchestration (Kubernetes, ECS, Docker Swarm).
• Kafka streaming and observability tooling (Datadog, Prometheus, Grafana).
• CI/CD practices with SOLID and tested code.
• Agile/Scrum methodologies in delivery.
• End-to-end ownership of initiatives with business impact alignment.
• Vision for simplifying architecture and reducing complexity.
• Mentoring and interview skills; strong cross-team collaboration.
• Fluency in Spanish and English.
• Hybrid work preference, 2 days in the office, 25 vacation days, and 20 WFA days.
• Budget for professional development and certifications.

Responsibilities

• Lead technical direction within the product team and architect scalable solutions.
• Collaborate to analyze problems, define hypotheses, and propose solutions.
• Validate hypotheses through iterative experiments and a fail-fast culture.
• Drive engineering evolution via emerging technologies and best practices.
• Align cross-team to deliver stakeholder-satisfying solutions.
• Mentor engineers, lead design reviews, and promote engineering excellence.
• Own cross-team initiatives bridging product strategy and tech execution.
• Consider end-to-end product experience in technical decisions.

Skills

Backend architecture

Kotlin

Java

Microservices

Spring Boot

Spring Cloud

AWS

Docker

Kubernetes

Kafka

Observability

CI/CD

SOLID

Testing

Agile/Scrum

Leadership

Mentoring

Cross-team

Tools

Spring Cloud

Datadog

Prometheus

Grafana

Docker Swarm

ECS

Job description

Fotocasa Group is seeking a Backend Engineer in Barcelona to lead technical direction in a product team, architect scalable microservices, and deliver high-impact solutions for millions of users. You will mentor engineers, drive design reviews, and own cross-team initiatives, while focusing on end-to-end product impact and engineering excellence.

We value 8+ years in backend, Kotlin/Java, AWS, Docker/Kubernetes, Kafka, and strong ownership.