Overview
In this role you will develop and maintain the online order processing services, building robust APIs and integrations with enterprise systems. You will orchestrate end-to-end order workflows across platforms, ensuring real-time processing, data consistency, and security. You’ll work within a cross-functional team to scale a Customer Order Management platform in a cloud-native environment. This is a hands-on role with meaningful impact on order reliability and customer experience.
Compensaciones / Ventajas
Permanent contract
Flexible working hours
4 work from home days per week
27 days of vacation per year
Training budget and language classes
Young and dynamic tech environment Responsabilidades
Design, implement and evolve REST APIs and event schemas for contract-first integrations
Develop and orchestrate event-driven order workflows using Kafka/Kafka Streams and Temporal
Model and propagate order data across Mongo DB, Postgre SQL, and Protobuf
Enable real-time synchronization to corporate systems and analytics with Pub/Sub to Big Query




Operate and improve a GCP/Kubernetes platform with Git Ops (Flux) and CI/CD
Monitor, troubleshoot production, and optimize performance, security, and SLAs Requisitos principales
Experience with event-driven, distributed systems
Kotlin on JVM; strong Java skills; Python or Type Script a plus
Contract-first RESTful API design with Open API and API gateway policies (Kong/Apigee)
Relational and No SQL databases (Mongo DB, Postgre SQL); schema design and performance tuning
Cloud-native operations on GCP with Kubernetes and Terraform; Git Ops (Flux); observability and production troubleshooting
Integration across enterprise systems using synchronous and asynchronous patterns (Kafka, Google Pub/Sub)
Focus on reliability, security, and GDPR/PII compliance; strong cross-functional collaboration Cross-functional collaboration
Clear communication
Problem-solving orientation
Kotlin on JVM
Java
Python or Type Script (nice to have)

📌 Kotlin Backend Sw Engineer (Barcelona)
🏢 Hays
📍 Barcelona