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 MongoDB, PostgreSQL, and Protobuf
- Enable real-time synchronization to corporate systems and analytics with Pub/Sub to BigQuery




- Operate and improve a GCP/Kubernetes platform with GitOps (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 TypeScript a plus
- Contract-first RESTful API design with OpenAPI and API gateway policies (Kong/Apigee)
- Relational and NoSQL databases (MongoDB, PostgreSQL); schema design and performance tuning
- Cloud-native operations on GCP with Kubernetes and Terraform; GitOps (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 TypeScript (nice to have)

📌 Kotlin Backend SW Engineer - barcelona
🏢 Hays
📍 Barcelona