A tech company with a business-driven DNA, founded in Barcelona, with the vision of becoming a global leader in the creation of Digital Hubs for major corporations worldwide.
We dont just build digital products we help shape the digital business strategy driving innovation, challenging assumptions, and defining the future of digital for general We work with agile methodologies, embracing continuous iteration as our mantra. multidisciplinary teams manage the entire end-to-end lifecycle of our digital products, and we are We are looking for a highly skilled Backend Integrations Engineer with expertise in WSO2 to design, development lifecycle, ensuring adherence to governance standards, optimizing API performance, and enabling seamless integrations across our digital landscape. The ideal candidate will have deep experience in API development, security, and monitoring, along with a strong understanding of API governance, OpenAPI, RAML, JSON:API standards, Define API contracts using OpenAPI, RAML, JSON:API, and other API definition standards. Monitor and analyze API usage to optimize performance and detect anomalies. Work closely with DevOps teams to deploy APIs within CI/CD pipelines. Optimize API Gateway configurations for performance, load balancing, and failover mechanisms. Implement API monitoring and analytics solutions using WSO2 Analytics, ELK,



or similar tools. Troubleshoot API performance issues and implement improvements. Define and track key performance indicators (KPIs) to measure API effectiveness. Strong knowledge of API design standards including OpenAPI, RAML, JSON:API. Proficiency in programming languages such as Java, Ballerina, Python, or Node.js. Experience with RESTful APIs, GraphQL, and microservices architecture. Hands-on experience in API analytics, logging, and monitoring tools. Knowledge of CI/CD pipelines, Docker, Kubernetes, and cloud-based API deployments. Familiarity with message queues, event-driven architectures (Kafka, RabbitMQ, etc.). Ability to work in an agile, fast-paced environment. Proficiency in both Spanish and English. Experience leading API development teams or mentoring junior developers. Experience with WSO2 Identity Server for API security and identity management. We are backed by the biggest companies in the world, but we operate like a startup. energy to the team, bringing ideas to the table with fire in your belly (and a smile on your face). Were not just building tech were change agents. the status quo is what gets us out of bed in the morning. standards, always going the extra mile to deliver impact, not just output, and were like the postman

📌 Systems & Integration Engineer (Barcelona)
🏢 Melza Consulting
📍 Barcelona