Sr Application Support Engineer Banking Sector Inglés Avanzado - Traslado a España

Senior Application Support Engineer - Banking Sector+ 5 years of experienceRelocation to SpainAdvanced English

Expected Functional Knowledge (Core Business
)
Solid experience in card authorization, transaction processing, and debit/credit card lifecycle management.Clear understanding of operational workflows for embossing, card issuance, tokenization, and token lifecycle.Management of disputes, incoming errors, and operational workflows related to clearing and settlement.Deep knowledge of channels, integration layers, and transactional APIs.Familiarity with international card schemes and networks (Mastercard, Visa, AMEX) and/or local processors.Experience with OAS / dual-run authorization services, events, batch processes, and operational dependencies within the banking system.Specific Technical Knowledge (Tech Stack & Infrastructur
e)
Minimum of 4 years of experience in technical support for backend applications, microservices, and Spring Boot over AWS infrastructure.Cloud & Backend Ecosystem: AWS cloud operations, CloudWatch, and general cloud monitoring.Containers & Microservices: Basic operational knowledge of Kubernetes / EKS, microservices, and distributed systems.Messaging & Events: Event-driven architectures utilizing Kafka (MSK / Confluent) and queue technologies such as RabbitMQ or equivalents.APIs & Monitoring: API troubleshooting and API Gateway monitoring.Databases: Monitoring and operational relationship of databases like Aurora/RDS, DynamoDB, and DocumentDB.Storage & File Transfer: File transfer services utilizing S3, EBS, and EFS.Batch Processes: Batch process monitoring with operational knowledge of Control-M or Airflow.Observability & Support: Management of logs, metrics, traces, dashboards, alert correlation, and GitOps knowledge (ArgoCD and GitHub Cloud focused on deployment visibility rather than execution).Support Methodology: Incident Management and ITSM frameworks.Fluent English — working language for all technical documentation and ceremoni
es.