Worked on a clinical-grade patient monitoring platform used across hospital environments. Unified clinician login across patient and billing services so staff could sign in once and move between systems without re-authenticating. Cleared a backlog on the patient lifecycle event pipeline that had been pushing alarm processing past the hospital's 60-second SLA, restoring on-time delivery during peak load. Cut latency on the alarm delivery path after dashboards flagged a slow service call as the bottleneck. Shipped into a regulated environment in close collaboration with QA and clinical engineering.
Stack
GraphQL
Spring Security
Spring Cloud Gateway
Kafka
gRPC
Built and scaled a B2B integration platform handling mission-critical EDI traffic with trading partners. Expanded protocol coverage beyond AS2 to SFTP and FTPS, unlocking onboarding for partners the previous system couldn't support. Shipped a self-service dashboard that let operations teams monitor transactions, inspect messages, and retry failures on their own, removing developers from routine incidents. Hardened the messaging layer against partner traffic spikes and eliminated the silent message loss that had been causing disputes. Tightened infrastructure by scoping per-service permissions across environments, shrinking container images by ~85% to speed deployments, and replacing fixed server counts with autoscaling. Brought CI/CD under version control and added proactive alerting that caught failures before partners noticed.
Stack
Spring Cloud Gateway
Resilience4j
Spring Boot
RabbitMQ
Kubernetes
Terraform
Jenkins