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Ericka User

@erickauser1

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I build cloud data platforms, event pipelines, and automated integrations for enterprise systems.

United States

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I've built cloud data platforms and automated integrations at QCells North America and Johnson Controls, turning vendor and device data into usable systems for enterprise teams.

At QCells, I developed Java and Spring systems that collect vendor API data, persist it to Azure SQL Server, and surface summaries through PowerBI dashboards. I also designed batch asset-onboarding workflows that submit registrations to third-party APIs and track results.

At Johnson Controls, I developed .NET and Node.js data platforms, REST and GraphQL APIs, eventing pipelines, and Azure IoT services. Earlier, I built a Python API server for managing jobs on HPC clusters at the University of Wisconsin–La Crosse.

Experience

Work history, roles, and key accomplishments

Staff Software Engineer

QCells North America

Mar 2025 - Sep 2025 (6 months)

Designed and developed an automated system in Java using Spring to collect data from vendor APIs, persist to Azure SQL Server, and display summaries via PowerBI dashboards. Also designed a system to batch asset onboarding requests and track submission statuses.

Java Spring Framework Azure SQL Server Power BI REST APIs Automation

Staff Software Engineer

Johnson Controls

Jan 2021 - Jun 2021 (5 months)

Developed and maintained data platforms in .NET and node.js, and designed eventing pipelines and enrichment systems. Prototyped RBAC API and maintained device registration and commanding APIs.

.NET NodeJS REST GraphQL Angular React Azure Database For PostgreSQL Azure Cosmos DB OpenShift Kubernetes Azure Event Hubs Azure Functions Kafka Apache Storm Redis Azure IoT Hub Azure RBAC

Senior Software Engineer

Johnson Controls

Nov 2018 - Jan 2021 (2 years 2 months)

Developed and maintained data platforms in .NET and node.js, and designed eventing pipelines and enrichment systems. Prototyped RBAC API and maintained device registration and commanding APIs.

.NET NodeJS REST GraphQL Angular React Azure Database For PostgreSQL Azure Cosmos DB OpenShift Kubernetes Azure Event Hubs Azure Functions Kafka Apache Storm Redis Azure IoT Hub Azure RBAC

Software Engineer

Johnson Controls

Jul 2016 - Nov 2018 (2 years 4 months)

Developed and maintained data platforms in .NET and node.js, and designed eventing pipelines and enrichment systems. Prototyped RBAC API and maintained device registration and commanding APIs.