Open to opportunities

Eric Deleeuw

@ericdeleeuw

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Senior Full Stack Developer specializing in Azure, .NET, and cloud-native systems.

United States

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What I'm looking for

I seek a senior engineering role focused on cloud-native architectures, microservices, and CI/CD, in a collaborative, metrics-driven team that values reliability and rapid delivery.

I am a Senior Full Stack Developer with 12+ years building enterprise-scale applications using C#, .NET Core, Angular, and React. I specialize in architecting cloud-native solutions on Microsoft Azure that prioritize scalability, reliability, and developer velocity.

I have deep experience in microservice and event-driven architectures, delivering high-throughput data pipelines and resilient messaging systems. I designed an Azure pipeline processing millions of records per day with sub-second latency and implemented blue-green deployments to minimize downtime.

My background spans finance, automotive, and marketing technology, where I modernized legacy systems to .NET Core/7/8 microservices, reduced API response times dramatically, and increased product conversion metrics through data-driven dashboards. I also drive CI/CD automation, distributed caching, and production observability.

I am collaborative and metrics-focused, delivering measurable improvements such as increased advisor productivity, reduced hosting costs, and significant reductions in manual intervention and defects. I aim to build robust systems that enable teams to move faster and operate more reliably.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

Kinesso (IPG Group)

Jan 2023 - Present (2 years 9 months)

Architected an Azure-based data pipeline using .NET 8, Event Hub and Cosmos DB processing 5M+ records/day with sub-second latency and led a React dashboard that increased conversion rate by 15%. Implemented distributed caching and blue-green releases to achieve 99.98% message reliability and under 2 minutes downtime.

C++.NET 8+Azure Event Hubs Cosmos React Azure Service Bus Azure DevOps CI CD

Software Engineer III

Toyota Motor North America

Jan 2020 - Jan 2023 (3 years)

Led modernization of Connected Vehicle APIs from .NET Framework to .NET 7 microservices supporting 2M+ vehicles and engineered Azure Functions plus Cosmos DB pipelines to automate IoT data ingestion, reducing manual intervention by 70%. Optimized API response times from 1.2s to 300ms.

C++Net 7 Azure Functions Cosmos Angular Microservices IoT Performance Optimization API Design

Full-Stack Developer

Fisher Investments

Jan 2016 - Jan 2020 (4 years)

Delivered client portfolio management apps using .NET 6, Angular and Azure SQL that boosted advisor productivity by 45% and automated batch risk analysis via Azure Functions processing 200K+ records per run. Integrated OAuth 2.0 with Azure AD for multi-portal authentication.

C++Angular Azure SQL Azure Functions OAuth 2.0 Azure AD Power BI Batch Processing

Software Engineer

Xplor Technologies

Jan 2013 - Jan 2016 (3 years)

Developed ASP.NET MVC membership and billing systems serving 150K+ users and migrated legacy .NET apps to Azure App Service and .NET Core 2.0, reducing hosting costs by 27% while enabling analytics for 2K clients. Partnered on automated regression testing to cut production defects by 40%.