Jason Willey

C

Lead Software Engineer

Coloplast,

Apr 2022 - Current (4 years 5 months)

• Architected HIPAA-compliant healthcare systems using .NET 6, Go, and Azure Services—cutting data latency by 40% across a 50-provider network. • Designed and deployed a cloud-native patient portal with PostSQL, scaling to 10K+ daily users while reducing hosting costs by 40%. • Built a .NET MAUI-based cross-platform telehealth application supporting offine sync via SQL CE with 99.9% uptime across iOS and Android platforms. • Delivered infrastructure-as-code using Terraform and Azure DevOps pipelines, reducing deployment times from 2 hours to 15 minutes. • Rewrote critical modules in Go for performance-intensive subsystems, including HL7-based messaging and real-time data validation services.

Sr. Software Engineer

OutSystems

Jan 2016 - Mar 2022 (6 years 3 months)

• Led design of a multi-tenant SaaS platform using .NET Core + Azure Functions, ensuring zero-downtime operation under high transaction loads. • Developed a hybrid REST/gRPC API Gateway in Go to process 5,000 POS syncs/hour across distributed retail networks. • Engineered a cloud-based audit and document management solution with ASP.NET MVC and Docker on GCP, decreasing prep time by 60% for oil & gas audits. • Modernized CRM infrastructure with .NET Core + GraphQL, improving data response times by 60% and handling 500+ concurrent users. • Deployed an AML/SEC compliance monitoring tool with SQL Server, fagging 98% of suspicious activity within 500ms response time.

C

Senior Software Engineer

Castle Harlan

Jun 2012 - Dec 2015 (3 years 7 months)

• Engineered a high-frequency trading system with .NET Framework 4.5 and Azure Service Bus, processing 50,000+ trades daily and reducing latency by 35% for $10M portfolios. • Implemented a PCI-DSS-compliant payment gateway using C# and REST APIs, securing 100,000 monthly transactions with zero breaches over 3 years. • Designed and implemented scalable backend systems using Golang, achieving a 30% improvement in API response time. • Deployed an AML/SEC compliance monitoring tool with Python and SQL Server, fagging 98% of suspicious activities within 500ms across 5,000 daily trades. • Optimized fnancial reporting with parallel processing in C#, cutting report generation from 10 minutes to 45 seconds for 200+ investment managers. • Accel

I

Back End Developer

Impact.Com

Dec 2009 - May 2012 (2 years 6 months)

• Built internal web apps using ASP.NET MVC and Entity Framework • Integrated third-party APIs and authentication systems (OAuth2, JWT) • Worked closely with UI/UX team to implement responsive front-end with Razor and jQuery • Migrated legacy code from .NET Framework to .NET Core

Full Stack Developer

SimbirSoft

Nov 2005 - Nov 2009 (4 years 1 month)

• Developed a property valuation tool with ASP.NET MVC and SQL Server, improving real estate price accuracy by 20% for 300+ monthly appraisals. • Migrated a legacy CRM to HubSpot's cloud with .NET Web API integrations, training 50 sales reps and boosting data feld accuracy from 60% to 95% in 6 months. • Revamped an e-commerce platform with Angular and .NET Core, increasing transaction success rates by 15% and handling 25,000 daily users. • Automated reporting workfows with Python scripts and SQL Server, reducing manual effort by 70% and delivering 100+ weekly reports on time.

A

Junior Web Developer

AltSource, Inc

Mar 2004 - Oct 2005 (1 year 8 months)

• Enhanced API integrations with ASP.NET Web Forms and WCF, scaling a SaaS platform to support 500 users and enabling 10+ third-party service connections. • Strengthened authentication with ADFS and .NET backends, cutting unauthorized access incidents to zero for a 200-employee supply chain tool. • Optimized inventory sync with SQL Server CE and C#, reducing data refresh times from 10 seconds to 3 seconds for a retail app serving 50 stores.

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