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Marvyn HarrysonMH
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Marvyn Harryson

@marvynharryson

Full Stack Engineer at Red Efectiva (Paynau), building AWS microservices and secure financial transaction services.

Dominican Republic
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At Red Efectiva (Paynau), I develop .NET services and REST APIs for financial transactions and business workflows. I also build AWS microservices, including Python serverless functions on Lambda, and develop React components.

At Seguros Reservas, I developed ASP.NET Core APIs for insurance systems and migrated selected workloads to Azure SQL Database. I also integrated insurance systems with the ERP platform for policy, billing, and accounting data.

At Fullstack Labs, I developed .NET and Angular applications and provisioned cloud infrastructure with Terraform and Bicep. I also worked on event-driven banking and reporting integrations using Azure Service Bus and Event Hubs.

Earlier, at Promerica Bank and Mercury Solutions, I modernized legacy .NET applications, developed web APIs, and worked with banking systems and cross-platform Xamarin apps. My work spans financial and insurance applications, cloud services, databases, and secure integrations.

Experience

Work history, roles, and key accomplishments

Education

Degrees, certifications, and relevant coursework

MI

Microsoft

Certification, Python Programming

Python Programming certification from Microsoft, completed in January 2026.

DU

Dominico-American University (UNICDA)

Bachelor's Degree, Systems Engineering

Bachelor's Degree in Systems Engineering from Dominico-American University (UNICDA), Dominican Republic, completed in December 2024.

TI

Technological Institute of the Americas (ITLA)

Diploma, Software Development

Software Development Diploma from Technological Institute of the Americas (ITLA), Dominican Republic, completed in April 2019.

MI

Microsoft

Certification, HTML and CSS

Microsoft Technology in HTML and CSS certification from Microsoft, completed in June 2018.

MI

Microsoft

Certification, Microsoft Office

Microsoft Office Specialist in Excel, Word, and PowerPoint certification from Microsoft, completed in June 2018.

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