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Sammy Zakaria

@sammyzakaria

Software Developer at Premia Solutions who modernised legacy platforms and improved payment reliability.

At Premia Solutions, I modernised legacy platforms across dashboards, policy management and e-commerce workflows. I also resolved performance and reliability issues, including stabilising SignalR functionality and addressing duplicate transactions in payment flows.

At Greenzone, I developed .NET Core and Vue.js web portals that reduced internal staff waiting times by 40%. I also built a WhatsApp integration that automated customer messaging across departments.

At Boditrax, I built web portals and API services that provided personalised health and fitness insights to customers across the UK and Asia. I also worked on iOS and Android apps using Xamarin and integrated third-party services and hardware.

Earlier, at Prime Group, I built and hosted customer web portals with ASP.NET, extending their functionality to meet client requirements. My work has included modernising C#/.NET applications, APIs and web platforms, supported by Microsoft Certified: Azure Fundamentals (AZ-900).

Experience

Work history, roles, and key accomplishments

Developer

Premia Solutions

Dec 2025 - May 2026 (5 months)

Modernised and enhanced legacy platforms across dashboards, policy management and e-commerce workflows. Diagnosed and resolved performance and reliability issues, including stabilising SignalR functionality and addressing duplicate transaction issues in payment flows.

C#.NET SignalR Caching AI Azure

Developer

Greenzone

Nov 2020 - Sep 2025 (4 years 10 months)

Developed and enhanced .NET Core and Vue.js web portals, reducing internal staff waiting times by 40%. Maintained and modernised legacy applications and built a WhatsApp integration to automate customer messaging.

.NET Core Vue.Js C#VB.NET WPF MSSQL Azure Functions WhatsApp API Code Review Mentorship

Developer

Boditrax

May 2018 - Nov 2020 (2 years 6 months)

Built web portals and API services using .NET Core, providing millions of customers with personalised health and fitness insights. Worked on iOS and Android app development using Xamarin and integrated third-party services.

.NET Core C#JavaScript MSSQL Xamarin REST APIs Third Party Integrations

Web Developer

Prime Group

Mar 2012 - May 2018 (6 years 2 months)

Built and hosted dozens of customer web portals using ASP.NET and CSS, supporting hundreds of users. Extended web application functionality using C#, JavaScript and MS SQL to meet client requirements.

ASP.NET CSS C#JavaScript MSSQL Document Composition