OA

Osama Al Kassih

Available to hire

I am a highly skilled Full-Stack developer with over 15 years of experience specializing in Microsoft technologies. NET MVC, React, Umbraco CMS, Azure, SQL Server, AngularJS, and CSS.

About

I am a highly skilled Full-Stack developer with over 15 years of experience specializing in Microsoft technologies. I have built strong expertise in ASP.NET Core (C#), Web APIs, ASP.NET MVC, React, Umbraco CMS, Azure, SQL Server, AngularJS, and CSS. I focus on delivering high-performance, secure, and scalable applications that meet business needs and delight users.

I have successfully delivered projects across multiple industries, collaborated with cross-functional teams, and often play code owner and mentor roles. I enjoy turning complex requirements into elegant, maintainable software and continuous improvement through CI/CD, cloud services, and modern front-end frameworks.

  • 18 years' experience
  • Joined August 2025

Languages

  • EnglishFluent

Industry experience

  • Software & Internet
  • Professional Services
  • Media & Entertainment
  • Healthcare
  • Education
  • Government
  • Other

Work experience· 19 roles

Umbraco .NET Core Developer (Contractor) · EquatorMar 2025 – Sep 2025 · 7 mos

I joined the team to develop a new website using Umbraco. I was responsible for building the website's content structure, and creating custom templates and features to meet the needs of the business. My tasks included configuring the back-end to ensure seamless content management and creating the required API endpoints to be used by the JS powered components.

Umbraco .NET Core Developer (Contractor) · EquatorMar 2025 – Sep 2025 · 7 mos

Joined the team to develop a new website using Umbraco. Responsibilities included building the website's content structure, creating custom templates and features to meet business needs, configuring the back-end for seamless content management, and creating required API endpoints for JavaScript-powered components.

Full-Stack .NET with React & Umbraco Developer (Contractor) · The Boxoffice CompanyDec 2024 – Sep 2025 · 10 mos

Re-joined the team to help continue adding new features & improvements to their online ticketing system, including integration with more third-party Point of Sale and online payment systems. Duties and Responsibilities included adding new components and features to the React app, continuously improving and refactoring it; extending their middleware API solution and ensuring high scalability and performance; working with Azure, writing Logic Apps and Azure Functions, storing files in Blob Storage, and managing CI/CD pipelines; acting as one of the code owners and reviewing PRs.

Full-Stack .Net with React & Umbraco Developer (Contractor) · The Boxoffice CompanyDec 2024 – Sep 2025 · 10 mos
Full-Stack .NET with React & Umbraco Developer (Contractor) · EquatorSep 2020 – Sep 2025 · 5 yrs 1 mo
Full-Stack .Net with React & Umbraco Developer (Contractor) · EquatorSep 2020 – Sep 2025 · 5 yrs 1 mo
Full-Stack .Net with React & Umbraco Developer (Contractor) · The Boxoffice CompanyMar 2020 – Sep 2025 · 5 yrs 7 mos
.Net Developer (Freelancer) · East Ayrshire CouncilDec 2019 – Present · 7 yrs

Education

MSc IT (Software Systems) · Heriot-Watt University, Edinburgh2005 – 2006
BSc IT (Applied Computer Science) · Philadelphia University, Amman, Jordan2001 – 2005
MSc IT (Software Systems) · Heriot-Watt University, Edinburgh2005 – 2006
BSc IT (Applied Computer Science) · Philadelphia University, Amman, Jordan2001 – 2005

Certifications and awards· 6

MCTS: Web Applications Development with Microsoft .NET Framework 4 (Exam 70-515)2030 – 2025
Microsoft .NET Framework – Application Development Foundation2030 – 2025
Umbraco V5 Level 12030 – 2025
MCTS: Web Applications Development with Microsoft .NET Framework 4 (Exam 70-515)2030 – 2025

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