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I am a Senior .NET Full-Stack Contractor with over 19 years of experience delivering scalable and secure software solutions across the UK public and private sectors. With expertise in the latest .NET Core, Angular, and Azure cloud technologies, I am passionate about building efficient, event-driven microservices and ensuring high-quality deliverables through Agile methodologies, test-driven development, and security-first approaches. I thrive in collaborative environments working with government departments and industry leaders, committed to improving user experience and operational performance through innovative technical solutions and automation. My hands-on experience ranges from architecting cloud-native applications to CI/CD pipeline automation, all while adhering to industry best practices such as GDS standards and OWASP security guidelines.…I am a Senior .NET Full-Stack Contractor with over 19 years of experience delivering scalable and secure software solutions across the UK public and private sectors. With expertise in the latest .NET Core, Angular, and Azure cloud technologies, I am passionate about building efficient, event-driven microservices and ensuring high-quality deliverables through Agile methodologies, test-driven development, and security-first approaches. I thrive in collaborative environments working with government departments and industry leaders, committed to improving user experience and operational performance through innovative technical solutions and automation. My hands-on experience ranges from architecting cloud-native applications to CI/CD pipeline automation, all while adhering to industry best practices such as GDS standards and OWASP security guidelines.

Arunkumar Mohan

Full Stack Developer, Programmer, Cloud Developer, +2

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I am a Senior .NET Full-Stack Contractor with over 19 years of experience delivering scalable and secure software solutions across the UK public and private sectors. With expertise in the latest .NET Core, Angular, and Azure cloud technologies, I am passionate about building efficient, event-driven microservices and ensuring high-quality deliverables through Agile methodologies, test-driven development, and security-first approaches. I thrive in collaborative environments working with government departments and industry leaders, committed to improving user experience and operational performance through innovative technical solutions and automation. My hands-on experience ranges from architecting cloud-native applications to CI/CD pipeline automation, all while adhering to industry best practices such as GDS standards and OWASP security guidelines.…I am a Senior .NET Full-Stack Contractor with over 19 years of experience delivering scalable and secure software solutions across the UK public and private sectors. With expertise in the latest .NET Core, Angular, and Azure cloud technologies, I am passionate about building efficient, event-driven microservices and ensuring high-quality deliverables through Agile methodologies, test-driven development, and security-first approaches. I thrive in collaborative environments working with government departments and industry leaders, committed to improving user experience and operational performance through innovative technical solutions and automation. My hands-on experience ranges from architecting cloud-native applications to CI/CD pipeline automation, all while adhering to industry best practices such as GDS standards and OWASP security guidelines.

Available to hire

I am a Senior .NET Full-Stack Contractor with over 19 years of experience delivering scalable and secure software solutions across the UK public and private sectors. With expertise in the latest .NET Core, Angular, and Azure cloud technologies, I am passionate about building efficient, event-driven microservices and ensuring high-quality deliverables through Agile methodologies, test-driven development, and security-first approaches.

I thrive in collaborative environments working with government departments and industry leaders, committed to improving user experience and operational performance through innovative technical solutions and automation. My hands-on experience ranges from architecting cloud-native applications to CI/CD pipeline automation, all while adhering to industry best practices such as GDS standards and OWASP security guidelines.

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Work Experience

Senior Full-Stack Developer (Contract) at Eviden (ATOS Consulting)

September 1, 2023 - Present

Delivered microservices-based applications for Defra's Extended Producers Responsibility (EPR) program using .NET Core 8, Azure Functions, and Service Bus handling over 10,000 daily events. Developed secure ASP.NET Core Web APIs with Azure AD B2C ensuring GDS compliance. Automated Azure resource provisioning with Bicep/YAML and PowerShell, significantly reducing deployment times. Built responsive Angular 17 front-ends compliant with WCAG 2.1 for citizen-facing portals. Established CI/CD pipelines enhancing release frequency and integrated Cosmos DB for real-time event tracking and reporting performance improvements.

Senior Full-Stack Developer (Contract) at Willmott Dixon

August 31, 2023 - August 21, 2025

Led IT transformation projects delivering Commercial Portal and procurement applications using .NET Core 8 and Azure APIM with asynchronous Service Bus communication improving response times by 35%. Developed MVC Razor and Angular 16 front-ends with cross-browser and GDS usability compliance. Optimized data retrieval using EF Core and LINQ reducing times by 15%. Automated Azure DevOps CI/CD pipelines saving 10 hours weekly and ensured 85% code coverage with xUnit/Moq reducing defects by 20%.

Senior Full-Stack Developer (Contract) at Solirius Consulting

October 31, 2022 - August 21, 2025

Built virtual video platform components integrating Twilio/Zoom SDKs for negotiation training with Angular 10 serving 500+ daily users. Implemented SignalR for real-time chat and document co-editing lowering collaboration latency by 25%. Developed .NET Core 3.1 Web APIs integrating with Azure SQL and Blob Storage, processing over 1 million school records annually for Department for Education. Maintained high test coverage with Jasmine and xUnit/Moq, reducing bugs and accelerating release cycles by 30%.

Senior Full-Stack Developer (Contract) at AWSM Technologies

November 30, 2020 - August 21, 2025

Developed recruitment SPA VICTR with .NET Core 5 Web APIs using Identity Server 4 and JWT authentication for over 1,000 users. Created Angular 9 front-end with Material UI enabling efficient bulk timesheet imports saving recruiters 5 hours weekly. Containerized applications using Docker, deployed via Azure Web Apps with CI/CD reducing setup time by 50%. Integrated Microsoft OCR Cognitive Services for automated data extraction of 10,000+ documents monthly.

Senior .NET Developer (Contract) at Mosaique Creative & Marketing

November 30, 2019 - August 21, 2025

Developed SPA applications for Bentley Motors Aftersales Marketing and Customer Experience using .NET Core 2.1 and MVC 5, integrating Azure Cosmos DB and SQL processing 100,000+ monthly transactions. Implemented SAML 2.0 single sign-on securing portals for 2,000+ users. Automated database backups to Azure Blob Storage, reducing manual effort by 80% and set up Azure Traffic Manager improving uptime to 99.9%.