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Cagdas Arda is a highly experienced Senior Software Engineer and FinTech consultant with over 15 years of expertise in banking, payments, and high-performance backend systems. He has built and optimised large-scale, event-driven architectures for leading financial institutions, including real-time card authorisation platforms processing 500–600 transactions per second for over 100 million cards, with end-to-end latency targets below 100ms. His core technical strengths include C#, .NET (Core & Framework), Azure cloud architecture, microservices, and event-driven systems. Throughout his career, Cagdas has worked on mission-critical payment infrastructures, digital banking transformations, and post-trade financial systems — always with a focus on scalability, resilience, and clean design principles. He is known for his strong analytical mindset, attention to detail, and ability to bridge the gap between engineering excellence and business impact.…Cagdas Arda is a highly experienced Senior Software Engineer and FinTech consultant with over 15 years of expertise in banking, payments, and high-performance backend systems. He has built and optimised large-scale, event-driven architectures for leading financial institutions, including real-time card authorisation platforms processing 500–600 transactions per second for over 100 million cards, with end-to-end latency targets below 100ms. His core technical strengths include C#, .NET (Core & Framework), Azure cloud architecture, microservices, and event-driven systems. Throughout his career, Cagdas has worked on mission-critical payment infrastructures, digital banking transformations, and post-trade financial systems — always with a focus on scalability, resilience, and clean design principles. He is known for his strong analytical mindset, attention to detail, and ability to bridge the gap between engineering excellence and business impact.

Cagdas Arda

Back-End Developer, Full Stack Developer, Web Developer, +2

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Cagdas Arda is a highly experienced Senior Software Engineer and FinTech consultant with over 15 years of expertise in banking, payments, and high-performance backend systems. He has built and optimised large-scale, event-driven architectures for leading financial institutions, including real-time card authorisation platforms processing 500–600 transactions per second for over 100 million cards, with end-to-end latency targets below 100ms. His core technical strengths include C#, .NET (Core & Framework), Azure cloud architecture, microservices, and event-driven systems. Throughout his career, Cagdas has worked on mission-critical payment infrastructures, digital banking transformations, and post-trade financial systems — always with a focus on scalability, resilience, and clean design principles. He is known for his strong analytical mindset, attention to detail, and ability to bridge the gap between engineering excellence and business impact.…Cagdas Arda is a highly experienced Senior Software Engineer and FinTech consultant with over 15 years of expertise in banking, payments, and high-performance backend systems. He has built and optimised large-scale, event-driven architectures for leading financial institutions, including real-time card authorisation platforms processing 500–600 transactions per second for over 100 million cards, with end-to-end latency targets below 100ms. His core technical strengths include C#, .NET (Core & Framework), Azure cloud architecture, microservices, and event-driven systems. Throughout his career, Cagdas has worked on mission-critical payment infrastructures, digital banking transformations, and post-trade financial systems — always with a focus on scalability, resilience, and clean design principles. He is known for his strong analytical mindset, attention to detail, and ability to bridge the gap between engineering excellence and business impact.

Available to hire

Cagdas Arda is a highly experienced Senior Software Engineer and FinTech consultant with over 15 years of expertise in banking, payments, and high-performance backend systems. He has built and optimised large-scale, event-driven architectures for leading financial institutions, including real-time card authorisation platforms processing 500–600 transactions per second for over 100 million cards, with end-to-end latency targets below 100ms.

His core technical strengths include C#, .NET (Core & Framework), Azure cloud architecture, microservices, and event-driven systems. Throughout his career, Cagdas has worked on mission-critical payment infrastructures, digital banking transformations, and post-trade financial systems — always with a focus on scalability, resilience, and clean design principles.

He is known for his strong analytical mindset, attention to detail, and ability to bridge the gap between engineering excellence and business impact.

Skills

Experience Level

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Work Experience

Senior Software Engineer at Softtech A.S

April 1, 2023 - October 16, 2025

As a member of an eight-person Senior Software Engineer team, contributed to a high-performance, low-latency card authorization system. The system processes 500–600 EMV messages (ISO 8583) per second for over 100 million debit and credit cards. Implemented PCI-DSS and AML regulatory framework requirements. Ensured transaction complete cycle duration remained under 100 ms through optimized code and system design. Maintained and developed new features for a .NET Core and C#-based back-end. Developed a REST API for communication with IBM MQ for real-time card authorization and transactions. Integrated new card types into the system.

Senior C# .NET Developer (Contract) at SMBC Group

April 1, 2023 - Present

Key member of the Risk Management Department middleware team, contributing to critical financial systems. Developed and integrated new features for back-end applications, managing communication between Front Office and Back Office, and populating over 100 reconciliation reports. Implemented ION Anvil and Swap One Rest services, enhancing functionality for Synthetic Prime Brokerage applications. Maintained and developed existing features for middleware applications (Windows Services) responsible for collecting trade information from leading markets. Optimized Swift Message processor service, achieving a 50% performance increase. Created a WPF-based UI with DevExpress framework to visualise calculated values from approximately 2.5 million Swift Messages transactions over two years. Created isolated non-prod environments, improved performance by migrating old legacy system to a new server architecture and modernising the stack from .NET Framework 4.8 to .NET 8. Created new Bamboo CI/CD pi

Team Lead & Senior Software Engineer (Contract) at UpLift People Consulting

September 30, 2022 - October 16, 2025

Successfully created and managed a team of 4 to build a new project from scratch. Designed and developed a scalable Azure-based application to collect millions of candidates’ job information efficiently. Managed the Azure CI/CD pipeline using Azure DevOps to ensure continuous delivery.

Software Engineer at Akbank A.S

March 1, 2018 - October 16, 2025

Developed new features for a C# and .NET framework-based 'Paperless Branch' application, which collects over 300,000 documents and images, processes, and stores them in IBM Content Manager. Prepared new frontend components for Windows Forms applications using C# to resolve performance bottlenecks in the card embossing system. Improved system capability and performance by approx 3,000% in the card embossing system through new component design. Designed a ClickOnce application in C# that manages code commits in TFS and facilitates correct application version deployment to customers, improving team capacity and correct version deployment by over 75%.

Software Engineer at CyberSoft A.S

January 31, 2013 - October 16, 2025

Created new screens and developed new features for a Java-based investment app using the proprietary Aurora Framework. Performed SQL tuning for existing enterprise-level database procedures and views, enhancing system efficiency.