Di (Leo) Yang

Leo collaborates with multiple teams—mainly focused on SDK and related services—integrating operations, development, QA, and security to provide quick, secure solutions. He’s a seasoned full-stack developer with a focus on backend and adept at creating secure, scalable, and maintainable systems.

David Irish

David, a Senior Software Engineer, skilled in cloud integration, solution delivery and C#/.NET backend services, with knowledge of Linux, networking and security. On the Payments and Switch Team, he helps build a secure global platform and has tripled the throughput of a core service.

Dalgis Diaz-Leon

Dalgis heads the Payments & Switch Team, driving backend development and host integrations. Coming from Fintech leader NMI, she uses her expertise in EMV tech and card schemes to develop competitive products and ensure smooth customer transitions to the MPoC platform.

Konrad Olczak

Konrad is vital to developing and maintaining our mobile payment apps. As a Senior Android Developer, he works with the Customer Innovation team to provide top-notch, secure payment solutions. He added Dspread support for the Goodfellow project.

Sean Carmichael

Sean is one of our most experienced engineers, having progressed from Senior to Principal Engineer. On the Payments & Switch team, his expertise in designing, scaling, and maintaining services has been key in developing critical components, including our latest APIs and attestation service.

Scott MacKenzie

Scott, a Senior DevOps Engineer, excels in Azure, Pulumi, and Kubernetes. On the Cloud Infrastructure team, he has improved the performance, scalability and reliability of our new/existing platforms, and ensures daily operations comply with policies, procedures, ITIL, and quality standards.

Phuc Vinh Nguyen

Phuc, an experienced backend developer in the Customer Innovation team, possesses extensive expertise in C, C++, Python, and Powershell. He’s skilled in ASP.NET Core, jPOS, ISO8583, EMV, HSM, and RESTful APIs, and played a key role in the keyblock migration project for Spstack.

Peter Posypanka

Peter, is a Java Developer in the Payments and Switch team. He designs system architectures to meet customer and internal requirements, bridges MPP solutions with clients, and develops shared functionalities to improve quality. He continually seeks ways to enhance performance.

Paul Jones

Paul is a key member of the Cloud Infrastructure team, actively working with Product, Development, and QA teams to launch our SaaS solutions. With over 18 years in the Tech industry, his expertise is focused on Azure Cloud Infrastructure.

Muditha Gunasekara

Muditha, from the Cloud Infrastructure team, has 20+ years of experience. He holds certifications as a Microsoft Certified DevOps Engineer Expert and a Certified Information Security Manager (CISM) with knowledge of PCI DSS. He excels in DevOps, Azure, AWS, and Kubernetes.