Tilman Harms Email & Phone Number

San Jose, California, United States

Marina, California, United States

• Engineered and executed comprehensive project designs, driving successful delivery from concept to implementation
• Directed a team of 7 technical consultants, overseeing the successful integration of diverse payment methods into a large-scale payment platform
• Conducted thorough design evaluations, risk analysis, and critical documentation reviews to uphold quality standards
• Refined and expanded testing protocols for extensive automated test suites within a cloud-based payment framework
• Managed comprehensive QA processes across multiple teams, including coordination with external vendors
• Developed and implemented detailed User Acceptance Testing protocols, ensuring rigorous system validation

United States

• Led the modernization of payment systems through Proof of Concept (POC) projects in Mexico City, steering strategic upgrades and technological advancements
• Designed and developed Proof of Concept (POC) initiatives for customer service user interfaces within a hybrid Cloud/Mainframe environment, optimizing interaction and functionality
• Engineered and implemented custom functionalities and user interfaces on an Enterprise Account Processing Platform, significantly improving operational capabilities and user engagement

United States

• Supported the integration and consolidation of multinational payment systems across Latin America
• Assisted distributed teams by analyzing and developing standardized processes for business and technical users
• Engineered high-availability solutions for a 24/7 payment processing environment, ensuring continuous reliability
• Developed a custom Nodejs payment integration switch to enable real-time transaction updates, improving response times and user satisfaction
• Designed and constructed web-based UI interfaces for seamless legacy mainframe integration, modernizing access

City Of Johannesburg, Gauteng, South Africa

• Led engineering and testing teams through the successful transition of the South African National Payment Switch (SASWITCH) from the ACI BASE24 (HP Nonstop) platform to Lusis Tango (HP UX), overseeing entire project.
• Delivered production support, facilitated system migrations, and conducted fault analyses to ensure seamless transitions
• Managed operations support, coordinated production escalations, and oversaw change control processes to maintain system integrity and performance
• Provided comprehensive communications support within the industry and executed strategic risk management plans to mitigate potential disruptions

City Of Johannesburg, Gauteng, South Africa

• Provided critical production support and conducted fault analysis to enhance system functionality and reliability
• Engineered advanced solutions for uninterrupted 24/7 payment processing, optimizing system performance
• Designed and implemented a lightweight, high-capacity ACH interchange (Linux, C ) switch for a Proof of Concept
• Executed volume tests exceeding 10,000 transactions per second for bank interchange, incorporating PCI/DSS compliance, multi-protocol message translation, fault recovery, and network fault mitigation on standard hardware

Pietermaritzburg Area, South Africa

Company News web site replacement project.- Designed and built custom replacement CMS with automated feeds using PHP and MySQL on Fedora Linux.- Extracted and migrated archives (static HTML) from legacy site and managed online publication.

Hong Kong SAR

Bank of China (HK) Credit Card. Credit Card migration - Modification of migration software. - Design and development of business pseudo language compiler for dynamic report generation.

Johannesburg Area, South Africa

Credit Card Account Processing Platform- Developed features on Credit Card processing platform (batch and online).- Provided second-level production support and change management.

Hong Kong SAR

Bank of China (HK) Credit Card implementation and customization of VisionPLUS Credit Card System on IBM Mainframe.- Implemented and configured Visa and MasterCard interface processors. - Developed reporting and migration software. - Provided Implementation and Production support.

Johannesburg Area, South Africa

- Developed reporting and analysis software in support of Credit Card portfolio migration.- First level Production support for Credit Card batch and online systems on IBM Mainframe.- Error analysis, reporting and implementation support for Y2K project.