Sue Loanis
@sueloanis
I build resilient, high-throughput payment and backend systems at scale.
ZimbabweWhat I'm looking for
At Mastercard, I build high-throughput payment infrastructure for global transaction volumes, improving performance, operational resilience, and continuous availability.
I've scaled backend microservices, optimized payment routing, and implemented automated failover designed to preserve data integrity and prevent transaction loss during network disruptions. My work has improved transaction processing speed by 45% and reduced downtime by 60%.
Previously at JPMorgan Chase, I modernized wire transfer systems handling more than three million transactions monthly, embedding automated risk, fraud, sanctions, and compliance validation into live payment pipelines.
At OkCupid, I built Dealbreakers in the core matching engine, adding advanced compatibility filtering that improved user match quality by 70% while maintaining scalable search performance.
Experience
Work history, roles, and key accomplishments
Focused on high-throughput network and backend engineering supporting infrastructure designed to process global transaction volumes with low latency and continuous availability. Scaled backend microservices, optimized payment routing, and implemented automated failover mechanisms to preserve data integrity and prevent transaction drops during network disruptions.
Education
Degrees, certifications, and relevant coursework
Rutgers University
Bachelor's Degree, Technology
Built a strong foundation in software development, programming concepts, systems architecture, and technology-driven problem solving.
Tech stack
Software and tools used professionally
Availability
Location
ZimbabweAuthorized to work in
Job categories
Skills
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