Stephen Ugochukwu Mbonu
Software Application Developer at Western Union
- Role
- Application Developer at Western Union
- Location
- Austin, TX, US
- LinkedIn followers
- 500 followers
About Stephen Ugochukwu Mbonu
Full Stack Software Developer with 3+ years of experience building backend/frontend systems, scalable microservices, and cloud-based systems using Java, Spring Boot, AWS, and modern frontend frameworks. Delivered mission-critical services generating $600K+ in revenue impact across high-traffic financial platforms.
Experience
Application Developer
Jan 2023 — Present · US
Designed and deployed full-stack pricing microservice using Spring Boot, AWS, PostgreSQL, and Angular, reducing pricing adjustment time from two weeks to hours. Result: boosted revenue growth from 36% to 62%(+$600k) within a month for 4 Latin America corridors — the initial rollout and measurement scope.• Re-engineered core country-currency API used across 10+ services reducing response times from 7s with frequent timeouts to under 1s with zero timeouts, improving system reliability and customer satisfaction.• Designed a large-scale system to generate competitor analysis data, with complex grouping achieving 1m20s generation time (75% faster than 5-minute target), enabling faster analytics for operations and business teams.• Developed real-time transaction-limiting microservice processing requests/minute using Spring Boot, Redis, and FICO decision engine to enforce dynamic monthly limits per account type.• Mentored 2 junior developers, leading bi-weekly code reviews and advising on design best practices, improving code quality and reducing onboarding time by 30%.
Education
Michael Okpara' University of Agriculture Umudike
Bachelor of Engineering - BE
2013 — 2018
Wichita State University
Master of Science - MS
2021 — 2022
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