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John S
@jsimiyu
Senior Backend Engineer
Kenia
Englisch
Über mich
Senior Backend Engineer specialising in production backend systems, APIs, fintech infrastructure, identity, and enterprise integrations. I work mainly with Java and Spring Boot, with experience in Python, Go, and Node.js/Express. I’ve built financial transaction systems, investment platforms, enterprise SSO, legacy integrations, large-file infrastructure, and API/data platforms using PostgreSQL, Kafka, Keycloak/OIDC, and Docker.
Kompetenzen
John S
offline •
Durchschnittliche Antwortzeit: 1 Stunde
Meine Dienstleistungen
Full-Stack-Webanwendungen
I will build your spring boot vaadin business web application
API & Integrationen
I will build a scalable backend API for your application
Arbeitserfahrung
Senior Backend/Platform Engineer
Invest Africa • Vollzeit
Aug 2021 - Present • 5 yrs
Investment core, financial engines, lending/payment systems.
