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Fiverr Pro
Nederlands
$
USD
Sylvain REY
@aymaraeurl
Senior Backend and Blockchain Engineer
Verenigde Staten
Engels, Spaans, Frans
Over mij
Senior backend engineer for fintech and blockchain teams.
7 years of Java and Spring Boot in regulated environments (payments, ledgers, KYC/AML). 3 years on EVM chains: event indexers, reorg handling, Kafka and PostgreSQL pipelines.
What I deliver: backend features and APIs, EVM indexers, and written architecture reviews of fintech and crypto backends, with risks ranked and fixes you can ship.
Scope and price agreed in writing before I start. Tests and documentation with every delivery. English, French, Spanish.
Skills
Sylvain REY
offline •
Bekijk mijn diensten
API en integraties
I will build and fix your java spring boot rest API
Code review
I will review your fintech or crypto backend architecture
