Jose Claudio Cesar Ureña Jerez

Backend Developer

BairesDev

Sep 2023 - Oct 2025 (2 years 2 months)

Worked across different clients that ranged from the financial space to e-commenrce providing my expertise in Golang for maintenance and new developments on their platforms.

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Payment Systems Developer

Change Financial Ltd.

Mar 2022 - Current (4 years 5 months)

Owner and lead engineer for a card transaction dispute management solution used in Southeast Asian banks. Worked in various java projects regarding transaction encryption for 3DS and digital wallet integrations, REST API middle-wares and other miscellaneous enhancements to the Vertexon Card Management System. - Leveraged expertise in relational and non-relational databases, including PostgreSQL, MySQL, and MongoDB, to architect and maintain data storage solutions that supported high-availability services within the card management ecosystem.

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Software Developer Engineer

Claro Dominicana (Subcontracted by NewTech S.R.L.)

Nov 2021 - Mar 2022 (5 months)

Job title: Software Developer Engineer Job description: Development and maintenance of RESTful web services with the Spring Boot Framework and Jakarta EE specifications for client facing portals and system to system middleware. - Development and maintenance of RESTful web services with the Spring Boot Framework and Jakarta EE specifications for client facing portals and system to system middleware. - Leveraged proficiency in FastAPI to maintain and support specific microservices, ensuring architectural consistency and high performance across the broader backend ecosystem.

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Backend Developer and Data Engineer

C.C. Software Group S.R.L

Jun 2021 - Oct 2022 (1 year 5 months)

- RESTful Micro-service development with the Spring Cloud framework, container orchestration using Docker Compose, and data scrapping and scripting using Golang and Python. - Architected and deployed scalable micro-service environments by leveraging AWS instances, ensuring robust infrastructure support for complex backend projects.

Jose Claudio Cesar Ureña Jerez

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