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Oscar Romanini

@oscarromanini

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Software engineer at Objective, allocated at EBANX, who eliminated 504 timeouts in payment reconciliation.

Brazil

Message

At Objective, allocated at EBANX, I work on a mission-critical payment reconciliation platform, delivering features and partner integrations end to end. I eliminated 504 timeouts in batch deletion for high-volume acquirers by moving heavy queries out of HTTP requests and into an asynchronous Redis worker.

I also migrated Datalake reports to GCP/BigQuery and built platform monitoring that helps detect discrepancies before they cause impact. At Solar Maxx, I built the company's first system for commercial proposals; in personal projects, I build with LLMs, RAG, MCP, and AI agents.

Experience

Work history, roles, and key accomplishments

Current

Full Stack Software Engineer

Current

Objective

Jul 2022 - Present (4 years 4 months)

Develops and maintains mission-critical payment reconciliation systems for EBANX, handling high-volume transactions and partner integrations. Led elimination of 504 timeouts, migrated Datalake reports to BigQuery, and built monitoring end to end.

PHP Laravel MySQL Redis BigQuery GCP Docker PHPUnit Test Driven Development CI CD OpenSearch Elastic Stack REST APIs Queue Management Distributed Systems Monitoring Alerting AI Agents LLM RAG MCP

Full Stack Developer

Solar Maxx

Sep 2020 - Jul 2022 (1 year 10 months)

Led the IT team and built the company's first commercial proposals monolith, enabling consultants to issue proposals in 5 minutes. Started a solar kit generation microservice, logistics system, and management reporting system.

PHP Laravel MySQL Leadership System Architecture Microservices REST APIs

Full Stack Developer and Team Lead

Grupo Solpac

Jul 2020 - Sep 2020 (2 months)

Led the development team and served as point of contact between departments and IT. Improved performance of the main system and added fields to support daily operations.

PHP Laravel Leadership Performance Optimization Cross Functional Collaboration

Full Stack Web Developer

CRMALL

Oct 2018 - Sep 2019 (11 months)

Built integration with the Brazilian Federal Revenue Service and a purchase data capture module, making receipt processing over 60% faster. Contributed to campaign microsites for shopping malls.

PHP Symfony REST APIs Integration Performance Optimization