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Hi there! I'm Mateus, a Backend Engineer delivering scalable financial and SaaS platforms, reducing payment onboarding time from months to days and cutting financial discrepancies to near zero. Strong experience designing backend architectures for payment integrations, high-volume data processing, and mission-critical systems, with a proven record of performance optimization, automation, and risk reduction in production environments…Hi there! I'm Mateus, a Backend Engineer delivering scalable financial and SaaS platforms, reducing payment onboarding time from months to days and cutting financial discrepancies to near zero. Strong experience designing backend architectures for payment integrations, high-volume data processing, and mission-critical systems, with a proven record of performance optimization, automation, and risk reduction in production environments

Mateus Eduardo Pereira

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Hi there! I'm Mateus, a Backend Engineer delivering scalable financial and SaaS platforms, reducing payment onboarding time from months to days and cutting financial discrepancies to near zero. Strong experience designing backend architectures for payment integrations, high-volume data processing, and mission-critical systems, with a proven record of performance optimization, automation, and risk reduction in production environments…Hi there! I'm Mateus, a Backend Engineer delivering scalable financial and SaaS platforms, reducing payment onboarding time from months to days and cutting financial discrepancies to near zero. Strong experience designing backend architectures for payment integrations, high-volume data processing, and mission-critical systems, with a proven record of performance optimization, automation, and risk reduction in production environments

Available to hire

Hi there! I’m Mateus, a Backend Engineer delivering scalable financial and SaaS platforms, reducing payment onboarding time from months to days and cutting financial discrepancies to near zero. Strong experience designing backend architectures for payment integrations, high-volume data processing, and mission-critical systems, with a proven record of performance optimization, automation, and risk reduction in production environments

Skills

PHP

SQL

Docker

Experience Level

PHP

Expert

SQL

Expert

Docker

Expert

Language

English

Advanced

Portuguese

Fluent

Work Experience

Software Engineer at Capere Inteligência da Informação

December 1, 2024 - Present

Designed and implemented a scalable payment acquirer integration platform using Hexagonal Architecture, supporting providers such as RedeCard, Stone, Cielo, Adyen, and Getnet. Reduced payment provider onboarding time from 1-2 months to 3-7 days, enabling rapid platform scalability across multiple business segments.

Software Engineer at UltraLIMS

December 1, 2023 - December 1, 2024

Optimized a calculation engine for a LIMS SaaS executing complex spreadsheet-based workflows at scale. Refactored PHP logic and optimized SQL queries, reducing processing time from ~1 hour to under 5 minutes in high-volume scenarios.