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Hi there! I'm Julio Cesar, a Backend Software Engineer focused on building reliable, scalable systems and APIs. I specialize in PHP (Laravel/Lumen), relational databases, and complex business workflows, with a passion for long-term maintainability and production-grade performance.\n\nIn my recent roles I’ve led backend evolution for nationwide mission-critical systems in Brazil, designed RESTful APIs for intricate workflows, and driven data integrity across critical operations. I enjoy refactoring legacy modules to improve stability, optimizing SQL queries to remove bottlenecks, and helping teams make sound technical decisions that balance speed and reliability.…Hi there! I'm Julio Cesar, a Backend Software Engineer focused on building reliable, scalable systems and APIs. I specialize in PHP (Laravel/Lumen), relational databases, and complex business workflows, with a passion for long-term maintainability and production-grade performance.\n\nIn my recent roles I’ve led backend evolution for nationwide mission-critical systems in Brazil, designed RESTful APIs for intricate workflows, and driven data integrity across critical operations. I enjoy refactoring legacy modules to improve stability, optimizing SQL queries to remove bottlenecks, and helping teams make sound technical decisions that balance speed and reliability.

JULIO CESAR DE ARRUDA

Back-End Developer, Web Developer, Full Stack Developer, +2

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Hi there! I'm Julio Cesar, a Backend Software Engineer focused on building reliable, scalable systems and APIs. I specialize in PHP (Laravel/Lumen), relational databases, and complex business workflows, with a passion for long-term maintainability and production-grade performance.\n\nIn my recent roles I’ve led backend evolution for nationwide mission-critical systems in Brazil, designed RESTful APIs for intricate workflows, and driven data integrity across critical operations. I enjoy refactoring legacy modules to improve stability, optimizing SQL queries to remove bottlenecks, and helping teams make sound technical decisions that balance speed and reliability.…Hi there! I'm Julio Cesar, a Backend Software Engineer focused on building reliable, scalable systems and APIs. I specialize in PHP (Laravel/Lumen), relational databases, and complex business workflows, with a passion for long-term maintainability and production-grade performance.\n\nIn my recent roles I’ve led backend evolution for nationwide mission-critical systems in Brazil, designed RESTful APIs for intricate workflows, and driven data integrity across critical operations. I enjoy refactoring legacy modules to improve stability, optimizing SQL queries to remove bottlenecks, and helping teams make sound technical decisions that balance speed and reliability.

Available to hire

Hi there! I’m Julio Cesar, a Backend Software Engineer focused on building reliable, scalable systems and APIs. I specialize in PHP (Laravel/Lumen), relational databases, and complex business workflows, with a passion for long-term maintainability and production-grade performance.\n\nIn my recent roles I’ve led backend evolution for nationwide mission-critical systems in Brazil, designed RESTful APIs for intricate workflows, and driven data integrity across critical operations. I enjoy refactoring legacy modules to improve stability, optimizing SQL queries to remove bottlenecks, and helping teams make sound technical decisions that balance speed and reliability.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Language

Portuguese

Fluent

English

Advanced

Work Experience

Backend Software Engineer at Cartórios de Protesto (Brazil)

July 1, 2023 - Present

Led the evolution of backend services for nationwide mission-critical systems; designed and improved RESTful APIs supporting complex workflows; ensured data consistency and integrity across critical operations; refactored legacy modules improving stability and maintainability; optimized SQL queries reducing performance bottlenecks; contributed to technical decision-making and system improvements.

Software Engineer at HSOL Marketing de Resultados

June 1, 2022 - July 1, 2023

Developed and maintained production web applications using PHP and MySQL; improved legacy systems and enhanced maintainability; diagnosed and resolved production issues; collaborated with stakeholders to deliver business-driven solutions.