Open to opportunities

Igor Queiroz

@igorqueiroz

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Senior Java backend developer specializing in microservices, cloud and Spring Boot.

Brazil

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What I'm looking for

Busco oportunidades desafiadoras em backend e cloud onde eu possa aplicar Java, microservices e práticas ágeis para criar soluções escaláveis e impactantes.

Sou desenvolvedor backend sênior com mais de 16 anos de experiência em Java, atuando com microservices, Spring Boot e arquiteturas monolíticas. Trabalhei em projetos internacionais para empresas como Dell EMC, eBay e Lenovo, entregando soluções escaláveis e de alta qualidade.

Tenho forte experiência em ambientes de nuvem (PCF, Azure, AWS, GCP), bancos de dados (Oracle, PostgreSQL, SQL Server, MongoDB) e ferramentas de CI/CD e containerização como Jenkins, GitHub Actions, Docker e Kafka. Desde 2018 foco em Java 8+ (incluindo 11, 17 e 21) e práticas ágeis (Scrum, Kanban).

Sou um aprendiz apaixonado e jogador de equipe, com histórico de liderança técnica e colaboração em squads multidisciplinares; busco desafios onde possa aplicar minha expertise em microservices, cloud e automação para causar impacto significativo.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

Marlabs Brasil

Mar 2025 - Present (9 months)

Working as a Java backend developer on cloud-based maintenance for microservices supporting Government Discount Plans (GDP), ensuring reliability and ongoing enhancements.

Java Spring Boot Microservices Cloud CI CD GitHub Actions Jira Confluence

Senior Software Engineer

Dexian Brasil

Jul 2024 - Mar 2025 (8 months)

Maintained and enhanced microservices for a Home Depot e-commerce solution using Java (11–21) and Spring Boot on GCP, improving service stability and delivery via CI/CD pipelines.

Spring Boot GCP GitHub GitHub Actions Jira Confluence Microservices

Senior Software Engineer

Instituto de Pesquisas Eldorado

Sep 2022 - Apr 2024 (1 year 7 months)

Developed and supported microservices for Lenovo using Java 17 and Spring Boot, integrating Kafka, Docker, Jenkins and databases (Postgres, MongoDB) to deliver scalable backend solutions.

Spring Boot Apache Kafka Docker Jenkins PostgreSQL MongoDB Microservices

Senior Software Engineer

BairesDev

Jan 2022 - Jul 2022 (6 months)

Contributed to eBay backend products using Java/Kotlin, Spring Boot, Kafka and Jenkins, delivering features and maintenance for high-throughput services.

Java Kotlin Spring Boot Apache Kafka Jenkins Microservices CI CD Unit Testing

Senior Software Engineer

BRQ Digital Solutions

Oct 2021 - Jan 2022 (3 months)

Developed Java 8+ microservices for banking products using Spring Boot, Swagger, JUnit and Mockito to deliver production-ready APIs and automated tests.

Java 8 Spring Boot Swagger Junit Mockito Microservices REST APIs CI CD

Senior Software Engineer

Qintess

Aug 2020 - Oct 2021 (1 year 2 months)

Worked on Dell EMC IoT backend product using Java 8, Docker and PCF, improving deployment automation and backend stability for large-scale updates.

Java 8 Docker Spring Boot PCF Shell Scripting Microservices CI CD IoT

Senior Software Engineer

CWI Software

Jan 2020 - Jul 2020 (6 months)

Maintained and modernized backend systems for a major Brazilian retailer using Java 7/8, Spring Boot, JSF and legacy stacks to ensure continuity and feature delivery.

Java 8 Spring Boot JSF Legacy Systems REST APIs Testing Refactoring

Lead Backend Developer

Isobar

Jul 2019 - Jan 2020 (6 months)

Led backend sustainment and feature development for a major North American car rental client, evaluated object-detection ML options and advanced Appway BPM integrations.

Java Backend Development Object Detection Spring APIs

Senior Java Developer

Analyst of Systems III

Defensoria Pública Geral do Estado do Ceará

Sep 2016 - Sep 2017 (1 year)

Co-led a team of 10 developers (Python and Ruby), produced technical documentation and improved functional testing and sprint selection processes to raise delivery quality.