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Carlos D.

Carlos D.

Java Senior Developer / Web Developer

With over 20 years of experience in software development and technical leadership, primarily within banking, financial services, and large-scale enterprise environments, I bring a strong combination of hands-on engineering expertise, architectural vision, and team leadership. Throughout my career, I have led and contributed to the design, development, and modernization of complex distributed systems, with a strong focus on microservices, systems integration, and cloud-native architectures. In my most recent roles as a Java Tech Leader in the banking sector, I have been responsible for leading multiple agile teams, aligning product, architecture, and development, and ensuring high standards of code quality, scalability, and reliability. I have extensive experience with Java, Spring Boot, Quarkus, and Java EE, building microservices and ETL solutions integrated through event-driven architectures using Kafka and RabbitMQ. I am a strong advocate of Clean Code, Clean Architecture, and Test-Driven Development, with deep hands-on experience using JUnit, Mockito, Testcontainers, and CI/CD pipelines built with GitHub Actions and Kubernetes. My work has also included observability and production monitoring using tools such as Grafana, Dynatrace, Jaeger, Kibana, and Azure Monitor. In addition to my technical background, I bring a solid understanding of product delivery, stakeholder alignment, and agile practices. I have worked as a Tech Lead, Team Leader, and Product Owner, which allows me to effectively bridge the gap between business and technology. I am comfortable driving technical decisions, mentoring developers, reducing technical debt, and introducing innovation—recently including the practical adoption of AI-assisted development tools to improve productivity and code quality. I have worked extensively with cloud platforms such as AWS, Microsoft Azure andGoogle Cloud Platform, and with databases including PostgreSQL, MongoDB, IBM DB2, and SQL Server. My background in systems integration spans e-commerce, payments, CRM, IoT, and large financial institutions, giving me a broad and adaptable perspective.

🇧🇷Dois Córregos, Brazil$30/hr100% JSS4.94 (4)Since Apr 2015

Earnings and projects

MRR
$0

Last 6 months ÷ 6

World#168,650 / 412k
🇧🇷Country#1,780 / 4,647
Revenue, last 30 days
—

Read daily since Oct 29, under 30 days

Total earnings
$14k

Billed in all: $23k

World#168,650 / 412k
🇧🇷Country#1,780 / 4,647
Per project
$2.3k
Projects, last 6 months
0
World#209,850 / 412k
🇧🇷Country#2,400 / 4,647
Projects in all
6

Across 7 contracts

14% fixed86% hourly
World#250,290 / 412k
🇧🇷Country#2,331 / 4,647

Earnings, last 30 days

$23.3kNothing earned since Oct 29Billed in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$23,000$23,250$23,500$23,750Oct 29Nov 3Nov 7

Tracked from Oct 29, 2026.

Skills