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Arthur Botelho Costa

@arthurbotelhocosta

Message

Backend developer specializing in Java/Kotlin, AWS, and scalable systems.

Brazil

Message

What I'm looking for

I seek backend roles focused on scalable, cloud-native systems in collaborative, agile teams where I can grow technically and contribute to high-impact banking or finance products.

I am an experienced backend developer with four years building robust, scalable systems using Java, Kotlin, Spring Boot and cloud platforms such as AWS. I have delivered solutions in banking contexts—working on investments reporting, data reconciliation for large client bases, and account-data features—applying clean architecture, SOLID principles, and a quality-driven mindset.

I collaborate well in agile teams and value learning from senior engineers; I bring hands-on experience with Kafka, Docker/Kubernetes, CI/CD (Jenkins), and a variety of databases (PostgreSQL, MySQL, MongoDB, Oracle). I focus primarily on backend engineering while remaining familiar with frontend technologies like React and TypeScript.

Experience

Work history, roles, and key accomplishments

Current

Mid Backend Engineer

Current

Invillia

Apr 2024 - Present (1 year 6 months)

Developed investment data reconciliation systems for PagBank handling datasets of over 500,000 clients; implemented reporting pipelines using Kotlin (GraalVM), Kafka, Kubernetes and OracleDB to improve backoffice processing latency and reliability.

Kotlin GraalVM Kafka Kubernetes Spring Boot Docker AWS Distributed Systems

Software Engineer

Itaú Unibanco

Dec 2022 - Jan 2024 (1 year 1 month)

Built customer data update features using Java, Python and AWS services to enable self-service and manager-assisted account updates, improving data accuracy and customer experience.

Java Python AWS REST APIs Spring Boot SQL Microservices CI CD Testing

Backend Developer

Wipro

Nov 2021 - Sep 2022 (10 months)

Developed BIA AI chat features for WhatsApp and web chat using Java Spring Boot and microservices, and authored BDD tests (Cucumber) to ensure quality for the Bradesco team.

Java Spring Boot Microservices BDD Cucumber REST APIs Jenkins Docker MySQL

Fullstack Developer

Find Soluções

Jan 2021 - Oct 2021 (9 months)

Planned, developed and refactored backend and frontend features for a mobile app used by city halls, using Java Spring Boot, Node.js/TypeScript and AngularJS with MySQL/PostgreSQL/MongoDB.