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Rogério Moreira

@rogriomoreira

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Senior Backend Engineer with strong experience in Java, backend development, APIs, and scalable applications.

Portugal

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What I'm looking for

I’m looking for a collaborative, low-ego team with a relaxed but delivery-focused culture. I value pragmatic engineering, clear communication, shared ownership, and people who enjoy working together. I’m especially interested in modern backend technologies, system modernization, and practical AI/LLM integrations.

Senior Backend Engineer with 14+ years of experience designing, building, and modernizing reliable backend systems and APIs.

I specialize in Java and JVM-based technologies, distributed systems, event-driven architectures, databases, and cloud-native application development. My work spans the full software lifecycle, from architecture and API design to implementation, testing, observability, performance, and production operations.

I’m particularly comfortable working on complex systems, modernizing legacy platforms, integrating external services, and building scalable backend solutions with a strong focus on maintainability and engineering quality.

I enjoy solving challenging technical problems, collaborating with cross-functional teams, and continuously improving both systems and development practices. I’m currently looking for a remote backend or software engineering role where I can contribute to technically meaningful products and experienced engineering teams.

Experience

Work history, roles, and key accomplishments

Senior Backend Developer

Prozis

Apr 2019 - Jun 2026 (7 years 2 months)

Responsible for the backend of Prozis GO, a Java REST API with Cassandra, serving a health and fitness platform. Implemented event-driven workflows, migrated the main API to Quarkus and Java 21, and developed the Nutrition service with PostgreSQL and Elasticsearch.

Java REST APIs Cassandra Kafka Quarkus PostgreSQL Elasticsearch Event Driven Architecture OpenAI Docker Kubernetes

Software Developer

Critical Software

Aug 2018 - Feb 2019 (6 months)

Developed and maintained a banking application for tradable financial assets, implementing features in Java EE 7 with JAX-WS, Java Batch API, EclipseLink, ZK framework, and TestNG.

Java EE 7 JAX WS Java Batch API (JSR 352)EclipseLink ZK framework TestNG Design Patterns

Backend Developer

Natixis

Mar 2017 - Jul 2018 (1 year 4 months)

Contributed to the full lifecycle of an authentication and access-control application for banking transactions. Developed with Spring Boot, Spring MVC, Spring Security, and Spring Data, collaborating with international stakeholders on security-sensitive flows.

Spring Boot Spring MVC Spring Security Spring Data Authentication Access Control Banking Security

Software Developer

Noesis

Jul 2012 - Feb 2017 (4 years 7 months)

Developed applications for Quality Assurance teams, integrating with enterprise tooling such as IBM Rational, Microsoft Team Foundation Server, and CA Harvest. Worked with clients in telecommunications, payments, and retail sectors.

IBM Rational Microsoft Team Foundation Server CA Harvest Quality Assurance Application Development