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Cristiano Altmann

@cristianoaltmann

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Senior backend engineer at Upgrade, Inc. working on distributed financial systems with Java, Kafka, and PostgreSQL.

Brazil

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What I'm looking for

I'm interested in senior backend and platform engineering roles involving distributed systems, event-driven architecture, cloud-native platforms, high-scale systems, system design, and technical leadership.

At Upgrade, Inc., I work on financial technology platforms, evolving distributed backend systems with Java, Spring Boot, Kafka, Kafka Streams, and PostgreSQL. I contribute to architecture and system design for event-driven workflows, service integrations, and incremental migrations.

Previously, at Vigil, I worked on an asynchronous marketing platform using Kafka to process events and create campaign views. Across financial and logistics systems, I’ve contributed to platform evolution, reliability, and engineering practices; I’m interested in senior backend and platform roles focused on distributed systems, cloud-native platforms, and technical leadership.

Experience

Work history, roles, and key accomplishments

Current

Software Engineer

Current

Upgrade, Inc.

May 2023 - Present (3 years 4 months)

Designed and evolved distributed backend systems for large-scale financial technology platforms using Java, Spring Boot, Kafka, and PostgreSQL. Contributed to architecture, system design, and platform evolution initiatives focused on scalability, reliability, and performance.

Java Spring Boot Kafka Kafka Streams PostgreSQL Distributed Systems Event Driven Architecture CI CD Testing Automation Claude Code

Software Engineer

Vigil

Nov 2021 - Mar 2023 (1 year 4 months)

Built an asynchronous marketing platform for an online game and casino company using Kafka as the message broker. Consumed and processed events from various company areas, created views and campaigns, and produced new events for other teams.

Microservices AWS Kafka Java Spring Boot MongoDB PostgreSQL Event Driven Architecture Avro Confluent Schema Registry Docker Terraform GoCD Maven Kafka Streams REST APIs

Technical Lead

Mercado Livre

Nov 2020 - Nov 2021 (1 year)

Worked on backend systems in the logistics domain, contributing to services that supported operational workflows at scale. Acted as a technical reference for the team, supporting architectural decisions, code quality, and delivery planning.

Microservices Event Driven Architecture Go MySQL Cloud Native Git Testing

Software Engineer

Sicredi

Nov 2018 - Oct 2020 (1 year 11 months)

Worked on credit development teams focused on pricing systems, guarantees, and electronic signatures. Contributed to architecture definition and development of microservices-based solutions using CQRS and event-driven communication.

Java 11 Spring Cloud Stream Kafka MongoDB MySQL REST APIs CQRS Microservices Event Driven Architecture

Software Architect

ilegra

Nov 2016 - Nov 2018 (2 years)

Helped define, implement, and support adoption of a microservices development platform for a banking core project. Fostered agile development culture and led a development team, focusing on engineering practices and code review.

Java 8 Spring Boot Netflix OSS Components Kafka Spring Cloud Grafana InfluxDB Kubernetes Docker Jenkins Git Gradle

Software Engineer

NeoGrid

Dec 2012 - Nov 2016 (3 years 11 months)

Performed analysis, design, and development of B2B applications for large customers, including specific projects and company products. Also involved in the selection process, analyzing résumés, exams, interviews, and ranking candidates.

Java 6 Java 8 JSF RichFaces HTML CSS JavaScript jQuery EJB JPA JBoss Seam Web Logic Spring Boot JAX RS (Jersey)JIBX JDOM REST SOAP APIs Junit Mockito Hamcrest Maven SVN

Software Engineer

Grupo RBS

Jul 2012 - Dec 2012 (5 months)

Worked as a software developer on a restaurant search platform, including website and search applications and management software. Used crawlers and batch processing for massive data uploads.

Java J2EE 5 EJB 3 JPA JSF Oracle Database HTML JavaScript jQuery SOAP Web Services

Software Engineer

Grupo Meta

Jun 2011 - Jun 2012 (1 year)

Worked as a software developer on a restaurant search platform, including website and search applications and management software. Used crawlers and batch processing for massive data uploads.