Gabriel Erzinger

Senior Software Engineer

Alt

Oct 2025 - Current (10 months)

Redefining how collectible assets are traded

Senior Software Engineer, Cards

Brex

Jan 2025 - Oct 2025 (10 months)

• Designed and implemented robust back-end solutions for the Cards team at Brex. This team is responsible for everything related to the company core product: we handle everything from issuing, printing, shipping and authorizing every single transaction. • Worked on high throughput and high availability distributed systems. • Drived and implemented a big portion of Brex Embedded, unlocking multiple new revenue stream for Brex. • Collaborated on front-end tasks to streamline team operations and unblock project deliveries. • Drove the adoption of integration tests in the cards domain, greatly enhancing the platform's reliability. • I have embraced AI-assisted development and participated in forums on the topic, hosting workshops for over 100 e

Senior Software Engineer, Global Limits

Brex

Jan 2023 - Jan 2025 (2 years 1 month)

Designing and implementing back-end software for the Limits Experience team. - Ideated, designed and built a saga-orchestrator framework with DAG-based policies to automate ops actions, long running business processes and targeted email campaigns — boosted employee productivity by 50%, slashed human error, and cut customer churn. - Key part of the Brex Embedded (white-label) v-team — delivered the first partnership with external partners, driving GMV growth and competitive differentiation. - Led the Financial Services Reliability initiative, establishing guidelines for handling post-mortem incidents and enhancing the overall reliability of our services. This had a huge impact in the entire org, reducing number of breached action items.

Software Engineer, Global Limits

Brex

Jan 2022 - Jan 2023 (1 year 1 month)

Building solutions using Python, Elixir and Kotlin in the limits experience team. Working remotely from Brasil. - Worked on several changes in our cash based model to identify risk signals from customers and underwrite them with safety - Improved several internal toolings, enabling the credit and operations team to move faster and with better accuracy - Had a key role in the migration from Elixir to Kotlin, migrating several microservices and hosting some meetings about Kotlin best practices

Senior Software Engineer, Payments

iFood

Mar 2021 - Jan 2022 (11 months)

The largest food delivery platform in Brazil averages millions of orders per day. - Led core payments initiatives using Kotlin, Spring Boot, AWS SQS/Kafka; mentored junior engineers to accelerate team growth - Architected & implemented Card Manager microservice (dual encrypted DBs) to achieve PCI-DSS certification - Built iFood’s PIX payment system, setting the foundation for async payment processing handling >2 k transactions/min with SQS, Kafka on Kotlin microservices - Co-designed an event-sourcing payments platform using ScyllaDB, Kafka, and CQRS — established the blueprint for future high-scalable services at iFood - Implemented temporary log tables in PostgreSQL using TimescaleDB, saving significant costs while ensuring excellent debu

Software Engineer, Payments

iFood

Feb 2020 - Mar 2021 (1 year 2 months)

Working in the payment platform team using Java, Kotlin, Spring, Golang, AWS, K8s, Docker and Postgres.

F

Full Stack Engineer

Dec 2018 - Feb 2020 (1 year 3 months)

I worked with Java, Spring, Groovy, and Kotlin to develop several core systems for the company. I utilized tools to enhance overall engineering quality, including Jenkins, Git, Docker, Kubernetes, and various AWS and GCP services and infrastructure. I monitored everything using Graphite. Additionally, I designed and implemented a financial record system for reconciliation. I briefly led the main website squad for guichevirtual.com.br, which included two developers and one QA. We worked with Node.js, TypeScript, Express, Vue.js, and Handlebars, focusing on refactoring legacy code and improving site performance.

Software Engineer Intern

Wildlife Studios

Aug 2018 - Nov 2018 (4 months)

Latin America’s biggest mobile games developer. - Worked as an intern at the backend engineering team, being responsible for developing a production-ready service for server management and monitoring using Go and exposed it as a restfull API, capable of communicate with servers via RPC using protocol buffers unknown at compile time, emulate clients and other features. - Made a responsive web interface using React, Node and Postgres for that API - Also studied storage alternatives for Redis, such as Cassandra, Aerospike, Levels and RocksDB - Overall worked with technologies such as Go, GRPC, NATS, Docker, etcd, NodeJS, React, Postgres, Redis and Git. Show less

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