Lucas De L.

Professional Summary

Backend Engineer with 7+ years of experience designing, building, and maintaining high-performance, event-driven distributed systems. I specialize in Java (Spring Boot, Micronaut), Kotlin, and Go, focusing on scalability, reliability, and clean architecture.

Currently part of the iFood Pago financial platform team, delivering payment infrastructure and mission-critical integrations across multiple microservices. I have a proven record of improving system resilience, reducing latency, and ensuring observability and data consistency across large-scale environments.

Core strengths:

Event-driven architecture and messaging (Kafka, Redpanda, SQS, SNS, Webhooks)

Cloud-native microservices (Docker, Kubernetes, OpenShift)

CI/CD (Jenkins, GitHub Actions, Azure DevOps)

Observability and monitoring (Datadog, Lens, Logz.io, Stern)

Strong focus on code quality, Clean Architecture, and SOLID principles

Technical Skills

Languages: Java 8–21, Kotlin, Go, SQL, PL/SQL, Rust (learning)
Frameworks: Spring Boot, Micronaut, JPA/Hibernate, REST, gRPC
Databases: PostgreSQL, MySQL, Oracle, MongoDB
Messaging: Kafka, Redpanda, AWS SNS/SQS, Webhooks
DevOps & Cloud: Docker, Kubernetes, Jenkins, Azure DevOps, OpenShift
Observability: Datadog, Logz.io, Lens, Stern
Architecture: Hexagonal, Clean Architecture, DDD, Event-Driven Design
Tools: Git, Swagger, Flyway, MapStruct

Professional Experience
iFood – Software Engineer

June 2024 – Present

Delivered end-to-end backend solutions for financial operations on iFood Pago, focusing on performance, scalability, and observability.

Implemented critical payment features including PIX refunds, credit and boleto payments, and scheduled transfers.

Spearheaded the Paysmart → Zoop migration, ensuring zero downtime and data integrity across millions of records.

Drove architectural refactors improving system efficiency and fault tolerance in a distributed microservices ecosystem.

Collaborated cross-functionally with product, data, and infrastructure teams to deliver resilient APIs.

Tech stack: Java, Kotlin, Go, Kafka, Redpanda, SQS, Kong, Datadog, Docker, Kubernetes.

South System – Senior Software Engineer

Jul 2023 – Jun 2024

Built PL/SQL procedures and plugins integrated with Java microservices for card lifecycle management.

Delivered automation for card activation/deactivation, improving issuer processing time.

Enhanced monitoring through Datadog and CI/CD pipelines with Jenkins and Docker.

Act Digital – Tech Lead

Oct 2022 – Jun 2023

Led a cross-functional team developing a virtualization sandbox for secure card APIs.

Implemented card tokenization services ensuring compliance and reliability.

Oversaw architecture evolution with Spring Boot, PostgreSQL, Kubernetes, and Docker, while mentoring junior engineers.

Datum TI – Senior Software Developer

Jun 2021 – Oct 2022

Supported Getnet and Lojas Renner projects migrating legacy services to cloud environments.

Implemented microservices integrating Kafka, MongoDB, and MySQL, deployed on Azure DevOps and Kubernetes.

Contributed to data pipeline automation using Azure Synapse, Data Factory, and Data Lake.

Previous Roles (2018–2021)

Viaflow, Ilegra, CWI Software, RCA Digital – Software Developer

Built REST APIs and e-commerce integrations for retail and financial clients.

Worked with Java 11, Spring Boot, WebFlux, Oracle DB, and TDD methodologies.

Collaborated on projects for clients such as John Deere, Whirlpool, and Dimed Group.

Education

Bachelor’s in Systems Analysis and Development – Unisinos University (Completed)
English Level: B2 Intermediate (Conversational & Technical)

Soft Skills

Strong problem-solving and analytical thinking

Excellent team collaboration and communication

Proactive mindset and ownership mentality

Passion for architecture, clean code, and mentoring