Available for opportunities
Lucas Moraisbuilding scalablesystems.
>Backend Architect
>Full-Stack Engineer
>Distributed Systems
>Legacy Modernizer
Software Engineer specializing in backend architecture and system scalability. Since 2017, building resilient platforms for oil & gas and logistics — modernizing legacy systems, designing microservices, and making operations measurably faster.
~/system-status.sh
$ uptime
→ 9y 4mo · 99.97% SLA
$ services --status
api-gatewayhealthy
auth-servicehealthy
data-pipelinehealthy
risk-advisorhealthy
CPU38%
MEM70%
RPS1,240
▍ Building scalable systems @ Intelie
01Architectural Overview
Systems I've designed, shipped, and modernized.
A look at the patterns I reach for — from event-driven pipelines to multi-tenant SaaS architectures across the oil & gas and logistics sectors.
EVENT-DRIVEN
Real-time data pipelines
Atria — pilot for real-time ML data processing across thousands of antenna sensors. Proactive fault detection, reduced maintenance cost.
KafkaSpring BootPostgreSQLK8s
DOMAIN MODELING
Common Data Framework
Centralized persistence base eliminating redundancy across O&G projects. ~100 entities modeled with subject-matter experts.
DDDJPA/HibernatePostgreSQLJava
SECURITY
License & access control
Architected a system that protects IP and revenue by gating product features per contracted plan, with strategic sign-off from leadership.
MicroservicesSpringDockerOAuth2
02Technical Stack
The toolkit, by layer.
What I reach for when designing services — biased toward boring, battle-tested technology that scales without surprises.
Backend
JavaSpring BootNode.jsPythonKotlinRust
Frontend
ReactTypeScriptNext.jsTailwind CSSJavaScript
Data & Messaging
PostgreSQLRedisKafkaRabbitMQ
Cloud & Infra
DockerKubernetesAWSAzureLinuxNginx
9+
years shipping
100+
entities modeled
12+
services architected
99.97%
SLA uptime
06Contact
Let's build something solid.
Have a project in mind, want to talk architecture, or just need a sparring partner on a hard backend problem? My inbox is open.
Email
lucascdemorais@gmail.com
GitHub
@lucasheartcliff
LinkedIn
/in/lucasheartcliff
Location
Rio de Janeiro, Brazil · UTC−3
CURRENT STATUS
Open to senior / staff backend & platform roles.
© 2026 Lucas Morais · built with care▍ v2.0