Open to workSanta Maria, RS · Brazil

Engineering
that scales.

Software engineer with 5+ years across fintech, unified commerce and public administration. Currently Tech Lead at Stefanini Group — architecting high-traffic checkout, payment integrations and event-driven systems.

5+
years shipping
6
projects delivered
Q1
published research
Selected work

Enterprise systems, shipped.

Trajectory

Six years, three domains.

2026Present

Tech Lead

Stefanini Group · Remote

Lead engineering squads on white-label unified-commerce checkout. Architecture decisions, third-party integration standards, AI-assisted workflows, 1:1s and mentoring.

TypeScriptNode.jsNext.jsAWS
20252026

Senior Software Engineer

Stefanini Group · Remote

Fullstack checkout module for a large-scale unified-commerce platform. Critical payment flows, PCI compliance, Clean Architecture. Promoted to Tech Lead in 6 months.

TypeScriptReactClean ArchitectureDocker
20252025

Senior Backend Developer

Meta · GetNet · Remote

Chargeback routines for a top Latin-American payments platform. Event-driven microservices; direct Visa / Mastercard / AMEX integration.

Node.jsMongoDBRabbitMQKubernetes
20252025

Tech Lead

Jetimob · Remote

Led 6 developers on a SaaS platform with 2,000+ sites. Event-driven architecture, ETL, full CI/CD. PostgreSQL −83% size, 250% faster queries.

TypeScriptKafkaPostgreSQLAWS
20242025

Fullstack Developer

Jetimob · Remote

White-label platform for 2,000+ real-estate sites. React → Next.js SSR (−75% load time), technical SEO, automated testing culture.

ReactNext.jsNestJSJest
20212024

Fullstack Developer

AVMB IT Solutions · Santa Maria, RS

Public-administration web systems. Led a municipal Transparency Portal; modernised large-scale legacy Delphi products.

DelphiSQLNode.jsReact
About

An engineer who leads.

I started in telecommunications engineering — channel estimation, neural networks, published research — and brought that rigor into software.

Today I lead engineering teams building payment systems and unified-commerce platforms that run at real scale. I care about architecture that survives growth, pipelines that ship safely, and the unglamorous work of making large systems fast and reliable.

As a Tech Lead I spend as much time unblocking people as writing code: pairing, reviewing, running honest 1:1s, and translating between product and engineering. Direct, structured, outcome-driven — I’d rather show the number than describe it.

Education

BSc, Telecommunications Engineering

Federal University of Santa Maria (UFSM) · 2017 — 2024

Thesis: Deep Learning for Channel Estimation & Joint Signal Detection in GFDM. Published in a Q1 Elsevier Signal Processing journal (neural networks for 5G).

How I work

Lead with outcomes

Every decision ties back to measurable impact — latency, cost, reliability.

Architect for change

Clean & hexagonal boundaries so systems stay testable as they grow.

Unblock the team

Pair programming, sharp code reviews, honest 1:1s. Ship together.

Engineer’s rigor

A telecom-engineering background and published research — depth, not guesswork.

Toolkit
Languages
TypeScriptJavaScriptNode.jsGoSQLPython
Backend & arch
NestJSExpressGraphQLMicroservicesHexagonalClean ArchDDD
Frontend
ReactNext.jsTailwindHTML5CSS3
Data & events
PostgreSQLMongoDBRedisKafkaRabbitMQAzure Service Bus
DevOps & cloud
DockerKubernetesAWSAzureOracle CloudCI/CDGitHub Actions
Let’s talk

Building something that needs to scale — or a team that needs leading? I’d like to hear about it.

© 2026 Marcos Nascimento · Santa Maria, RS · Set in Space Grotesk & JetBrains Mono