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Fullstack developer · Electrical engineer

From interface
to production.

I’m Marcos. I build web applications and the systems behind them — bringing software, infrastructure, and real-world operations together.

Explore my workGitHub ↗
◎ São Luís, Brazil/Portuguese & English
Application developmentSystems & integrationsInfrastructure & deliveryNetworks & operations
01 / Contributions

Contributing across the stack.

Selected professional contributions

Application development

Team contribution

As part of a development team, I contribute to customer support and tracking platforms: React and TypeScript interfaces, messaging workflows, backend services, and REST API integrations.

ReactTypeScriptNode.jsPHP / Laravel

Delivery & reliability

Team contribution

My contributions also cover database queries, incident investigation, vulnerability remediation, and build and deployment automation for applications developed and operated by the team.

PostgreSQLDockerKubernetesGitLab CI/CD
Public repositories, containers, and practical utilities.Explore GitHub ↗
02 / Network engineering

Experience beyond the application.

Hands-on network and datacenter experience, from circuit activation and routing to monitoring, incident response, and infrastructure expansion.

[01]

Backbone & connectivity

Contributed to backbone expansion from 10G to 100G, metropolitan fiber connectivity, and the activation and maintenance of data circuits.

[02]

Routing & network operations

Network equipment configuration, connectivity troubleshooting, and local Internet Exchange maintenance, backed by training in BGP, MPLS, and IPv6.

[03]

Datacenter & monitoring

Linux server administration, NOC coordination, and integration of locally developed sensors with datacenter monitoring systems.

03 / Technical toolkit

Depth where it matters. Context across the stack.

[01]

Application development

React, TypeScript, JavaScript, Next.jsNode.js, NestJS, ExpressPHP, Laravel, REST APIs

[02]

Data & integrations

PostgreSQL, Redis, MongoDBWebSockets, MQTTMessaging & object storage

[03]

Delivery & operations

Docker, Kubernetes, LinuxGitLab CI/CD, GitOps, HelmMonitoring & vulnerability remediation

04 / Background

An engineer’s view. A developer’s craft.

My background spans electrical engineering, network operations, and technical coordination at RNP’s Maranhão Point of Presence. Experience with backbone expansion, datacenter monitoring, and incident response shapes how I build and maintain software today.

Electrical EngineeringFederal University of Maranhão
Production EngineeringPostgraduate specialization · PUC Minas
05 / Get in touch

Let’s build something useful.

For fullstack opportunities, collaborations, and technical conversations.

LinkedIn ↗GitHub ↗
Say hello