Hi, I'm Marcus Paixão

Full Stack & DevOps Developer

Full-Stack Developer passionate about creating digital solutions that combine automation, AI, and user experience. I hold a degree in Systems Analysis and Development from UNIP and am always seeking new knowledge.

Available for new projects
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About Me

who I am

Hello! Welcome to my Resume and Portfolio.

I am a Full-Stack Developer with a bachelor’s degree in Systems Analysis and Development from UNIP and a technical certificate in Systems Development from ETEC Basilides de Godoy (2023).

Currently, I’m part of the Innovation and AI Squad at ALFA ERP. My focus is on developing solutions integrated with SAP Business One, creating operational automations, customer-facing web portals, and tools that accelerate implementation processes. In my day-to-day work, I build these solutions using Node.js, React, TypeScript, and PostgreSQL, connected to SAP via the Service Layer.

Earlier in my career, I worked as a Full Stack Developer at Cresci e Perdi, where I built complete web applications and managed Linux servers. In addition, I bring a solid foundation of experience in technical support, ERP systems, and databases (SQL Server) in complex corporate environments, such as JBS and KingHost. This background allows me to have a comprehensive, end-to-end perspective.

I believe that technology has the power to transform businesses and make people’s lives easier. That’s why I always strive to write efficient code and deliver solutions that have a real impact on those who use them.

3+
Years of Experience
20+
Completed Projects
10+
Technologies
3+
Companies

Soft Skills

CommunicationCreativityProactivityCritical ThinkingTroubleshootingAdaptabilityTeamworkTime ManagementAttention to detailEmpathyCuriosityEase with systemsEase of LearningCreative and dynamicInterpersonal relationshipsEase of communication

Languages

PortugueseNative
EnglishIntermediate
SpanishBasic

Skills

technical expertise

Front-End

Modern Front-End development using the main technologies on the market, such as React and TypeScript.

ReactTypeScriptTailwind

Back-End

Modern Back-End development using the main technologies on the market, such as Node.js, Python and PHP.

Node.jsPythonPHP

Database

Knowledge of creating and maintaining relational databases such as MySQL, SQL Server and PostgreSQL.

PostgreSQLMySQLSQL Server

Git and Github

Mastery of code control with Git and Github, working with all software version control techniques.

GitGitHubCI/CD

Mobile Development

Mobile development with Flutter, developing modern and optimized applications with API integrations.

FlutterDartAPI REST

Error Analysis

Experience with code analysis and optimization to maintain Clean Code techniques and troubleshooting.

DebugClean CodeDevOps

Proficient Languages

technologies I master

Proficient Languages

Familiar Technologies

daily tools

Familiar Technologies

Experience

professional journey

Feb 2026 — CurrentCurrent

Full Stack Developer

ALFA ERP•Remote

I work in the Innovation and AI Squad developing full-stack solutions integrated with SAP Business One, focusing on operations automation, customer-facing web portals and tools that speed up the SAP implementation process.

  • ▸Development of native add-ons for SAP B1 in C#, using the SAP Business One SDK
  • ▸Building REST APIs in Node.js integrated with SAP B1 via SAP Service Layer
  • ▸Elaboration and optimization of SQL queries for the SAP environment
  • ▸Analysis, correction and maintenance of existing solutions in the SAP ecosystem
  • ▸Secure and scalable integration of external systems with SAP
ReactTypeScriptPostgreSQLNodeSAP
Jul 2025 — Feb 2026

Full Stack & DevOps Developer

Cresci e Perdi•São Paulo, SP

Acting in the automation and modernization of internal systems, developing complete web applications with a focus on performance, scalability and usability.

  • ▸Web application development with React, TypeScript and PostgreSQL
  • ▸Automation of internal processes replacing manual flows
  • ▸Maintenance and evolution of the platform's infrastructure
  • ▸Creating integrated solutions to eliminate operational bottlenecks
  • ▸Ensuring the stability and sustainable growth of the system
ReactTypeScriptPostgreSQLNode.jsDockerDevOps
Dec 2024 — Jul 2025

I.T. Assistant

JBS•São Paulo, SP

Support for the corporate ERP system and development of automation in Python to optimize routines.

  • ▸Support for the corporate ERP system and resolution of technical calls
  • ▸Development of mini-programs in Python to automate tasks
  • ▸Analysis of SQL Server procedures for fault diagnosis
  • ▸Debugging legacy code in C# to support troubleshooting
  • ▸Direct assistance to users on technical system issues
PythonSQL ServerC#ERPAutomação
May 2024 — Nov 2024

Technical Support Analyst

LWSA | KingHost•São Paulo, SP

Diagnosis and resolution of problems in websites and web applications, with a focus on security and code analysis.

  • ▸Diagnosis and resolution of problems with websites and web applications
  • ▸Analysis of PHP code, MySQL queries and logs on Linux VPS servers
  • ▸Security analysis of WordPress sites and vulnerability mitigation
  • ▸Support for Node.js applications and process verification
  • ▸Customer service via chat/WhatsApp for hosting questions
PHPMySQLLinuxWordPressNode.jsVPS
Feb 2024 — May 2024

Technical Support Specialist

Atento | Lenovo•São Paulo, SP

Specialized technical support for users of Lenovo products, with real-time diagnostics.

  • ▸Technical support for users of Lenovo products
  • ▸Identification and resolution of technical problems in real time
  • ▸Diagnosis and referral to repair team
  • ▸Providing a humanized, agile and efficient service
  • ▸Ensuring customer satisfaction in every interaction
HardwareDiagnósticoAtendimento ao Cliente
Jul 2023 — Dec 2023

IT technician

Faculdade Hotec•São Paulo, SP

IT technical support for the educational institution's infrastructure and users.

  • ▸Maintaining and supporting the college's IT infrastructure
  • ▸Service and technical support for users
  • ▸Diagnosis and resolution of hardware and software problems
  • ▸Equipment configuration and maintenance
  • ▸Support for academic and administrative activities
HardwareWindowsRedesSuporte Técnico
Mar 2022 — Jul 2023

Social Media Analyst

Faculdade Hotec•São Paulo, SP

Social media management and development of a corporate website in WordPress.

  • ▸Updating social media (Facebook, Instagram and LinkedIn)
  • ▸Creating content about new and ongoing courses
  • ▸Managing live broadcasts on YouTube and Instagram
  • ▸Development of a corporate website in WordPress from scratch
  • ▸Creation of art and visual materials for social networks
WordPressRedes SociaisDesign GráficoMarketing Digital
Oct 2021 — Mar 2022

Trainee - Call Center

Faculdade Hotec•São Paulo, SP

Customer service and administrative support at the college's call center.

  • ▸Customer service in person and by telephone
  • ▸Closing and unlocking enrollments
  • ▸Preparation of spreadsheets and reports in Excel
  • ▸Registering students in the Sophia system
  • ▸The institution's range of courses and services
ExcelSistema SophiaAtendimento ao Cliente
Jun 2021 — Oct 2021

Trainee

Divino Fogão•São Paulo, SP

Restaurant trainee working in customer service and cashier operations.

  • ▸Attending to the public and answering questions
  • ▸Cashiering and closing
  • ▸Stock organization and control
  • ▸Supporting the restaurant's daily operations
Atendimento ao ClientePDVGestão de Estoque

Education

academic background

Academic Background

Feb 2024 — Jun 2026

Technologist in Systems Analysis and Development

I have completed the distance learning course, which had a total course load of 2,520 hours.

Feb 2022 — Jun 2023

Technical in Systems Development

One and a half year classroom course with a total workload of 1,200 hours.

Always learning

I believe technology is constantly evolving, so I strive to stay updated through courses, certifications, and practical projects.

Courses & Certifications

Logo Geek University (Udemy)

Python from Basic to Advanced

Geek University (Udemy)

2024

Em andamento

Logo Centro Paula Souza

Design and Photoshop

Centro Paula Souza

View Certificate
2020

16h

Logo Centro Paula Souza

Arduino & C++

Centro Paula Souza

View Certificate
2020

30h

Logo CEDESP - SENAI

Microcomputer Operator

CEDESP - SENAI

View Certificate
2019

383h

Logo CEDESP - SENAI

Electrician Installer with NR10

CEDESP - SENAI

View Certificate
2019

370h

Projects

recent work

Professional Projects

projects developed at companies

MKPACK

MKPACK

2026

Complete WordPress E-Commerce

WordPressElementorWooCommerceSEO
View Details
Remarque SP

Remarque SP

2026

Landing page creation, CEO setup, Google Ads, and Analytics

HTMLCSSSEOAnalytics+3
View Details
Fino Management

Fino Management

2026

Monorepo for a financial dashboard developed by integrating the F360 API

Node.jsNestReactVite+2
View Details
Hotec College

Hotec College

2022

Complete institutional website in WordPress with WooCommerce, developed as a first professional project.

WordPressElementor ProWooCommercePHP+2
View Details

Personal Projects

personal and experimental projects

API SPFC Calendar

API SPFC Calendar

2026

Web Scraping API to extract matches from the São Paulo FC calendar using Firecrawl.

PythonUvicornFastAPIPydantic+2
View Details
Cosmic Vision

Cosmic Vision

2025

Flutter application for exploring NASA astronomical images via the APOD API.

FlutterDartClean ArchitectureProvider+2
View Details
DNS Manager

DNS Manager

2025

Android application for managing Private DNS (DNS over TLS) with an intuitive interface and advanced features.

FlutterDartKotlinRiverpod+2
View Details
Banana Studio

Banana Studio

2026

AI imaging studio using Google's "Gemini 3 Pro Image Preview" (Nano Banana Pro) model.

ReactTypeScriptVercelSupabase+1
View Details
Petz-Life

Petz-Life

2022

ASP.NET MVC web system and Flutter app for pet health plan management, developed as a Capstone project.

ASP.NETC#FlutterDart+4
View Details
Asphalt Sneakers

Asphalt Sneakers

2024

Complete online tennis store developed in WordPress with WooCommerce and Elementor Pro.

WordPressWooCommerceElementor ProMercado Pago+2
View Details

Contact

let's talk

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