Summary
Overview
Work History
Skills
Websites
Languages
Timeline
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Paulo Rogério Coelho de Oliveira

Gravataí, Rio Grande Do Sul

Summary

Results-oriented Back-End Developer with 25+ years of experience in C#, .NET, .NET Core, and Entity Framework, specializing in building scalable and secure RESTful APIs and enterprise software solutions. Strong background in system architecture, cloud integration (AWS), and process automation. Proficient in microservices, DDD, SOLID, and Clean Architecture, with hands-on experience in relational databases and full project lifecycle. Passionate about turning business needs into high-performance digital solutions, with proven leadership in managing development teams and delivering impactful products.

Overview

27
27
years of professional experience

Work History

Chief Executive Officer

Pontual Sistemas
11.2011 - Current
  • Founded and scaled a custom software company, delivering cutting-edge solutions for major clients.
  • Delivered a complete financial automation system, including AP/AR, automatic invoice recognition using AI, and WhatsApp bot integration.
  • Developed crawlers to collect utility bills automatically from supplier websites.
  • Led all architecture using REST APIs, DDD, and modern backend stacks to ensure extensibility and scalability.
  • We use many AWS resources to operate our services.

Software Project Manager

Pontual Distribuidora de Materiais Hospitalares
01.2006 - 09.2011
  • Hired to build an in-house dev team and migrate from a legacy Visual Basic 6 system to a modern architecture.
  • Designed and delivered a robust e-commerce platform in C# with RESTful APIs and DDD, enabling pharmacies to place online orders.
  • Led development of a comprehensive ERP with inventory control, mobile field sales, logistics, billing, financials, and tax systems.
  • Boosted operational efficiency by implementing mobile sales tools and an automated billing engine.

Software Developer

HE Sistemas Empresariais
05.1998 - 01.2025
  • Engineered tailored solutions for various industries including auto parts, supermarkets, food distributors, clubs, and pharmacies.
  • Provided strategic technical consulting to help clients define ideal software paths for business maturity.
  • Acted as a full-cycle developer: requirements gathering, database modeling, implementation, and delivery.
  • Built strong client relationships through consistent delivery of reliable and adaptable software systems.

Skills

  • Languages & Frameworks: C#, NET Core, NET Framework, ASPNET MVC, Visual Basic
  • Databases: PostgreSQL, MySQL, SQLite
  • Architecture & Practices: RESTful APIs, Entity Framework, Clean Architecture, DDD, TDD, SOLID
  • Cloud & DevOps: AWS (Amazon Web Services), CI/CD pipelines
  • Automation & AI: OCR/AI for document parsing, Web Crawlers, WhatsApp Bots
  • Leadership & Management: Team Leadership, Project Management, Agile Development

Languages

Portuguese (Brazilian) – Native
English – Basic reading ability; currently studying to improve comprehension and communication skills

Timeline

Chief Executive Officer

Pontual Sistemas
11.2011 - Current

Software Project Manager

Pontual Distribuidora de Materiais Hospitalares
01.2006 - 09.2011

Software Developer

HE Sistemas Empresariais
05.1998 - 01.2025

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Paulo Rogério Coelho de Oliveira