Igor Marcel

Porto Alegre

I design and build software that ships: web platforms, mobile apps and AI that does real work.

Taking on new projects

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Igor Marcel

Six years turning messy requirements into software people depend on. Apps that run inside ambulances, platforms hospitals check in real time, ERPs that run a company, and lately, AI that removes the boring part of someone’s job.

What I can build for you

For founders who need a product out the door and teams who need a senior pair of hands.

  • Web platforms

    Dashboards, internal tools and SaaS products in React, Angular and .NET, built so the next developer can keep going without me.

    • React
    • Angular
    • ASP.NET Core

  • Mobile apps

    Android and iOS apps from first commit to store release, with CI/CD and enterprise distribution already solved.

    • .NET MAUI
    • CI/CD
    • Intune MDM

  • AI & automation

    LLM features, retrieval over your own documents, and agents that take manual steps out of real workflows.

    • RAG
    • Agents
    • Automation

  • Technical leadership

    Architecture, code standards, reviews and mentoring for teams that are growing faster than their codebase.

    • Architecture
    • Code review
    • Mentoring

Selected work

Most of it lives behind company logins, so here is what it is and where it runs.

  1. 01SAPH WebHealthcare web platform2023–2025Real-time view of healthcare facility availability for medical regulators. I led development and the team shipping it at TRUE.Angular, TypeScript, ASP.NET CoreSAPH WebProduct page ↗
  2. 02Mobile app suite6 apps in production2022–2025CHAMAR 192, SAPH Móvel, TRUE PCR, TRUE Checklist, SAPH Gestão and Unimed POA SOS, taken from Xamarin to .NET MAUI with CI/CD on Android and iOS..NET MAUI, C#, GitHub ActionsCHAMAR 192SAPH MóvelTRUE PCRTRUE ChecklistSAPH GestãoUnimed POA SOSGoogle Play ↗
  3. 03Sinos ERPERP from scratch2021Finance, inventory and operations for Sinos Tecnologia, designed and built end to end.Angular, ASP.NET Core, C#Sinos ERPCompany site ↗
  4. 04LinoHackathon, 1st place2025Front-end lead: the whole interface in React and TypeScript under hackathon time, plus the integration with the back end.React, TypeScriptLinoGitHub ↗
  5. 05PolymathechHighlight award, AGES2024Study and career-guidance platform. Front-end reference for the team, owning code standards and tooling.React, TypeScript, FigmaPolymathechGitHub ↗
  6. 06CP-PlantaData architecture2024Front end in React plus the data model and API contracts behind it.React, API designCP-PlantaGitLab ↗
  • 6+years building production software
  • 6apps live on Android and iOS
  • 2awards: hackathon and AGES
  • 3countries worked and studied in

About

I’m Igor, a full-stack engineer from Porto Alegre. I’ve been the technical reference on mobile and web teams, set up the pipelines that ship their releases, and migrated six production apps to a new framework without stopping them.

I finished an academic exchange at Hankuk University of Foreign Studies in Seoul in 2026, and I’m completing a degree in Software Engineering at PUCRS.

Portuguese (native), English (advanced), Japanese (beginner)

  1. 2022–2025

    Senior full-stack developer & technical reference

    TRUE — Tecnologia para a vida

    Architecture and reviews across teams, CI/CD for Android and iOS, Intune MDM distribution, Play Integrity, and the Xamarin to .NET MAUI migration.

  2. 2020–2022

    Full-stack developer

    Interanet IT

    Web, back-end and mobile work for Banrisul, Sulgás, Marista, Sinos Tecnologia and Aucon.

Education

  1. 2026

    Academic exchange, Software Engineering

    HUFS, Seoul

  2. 2023–now

    B.Sc. Software Engineering

    PUCRS, Porto Alegre

  3. 2020–2022

    Control and Automation Engineering

    UERGS

C#.NETASP.NET CoreTypeScriptReactAngular.NET MAUINode.jsNestJSPythonAndroidiOSAzure DevOpsGitHub ActionsAWSAzureFirebaseRAGAI agents

Let’s build something

Tell me what you need shipped. I usually reply within a day.