Marcos Rosado

Tech Lead | AWS · GenAI · PHP/Symfony · Flutter · Kotlin

Belo Horizonte, Brazil
marcos@marcosrosado.dev

Tech Lead with 6+ years in software engineering, currently leading two product squads (8 engineers) on a SaaS platform used by municipalities across Brazil to run public social assistance services. I've grown within the same group of companies since 2020, from intern to developer to Tech Lead.

What I bring:

  • People leadership: 1:1s, performance reviews, career development, agile delivery and roadmap alignment with Product.
  • Technical leadership: drove development and architecture decisions for a reporting and analytics platform, working alongside the Solutions Architect.
  • Cloud & infrastructure on AWS: ECS, EC2, Elastic Beanstalk, RDS (PostgreSQL/MySQL), Lambda, S3, CodePipeline.
  • Applied GenAI: designed and shipped an internal RAG support agent on Amazon Bedrock (AgentCore, Knowledge Bases).
  • Hands-on engineering: PHP/Symfony, Flutter/Dart, Kotlin/Jetpack Compose, React/TypeScript, Node.js.

Experienced building software that handles sensitive personal data under LGPD, Brazil's GDPR-equivalent law.

Experience

GESUAS, Mata Nativa and TacticUP are part of the Cientec group, where I've worked continuously since April 2020.

GESUAS

Tech Lead
  • Lead 2 cross-functional squads (8 engineers), owning delivery, technical direction, 1:1s and performance reviews.
  • Technical lead for Panorama, the company's reporting and analytics platform (Nuxt, GraphQL, PostgreSQL, AWS Elastic Beanstalk): drove development decisions and co-defined the architecture with the Solutions Architect, from initial build through ongoing evolution.
  • Designed and built an internal GenAI support agent on Amazon Bedrock AgentCore, using RAG over a Knowledge Base, including cost modelling based on real CloudWatch usage data.
  • Co-led, together with another team lead, the adoption of AI-assisted development tools across the engineering team.
  • Maintain CI/CD and cloud deployments on AWS (CodePipeline, ECS, Elastic Beanstalk, RDS).
Mar 2025 – Present
Remote

GESUAS

Mobile Developer
  • Built v2.0 of the GESUAS mobile app in Flutter (Android/iOS), used by social workers in the field to deliver public social assistance services.
Jan 2024 – Mar 2025

Mata Nativa

Software Developer
  • Built an offline-first Android app for forest inventory data collection in remote areas (Kotlin, Jetpack Compose, Room, Retrofit).
  • Developed the web frontend for forest inventory processing (React, TypeScript, Electron, Node.js, Firebase Firestore).
Jul 2021 – Jan 2024

Mata Nativa

Software Development Intern
  • Frontend development with React and TypeScript for the forest inventory web platform.
Dec 2020 – Jul 2021

TacticUP

Software Development Intern
  • Frontend development (React, TypeScript, Node.js) for a platform that assesses football players' game-reading skills.
Apr 2020 – Dec 2020

Portfolio

GESUAS Application V2.0

Flutter Full Stack
Available on Google Play and soon on the App Store.
GESUAS Homepage

Development of version 2.0 of the GESUAS app. It is used to carry out social assistance work in the field and complements GESUAS Web, a reference system for SUAS (Brazil's Unified Social Assistance System).
The app is built in Flutter for Android, with iOS coming soon.

Technologies used: Flutter | Dart | RESTful APIs | Scrum

Jan 2024 – Present

Mata Nativa Coletor

Android Full Stack
Mata Nativa Coletor on Google Play.

Development of Mata Nativa Coletor, the new version of the Mata Nativa data collection app. It is used to collect forest inventory data in the field. The app works offline and periodically syncs with the main system.
Built with Kotlin and the latest AndroidX libraries.

Technologies used: Native Android | Kotlin | AndroidX Libraries | Jetpack Compose | Room | Retrofit | Scrum

Nov 2022 – Dec 2023

Mata Nativa Web

Front-End
Mata Nativa Homepage.

Front-end development of Mata Nativa Web. The system provides tools for processing forest inventories.

Technologies used: React.js | TypeScript | Node.js | Firebase Firestore | Scrum

Dec 2020 – Dec 2023

TacticUP

Front-End
TacticUP Homepage.

Front-end development of TacticUP, a platform that assesses football players' game-reading and decision-making skills.

Technologies used: React.js | TypeScript | Node.js

Apr 2020 – Nov 2020

Education

PUC Minas

Bachelor's degree in Information Systems
Feb 2023 – Jul 2026

Skills

Languages and technologies
Core competencies
  • Leadership: Engineering Management, Technical Leadership, People Management, Agile/Scrum
  • Cloud & DevOps: AWS (ECS, EC2, Elastic Beanstalk, RDS, Lambda, S3, CodePipeline), Docker, CI/CD
  • AI: Amazon Bedrock (AgentCore, Knowledge Bases), RAG, Generative AI
  • Backend: PHP, Symfony, Node.js, Python, REST APIs
  • Data: PostgreSQL, MySQL
  • Mobile: Flutter/Dart, Android (Kotlin, Jetpack Compose)
  • Frontend: React, TypeScript, JavaScript, HTML5, CSS
  • Architecture: Software Architecture, System Design
  • Compliance: Data privacy (LGPD)
Languages

Portuguese (native) · English (fluent, full professional proficiency)