Marcelo Glasberg
Senior Software Engineer
AI • Full stack • Mobile • Web
Professional
Please see my LinkedIn.
I’ve led teams that built and launched mobile apps for American startups like Kalshi (B2C fintech), Parkside (B2B fintech), and Pid (B2B2C marketplace) on both iOS and Android. I’m currently architecting and developing an AI agent for MyText.ai (B2B), handling research and development, and both frontend and backend for the web platform.
The app I built for Kalshi was shown in South Park S275 ‘Conflict of Interest’, Sep 24, 2025
Technologies
- AI. LLMs. Prompt engineering. Workflows and Agents. OpenAI, Anthropic. Diffusion models.
- React Native. React. Redux, MobX, Zustand, TanStack Query (React Query)
- Dart/Flutter (Android and iOS mobile apps, web and Desktop). Bloc, Redux, MobX, Provider
- Android native in Java/Kotlin. iOS native in Swift
- AppStore and Google Play. Approving and launching apps.
- JavaScript/Typescript. HTML/CSS. Web apps, SPA. Tailwind CSS, shadcn.
- Next.js, Vite, Astro, Docusaurus, Angular, jQuery
- Java, Hibernate/JPA, JUnit, Mockito.
- Python, C#. C++ (past experience)
- SQL, MySQL, PostgreSQL, NoSQL
- Analytics. A/B testing. Performance monitoring and error tracking
- UI/UX. Product Engineering. HCI and UX research. Design language and system. Rtl languages
- Figma. Affinity Photo
- Amazon Lambda, S3, DynamoDB, IAM, Cognito
- Google Firebase, Cloud Firestore, Google Cloud Storage, Cloud Functions, PubSub, BigQuery
- Event Tracking and Error monitoring: Amplitude, Sentry, Crashlytics, Datadog
- REST, GraphQL, gRPC. API design / Networking
- Microservices. Distributed Systems. Kubernetes. Docker. Kafka. Load balancing.
- Agile. Kanban. CI/CD. Git, GitHub. Jira. Clean Code. Testable code. Quality. SOLID. Design Patterns
- TDD (Test Driven Development), Unit testing, Integration testing. BDD (Behavior-Driven Development).
- Software architecture. System design. Documentation
- Cryptography. Immutable data structures
- Performance optimization and reliability. Debugging and Profiling
- Online payments. Fintech. KYC. Trading Systems. Stock market. Cryptocurrencies
- Localization and internationalization. Plugin development for the IntelliJ IDE
- Mentoring/Coaching. Remote teams. Excellent communication skills and technical writing
My Code
- GitHub - lots of open source repos
- npm - 2 packages
- pub.dev - 16 packages
- StackOverflow - 30,900+ points
Open Source Projects
An extensive body of my work is open source, covering a broad range of topics:
- TypeScript / JavaScript
- Easy BDD Tool — Developer-centric behavior-driven development.
- React / React Native:
- Kiss State — State management, for React.
- Rick and Morty App — Example app using Kiss State (source).
- Same App Different Tech — The same app implemented with different tech stacks.
- Dart:
- Fast Immutable Collections (FIC) — Immutable data structures
- BDD Framework — Developer-centric behavior-driven development, for Dart/Flutter.
- Weak Map — Memoization and weak-references
- Matrix4 Transform — Math package
- Flutter:
- Async Redux — Redux state management without the boilerplate, for Dart/Flutter (source)
- Provider for Redux — Lets you use Provider with Redux
- I18n Extension — Internationalization and localization
- Align Positioned — Layout
- Network to File Image — Image handling
- Image Pixels — Image processing
- Back Button Interceptor — Android navigation
- Indexed List View — UI/UX
- Animated Size and Fade — UI/UX
- Assorted Layout Widgets — UI/UX
- Themed — UI/UX
- Java / Kotlin:
- Hibernate Inspections Plugin for IntelliJ (GitHub) 35,600+ Downloads since 2015
- Marcelo’s Flutter/Dart Essentials Plugin for IntelliJ (GitHub) 1,100+ Downloads since June 2023
Academic
- Aeronautical-Mechanical Engineer — Technological Institute of Aeronautics (ITA), São Paulo; the very top engineering university in Brazil, founded by MIT professors.
- MBA — Management and Administration Institute (IAG) of the PUC-RJ University, Rio de Janeiro, Brazil
Patents
I am the sole inventor of the following patents, and I filed them myself in the USPTO.
- US7596530B1 - United States Patent and Trademark Office (USPTO) — Cryptography for payments
- US7917437B1 - United States Patent and Trademark Office (USPTO) — Cost reduction for payments
Technical Writing
I wrote Google’s official Flutter documentation on layout rules:Also published here:
- English version - The Advanced Layout Rule Even Beginners Must Know
- Russian version - Правила компоновки во Flutter, которые должен знать каждый
- Turkish version - Herkesin Bilmesi Gereken Temel Layout Kuralları
- Portuguese version - A Regra de Layout Avançado que até Iniciantes Devem Saber
My article’s catchphrase, "Constraints go down, Sizes go up, Parent sets position" has been featured on mugs sold at Flutter conventions.
Articles
- A new BDD tool for TypeScript, JavaScript and Dart (and a practical BDD Tutorial)
- Async Redux: Flutter’s non-boilerplate version of Redux
- i18n? Mind-blowing Easy Translations and Internationalization for Flutter
- Announcing FIC: Fast Immutable Collections
- The New Way to create Themes in your Flutter App