Vibraguard
Asset and work order management for maintenance teams. Link devices by QR code, monitor their status and track maintenance work in one app.
Anderson Eleutério
Mobile & Forward Deployed Engineer
I build Flutter apps for logistics and industrial IoT, and I care about what happens after they ship: how they're used in the field, where they break, and how they can make an operation run better.
Open to remote international roles.
Projects
All projects →My day-to-day work is on seven B2B apps at DDMX. These are projects I built on my own and as technical challenges, from asset management for maintenance teams to real estate search, each one end to end with Flutter. Open one to read how it was built.
Onboarding and Sign In
An onboarding flow followed by a sign-in screen, with email and password validation and clear error messages.
QR Code Scanner
Reads QR codes with the camera and creates custom ones for links, contacts, locations and Wi-Fi, ready to share or save.
Zaffre Imóveis
A real estate app to search properties with filters, publish listings, save favorites and receive push notifications.
Experience
DDMX
Mobile DeveloperMid-LevelNov 2024 — Current- Maintain and evolve seven B2B apps in production on Google Play and the App Store, from architecture and new features to testing, builds, and releases.
- Cross-platform mobile application development with Flutter (iOS and Android), delivering smooth, responsive, and scalable user experiences.
- Maintenance and enhancement of native Android applications in Java, as well as hybrid development integrating Flutter, Kotlin, and Swift to maximize performance and compatibility.
- Implementation of real-time video monitoring using external SDKs, ensuring stability and high performance in video streaming.
- Design and integration of new features, focused on usability, UX, and delivering customer value.
- Performance optimization of mobile applications, reducing response times and resource consumption.
- Migration and upgrade of projects to null safety, improving code security and stability.
- Integration of maps and geolocation features for real-time tracking and positioning, including performance optimization for map rendering.
- DAO (Data Access Object) integration for efficient data management and persistence.
- Use of WebSockets for real-time communication and dynamic map updates.
- Application of usability heuristics to improve user experience and streamline interaction flows.
IE Tecnologia
Mobile DeveloperJuniorApr 2023 — Nov 2023- Changed the API query architecture, reducing latency by 92% and developing data download functionality in CSV format to mitigate server overload.
- Implemented loading functionality with async data cache, cutting latency from 15s to 3s on incremental loads.
- Created new features to improve the panel, increasing user intuitiveness.
- Guided professionals with different experience levels, ensuring technical excellence and promoting collaborative learning.
Foursys - Soluções em TI
Mobile DeveloperJuniorOct 2022 — Feb 2023- Gained experience in teamwork and communication, applying Scrum methodology.
- Refactored codebases, improving performance and stability.
- Resolved ~85% of reported bugs and introduced new features, boosting engagement.
- Integrated software with APIs, improving data accessibility and functionality.
Foursys - Soluções em TI
Mobile DeveloperInternApr 2022 — Oct 2022I actively participated in the design of product interfaces seeking to provide a good user experience for customers of the product developed by applying design thinking techniques during the process of creating a virtual store for a company specialized in selling Apple cell phones.
In another project, I implemented features using programming logic with the Dart programming language in a project that used Flutter to create high-quality applications for Android, iOS and the Web.
In these two projects I was able to develop my communication and writing skills in addition to gaining experience in teamwork in creating software using the agile Scrum methodology.
Procon
Web DeveloperInternSep 2021 — Dec 2021I participated in the development of web applications with Angular.
Skills
Most of my work has been in logistics and industrial IoT: real-time features with WebSockets, native Kotlin and Swift SDKs integrated into Flutter, and legacy Android code modernized with Clean Architecture and BLoC.
Latest Posts
All posts →7 min read
BLoC & Clean Architecture Learning Guide
This guide explains the BLoC pattern and Clean Architecture concepts and how to apply them in Flutter projects.
- Published on
- Reading time
- 7 min read
3 min read
Offline-First Observability in a Legacy Java Mobile App
In a legacy Java mobile app, I implemented an offline-first observability pipeline that persists user-action logs locally using a DAO-backed queue and syncs them to an API only when the device is online. Logs survive restarts, are shipped in batches of 50 every 3 minutes to reduce network and battery impact, and work as a “user action stacktrace” to reconstruct flows leading to bugs. Combined with Sentry, this creates a powerful two-layer system: exceptions plus a step-by-step history of what the user did right before the issue.
- Published on
- Reading time
- 3 min read
2 min read
How to Become the Best Mid-Level Developer on the Market
A mid-level developer stands out by being autonomous, reliable, and committed to continuous growth. Unlike juniors, they handle more complex tasks, mentor less experienced teammates, and take ownership of product quality and stability. To grow, they must constantly challenge themselves, close technical gaps, and develop soft skills like communication, trade-off analysis, and collaboration. The key is never staying in the comfort zone—consistency, responsibility, and ongoing learning are what truly define the best mid-level developers.
- Published on
- Reading time
- 2 min read