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Lucas – Flutter, UML, Android, experts in Lemon.io

Lucas

From Brazil

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Mobile DeveloperStrong senior
Hire developer
17 years of commercial experience
Art and creativity
Automotive
Energy
Fintech
Healthcare
Medtech
Music and audio
Embedded software
Mobile apps
Platforms
Lemon.io stats
1
projects done
760
hours worked
Open
to new offers

Lucas – Flutter, UML, Android

Lucas is a Flutter developer with a keen eye for design and an unwavering commitment to code quality and UX. With over a decade of experience building mobile apps, including at Spotify, he has a growth mindset and a drive for excellence that inspires those around him. His colleagues praise his ability to challenge the status quo during planning, asking insightful questions that help drive the project forward.

Main technologies
Flutter
4 years
Additional skills
UML
Android
Spring
Scrum
Apache Tomcat
Hibernate
JUnit
Java
Eclipse
Dart
Firebase
BLoC
Web Sockets
Pandas
Python
AWS Lambda
GitHub Actions
CI/CD
Fastlane
Ready to start
ASAP
Direct hire
Potentially possible

Experience Highlights

Co-Founder, VP of Software
Feb 2020 - Ongoing4 years 3 months
Project Overview

A Health Tech startup that manufactures devices that measure the quality of the environment and stream that data to the cloud. The data is presented to users with two products:

  • A monitor installed in ICUs shows real-time information and is powered by a Flutter app running on a Raspberry PI
  • A mobile app and website that extends the above and allows managers to get complete reports and insights.
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Responsibilities:
  • Defined the architecture of frontend and backend applications
  • Guided team on following best practices
  • Implemented first versions of the monitor and the backend
  • Implemented lambda functions for data analysis using Python and Pandas
Project Tech stack:
Flutter
Python
Firebase
AWS Lambda
Pandas
Senior Mobile Engineer
Feb 2023 - Apr 20232 months
Project Overview

The UK’s leading innovator in smart EV charging. They manufacture EV chargers and provide a companion app for customers to monitor and control their devices. Their app had a serious problem keeping its state in sync with the server. That meant, for instance, that the app would show the charger idled when it was being used and vice-versa. Lucas was brought in to help solve the problem.

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Responsibilities:
  • Analyzed the entire codebase and found problems with the architecture
  • Wrote an architectural proposal and oversaw the initial phase of development
  • Implemented a new package for managing web socket communication. This package had features like an automatic reconnection, Internet awareness, and backoff strategy, besides following the json rpc protocol correctly
Project Tech stack:
Flutter
Web Sockets
BLoC
Senior Flutter Engineer
Oct 2021 - Jan 20231 year 3 months
Project Overview

A startup that helps Americans build credit and financial power through recurring payments and subscriptions every day.

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Responsibilities:
  • Advocated about the importance of appropriately handling loading and error states, which turned into a designer/developers effort that improved the app's UX
  • Single-handedly implemented CI/CD pipelines, using GithubActions and Fastlane, that resulted in weekly releases and, therefore faster time-to-market for features and bug fixes
  • Mentored junior developers regarding code quality and the importance of unit tests
Project Tech stack:
Flutter
GitHub Actions
CI
CD
Firebase
Flutter Engineer
Nov 2019 - May 20211 year 6 months
Project Overview

A Spotify company that offers tools for musicians to compose and edit their songs.

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Responsibilities:
  • Spearheaded architectural decisions (like migrating from BLoC to MobX) that allowed the team to deliver new features with high performance
  • Proactively implemented a Continuous Integration solution using in-house infrastructure
  • Streamlined the release process using Fastlane
  • Advocated for the importance of managing tech debt and is in the process of defining guidelines and standards around software architecture and testing practices
Project Tech stack:
Flutter
Fastlane

Education

2010
Computer Science
Bachelor's Degree
2012
Applied Computing
Master's Degree

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