Hi, I'm Lucas.
Senior Mobile Engineer.

Munich, Germany

Building scalable architectures and owning the entire app lifecycle, from native development to automated CI/CD and App Store deployment.

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About Me

I am a Senior Mobile Engineer with over a decade of experience in crafting high-performance, robust applications for both iOS and Android. My expertise spans native development and cross-platform solutions using Flutter. I take pride in owning the entire app lifecycle, from architectural design and implementation to automated testing, CI/CD pipelines, and deployment to the App Store and Google Play.

Throughout my career, I have partnered with a diverse range of organizations, including fintechs, banks, consulting firms, and engineering companies. This background has instilled in me a deep commitment to building scalable architectures, writing clean, maintainable code, and establishing efficient release processes that empower teams to deliver quality at scale.

I am passionate about staying at the forefront of technology, currently exploring how AI-driven tools can augment and streamline modern development workflows. This portfolio is a product of that exploration, leveraging trending AI tools to accelerate development, with every line of code and piece of content meticulously reviewed and refined by me.

Experience

Aug 2022 - Present

Mobile App Developer

Innomotics GmbH (formerly Siemens AG)

Spearheaded the development of industrial IoT (IIoT) applications using Flutter, driving a 600% increase in monthly active users (MAU) and user sessions.
Elevated codebase reliability by increasing test coverage from 25% to 85%, resulting in a significant reduction in application crashes.
Overhauled the delivery pipeline, reducing deployment process from 2 days to under 4 hours through automated CI/CD and code optimization.
Directed the integration of third-party SDKs for advanced analytics while collaborating with designers and product owners.
Managed the technical transition and rebranding of the mobile suite during the Innomotics carve-out from Siemens AG.

Apr 2021 - Sep 2021

Flutter Developer

act digital

Developed the high-security client onboarding module for a major Brazilian bank, directly impacting user acquisition.
Served as the primary technical authority for the squad, providing architectural design guidance and conducting high-standard code reviews.
Built and maintained a comprehensive testing framework (Unit, Widget, and Integration tests) ensuring 99.9% uptime for performance-critical banking features.

Aug 2019 - Mar 2021

Mobile Developer

FourBank

Engineered a White-Label Banking-as-a-Service mobile platform using Flutter, allowing multiple financial institutions to deploy custom branded apps.
Owned the delivery pipeline by automating deployments via GitLab CI, reducing manual overhead and deployment errors.
Managed technical roadmaps, including effort estimation and task scheduling, to meet strict financial regulatory deadlines.

Jan 2019 - Mar 2021

Mobile Developer

AIXSports

Utilized crash reporting and monitoring tools to maintain high performance during high-traffic match-day events.
Simultaneously managed the development of a native iOS/Android soccer team application and a dedicated stadium access control tool built with Flutter.

May 2016 - Jan 2019

iOS Developer

Queen Mob

Successfully launched and maintained 10+ mobile applications across the App Store and Google Play.
Directly translated client business requirements into technical specifications through active participation in stakeholder meetings.

Featured Projects

A selection of mobile applications I have developed. This includes current store releases, enterprise solutions, and past projects (some work omitted due to NDAs).