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Bryan Semann

@bryansemann

Software Developer at Senior Sistemas, integrating facial recognition into Flutter time-tracking apps handling millions of transactions.

Brazil

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At Senior Sistemas, I develop and maintain Flutter and Dart applications for iOS and Android on an enterprise time-tracking platform. I integrated biometric facial recognition for employee verification and device-camera interaction.

At Benner Sistemas, I built a greenfield Flutter warehouse inventory app with QR code scanning and 3D spatial mapping for package localization. I also worked on logistics modules for freight, truck routing, and warehouse workflows.

At Datainfo, I maintained and tuned ERP software using Delphi and SQL databases, and created BI reports using Data Warehouse architecture across SQL Server and Oracle.

Across these roles, I’ve applied OOP, SOLID, and clean architecture in mobile and backend development. At Senior Sistemas, I also introduced AI-DLC workflows using Claude Code, Claude AI, and GitHub Copilot.

Experience

Work history, roles, and key accomplishments

Current

Software Developer

Current

Senior Sistemas

Aug 2024 - Present (2 years 2 months)

Developed and maintained commercial cross-platform mobile applications in Flutter and Dart for iOS and Android on Senior's enterprise time-tracking platform, supporting peak workloads exceeding millions of simultaneous clock-in transactions. Integrated biometric facial recognition capabilities into the Flutter mobile app, delivering secure, automated employee verification and seamless camera/devic

Flutter Dart iOS Android Face Biometrics Object Oriented Programming SOLID Angular Java 17 Spring Boot REST APIs PostgreSQL Claude Code Claude AI GitHub Co Pilot Prompt Engineering

Software Developer

Benner Sistemas

Dec 2023 - Jul 2024 (7 months)

Initiated and built a greenfield commercial warehouse inventory mobile application from the ground up using Flutter and C#, incorporating QR code scanning to enable 3D spatial mapping and precise package localization. Engineered enterprise logistics software modules managing freight cargo operations, truck routing, and warehouse inventory workflows.

Flutter C#QR Code Scanning 3D Mapping PostgreSQL SQL Server Logistics Warehouse Management

Software Developer

Datainfo

Feb 2021 - Nov 2023 (2 years 9 months)

Delivered ongoing maintenance, performance tuning, and object-oriented feature extensions for large-scale Enterprise Resource Planning (ERP) software using Delphi and SQL databases. Designed and generated analytical Business Intelligence (BI) reports leveraging Data Warehouse architecture across SQL Server and Oracle databases.

Delphi SQL ERP Business Intelligence Data Warehouse SQL Server Oracle Database

Education

Degrees, certifications, and relevant coursework

Estácio

Bachelor of Technology, Systems Analysis & Development

2025 -

Bachelor of Technology in Systems Analysis & Development in progress, expected completion in 2028. Focus areas include Software Engineering, Object-Oriented Design, Mobile & Full-Stack Development, and Relational Databases.