<aside> 👋 Hi, I’m Osmar Petry, a Senior Software Engineer with over nine years of experience creating impactful web and mobile solutions. I specialize in React, TypeScript, and Node.js, delivering scalable systems and mentoring teams to success. Let’s innovate together!

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🤝 Introduction

Experienced Senior Software Engineer with 9+ years of delivering impactful solutions for international companies. Expert in building and scaling web and mobile applications with React, TypeScript, Node.js, and Golang. Adept at solving complex challenges, optimizing performance, and implementing maintainable architectures. Proficient in working with Agile teams, mentoring peers, and delivering value-driven results across diverse industries.

Core Technologies: React, TypeScript, GraphQL, Redux, Node.js, Golang, AWS, GCP, TDD, DDD.

💼 Key Projects and Experience

Attend – Senior Software Engineer (May 2023–Present)

Primary Impact: Spearheaded the development of an administration dashboard for managing inventory and assignments, reducing operational workload and support ticket response times while eliminating the need for additional staff monitoring.
Contributed to the Flex client-sharing solution by implementing advanced payment workflows and seamless gift card integrations.
Worked on Pass and Flow, driving consistent data synchronization and user interface improvements across products.
Technologies: React, NextJS, NodeJS, TypeScript, Redux, AWS.

Freelance – Senior Software Engineer (Feb 2023–Aug 2023)

Health Application: Designed and implemented a React Native app to centralize patient health data, integrating third-party labs and enabling seamless patient-doctor communication.
Tourism Application: Created city- and event-specific React Native apps with modular designs, optimizing branding and improving user engagement.
- Delivered a scalable solution that allowed for cost-efficient maintenance by junior developers with occasional consulting.
- Achieved high code reusability, reducing development timelines while maintaining quality.
Technologies: React Native, iOS, Android, Node.js.

X-Team – Senior Software Engineer (Mar 2021–Feb 2023)

KMF/XHQ
- Enhanced back-office invoicing systems with scalable APIs, streamlining operations for internal teams.
- Introduced an optimized backend architecture with Firebase and Node.js, improving data handling and system performance.
Lemonlight
- Automated administrative processes by developing an auto-table generator, resolving critical bugs, and ensuring robust CI/CD workflows.
- Mentored team members on TypeScript best practices, driving a culture of code quality and collaboration.