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I'm Reynan Guinto Macasaquit, a Senior Full Stack Engineer with over 10 years of experience delivering production-grade applications across JavaScript, Python, Go, Java, TypeScript, and C++. I excel at writing clean, scalable code and improving team processes through solid Git workflows, thorough debugging, and robust documentation. I thrive in collaborative environments and enjoy elevating engineering standards while mentoring others. I also evaluate AI-generated code, author technical documentation, and contribute training data to help AI models reason about software engineering challenges. I aim to balance rapid delivery with long-term maintainability, continuously improve engineering practices, and explore innovative AI-enabled approaches to solving real-world problems.…I'm Reynan Guinto Macasaquit, a Senior Full Stack Engineer with over 10 years of experience delivering production-grade applications across JavaScript, Python, Go, Java, TypeScript, and C++. I excel at writing clean, scalable code and improving team processes through solid Git workflows, thorough debugging, and robust documentation. I thrive in collaborative environments and enjoy elevating engineering standards while mentoring others. I also evaluate AI-generated code, author technical documentation, and contribute training data to help AI models reason about software engineering challenges. I aim to balance rapid delivery with long-term maintainability, continuously improve engineering practices, and explore innovative AI-enabled approaches to solving real-world problems.

Reynan Guinto Macasaquit

Full Stack Developer, Web Developer, AI Engineer, +6

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I'm Reynan Guinto Macasaquit, a Senior Full Stack Engineer with over 10 years of experience delivering production-grade applications across JavaScript, Python, Go, Java, TypeScript, and C++. I excel at writing clean, scalable code and improving team processes through solid Git workflows, thorough debugging, and robust documentation. I thrive in collaborative environments and enjoy elevating engineering standards while mentoring others. I also evaluate AI-generated code, author technical documentation, and contribute training data to help AI models reason about software engineering challenges. I aim to balance rapid delivery with long-term maintainability, continuously improve engineering practices, and explore innovative AI-enabled approaches to solving real-world problems.…I'm Reynan Guinto Macasaquit, a Senior Full Stack Engineer with over 10 years of experience delivering production-grade applications across JavaScript, Python, Go, Java, TypeScript, and C++. I excel at writing clean, scalable code and improving team processes through solid Git workflows, thorough debugging, and robust documentation. I thrive in collaborative environments and enjoy elevating engineering standards while mentoring others. I also evaluate AI-generated code, author technical documentation, and contribute training data to help AI models reason about software engineering challenges. I aim to balance rapid delivery with long-term maintainability, continuously improve engineering practices, and explore innovative AI-enabled approaches to solving real-world problems.

Available to hire

I’m Reynan Guinto Macasaquit, a Senior Full Stack Engineer with over 10 years of experience delivering production-grade applications across JavaScript, Python, Go, Java, TypeScript, and C++. I excel at writing clean, scalable code and improving team processes through solid Git workflows, thorough debugging, and robust documentation. I thrive in collaborative environments and enjoy elevating engineering standards while mentoring others.

I also evaluate AI-generated code, author technical documentation, and contribute training data to help AI models reason about software engineering challenges. I aim to balance rapid delivery with long-term maintainability, continuously improve engineering practices, and explore innovative AI-enabled approaches to solving real-world problems.

Skills

Experience Level

Expert

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Expert

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Language

English

Advanced

Aragonese

Advanced

Javanese

Advanced

Work Experience

Full Stack & AI/ML Engineer at Helenhood Inc.

September 1, 2014 - Present

At Helenhood Inc., I design and deploy machine learning models and develop full-stack solutions, leveraging Python, TensorFlow, FastAPI, and cloud platforms like AWS and Azure. I build and maintain data pipelines, integrate AI features into applications, and perform advanced data analysis and feature engineering. I ensure model reliability through monitoring and validation while collaborating with cross-functional teams to deliver AI-driven solutions that align with business goals.

Full Stack Developer at Pointwest Technologies

June 1, 2022 - July 1, 2023

At Pointwest Technologies, I developed scalable web applications and backend services using Node.js, Python (Django, FastAPI), PHP, and Golang, while creating responsive frontends with React and Angular. I designed and optimized databases, integrated external APIs, refactored legacy systems, and implemented CI/CD pipelines, ensuring efficient and maintainable software solutions that met stakeholder requirements.

Front Developer at Arcanys

July 1, 2020 - November 1, 2021

At Arcanys, I built responsive, high-performance user interfaces with React, Angular, JavaScript, HTML, and CSS. I developed reusable UI components, integrated frontend applications with backend APIs, and collaborated with designers and developers to deliver consistent, optimized user experiences within Agile development processes.

Frontend Developer at Arcanys

July 1, 2020 - November 1, 2021

Developed and reviewed frontend applications in JavaScript, TypeScript, React, Angular, and Flutter, ensuring production-grade quality. Evaluated AI-generated frontend code outputs, ranking solutions by maintainability, scalability, and adherence to engineering standards. Conducted secure code reviews and debugging sessions, documenting strategies for resolving UI and API integration issues. Applied Git workflows for collaborative coding, ensuring smooth branching and version control practices. Authored technical documentation on frontend best practices and debugging workflows. Created training content for AI systems focusing on frontend debugging and maintainability. Diagnosed and resolved bugs across distributed systems, applying systematic analysis to prevent recurrence. Elevated engineering standards by enforcing clarity, simplicity, and maintainability in frontend design patterns.