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Preston Zen

@prestonzen1

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Senior Full Stack Engineer | AI Engineer

United States

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What I'm looking for

I am looking for a challenging role that fosters innovation, collaboration, and growth opportunities in AI and full-stack development.

I am a Senior Full Stack Engineer with over 10 years of experience in full-stack development, AWS, and DevOps infrastructure design. My proficiency in Agile methodologies allows me to thrive in fast-paced, iterative environments while leading both frontend and backend development. I have a strong track record of fostering collaboration across cross-functional teams, ensuring that projects are delivered on time and meet high-quality standards.

Throughout my career, I have developed backend systems and microservices using a variety of programming languages and frameworks, including Python, Node.js, and PHP. I have successfully integrated third-party APIs and AWS services into applications, enhancing functionality and user engagement. My experience also includes mentoring junior developers and promoting best practices for cleaner, scalable code, which has contributed to improved team collaboration and project outcomes.

In my previous roles, I have led the development of full-stack web applications, optimized application performance, and implemented CI/CD pipelines. I am passionate about leveraging my skills in AI and machine learning to create innovative solutions that enhance user experiences and drive business success.

Experience

Work history, roles, and key accomplishments

Current

Senior Full Stack Engineer

Current

Kaizen Apps

Aug 2022 - Present (2 years 9 months)

Developed backend systems and microservices using Python, Node.js, and PHP. Designed user-friendly interfaces for web applications using JavaScript frameworks, integrated third-party APIs and AWS services, and implemented CI/CD pipelines while mentoring junior developers.

Python Node PHP AWS CI CD Agile Microservices API Integration JavaScript

Senior Full Stack Engineer

EXzi

Mar 2023 - Jan 2025 (1 year 10 months)

Developed and maintained backend systems and RESTful APIs using Node.js and Python. Led the implementation of Redux for state management in large-scale applications and enhanced application performance using Next.js.

Node Python Redux AWS PostgreSQL Laravel Microservices API Development

AWS Architect

EXzi

Aug 2022 - Feb 2023 (6 months)

Optimized data storage with Amazon DynamoDB and architected scalable AWS infrastructure using Fargate and ECS, improving access times and reducing costs while developing robust backend services.

AWS DynamoDB RESTful APIs Fargate ECS Infrastructure Design Cost Optimization Cloud Architecture

AI Software Engineer

Google

Feb 2020 - May 2022 (2 years 3 months)

Deployed AI chatbot solutions for Fortune 100 companies, enhancing customer service and streamlining operations. Developed tailored chatbots and facilitated third-party integrations via Google Cloud APIs.

AI Chatbot Google Cloud Rasa NLP Integration Automation Machine Learning Customer Service

Full Stack Developer | System Design Architect

Emagined Security

Mar 2019 - Feb 2020 (11 months)

Built front-end applications using React.js and connected them to backend APIs. Led the migration of legacy codebases and focused on optimizing application performance.

React Flask RESTful APIs Performance Optimization System Design Scalability

Full Stack Developer

Burwood Group

Aug 2016 - Mar 2019 (2 years 7 months)

Contributed to the development of web applications and microservices using the React ecosystem. Redesigned old projects to improve load times and conversion rates.

React JavaScript HTML CSS Microservices Web Development User Experience Figma Unit Testing

Education

Degrees, certifications, and relevant coursework

Columbia University

Master’s degree, Artificial Intelligence

Completed a Master's degree focusing on AI Business Applications, integrating advanced AI technologies with business strategies to drive innovation and efficiency.