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Hi, I'm Aaron, a passionate and experienced Full Stack Developer with 6 years of experience in building robust web applications. I specialize in both frontend and backend technologies, with a strong emphasis on testing, CI/CD pipelines, and seamless deployment. I enjoy working collaboratively with teams and solving complex problems to deliver high-quality software solutions. Over the years, I've had the chance to work on a variety of projects, from healthcare platforms and AI-powered assistants to e-commerce and scheduling applications. My expertise spans many technologies, and I continuously strive to stay updated with industry trends to create scalable and efficient applications.…Hi, I'm Aaron, a passionate and experienced Full Stack Developer with 6 years of experience in building robust web applications. I specialize in both frontend and backend technologies, with a strong emphasis on testing, CI/CD pipelines, and seamless deployment. I enjoy working collaboratively with teams and solving complex problems to deliver high-quality software solutions. Over the years, I've had the chance to work on a variety of projects, from healthcare platforms and AI-powered assistants to e-commerce and scheduling applications. My expertise spans many technologies, and I continuously strive to stay updated with industry trends to create scalable and efficient applications.

Aaron Esguerra

Full Stack Developer, Developer, Programmer, +3

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Hi, I'm Aaron, a passionate and experienced Full Stack Developer with 6 years of experience in building robust web applications. I specialize in both frontend and backend technologies, with a strong emphasis on testing, CI/CD pipelines, and seamless deployment. I enjoy working collaboratively with teams and solving complex problems to deliver high-quality software solutions. Over the years, I've had the chance to work on a variety of projects, from healthcare platforms and AI-powered assistants to e-commerce and scheduling applications. My expertise spans many technologies, and I continuously strive to stay updated with industry trends to create scalable and efficient applications.…Hi, I'm Aaron, a passionate and experienced Full Stack Developer with 6 years of experience in building robust web applications. I specialize in both frontend and backend technologies, with a strong emphasis on testing, CI/CD pipelines, and seamless deployment. I enjoy working collaboratively with teams and solving complex problems to deliver high-quality software solutions. Over the years, I've had the chance to work on a variety of projects, from healthcare platforms and AI-powered assistants to e-commerce and scheduling applications. My expertise spans many technologies, and I continuously strive to stay updated with industry trends to create scalable and efficient applications.

Available to hire

Hi, I’m Aaron, a passionate and experienced Full Stack Developer with 6 years of experience in building robust web applications. I specialize in both frontend and backend technologies, with a strong emphasis on testing, CI/CD pipelines, and seamless deployment. I enjoy working collaboratively with teams and solving complex problems to deliver high-quality software solutions.

Over the years, I’ve had the chance to work on a variety of projects, from healthcare platforms and AI-powered assistants to e-commerce and scheduling applications. My expertise spans many technologies, and I continuously strive to stay updated with industry trends to create scalable and efficient applications.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Japanese

Intermediate

Work Experience

Senior Full Stack Engineer at Reachlink

June 30, 2025 - July 23, 2025

Developed and maintained a comprehensive healthcare platform optimized for web and mobile using React.js, Next.js, Node.js, Express.js, and React Native. Integrated Zoom Video SDK for video consultations and various third-party services such as Twilio, AWS, Stripe, Slack, and Zoom to enhance functionality and user experience. Monitored and resolved bugs using Sentry.io and Datadog, improving platform reliability. Created an AI-powered provider assistant bot using OpenAI technology. Ensured code quality with Jest and Mocha testsuites. Employed agile methodologies and Docker for standardized deployments across environments.

Senior Full Stack Engineer at PCX

July 31, 2024 - July 23, 2025

Developed and maintained the company website using React.js, Vue.js, Node.js, Nest.js, and FastAPI. Implemented RESTful APIs and GraphQL, worked with Shopify Storefront API and Liquid for dynamic content. Created automated data migration scripts to synchronize PostgreSQL, MongoDB, and Redis. Utilized Kafka for event sourcing and real-time analytics, managed CI/CD pipelines with GitHub Actions and Jenkins, and deployed applications on AWS, GCP, and Kubernetes. Conducted code reviews and mentored junior developers, and managed Kafka clusters and schemas for real-time data streams.

Full Stack Developer at Linkt

November 30, 2023 - July 23, 2025

Designed and developed a company website for custom AI solutions using the MERN stack. Implemented JWT and OAuth 2.0 authentication for security. Used RabbitMQ for asynchronous task processing in a microservices architecture enhancing real-time notifications. Automated testing and deployment processes to reduce time-to-market. Supported cloud infrastructure and deployment automation using Docker and Kubernetes. Enhanced security with SSL/TLS encryption for Kafka communication and created IoT rules for real-time streaming data processing.

Full Stack Developer at Jicoo, Inc

April 30, 2023 - July 23, 2025

Developed an AI scheduling automation platform using React.js/Next.js and Vue.js. Developed RESTful and GraphQL APIs using Node.js, Express.js, Django, and FastAPI. Implemented a GraphQL API for a real-time data dashboard improving response times by 40%. Created responsive frontends with Material-UI, Tailwind CSS, and Chakra UI. Designed a microservices architecture for the platform, including real-time reservation services. Used Kafka for real-time data streaming and event sourcing. Managed PostgreSQL, MongoDB, and Redis databases optimizing for over 100,000 daily transactions. Achieved 90% code coverage with Jest, Mocha, Pytest, and Cypress and deployed on AWS and GCP.

Frontend Developer at Gemcook, Inc

December 31, 2019 - July 23, 2025

Developed dynamic and responsive web applications using React.js/Next.js, Angular, and Vue.js/Nuxt. Created reusable components and hooks, reducing development time by 30%. Integrated RESTful APIs and GraphQL endpoints. Used Storybook to develop and document UI components improving collaboration between design and development teams. Optimized performance through modular architecture, lazy loading, and code splitting, improving load times by 50%. Collaborated with backend teams to ensure smooth data flow and real-time updates.

Senior Full Stack Engineer at Reachlink

June 30, 2025 - July 23, 2025

Developed and maintained a healthcare platform optimized for web and mobile using React.js, Next.js, Node.js, Express.js, and React Native. Integrated Zoom Video SDK for video consultation sessions. Integrated multiple third-party services such as Twilio, AWS, Stripe, Slack, Zoom, and Whereby. Monitored and resolved bugs and performance issues using Sentry.io and Datadog. Developed an AI-powered provider assistant bot with OpenAI technology. Maintained code quality with Jest and Mocha tests. Utilized agile methodologies and worked with Jira. Used Docker for environment standardization and deployment workflows.

Senior Full Stack Engineer at PCX

July 31, 2024 - July 23, 2025

Developed and maintained company website using React.js, Vue.js, Node.js, Nest.js, and FastAPI. Created and integrated RESTful APIs and GraphQL, utilizing Shopify Storefront API and Liquid for dynamic content rendering. Automated data migration and synchronization across PostgreSQL, MongoDB, and Redis. Used HubSpot analytics to increase website traffic. Utilized Kafka for event sourcing and real-time analytics with Confluent platform. Implemented unit and integration tests with Mocha, Jest, and Pytest. Managed CI/CD pipelines with GitHub Actions and Jenkins. Deployed applications on AWS, GCP, and Kubernetes. Collaborated with cross-functional teams, conducted code reviews, and mentored junior developers.

Full Stack Developer at Linkt

November 30, 2023 - July 23, 2025

Designed and developed company website for custom AI solutions using MERN stack ensuring high performance. Implemented robust authentication and authorization mechanisms using JWT and OAuth 2.0. Integrated RabbitMQ for asynchronous task processing in a microservices architecture. Streamlined testing and deployment through automation. Supported cloud infrastructure and deployment automation using Docker and Kubernetes. Developed WordPress based reports supporting promotional packages. Enhanced security with SSL/TLS encryption for Kafka communication. Created and managed IoT rules processing streaming data in real time. Utilized AWS CloudWatch Logs for centralized logging and monitoring.

Full Stack Developer at Jicoo, Inc

April 30, 2023 - July 23, 2025

Developed AI scheduling automation platform using React.js, Next.js, and Vue.js. Created RESTful and GraphQL APIs using Node.js, Express.js, Django, and FastAPI. Built GraphQL API for real-time data dashboard improving response times by 40%. Created responsive frontends with Material-UI, Tailwind CSS, and Chakra UI, improving mobile user engagement. Designed microservices architecture for user management, payment processing, and reservations. Implemented Kafka for real-time data streaming and event sourcing. Designed and maintained PostgreSQL and MongoDB databases handling over 100,000 daily transactions with Redis caching. Achieved 90% code coverage with Jest, Mocha, Pytest, and Cypress. Deployed and maintained applications on AWS and GCP.

Frontend Developer at Gemcook, Inc

December 31, 2019 - July 23, 2025

Developed and maintained dynamic web applications using React.js, Next.js, Angular, and Vue.js/Nuxt. Created reusable components and hooks improving code maintainability and reducing development time by 30%. Integrated RESTful APIs and GraphQL endpoints to manage complex data flows and state management. Utilized Storybook to develop and document UI components in isolation, creating a reusable library. Optimized application performance by implementing modular architecture, lazy loading, and code splitting, improving load times by 50%. Collaborated with backend teams to ensure smooth data flow and real-time updates.