Available to hire
Hi, I’m Jared Esteban Cruz Perez, a Senior Full-Stack Engineer with a passion for building scalable, high-performance web applications using Python, Node.js, and React. I design intuitive, interactive user interfaces and robust backend systems, and I enjoy integrating AI-powered features to enhance user experiences.
Over the years I have worked with Django, Flask, FastAPI, Express.js, Nest.js, and cloud and DevOps tools to deliver end-to-end solutions. I have built AI chatbots with Rasa, Dialogflow, and LangChain, implemented semantic search with vector databases, and automated CI/CD pipelines to accelerate delivery while maintaining reliability.
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Language
Spanish; Castilian
Fluent
English
Advanced
Work Experience
Senior Software Engineer at City Park Authority
February 1, 2025 - September 23, 2025Developed a responsive web application using Python (Django, Flask, FastAPI) and Node.js (Express.js) to provide services for Oracle Cloud Infrastructure (OCI). Built AI-powered chatbots using Rasa, Dialogflow, and LangChain, integrating LLMs to enhance automated customer support. Integrated React and Next.js with FastAPI and Express.js to enable seamless communication between frontend and backend, enhancing real-time data processing and user experience. Designed RESTful APIs and GraphQL services with FastAPI, Django REST Framework (DRF) and Node.js (Express.js), reducing API response times by 35%. Automated CI/CD pipelines with Docker, Kubernetes, and Jenkins, improving deployment speed and reliability.
Full Stack Developer at Computools
December 1, 2022 - September 23, 2025Developed AI-driven recommendation systems using LangChain and LlamaIndex, improving search relevance by 45%. Built backend services with Python (Django, Flask) and Node.js (Nest.js), handling 500K+ daily API requests with GraphQL and FastAPI. Integrated vector databases (FAISS, Pinecone) to power semantic search for e-commerce product recommendations. Implemented serverless computing with AWS Lambda, S3, and DynamoDB, reducing infrastructure costs by 35%.
Frontend Developer at Stellarbase
April 1, 2020 - September 23, 2025Created user interfaces with React and Vue.js, improving responsiveness by 25%. Partnered with backend engineers on PHP-based APIs for seamless data integration. Built UI components with Material UI, ensuring design consistency.
Senior Software Engineer at City Park Authority
February 1, 2025 - September 23, 2025Developed a responsive web application using Python (Django, Flask, FastAPI) and Node.js (Express.js) to provide services for Oracle Cloud Infrastructure (OCI). Built AI-powered chatbots using Rasa, Dialogflow, and LangChain to enhance automated customer support. Integrated React and Next.js with FastAPI and Express.js to enable seamless communication between frontend and backend, improving real-time data processing and user experience. Designed RESTful APIs and GraphQL services with FastAPI, Django REST Framework (DRF) and Express.js, reducing API response times by 35%. Automated CI/CD pipelines with Docker, Kubernetes, and Jenkins, boosting deployment speed and reliability.
Full Stack Developer at Computools
December 1, 2022 - September 23, 2025Developed AI-driven recommendation systems using LangChain and LlamaIndex, improving search relevance by 45%. Built backend services with Python (Django, Flask) and Node.js (Nest.js), handling 500K+ daily API requests with GraphQL and FastAPI. Integrated vector databases (FAISS, Pinecone) to power semantic search for e-commerce product recommendations. Implemented serverless computing with AWS Lambda, S3, and DynamoDB, reducing infrastructure costs by 35%.
Frontend Developer at Stellarbase
April 1, 2020 - September 23, 2025Created user interfaces with React and Vue.js, improving responsiveness by 25%. Partnered with backend engineers on PHP-based APIs for seamless data integration. Built UI components with Material UI, ensuring design consistency.
Education
Bachelor's degree in Computer Science at Hong Kong University of Science and Technology
January 1, 2013 - January 1, 2017Bachelor's degree in Computer Science at Hong Kong University of Science and Technology
January 1, 2013 - January 1, 2017Qualifications
React Engineer Certificate
March 1, 2019 - September 23, 2025Node.js Engineer Certificate
September 1, 2022 - September 23, 2025Python Engineer Certificate
January 1, 2023 - September 23, 2025AWS Certified Solutions Architect – Associate
August 1, 2023 - September 23, 2025React Engineer Certificate
March 1, 2019 - September 23, 2025Node.js Engineer Certificate
September 1, 2022 - September 23, 2025Python Engineer Certificate
January 1, 2023 - September 23, 2025AWS Certified Solutions Architect – Associate
August 1, 2023 - September 23, 2025Industry Experience
Software & Internet, Professional Services, Government, Media & Entertainment, Education
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
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