Daryl Marco
Verified Expert in Engineering
MySQL Developer
Walnut Creek, CA, United States
Toptal member since October 6, 2020
Daryl is a software developer with a passion for learning new technologies. He deployed a photo carousel microservice for an online store's product page whose database contained over ten million products with 22 million product images. He strives to create highly efficient, readable, and reusable code. Daryl has delivered projects using React, Redux, Node.js, Express, and various relational and non-relational databases.
Portfolio
Experience
- MySQL - 10 years
- HTML5 - 8 years
- CSS - 8 years
- JavaScript - 3 years
- React - 3 years
- Node.js - 3 years
- Redux - 2 years
- Amazon Web Services (AWS) - 1 year
Work Experience
Full-stack Software Engineer
Welltrust Medical Group
- Refactored a patient-facing web application from JavaScript to TypeScript.
- Instituted end-to-end testing of customer and healthcare provider-facing sites using Cypress.io.
- Created new APIs to integrate Amazon S3 storage for storing documents to share with healthcare providers.
- Worked on the database and back-end design changes for creating a patient portal application.
Web Developer for Custom Web Applications
Kin Health Inc (dba. Songbird Therapy).
- Developed analytics tools using Amplitude to allow linking of marketing efforts to the flow of users at an individual level.
- Created customized signup forms for new users and employee prospects to replace third-party forms.
- Linked several services using Zapier and AWS Lambda functions.
- Improved page load speeds by approximately 50% for the homepage.
Senior Front-end Developer
Stackboss
- Collaborated with the founder of a DevOps startup to plan the user experience for the MVP of their product.
- Developed a React web application for managing server resources with a login system, a central dashboard, a tree structure for browsing resources, search capabilities, and chart views for resources.
- Created an animated chart to show potential customers the savings possibilities through using the service.
President
Daryl Marco Consulting
- Built reporting tools for a multiphase CHI health survey to inform participants of results.
- Created a website for the publisher of English as a second language and other language teaching tools.
- Created website templates for health care providers.
Marketing Manager
Active Interest Media
- Refined an email billing system for publications including Yoga Journal and Backpacker & Climbing, increasing efficiency by 28%.
- Created new A/B testing guidelines for holiday gift subscription marketing campaigns.
- Forecast promotional inventory usage and negotiated contracts for creating new promotional publications.
Circulation Director
Homestyles Media
- Increased the profitability of direct mail campaign results by over 160% by A/B testing price and package.
- Accelerated the growth rate of online orders by over 50% by leading the redesign of our online ordering system.
- Managed subscriber billing, renewal, and marketing with an SQL database.
Project History
reaMIXed Mixing Contest
SofaWorks Review/Product Info Sections
https://github.com/FEC-HRR41-PICOLLO/darjama-ikea-reviewsCraftworkery: Microservice Deployment
https://github.com/SDC-PepperJack/Pepperjack-carousel-darjamaThe PostgreSQL photo database contained over ten million products with 22 million product images. This was deployed to AWS Elastic Containers with round-robin load balancing to improve the response times under heavier loads.
Education
Bachelor of Science Degree in Economics (Concentration in Marketing)
The Wharton School, University of Pennsylvania - Philadelphia, Pennsylvania, USA
Certifications
AWS Certified Cloud Practitioner
Amazon Web Services (AWS)
Software Development
Hack Reactor
Data Science Certification
University of California at Berkeley Extension Program
Skills
Libraries/APIs
React, Node.js, API Development, REST APIs, Chart.js, Google Maps API
Tools
Sequelize, Webpack, GitHub, Zapier, Greenhouse
Languages
JavaScript, HTML5, CSS, SQL, HTML, Python, SAS, TypeScript, Pug
Frameworks
Express.js, Redux, Material UI, Serverless Framework, Cypress, Tailwind CSS
Storage
MongoDB, MySQL, PostgreSQL, Google Cloud, MySQLdb
Industry Expertise
Marketing, Web Design
Paradigms
Test-driven Development (TDD), Microservices Architecture
Platforms
Google Ads, Docker, Firebase, Amazon Web Services (AWS), Azure, Webflow, AWS Lambda
Other
A/B Testing, Full-stack, APIs, Marketing Research & Analysis, Styled-components, Gatsby, Data Science, Bootstrap 4, VictoryChart, Amplitude, Reporting
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