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Lucas – React, Node.js, AWS, experts in Lemon.io

Lucas

From Guatemala (GMT-6)

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Full-stack Web DeveloperSenior
Hire developer
7 years of commercial experience
Accounting
AI
Analytics
Banking
Credit and lending
Customer support
Edtech
Fintech
Healthcare
Hospitality
Insurance
Transportation
AI software
Communication tools
Geospatial software
Mapping software
Mobile apps
Platforms
SaaS
Lemon.io stats
3
projects done
1510
hours worked
1
offers now 🔥

Lucas – React, Node.js, AWS

Meet Lucas - a software engineer with extensive knowledge in creating projects from scratch. He has a strong foundation in JavaScript, React.js, TypeScript, and Node.js and is always eager to learn more. Lucas values the opportunity to voice suggestions and be involved in conversations and aspires to lead a project someday.

Main technologies
React
5 years
Node.js
5 years
AWS
3 years
Next.js
3 years
Typescript
5 years
Additional skills
PostgreSQL
Svelte-kit
GCP
Nest.js
Travis CI
Material UI
Firebase
Flutter
Cypress
JavaScript
React Native
GitHub Actions
MongoDB
Prisma
Vercel
LangChain
OpenAI
Tailwind CSS
Chrome extensions
Web 3.0
Supabase
Svelte.js
Rewards and achievements
Swift communicator
Ready to start
ASAP
Direct hire
Potentially possible

Experience Highlights

Senior Full-Stack Developer
Apr 2021 - Ongoing3 years 2 months
Project Overview

It is a next-generation customer service portal that seamlessly connects businesses with their clients using the power of Twilio. This innovative platform revolutionizes communication by offering an intuitive, all-in-one solution to manage customer interactions efficiently. With this product businesses can effectively engage with their clients, providing personalized experiences and swift issue resolution.

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Responsibilities:
  • Achieved global reach by implementing comprehensive Japanese, English, Spanish, French, Mandarin, and Cantonese translations, catering to a diverse customer base and facilitating seamless communication.
  • Developed a robust, integrated module for both the Back-End and front-End to manage outbound and inbound campaigns expertly, elevating customer engagement and driving business growth
  • Enhanced platform stability and performance by resolving a multitude of pre-existing bugs, ensuring a reliable and smooth user experience for both businesses and clients
  • Strengthen data privacy and compliance by implementing a specific phone number import feature, preventing unauthorized usage of unimported numbers, and safeguarding customer information.
Project Tech stack:
React
Nest.js
PostgreSQL
Material UI
Moment.js
Formik
GitHub
Travis CI
AWS
Twilio API
Senior Full-Stack Developer
Mar 2024 - May 20242 months
Project Overview

This is an innovative company specializing in electric vehicle (EV) charging infrastructure planning. Their advanced platform empowers users to efficiently design and optimize EV charging projects with precision and ease. By leveraging cutting-edge AI and data analytics, they provide comprehensive cost estimates, detailed materials lists, and intelligent site recommendations.

The company's user-friendly interface allows project managers, urban planners, and EV enthusiasts to create, modify, and visualize charging station layouts in real-time. Its sophisticated algorithms consider various factors such as local power grid capacity, traffic patterns, and projected EV adoption rates to suggest optimal charging locations and configurations.

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Responsibilities:
  • Engineered a sophisticated customization system for text box markers, significantly enhancing user interaction and information display within the mapping interface.
  • Developed and integrated a feature allowing users to attach high-resolution photos to map markers, providing richer contextual information for EV charging site planning.
  • Conducted a comprehensive UI/UX overhaul, implementing intuitive design patterns and interactive elements.
  • Successfully merged and optimized two photo-related functionalities, streamlining the user interface and improving system performance.
  • Designed and implemented a flexible, user-defined ordering system for cost categories.
Project Tech stack:
Next.js
React
Material UI
ChakraUI
Supabase
PostgreSQL
Senior Full-Stack Developer
Nov 2023 - Apr 20244 months
Project Overview

This company focuses on helping users control their finances, providing them with peace of mind through detailed reports and valuable insights. Their platform offers intuitive tools for expense tracking, customized budgeting, and financial analysis, enabling users to make informed decisions about their money.

The company strives to simplify financial management by providing clear visualizations of spending and saving patterns. Additionally, their advanced algorithms generate personalized recommendations to improve each user's financial health.

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Responsibilities:
  • Designed and implemented a comprehensive multi-business management module from the ground up, enabling users to efficiently manage multiple enterprises within a single application interface.
  • Integrated Google Places API to create a sophisticated address autocomplete function.
  • Developed a robust user invitation system, facilitating secure sharing of financial data between business partners and individuals, with granular permission controls.
  • Engineered complex administrative interfaces for in-depth visualization of user financial reports.
  • Resolved critical Node.js environment-related issues in the Vercel-deployed application.
  • Executed a full-scale migration to Chakra UI, refactoring existing components and implementing new ones.
  • Constructed a comprehensive edit interface for user profiles and business information, incorporating real-time validation and optimistic updates.
Project Tech stack:
Next.js
React
tRPC
PostgreSQL
Vercel
ORM
Full-Stack Web Developer.
May 2023 - Sep 20233 months
Project Overview

A cutting-edge Chrome extension designed to support students in their educational journey. It offers instant AI-powered explanations for various subjects and allows students to supercharge their learning by integrating their own homework and documents.

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Responsibilities:
  • Successfully completed two comprehensive redesigns, one for the AI Chat interface and another for the extension, ensuring a more intuitive and aesthetically pleasing user interface.
  • Implemented complex document upload logic, leveraging Langchain technology to process custom documents effectively.
  • Optimized the code base of the extension, making it more efficient and robust.
Project Tech stack:
React
Next.js
JavaScript
MongoDB
ChakraUI
React Query
OpenAI
LangChain
Tailwind CSS
Senior Full-Stack Developer
Dec 2021 - May 20224 months
Project Overview

A platform tailored for Guatemala, simplifying the process of securing loans for cars, houses, and more. It empowers users by offering a seamless, user-friendly experience that connects borrowers with trusted lenders, making pursuing dreams more accessible than ever.

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Responsibilities:
  • Established a robust e2e testing framework using Cypress, explicitly targeting the car loan process, to ensure a flawless and reliable user experience across all stages of the application
  • Identified and resolved pre-existing bugs while optimizing overall performance, enhancing the platform's stability, and ensuring a seamless, efficient user experience
  • Integrated a cutting-edge library to adeptly manage the complexity of forms, streamlining the loan application process and facilitating the collection of accurate, consistent data
  • Undertook a comprehensive UI overhaul, implementing visually appealing and intuitive design elements that elevate the user experience and promote effortless navigation through the platform.
Project Tech stack:
React
JavaScript
Cypress
Firebase
Bootstrap
Senior Full-Stack Developer
Oct 2020 - Dec 20202 months
Project Overview

A transformative platform designed to effortlessly connect doctors and nurses with clients across the United States. The innovative solution simplifies shift management and payment processing, enabling healthcare professionals to focus on providing exceptional care.

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Responsibilities:
  • Developed a sophisticated backend and frontend logic system to expertly manage shifts expertly, ensuring seamless coordination and scheduling for healthcare professionals and clients alike
  • Enhanced the mobile application by incorporating vital functionalities, such as payment processing and shift management, providing users with a comprehensive, on-the-go solution that mirrors the capabilities of the web platform
Project Tech stack:
React
PostgreSQL
Material UI
Nest.js
GitHub
GitHub Actions
Jira
React Native
Middle Full-Stack Developer
Dec 2019 - Nov 202010 months
Project Overview

A groundbreaking carpooling application revolutionizing transportation in Guatemala. Designed to foster sustainable commuting habits, it partners with universities and colleges, creating a connected community that shares rides to reduce traffic congestion, save costs, and minimize environmental impact.

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Responsibilities:
  • Developed an advanced module for frontend and Firebase integration, expertly managing partnerships and enticing prize offerings to attract and retain users, fostering a thriving carpooling community
  • Incorporated a cutting-edge algorithm leveraging Firebase and Flutter to search and match rides within the app efficiently, optimizing user experience and promoting seamless, hassle-free commutes
  • Designed a comprehensive backoffice from the ground up to meticulously handle driver documentation and information, ensuring the highest standards of safety and compliance for all users
  • Implemented a sophisticated financial management system within the app, incorporating ticket and token transactions to create a secure, user-friendly platform that streamlines payments and incentives
Project Tech stack:
React
Flutter
Firebase
Next.js
GCP
BitBucket
Bitbucket Pipelines

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