Nicolas – React, JavaScript, PHP, experts in Lemon.io

Nicolas

From Argentina (UTC-3)flag

Full-stack Web Developer|Senior
Lemon.io stats
3
projects done
2719
hours worked

Nicolas – React, JavaScript, PHP

Nicolas is a passionate Senior Full-stack Web Developer with over 10 years of experience working with local and US-based software companies, agencies, and entrepreneurs. Nicolas demonstrates problem-solving skills, a good understanding of the React ecosystem, advanced knowledge of relational databases, and a solid understanding of key-value storage systems. He combines a solid academic background as a Systems Engineer with extensive experience in leading technologies. Nicolas is always willing to learn new things and seek new challenges.

14 years of commercial experience in
AI
Art and creativity
Business intelligence
Data analytics
E-commerce
Environmental services
Fintech
Information services
Marketing
Social media
AI software
CMS
SaaS
Video streaming software
Main technologies
React
4 years
JavaScript
10 years
PHP
7 years
Laravel
4 years
Additional skills
MySQL
Vue.js
WordPress
Next.js
Vanilla JS
Symfony
Typescript
Webpack
Jest
Unit testing
.NET
MongoDB
Docker
jQuery
AWS
CI/CD
Figma
Python
LangChain
PostgreSQL
Tailwind CSS
OpenAI API
Confluence
CSS
Filament
Alpine
Direct hire
Possible
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Experience Highlights

Tech Lead
Sep 2023 - Feb 20245 months
Project Overview

An agency providing SaaS and AI services.

Responsibilities:
  • Created a SaaS application Using Laravel and FilamentPHP to display the DRs and their interrelationships, manage user roles, and sync queued jobs against the RAG app.
  • Built an ESG KPI dashboard for efficient tracking and visualization of key performance indicators to improve stakeholders decision-making.
  • Developed a RAG application using Python and LangChain to retrieve ESG Data Reports (DRs) and conduct comparative analyses.
Project Tech stack:
JavaScript
Python
LangChain
OpenAI API
PostgreSQL
Docker
Tailwind CSS
Laravel
Filament
PHP
Alpine
Senior Software Engineer
Nov 2022 - May 20236 months
Project Overview

Company leverages AI to build custom datasets to streamline how companies and investors do research, set strategy, and build products

Responsibilities:
  • Developed and enhanced Next.js/Laravel applications by adding new functionalities.
  • Constructed a parser for organizing and incorporating unstructured data.
  • Integrated multiple data sources, including Polygon and EODH, for enriched data collection.
  • Implemented a subscription model with a custom Next.js dashboard; integrated Stripe for payment processing.
  • Designed and delivered bundle CSV files with business data post-Stripe purchases.
  • Successfully integrated the Next.js app with external services like Slack and Mailchimp.
  • Created pixel-perfect marketing pages in the Next.js app to match Figma designs.
  • Developed Python scripts to download and parse PDFs, extracting KPI data using OpenAI API.
Project Tech stack:
Next.js
Laravel
Typescript
React
Algolia
AWS
PostgreSQL
Python
LangChain
Docker
Tailwind CSS
Redux
Playwright
Redis
Jest
JavaScript
Lead Developer
May 2021 - Feb 20231 year 9 months
Project Overview

The main project involved creating custom shopping carts for several marketing sites. Each site has a different shopping cart experience.​

Responsibilities:
  • Designed and implemented a REST API;
  • Developed a custom cart functionality for marketing sites to optimize the user experience and increase conversion rates;
  • Created a CloudFlare worker to customize geolocation data, improving the accuracy of location-based services;
  • Created an SDK client to consume data from internal APIs, enabling secure and efficient data access across different services;
  • Developed React components for custom blocks, enhancing the usability and visual appeal of the web application;
  • Migrated an old WebPack 3 build process into the latest version, improving build speed and reducing errors;
  • Triggered custom GA4 events to track and analyze user behavior and improve marketing strategies;
  • Conducted technical interviews for possible candidates to evaluate their technical skills and fit for the role;
  • Conducted PR code reviews and pair programming sessions with junior developers to improve code quality and knowledge transfer;
  • Extended internal UX framework library (React/Typescript) to provide additional functionality and improve usability across different projects;
  • Implemented Storybook accessibility configuration and automated tests to ensure the application is accessible and usable for all users;
  • Extended functionality for internal Microservices (.NET) to provide additional features;
  • Migrated WordPress sites to Next.js to improve performance, scalability, and maintainability.
Project Tech stack:
Typescript
Unit testing
Webpack
PHP
JavaScript
Jest
React
.NET
Full-Stack Web Developer
Sep 2020 - Feb 20215 months
Project Overview

A site to show institutional videos. This project involved building a Headless CMS using WordPress as the backend and Next.js as the frontend.​

Responsibilities:
  • Created front-end and back-end architecture;
  • Integrated with different video providers;
  • Designed and implemented database schema;
  • Accomplished pixel-perfect look and feel following a Figma design;
  • Performed code reviews.
Project Tech stack:
WordPress
MySQL
React
Next.js
Full-Stack Web Developer
Mar 2018 - Jul 20184 months
Project Overview

HelpHub is an entire section under the product's main site. The project involved: a) creating the backend to contain all the necessary fields, and b) creating the templates on the front-end following a design.

Responsibilities:
  • Created front-end and back-end architecture;
  • Performed code reviews;
  • Increased test coverage;
  • Built pixel-perfect reusable components;
  • Did code refactoring.
Project Tech stack:
Craft
PHP
Symfony
MySQL
Vue.js
Senior Full-stack Developer
Jun 2023 - Unfinished3 years
Project Overview

A startup that created a SaaS product to serve Canadian financial services.

Responsibilities:
  • Developed a multilingual SaaS application focused on financial services, specifically for mutual funds, enhancing regulatory reporting and management.
  • Engineered key features for managing Funds, Series, Holdings, Projects, and Documents, ensuring comprehensive functionality.
  • Developed a custom page builder using React and Redux Toolkit, facilitating live editing style and rearrangement of content.
  • Integrated the application with third-party services such as Adobe API to export a document as Docx format, and Wrike API to transform user feedback into actionable tasks.
  • Implemented a node microservice using AWS to render and export multiple documents into a single PDF.
  • Designed and managed different project/document stages with checklists, improving project tracking and accountability.
  • Established custom roles and capabilities within the application, allowing granular resource-based access control.
  • Implemented Two-Factor Authentication (2FA) for enhanced security and user authentication.
Project Tech stack:
React
Typescript
Jest
Playwright
Laravel
Redux
MySQL
AWS
Docker
Tailwind CSS
Redis
JavaScript

Education

2014
Software Engineering
Bachelor degree

Languages

English
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