Gianfranco.JS
Mentor
(47 reviews)
US$25.00
For every 15 mins
73
Sessions/Jobs
ABOUT ME
Full-time Coding Mentor and Senior Software Developer 🌞
Full-time Coding Mentor and Senior Software Developer 🌞
Escuela.dev
Learn how to code in Malaga, Madrid or online.
Perfect for aspiring developers or career changers.
Book a free trial lesson https://escuela.dev/en/free-class/
Generative AI skills:
- Text generation (OpenAI, Anthropic, Groq, Amazon Bedrock, Google Gemini models) and offline models such as LLaMA
- LangChain, Autogen, CrewAI
- DALLE and Stable Diffusion for image generation 🤖
- MongoDB Vector Database for RAG (Retrieval-Augmented Generation) models.
Software Development skills:
- JavaScript and TypeScript (React, React Native, Next.js, Astro) 📱
- NodeJS, GraphQL, REST APIs (Express, Fastify, Mongoose) 🚀
- Web development (SCSS, CSS, HTML) 🌐
- Testing (Jest, Vitest, Playwright)
- Python 3 (Flask, FastAPI) 🐍
- MongoDB, PostgreSQL and Redis
DevOps and SysAdmin skills:
- Linux (Ubuntu, Debian and Bash) 🐧
- Virtualization (Docker) 📦
- Amazon AWS, Google Cloud, DigitalOcean, MongoDB Atlas, Vercel ☁️
- Cloud Functions (AWS Lambda, Vercel Edge) 🐑
- Monitoring and Backup (New Relic, Sentry, Coralogix)
- Continuous Deployment (CD) and Continuous Integration (CI) (GitHub Actions, Jenkins) 🚀
Open source enthusiast: ❤️
https://github.com/gianpaj
⬅️ Click on the Let's Chat button to discuss your goals.
Italian, Spanish, English
Madrid (+02:00)
Joined December 2013
EXPERTISE
11 years experience | 12 endorsements
- Build PWAs with React, Preact, Vite and Astro
- Develop Node.js applications with Fastify, Mongoose, and Jest for cloud services (AWS L...
- Build PWAs with React, Preact, Vite and Astro
- Develop Node.js applications with Fastify, Mongoose, and Jest for cloud services (AWS Lambda) like push notifications, email, and data transformation
- Develop React Native apps and SDK (iOS and Android) with TypeScript and Redux
- Write Integration and Unit tests with Detox, Jest, and Enzyme
- Cloud providers (Netlify, Firebase, Vercel)
7 years experience | 3 endorsements
Worked at MongoDB Inc. for 3 years as a Technical Support Engineer. Made few commit to the Kernel and helped hundreds of small and large ...
Worked at MongoDB Inc. for 3 years as a Technical Support Engineer. Made few commit to the Kernel and helped hundreds of small and large companies dealing with hundreds of databases servers at the time using a variety of MongoDB features.
Servers were deployed in Public Clouds or Datacenters integrating with a variety of application at the upper level and operative systems, disks and networks at the lower level.
6 years experience | 3 endorsements
Used Flask, Pymongo and MongoEngine to develop a single-page app called Crate.ly
Open-sourced on http://github.com/gianpaj/crately
The b...
Used Flask, Pymongo and MongoEngine to develop a single-page app called Crate.ly
Open-sourced on http://github.com/gianpaj/crately
The back-end is basically a REST interface with Facebook authentication together with Cherrypy WSGI Framework.
Also used Fabric for a simple git post-receive hook for continuous deployment.
3 years experience | 1 endorsement
Deployed web production servers mainly on top of Amazon Linux, CentOS and Ubuntu.
Web servers include Nginx, in front of Python or Node.j...
Deployed web production servers mainly on top of Amazon Linux, CentOS and Ubuntu.
Web servers include Nginx, in front of Python or Node.js web applications.
Deployed servers Amazon Web Services, Google Cloud, Vercel as well as DigitalOcean.
Used AWS S3 and Netlify for static websites
8 years experience | 2 endorsements
5 years experience
8 years experience | 3 endorsements
REVIEWS FROM CLIENTS
(47 reviews)
Clark Harris
January 2025
Gianfranco was able to assist me in quickly putting together search functionality on my listings page.
Dennis Luks
January 2025
The best mentor I've worked with so far. Gianfranco is a good teacher, a real professional who knows his stuff and a fun person to work with. See you soon again!
Micheal J. Callaghan
November 2024
This guy knows his stuff. He's patient, thorough, and clearly an expert in JS, TS, Next.js, Node, and APIs between databases or other software/apps. Thanks, Gian!
John N
October 2019
Gian is always helpful and sincere! I love every bit of advice. Also being able to point out unforeseen items that I might run into. Looking forward to working with Gian again!!
lpp
July 2019
Gianfranco is great, he helped discuss the problems and worked with me to find potential solutions. Recommended.
John N
July 2019
Gian is very sincere, and is always helpful. He understood the challenges I'm trying to solve really quick and is able to explain in a way that I'm able to understand and practice resolving challenges on individual. I always appreciate his help and am looking forward to working with him again :))
John N
June 2019
Great session with Gian again as always. Gave me very valuable insights for future development. Always appreciate the help!! :))
John N
May 2019
Gian is great at leading me towards outstanding solutions. Always a pleasure working with him!
John N
May 2019
Always a pleasure working with Gian. He quickly understands what I'm trying to resolve and help give very valuable input!
João Gabriel Santos de Aquino
May 2019
Ha resuelto mi problema con OAuth LinkedIn en 30min! Gracias
SOCIAL PRESENCE
walnut.tv
🔥 Discover trending videos from Reddit and curated YouTube channels – Soon using Next.js. See `dev` branch
JavaScript
12
6
boot2docker-mongodb
Bash script to start a MongoDB sharded cluster using docker on OS X (via boot2docker)
Shell
6
3
10714 Reputation
7
54
68
EMPLOYMENTS
Senior Software Engineer
CarTrawler
2020-01-01-2024-11-01
- Build Web apps with React, Preact, and Astro
- Develop Node.js applications with Fastify, Mongoose, and Jest for cloud services (AWS La...
- Build Web apps with React, Preact, and Astro
- Develop Node.js applications with Fastify, Mongoose, and Jest for cloud services (AWS Lambda) like push notifications, email, and data transformation
- Develop React Native apps and SDK (iOS and Android) with TypeScript and Redux
- Utilize CMS (Contentful) and Figma for dynamic UI styling based on partner design systems
- Write Integration and Unit tests with Detox, Jest, and Enzyme
- Write iOS (Swift, Objective-c) and Android (Kotlin, Java) code
Node.js
Testing
GitHub
View more
Node.js
Testing
GitHub
Jenkins
TypeScript
React
React Native
Redux
Progressive Web Apps
AWS
View more
Co-Founder and CTO
Onova.co
2016-08-01-2019-11-01
Onova is a marketplace for sustainable clothing. Quickly list an item for sale and Onova surfaces your item to interested buyers.
Starti...
Onova is a marketplace for sustainable clothing. Quickly list an item for sale and Onova surfaces your item to interested buyers.
Starting in Ukraine 🇺🇦
Node.js
MongoDB
Firebase
View more
Node.js
MongoDB
Firebase
React
Jest
React Native
AWS
View more
Full Stack Developer
Irish Distillers Pernod Ricard
2017-01-01-2017-10-01
Symfony PHP with JS, Twig, HTMLS, CSS and MariaDB
Symfony PHP with JS, Twig, HTMLS, CSS and MariaDB
PHP
Vagrant
Symfony 2
PHP
Vagrant
Symfony 2
PROJECTS
CoverLetter.work - Generate a tailored Cover letter in seconds - 100% free and open View Project
2024
Open source: https://github.com/gianpaj/coverletter.work
Open source: https://github.com/gianpaj/coverletter.work
TypeScript
OpenAI
Vercel
TypeScript
OpenAI
Vercel
Vitalik news (audio generation and news summarization) AIView Project
2023
Everyday summary of crypto news, recommendations/summaries on podcasts/interviews.
Everyday summary of crypto news, recommendations/summaries on podcasts/interviews.
Node.js
TypeScript
RESTful API
View more
Node.js
TypeScript
RESTful API
AI
View more