Jorge Fuentes

Jorge Fuentes

Mentor
5.0
(75 reviews)
US$30.00
For every 15 mins
125
Sessions/Jobs
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First 15 mins free for your first session
ABOUT ME
★ First hour FREE for long-term mentoring, to check if we fit :-) ★
★ First hour FREE for long-term mentoring, to check if we fit :-) ★

● +20 years non-stop programming ● V8 (Node.js/Chromium) enthusiast ●

I'm a self-taught programmer since 2001, when I was 14 years old. I professionally work as a developer for 13 years now, when I created my first company.

I've been part in tons of projects of multiple kinds, using low-level languages like assembly or the good ol' C, or high-level languages like Java, Visual Basic, C#, JavaScript, Ruby, ActionScript or PHP, although the last 10 years I'm focusing more in JavaScript and its ecosystem, so when I discovered Node.js it was a blast for me. Almost all my projects are focused around Node.js since then.

I also LOVE teaching, so if you want to improve your skills don't hesitate to get in touch :-)

Spanish, English
Bucharest (+02:00)
Joined June 2022
EXPERTISE
6 years experience | 3 endorsements
6 years experience

REVIEWS FROM CLIENTS

5.0
(75 reviews)
Lena
Lena
July 2024
I cannot express enough how grateful I am for the guidance and mentorship I have received from Jeorge. As a junior developer, I often struggled with critical thinking and problem-solving tasks. Jeorge has been incredibly patient, knowledgeable, and supportive throughout my journey. His ability to break down complex concepts into understandable parts has significantly improved my skills and confidence. Thank you, Jeorge, for being an outstanding mentor and helping me become a better developer!
Yun Jo
Yun Jo
August 2023
Another great session. I know who to look for if I need help with deployment. Thanks a lot!
Lena
Lena
August 2023
Jorge is the kind of the mentor that I have been searching for since 2020 when I started learning how to code. I have met with so many mentors before Jorge and did not notice improvement in my coding skills. Jorge is GREAT at teaching and figuring your issue right away. He forces/ challenges you to think and figure the issue while guiding you. He is so patient and takes the time to explain complex concepts very easily. He also wants me to be a problem solver; so I can grow as a software engineer. He teaches based on simple projects; so you can have the basic understanding before moving to complex codes.
Lena
Lena
August 2023
Jorge is the kind of the mentor that I have been searching for since 2020 when I started learning how to code. I have met with so many mentors before Jorge and did not notice improvement in my coding skills. Jorge is GREAT at teaching and figuring your issue right away. He forces/ challenges you to think and figure the issue while guiding you. He is so patient and takes the time to explain complex concepts very easily. He also wants me to be a problem solver; so I can grow as a software engineer. He teaches based on simple projects; so you can have the basic understanding before moving to complex codes.
Sourav Dewett
Sourav Dewett
August 2023
Very friendly mentor to work with, has a ton of knowledge to share.
elias musleh
elias musleh
August 2023
he really helped me understand the difference between object oriented js and function programming js
elias musleh
elias musleh
July 2023
quick and efficient and helps find the best solutions to your problems
elias musleh
elias musleh
July 2023
hes always so insightful and very efficient with explaining and helping to fix the issue as fast as possible, and always leaves you understanding a little more than what you did when you walked in.
Yun Jo
Yun Jo
July 2023
He is the best server guy I met! very knowledgeable in what the issue was and he is patient but efficient with clarity of thoughts.
elias musleh
elias musleh
July 2023
awesome programmer and teacher would recommend to everyone
SOCIAL PRESENCE
GitHub
ksp-mod-manager
Kerbal Space Program Mod Manager. Keep your mods up-to-date with a few clicks.
Java
4
4
iso-bench
Small benchmark library focused on avoiding optimization/deoptimization pollution between tests by isolating them.
TypeScript
2
0
Stack Overflow
10998 Reputation
4
40
62
EMPLOYMENTS
Tech lead
N3uron
2016-06-01-Present
When I joined this company, they had a modular product based on a custom NodeJS fork wich was back-end only, configured with JSONs and Ja...
When I joined this company, they had a modular product based on a custom NodeJS fork wich was back-end only, configured with JSONs and Javascript files. The product focuses on gathering and processing of data, specialized on the industrial sector, so users can manage all the data a factory needs between machines, databases, edge nodes, historize, and so on. They needed a web interface to manage their product, so they started the front-end department with me. We created an Angular-like framework where the components were synced via WebSocket, so the different hot-plug modules were able to send their specific components to the front-end. Now I lead the front-end department and co-lead the backend department (about 20% of it, along with the backend leader). Things I created that I like the most: - A drag-and-drop-and-excel-like KPI designer with a custom framework, where you can drag-and-drop different elements and, via a property editor, you can add expressions to link their different properties between other element properties or to the product data that is synced via WebSocket. - A React + Mobx web interface to manage in the cloud all the nodes a company has. The nodes are connected to a MQTT broker (VerneMQ) where the web interface and the databse cluster (MongoDB) are also connected and via this broker all the data is synced. The user can also create a tunnel where a port is open on the server, which is also connected to the MQTT broker, and via this single node connection to the MQTT broker, the TCP tunnel sends and receives the data, so the user can access local TCP ports in the node side from a remote location. - A React + Mobx alike framework specialized on fast redraw of data, without a virtual DOM in between. State management is detected using Javascript Proxies. This was created after the previous project, so the previous project is actual React. Worth noting that when my teammate and me got the back-end lead, have improved the performance by 2x-5x.
HTML/CSS
Node.js
MongoDB
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HTML/CSS
Node.js
MongoDB
React
Socket programming
MobX
MQTT
High-Performance Computing
Lmdb
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Co-founder
Air View Sport
2014-08-01-Present
Co-founder and main only developer of a live video producer company specialized on athletics and cycling. Our main goal was to allow smal...
Co-founder and main only developer of a live video producer company specialized on athletics and cycling. Our main goal was to allow small events to stream the race to a big LED screen on the finish line, so the people can follow their relatives progress instead of just waiting for them to arrive. After 7 years, we stream to national TV stations some important athletics and cycling events in our country. The most difficult part was to send a fluid video feed from several motorbikes around the race to the production zone, where the images were mixed and sent to the LED screen. We reached a solution were we had a multi-node system where there was a main node and multiple sub-nodes (usually 6). Each sub-node had a 4G connection. The main node was the one creating the video feed, and, instead of sending the video feed using a single connection, it sent small frames to the different sub-nodes, which sent the frames to a server, and the server rearranged the video feed before sending it to the production zone. The protocol was made over UDP and it featured packet loss detection to resend to another sub-node and do not lose a single video frame, bandwidth management to select the less stressed sub-node to send each frame each time, and video bitrate update on-the-fly depending on the total bandwidth of all the sub-nodes, as sometimes the motorbikes go through zones with really low 4G coverage. All this was first made in C++, and later on switched to NodeJS (as I was enjoying Javascript way more) and squeezed with RPis, a bunch of power banks and a couple of 4G routers and modems inside a motorcycle suitcase.
HTML/CSS
C++
Node.js
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HTML/CSS
C++
Node.js
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Founder
Zas Mobile
2010-01-01-2016-03-01
Founder and main only developer of a telecommunications operator with about 1 million users in its lifespan. The main function was to ser...
Founder and main only developer of a telecommunications operator with about 1 million users in its lifespan. The main function was to serve digital content which users pay using SMSs as micropayments. The landing pages were made using HTML5 with plain JavaScript/CSS, which were connected to our back-end via Ajax. The back-end was made in PHP and the database was made in MySQL. Our back-end was also connected to the 3 main telecommunications operators via PHP, where we receive asynchronous callbacks via webhooks to act accordingly.
HTML/CSS
PHP
MySQL
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HTML/CSS
PHP
MySQL
AJAX
Webhooks
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PROJECTS
satori.com live data channels
2017
satori.com was a platform with tons of different real-time streams, from plane locations to your private home IoT data. I created some ch...
satori.com was a platform with tons of different real-time streams, from plane locations to your private home IoT data. I created some channels and received an Honorable Mention prize for an earth and space weather channel where you can receive, apart of realtime weather data (temperature, solar wind, etc), warnings from hurricanes to solar storms. Sadly satori.com is now closed, but you can still find information by searching "Satori Live Data".
Node.js
Socket programming
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Node.js
Socket programming
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PacoPack
2022
PacoPack is a JavaScript data packer focused on performance and being 100% JSON.stringify/parse compliant, so you can switch your JSON.st...
PacoPack is a JavaScript data packer focused on performance and being 100% JSON.stringify/parse compliant, so you can switch your JSON.stringify/parse to PacoPack without any refactor and receive about 10x performance. Is perfect for data to binary serialization: for sockets or for LMDB. It features a real-time optimization check for string serialization where, depending on the string length and CPU, it is more performant to use pure JS logic instead of Node.js native logic.
TypeScript
Performance Optimization
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TypeScript
Performance Optimization
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