John Simons

4.9

(25 reviews)

US$25.00

For every 15 mins

Sessions/Jobs

ABOUT ME

Full stack developer with a focus on javascript based stacks.

I am a full stack software engineer and entrepreneur with between 1 and 10 years professional experience working with the technologies listed.

Current focus lies in the development of IoT and cross-platform (web,dektop,mobile,IoT) solutions.

My areas of expertise are the general syntax and usage of languages. Effective, correct and appropriate use of software design patterns. Defining algorithms. Handling (possibly large) amounts of data effectively and presenting results to the end-user in a clear and timely manner. Designing and managing the infrastructure to drive these results. Working with stakeholders to design, budget, and plan software development projects and their architecture, turning business objectives into measurable goals. Planning for and scaling with growth. Troubleshooting and resolving technical crisises and finding and remediating their root causes. Defining and leading (agile) development processes and monitoring their performance. Measuring, predicting, providing insights into and managing risk factors in software development projects. Experimental projects and research into, analysis of and reporting on new technologies/software development techniques.

Dutch, English

Amsterdam (+02:00)

Joined August 2014

EXPERTISE

JavaScript

7 years experience | 1 endorsement

Used as the programming language for Node.js, React, Angular and Meteor projects.

Express.js Vue.js Node.js React Reactive Programming TypeScript

Server

11 years experience

Cisco, Windows Server, *nix, Linux, FreeBSD, VMware ESXi, etc.

Virtualization System Administration Server Administration

PHP

11 years experience | 1 endorsement

Custom ERP software from scratch, plugins for WordPress, and everything in between.

MySQL

10 years experience

Used as a RDBS for many projects. Experience ranges from design to optimization of the structure as well as the parameters of the server ...

Used as a RDBS for many projects. Experience ranges from design to optimization of the structure as well as the parameters of the server itself.

SQL

10 years experience

Experience ranges from design to optimization of the structure as well as the parameters of the server itself.

Performance Optimization Database MySQL

Performance Optimization Database MySQLOptimizationLarge scale

6 years experience

Built several tools that act as a layer between industrial PLC systems and RDBSs for logging Built KinEmote, software to translate 3D ca...

Built several tools that act as a layer between industrial PLC systems and RDBSs for logging Built KinEmote, software to translate 3D camera readings to remote control commands for e.g. media center software, games Mentored a CS student for several months with the basics of programming

DevOps

7 years experience

Managing bare-metal systems as well as VPSs that host mainly webapps. Setting up automated CI and CD pipelines to increase and monitor co...

Managing bare-metal systems as well as VPSs that host mainly webapps. Setting up automated CI and CD pipelines to increase and monitor code quality measures.

Aws Codepipeline Cd Codeship

Aws Codepipeline Cd Codeship Codepush Continuous Integration

REVIEWS FROM CLIENTS

4.9

(25 reviews)

David Wu

July 2018

No amount of stars can express how thankful I am for john. He went far above and beyond the call of duty and truly cares about his students. Worth every penny and then some.

Vaibhav

April 2016

Excellent mentorship, is how I would sum it. John clearly explained the reasoning and also made edits to my code, to solve my problem.

Zev

January 2016

John has been an excellent mentor so far. My fear factor with setting up a LAMP server has gone from a 10 to a 5, and I feel much more capable of feeling my way through issues on my own. In addition, tweaking legacy PHP code feels a bit less intimidating, migrating servers, etc.

ned

September 2015

Great mentor, found a solution that many others could not.

rob

September 2015

super great code!

Scott Carlton

August 2015

John Simons was awesome. As early as it was for him he took the time to help me solve my canvas issue. He did it effectively and what I consider timely. Props to him.

Steven Haddock

August 2015

Great experience. John was able to answer all of my questions and was very helpful and respectful.

Removed User

July 2015

Very helpful and knowledgable. I started learning almost immediately during our discussion.

Brian Wilkinson

July 2015

John is a brilliant mentor and has been collaborating and working independently on apps that use (Node, JS, Express).

Alan Clarke

May 2015

A gentleman, very patient and efficient with a excellent ability to impliment solutions

SOCIAL PRESENCE

GitHub

KinEmote

KinEmote - Kinect Driven Media Control

xilinx-xcau15p-pcie-gen4

This is a simple Xilinx XDMA example that targets the Xilinx XCAU15P and uses PCIe4.0 x4 to DDR. There is also a BRAM example.

VHDL

EMPLOYMENTS

Owner/CTO

Totalitee

2015-06-01-Present

I have been out of the game for a few years due to illness, which is no longer an issue for me I am glad to inform you. Now that I am ...

I have been out of the game for a few years due to illness, which is no longer an issue for me I am glad to inform you. Now that I am fully operational I'd love to get to work on your startup and get it fully operational. I am very familiar with early-stage startups and can work with your Figma design files to build up the Vue.JS frontend and backend systems piece by piece. I have looked over your other requirements and feel very confident that I can deliver your project for you. I'd love to schedule a call to get to know each other and make sure there is a good click between us as we'd be working together fairly intensively on the project. Best regards - John

Full Cycle development