John Prantalos

About Me

Full-stack developer with 6 years experience in the automotive telematics and analytics industry. A perfectionist when the time allows, strategically selective on features when speed is the factor. Always looking for new challenges, experiences and getting to know new people with the same vision. Great team-player, project leader, and problem-solver.

What I Do

Server-side programming

Years of experience in vanilla PHP and Slim Framework, creating APIs, deploying relational databases and implementing the latest security principles.

Front-end development

Primarily working with template engines such as Twig, Liquid and Razor, creating robust and modern Web 2.0 apps and applications.

DevOps engineering

Having the know-how to set-up Debian and RHEL servers from scratch, securing them while implementing CI/CD schemas using Docker and TravisCI/ Gitlab pipelines.

Resume

Experience

2020 - Current
OneDealer GmbH

Software Engineer

Part of the After Sales Development Team, that created and currently maintaining the Digital After Sales Workplace (DASW) as well as the Online Service Management (OSM) installations, while be responsible in implementing new requests for the Digital Sales Workplace (DSW).

#csharp  #saphana  #razor  #angular  #rest  

2015 - 2020
Direct Solutions P.C.

Software Engineer

Built from scratch REST APIs for the company's platforms using Slim Framework written in PHP in a LAMP stack.

Set up and maintained the stack and software in company's servers.

Designed and written various web applications using PHP with Twig server-side, with Bootstrap and jQuery on the front-end.

Helped the organization of the development team by introducing the usage of Redmine as project manager and the specification of a development cycle using Git.

Lead the company's research team in experimenting on analytics and data analysis of the vehicle automotive telematics raw data obtained over the years.

Was part of the presentation team, providing technical answers.

Projects: Hermes-V, Need4Car, MySchoolBus, Gearalyze

#php  #rest  #twig  #slim3  #sapui  #bootstrap  #jquery  #javascript  #python  #photoshop  #illustrator  #adobexd  #devops  #fullstack  

2014 - 2017
DSG

Research Engineer

Organized, designed and developed the online presence of the Decision Systems Group (DSG) of T.E.I. of Sterea Ellada (now Univeristy of Thessaly).

Helped in the organization of workshop days

Presented PHP + MySQL and HTML5 + CSS3 Introductive workshops

Participated in various data analysis projects, one of which lead to Direct Solutions' Hermes-V.

Won the Crowdhackathon #insurance of 2016 with the DSG team.

Participated in Paypal's Battlehack Athens in 2015 with the DSG team.

#research  #anaconda  #mri  #hackathon  

2009 - 2015
Webhosting4U Ltd

Web Developer

Designed Gamebattles.gr - a gaming community - portal and organized tournaments.

Provided web graphics and logos

Developed PHP, Joomla! and Wordpress websites and scripts

Set up and maintained game servers

#photoshop  #illustrator  #steamcmd  #webmin  #linux  #devops  #joomla  #wordpress  #drupal  

Education

2011 - 2019
University of Thessaly

Bachelor in Computer Engineering

  • Decision Systems Group member
  • citySDK Development for Lamia City
  • FOSSCOMM 2014 Lamia volunteer

Certificates

C#: Getting Started

Pluralsight
August 2021

C#: The Big Picture

Pluralsight
August 2021

Visual Elements of User Interface Design

CalArts
1 August 2020

Electron for Desktop Apps: The Complete Developer's Guide

Udemy
7 November 2018

Intro to Python for Data Science

Datacamp
September 2016

Introduction to R

Microsoft
4 September 2015

Introduction to Bootstrap

Microsoft
20 August 2015

Certificate of Proficiency in English

University of Michigan
November 2008

Certificate of Competency in English

University of Michigan
May 2006