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Csongor Keller

Full stack Flutter developer
  • Ideal project length 1-6 months
  • Location Utrecht, Netherlands
  • Available from January 29, 2020

I am a freelance Flutter developer coming from web development background. In the past 5 years, I've built many custom backend and frontend web apps for my clients. Now I'm concentrating on Flutter because it is awesome to make native mobile apps in it. Let me know if you have a suitable project where you need a helping hand. 

Skills
  • Flutter
  • HTML5
  • CSS3
  • Laravel
  • Docker
  • Apache
  • Symfony
  • SQL
  • Jquery
  • WordPress
  • Magento
  • Joomla
  • Rest API
  • Git
Work
Experience

Project Manager Scrum Master in mobile app development

Nakko

 November 2019 - Present

Founder, developer

octopus visuals

January 2017 - Present  

Key activities within the role: 

  • Frontend, backend development 
  • Laravel web app development 
  • Flutter native app development for iOS and for Android

Project Manager Scrum Master

Angry Bytes

 April 2019 - November 2019 

Key activities within the role: 

  • leading data-driven software development in an 11 member scrum team 
  •  leading native and web app backend-frontend development 
  •  daily project management of multiple projects that has 2 million users worldwide 
  • representing user experience (UX)

Mobile and Webapp development manager

Generali

March 2018 - April 2019 

 Key activities within the role: 

  • Representing user experience (UX) in development, modification, and creation of new features for online customers 
  •  Customer-centered development of the online contract management system 
  • Managing development processes of native applications 
  • Writing specification requirements for UX design teams and IT development areas, testing, reporting bugs. 
  •  Participating in strategic planning of native apps and websites 
  • Participating in whole-company digitalization processes 
  • Development and full operation of the online analytical system within the scope of application management, making regular and occasional reports and analyzes 
  • Creating customer-centered chatbots for smarter and faster customer experience
  •  Creating faster and more powerful SQL queries and visualizations to extract data from internal databases for reports and analyzes

Wordpress developer, Insight Analyst

GGROW

 October 2017 - October 2018 

GGROW is a demand-based marketing management division. Coming from engineering backgrounds, we provide professional strategy and daily management of marketing activities as well as business development guidance for industrial companies. We understand complex technologies and market well-engineered products with a value-based approach. Our customers came from many areas of the business, from heavy to light industries.

Mobile Agency Insight analyst; Account manager

Planet of the Apps

October 2016 - January 2018 

I was working here as data scientist and account manager. Our partners were from telco and banking sectors, my tasks were mining their data and finding hidden context for data-driven native app development. 

  •  Leading data-driven native app development on Android and iOS side 
  • Data mining in Count.ly mobile app analytical system (https://count.ly/) 
  • Cross-platform strategy planning: Android, iOS, AppleTV, AndroidBox, ChromeCast app

We founded Planet of the Apps to create a competence center specialized mobile solutions for partners, helps them with technical tools and our experiences to make their mobile presence more efficient from every aspect. Create a better product through an understanding of their customers, optimize their marketing activity and exploit the hidden potentials in their business using the best practices and tools available on the market.

Frontend developer intern, Product Development Manager

Webb & Flow Ltd

September 2015 - February 2017 

At Webb and Flow we've developed a smart analytical system, self-learning content recommendation system, and server uptime monitoring system for both consumer and e-commerce clients. 

  • Frontend development: HTML, CSS, JavaScript, Wordpress, Joomla 
  • Search Engine Optimization: Technical and Content-based 
  • Enterprise clients accounting: Pharmaceutical companies, Banks, Insurance companies 
  • Product development: daily scrums, and development of digital products 

At Webb&Flow, we developed many solutions to increase online presence. Our solution-pack included online analytical system, smart content and product recommendations systems, all-in-one SEO packs, which enabled customers to build fast and SEO friendly websites from small companies to industrial partners as well.

Education

Obuda University

Electrical and Electronics Engineering

2013 - 2018

  • specialized ton mobile and internet network engineering
  • thesis: Laravel webapp calculating large datasets collected from sensors

Free Code Camp

Computer Software Engineering

2016 - 2019

Certificate in Full Stack Web Development 

MKB Fintech Academy

Fintech specialist

2016 - 2016

Schönherz Zoltan College Electrical

Electronics and Communications Engineering

2014 - 2015

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