Can Celebi

Backend development, consulting

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Werdohl, Germany

Experience

Jan 2023 - Present
3 years 1 month

Backend development, consulting

Kloppe Media GmbH

  • Development and implementation of APIs and SDKs for online services in the telecom environment
  • Platform improvements and development of new features for comprehensive telecom solutions
Jan 2022 - Jul 2022
7 months

Fullstack developer (freelance)

IU Internationale Hochschule - IU Group N.V.

  • Development of an applicant platform using PHP 8, JavaScript, Laravel 9, Vue.js 3, Tailwind 3
  • Deployment on AWS
  • Database with synchronization to Salesforce and event sourcing
  • High-performance application with middleware functions and API endpoints
  • Dynamic profile generator with live view
  • Matching portal for capturing questions and metrics
  • High test coverage in front and backend
  • Close collaboration with the design team via Figma
  • Implementation in Vue.js for B2B and B2C portals
Jun 2021 - Present
4 years 8 months

Backend development, frontend development, SEO adjustments, plugin development, web vitals, internationalization, consulting

A-Z Gartenhaus GmbH

  • Development of various plugins using PHP, Shopware 5, Vue.js, MySQL, and Docker
  • Consulting on internationalization and technical SEO
  • Conducting code reviews and approvals within the company
Apr 2020 - Present
5 years 10 months

Freelancer

  • Extensions for e-commerce platforms and websites
  • Custom web applications frontend + backend
  • SEO & SEA strategies and implementation
  • Development of AI systems
  • App development
  • Network administration
Jan 2019 - Present
7 years 1 month

Architecture, leadership, and development

Shrainz.com

  • Development of a custom e-commerce software solution with a large user base using Laravel with Redis and MySQL in the backend and HTML, JavaScript, Vue.js, Tailwind in the frontend
  • Complete rebuild of the admin panel and shop frontend
  • Implementation of an automated process for label printing and forwarding address data to shipping providers
  • Deployment on a dedicated server and maintenance
  • Focus on high performance for up to 2,000 simultaneous purchases
Jan 2019 - Present
7 years 1 month

Architecture, leadership and development

Shreddedbrothers.com

  • Developed an AI-driven fitness platform for influencers with user management, internal chat and AI-based plan generation
  • Used Laravel, PHP, Vue.js, Bootstrap, HTML, CSS, Python, MongoDB, MySQL
  • Developed and managed the SEO strategy
  • Deployed and maintained the platform
  • Scaled it to the largest Turkish fitness platform with 1,000,000 subscribers and personalized nutrition and training plans
  • Implemented caching strategies for performance optimization
Jan 2019 - Dec 2019
1 year

Co-owner, management and development, SEO + SEA

Spiegelando.de

  • Created the online shop with xt-Commerce, independently developed the frontend using JavaScript, CSS and HTML
  • Migrated to Shopware and integrated the generic product configurator
  • Optimized SEO and SEA
  • Server administration
Jan 2018 - Dec 2020
3 years

Extension of generic product configurator for Shopware 5

Jan 2018 - Dec 2020
3 years

Generic product configurator

  • Developed a generic product configurator with Laravel and PHP
  • REST API interface and admin area for managing product information and conditions
  • Step-by-step process for users to choose configurations with dynamically generated images and prices
  • Generated a unique product code for support purposes and integrated it into the shop plugin
  • Deployed with Plesk and Ubuntu in a Docker environment, set up GIT webhooks
Jan 2018 - Dec 2020
3 years

Architect, lead and developer

Generic Product Designer

  • Developed a solution to connect a designer to e-commerce platforms (Shopware, WooCommerce) via plugin using REST API
  • Displayed the designer in the front end with JavaScript
  • Managed data such as measurements, base image and product configurations via the backend
  • Provided interactive editing of areas, adding/removing text, logos, etc.
Nov 2017 - Jan 2020
2 years 3 months

Lead Software Developer

Bittner Bauelemente GmbH

  • In-house development of content management systems
  • Development of extensions for Shopware 5
  • Development of extensions for Plentymarkets
  • Frontend and backend web applications
  • Scrum Master (Agile software development)
Apr 2017 - Oct 2017
7 months

Research Associate in Programming

TU Dortmund, Faculty of Computer Science, Chair of Software Engineering

  • Development of new programs and extension of existing ones
  • Web applications
  • CMS extensions
Feb 2016 - Feb 2017
1 year 1 month

Architecture and Implementation Team Lead (Back-End)

In4All

  • Building an online platform for math and computer science learning materials
  • Development of a back end with interactive questionnaires and a question system for automatic evaluation (cloze, multiple-choice, etc.)
  • Implementation of a user-friendly interface for authentication, management, and compression of content
  • Focus on intuitiveness and user-friendliness for effective management
Feb 2015 - Jun 2015
5 months

Bachelor Thesis

  • Development of a MediaWiki questionnaire extension for music therapy for children with ADHD
  • Using PHP, HTML, CSS
Mar 2010 - Present
15 years 11 months

Self-Employed

Self-Employed

  • Software development
  • Consulting
  • Partner in various companies offering SaaS and e-commerce products
Jan 2007 - Present
19 years 1 month

Co-owner, architecture, management and development

CandiSoft

  • Freeware software to automate file downloads from file hosts
  • Detection of download archives for guest and premium users, with automatic downloading
  • Integrated decrypter for encrypted links and image recognition interface for free accounts
  • Reconnect feature to download with a new IP address
  • Opening container files and automatic extraction
  • Plugin system from version 3 for developing custom plugins
  • Runs on Microsoft Windows operating systems
  • 500,000–1,000,000 users at peak, translated into 8 languages, listed and tested by leading tech publications

Skills

Process Models

  • Scrum
  • Kanban

Version Control

  • Git
  • Svn

Deployment Ci/cd

  • Docker
  • Jenkins

Analysis Tools And Testing

  • Cypress
  • Phpunit
  • Phpstan
  • Php Insights
  • Php Cs Fixer
  • Eslint

Operating Systems

  • Macos
  • Linux/unix
  • Ios
  • Android
  • Windows 2000/xp/7/8/10/11

Programming Languages

  • Php
  • Javascript
  • Java
  • Delphi/pascal
  • C/c++
  • Python
  • Haskell

Web Technologies

  • Html
  • Css
  • Blade
  • Twig
  • Pug
  • Smarty
  • Xml
  • Json
  • Jquery

Frameworks

  • Laravel
  • Symfony
  • Vue.js
  • Nuxt.js
  • Node.js
  • Express.js
  • Bootstrap
  • Tailwind
  • Vuetify

Databases

  • Mysql
  • Mongodb
  • Redis
  • Elasticsearch
  • Salesforce

Machine Learning / Artificial Intelligence

  • Artificial Neural Networks
  • Scikit-learn
  • Tensorflow

Content Management Systems

  • Wordpress
  • Mediawiki
  • Joomla

E-commerce

  • Shopware 5
  • Shopware 6
  • Magento
  • Plentymarkets

Marketing

  • Keyword Analysis
  • Content Analysis
  • On-page Optimization
  • Adwords
  • Social Marketing (Facebook Business)
  • Google Analytics

Ides

  • Intellij
  • Webstorm
  • Phpstorm
  • Eclipse
  • Android Studio
  • Visual Studio
  • Lazarus
  • Delphi
  • Xcode
  • Ms Studio

Cloud

  • Aws Cloud

Other

  • Restful Web Services (Api)
  • Domain-driven Design
  • Mvc
  • Postman
  • Figma
  • Metabase
  • Ms Office
  • Latex
  • Uml
  • Bitbucket
  • Jira
  • Confluence
  • Cpanel

Languages

German
Native
Turkish
Native
English
Advanced

Education

Oct 2011 - Apr 2015

TU Dortmund

Bachelor of Science · (Core) Computer Science · Dortmund, Germany

Oct 2007 - Jun 2010

Bergstadtgymnasium

German high school diploma · High School · Lüdenscheid, Germany

Oct 2001 - Jun 2007

Städtische Realschule

Secondary school certificate with qualification · Secondary School · Werdohl, Germany

...and 1 more

Certifications & licenses

Scrum Workshop

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