Jens F. - Senior PHP Developer

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Berlin, Germany

Experience

Feb 2025 - Apr 2025

3 months

Senior PHP Developer

Own Project

Developing an app that mirrors the stock portfolio.
Laravel 12, PHP 8.4, MySQL, Git, IntelliJ, GitHub, AlpineJS, Tailwind CSS

Nov 2024 - Feb 2025

4 months

Senior PHP Developer

Own Project

Developing a multi-domain CMS
Laravel 11, PHP 8.2, MySQL, Git, IntelliJ, GitHub, PHPUnit, Tailwind CSS

Jan 2024 - Oct 2024

10 months

Senior PHP Developer

EnBW

Bug fixing and feature development in PHP
Slim Framework, PHP 7.4, MySQL, Git, IntelliJ, API, Swagger, AWS, GitLab, Powercloud, Edifact, Code review
Debugging issues
Developed new features for the web application in PHP 7.4
Unit tests in PHPUnit and Codeception
Creating API interfaces

Nov 2021 - Dec 2023

2 years 2 months

Senior PHP Developer

Zone35

Bug fixing and feature development in PHP
CakePHP 3, PHP 8.1, MySQL, Git, IntelliJ, REST API, Swagger (OpenAPI), TypeScript, ReactJS
Debugging issues
Developed new features for the web application (Assisto) in PHP 7.3/8.1, TypeScript, ReactJS
PHP unit tests and Codeception
Creating API interfaces for mobile apps

May 2021 - Nov 2021

7 months

Senior PHP Developer

Kemas

Developing an Electron.js app, bug fixing in PHP
PHP 7.3, MySQL, Git, IntelliJ, REST, XML, Electron.js, Node.js, REST API, Swagger (OpenAPI)
Debugging issues
Developed new features for the web application in PHP 7.3, TypeScript, Electron.js and Node.js
Expanding API interfaces

Apr 2020 - Apr 2021

1 year 1 month

Senior PHP Developer

Powercloud/EnBW

Develop market communication for metering point operators
PHP 7.3, PHPUnit, slim, MySql, Git, intellij, Rest, XML, edifact, Bitbucket, bamboo, Rest-API, swagger (open-api), MariaDB
Convert edifact messages to XML format
Convert XML messages to edifact
Validate messages for validity
Send messages via API
Created PHP Unit Tests

Dec 2018 - Mar 2020

1 year 4 months

Senior PHP Developer

Bamboo Software OHG!

Maintained the web app for couriers
MySql, PHP 5, Symfony Framework 2.6, Zend Framework 1.11, jQuery, CSS, HTML5, XML, gitlab
Fix bugs
Develop new features in PHP 5

Dec 2017 - Mar 2018

4 months

Dortmund, Germany

Senior PHP Developer

LA Kreis Dortmund

Relaunched the Dortmund Athletics District website
PHP 7, Laravel 5.4, MySql, jQuery, Traits, Repository Pattern, CSS, HTML, PHP Unit, Mockery, Github, Bugsnag, Mailgun
Display entries from Excel tables in HTML and give clubs the option to register for competitions. Participants can be imported into a 3rd Party Software.
Developed new features for the website in PHP 7
Created PHP Unit Tests

Nov 2016 - Sep 2017

11 months

Berlin, Germany

Senior PHP Developer

Airberlin

Maintained the desktop and mobile website as a full-stack developer
MySql, PHP 5, Zend Framework 1.12, jQuery, PWA, CSS, HTML5, XML, Jira, Confluence, Jenkins, Bitbucket, scrum, Zend 1, SOAP, API, JavaScript, PhpStorm, SVN, Windows, Atlassian Confluence
Fix bugs
Develop new features in PHP 5
Adapt legacy code
Removed bugs in the PWA

Sep 2016 - Nov 2016

3 months

Berlin, Germany

Software Developer

D-Trust Berlin / Bundesdruckerei

PHP 5, PHP 5.5, Zend Framework 1.12, svn, Kanban, Mysql, Atlassian JIRA, IntelliJ, Linux ubuntu, Windows, Atlassian Confluence, Fisheye
Implement new requirements and security requirements
Implement customer requirements OWASP 1 and 4 and convert the model classes of the Zend Framework to stored procedures
Write PHP Unit Tests for the Zend Db module
Consult on improving work organization

Sep 2011 - Sep 2016

5 years 1 month

Halle (Saale), Germany

Software Developer

Automotive, DB Rent Car Sharing

PHP 4/PHP 5, MySQL, XML/WSDL, Git/CVS, Ruby, Gerrit, Jenkins, Scrum, Docker, Java Mockito, in-vehicle onboard computer technology, carsharing, API, AT-Commands, Shell, IntelliJ, Scrum, MS SQL, Atlassian JIRA, Atlassian Confluence, Kanban, PHPUnit, Sinatra
Fixing bugs
Completing customer requirements in PHP 4
Operating and adjusting the communication between the onboard computers in vehicles and the servers
Extending the API functionalities
Creating and further developing the API to connect external websites and apps
Further developing the web server interface for carsharing customers to the onboard computer access technology middleware for short-term vehicle rentals
Programming a microservice in Ruby to retrieve the onboard computer driving data
Co-responsible for operating the onboard computer access technology in the carsharing area
At DB Rent, the vehicles and their rentals for around 200 carsharing providers in Germany are managed (for example: mobile phone access)