PHP Developer Jobs in Cologne

You develop custom web applications in PHP or C#, utilize modern web technologies, and work on e-commerce solutions as well as CMS projects for international clients in agile teams.

In this role, you will develop new features and optimize existing functions in PHP, collaborate closely with users, and integrate external APIs to enhance the usability and efficiency of our applications.

In this role, you will develop new software applications in PHP, optimize existing ones, ensure software quality through testing, and maintain software elements for analysis and bug fixing, while working with HTML, CSS, and JavaScript.

In this role, you will develop web applications using PHP and JavaScript, optimize existing software solutions, and integrate APIs while collaborating closely with interdisciplinary teams.

In this role you develop PHP and database logic for WordPress, extend and optimize plugins and complex applications, build interfaces to third-party systems, and ensure performance, documentation and quality assurance.

In this role you will design and extend PHP-based web applications, implement and test web solutions, maintain portals and frameworks, optimize performance and translate concept requirements into technical specifications.

In this role you will develop web applications, optimize internal software, implement new features with PHP and JavaScript, write and run tests, ensure quality, work with PostgreSQL and produce documentation in German and English.

In this role you develop web applications, design architectures, improve backend systems and data models, optimize performance of existing apps, and implement features and refactors collaboratively with the team.

In this role you design, plan and develop websites and databases to client requirements, execute software tests for quality assurance, document and resolve bugs, and maintain and adapt existing interfaces.

In this role you analyze and resolve reported technical issues, build PHP-based fixes, document errors and solutions, collaborate closely with development teams, and implement or support changes in customer systems.

In this role, you will develop web-based applications using PHP, optimize existing systems, conduct data analyses, and implement software solutions on the internet platform.

In this role, you will develop web applications and oversee the entire development cycle. Your tasks include programming in PHP and JavaScript, enhancing a MySQL database, and making adjustments using HTML and CSS.

In this role, you will develop web portals using PHP and Java, contribute to ongoing development projects, maintain system interfaces, and conduct quality assurance testing.

In this role, you will develop web applications using PHP, enhance existing e-commerce solutions, and create new interfaces and plugins. You will closely collaborate with other departments, significantly contributing to project success.

In this role, you will develop web applications using PHP and JavaScript, optimize existing systems, integrate APIs, conduct code reviews, and collaborate closely with product management and design teams.