Senior Product Software Engineer (back end PHP) (m/w/d)

limited

Interzero Europe GmbH • Köln

  • Vollzeit

Köln

ab sofort

Interzero is one of the leading service providers in closing product, material, and logistics cycles and a pioneer in plastics recycling, operating Europe’s largest sorting capacity. Guided by the principle of “zero waste solutions,” the company supports more than 80,000 customers across Europe in the responsible handling of recyclable materials, helping them improve their sustainability performance and conserve primary resources. With around 2,000 employees, Interzero generates annual revenues of nearly one billion euros. According to Fraunhofer UMSICHT, Interzero’s recycling activities alone saved approximately 1.04 million tons of greenhouse gas emissions and 8.09 million tons of primary raw materials compared to primary production in 2024. Further information at: www.interzero.de.

Aufgaben

  • Innovation: You are motivated to transform one of the oldest industries from the ground up.
  • Development: You are responsible for the independent, goal-oriented development of complex web applications and services based on modern, lightweight architectures using PHP, SQL, JavaScript, HTML, and CSS.
  • Project Ownership: After a comprehensive onboarding phase, you take ownership of the technical implementation of innovative projects and actively contribute to the further development and maintenance of existing systems.
  • Full Stack: You develop and maintain both frontend and backend applications.
  • Focus: Your main focus is on web based application development with Laravel (or other advanced frameworks like Symfony, Magento, or others).

Profil

  • Education & Experience: You have completed training as an application development specialist, a degree in computer science, or have several years of proven experience as a PHP developer.
  • Technical Skills: You possess strong knowledge of web technologies such as PHP 8, MySQL/MariaDB, JavaScript/Typescript and basics like HTML/CSS.
  • Tools & Frameworks: You have experience working with version control systems (Git) and Atlassian tools, and ideally bring experience with Laravel and related Testing Frameworks.
  • Working Style: You handle projects with a high level of accuracy and responsibility and impress with your structured and solution-oriented approach.
  • Languages: You are fluent in German, both written and spoken, and have good English skills.
  • Analytical Skills & Independence: You complement your profile with independent working skills and strong analytical thinking.

 

Beyond the role-specific requirements, we share a common mindset across Product & Technology. We are looking for people who are eager to learn, take ownership and contribute to a collaborative, customer-focused culture.

  • Customer Focus: You are curious about customer needs and enjoy turning real-world challenges into meaningful solutions.
  • Collaboration & Team Synergy: You value teamwork, work effectively across functions and contribute to a positive and high-performing team environment.
  • Continuous Learning & Improvement: You embrace feedback, reflect on your experiences and continuously strive to improve.
  • Outcome Orientation: You take ownership of your work, focus on results and thrive in an environment with a high degree of autonomy.
  • Fact-Based Decision Making: You use data, evidence and sound reasoning to make decisions and communicate your recommendations.

Angebot

  • Job Security: You can expect a varied, exciting, and secure role with one of the largest environmental service providers in a future-proof industry.
  • Compensation: You receive performance-based pay with a strong focus on maintaining your work-life balance.
  • Flexibility: You benefit from flexible working hours and the option to work remotely.
  • Creative Freedom: You work in an environment where ideas, initiative, and creative freedom are encouraged and supported.
  • Flat Hierarchies: You operate within flat hierarchies and quickly take on responsibility for your own tasks.
  • Collaboration: You experience a culture of collaboration and respect at eye level, both within and beyond your team.
  • Development: You have access to internal and external training and development opportunities.
  • Health: You benefit from a comprehensive health management program.
  • Benefits: You receive attractive perks such as corporate benefits, bike leasing, free drinks and fruit on-site, and coverage of the Germany ticket or an Edenred card.
Ansprechpartner

Yannick Bartsch (Recruiting Team)

 

Jobs mit Sinn - für unsere Zukunft

Interzero – resources SAVED by recycling
Interzero – resources SAVED by recycling

Im Jahr 2022 hat Interzero 2,1 Millionen Tonnen Wertstoffe im Kreislauf geführt. So konnten wir 8,7 Millionen Tonnen Primärressourcen schonen. Dies entspricht dem Gesamtgewicht von mehr als 170.000 Einfamilienhäusern. Gleichzeitig wurden durch die Einsparung von einer Million Tonnen Treibhausgasen CO2-Emissionen von 100.000 Einfamilienhäusern kompensiert. Let’s #MoveTheDate

Meet the team

Karin Schroer

Mein Arbeitsalltag bei Interzero ist sehr vielfältig und jeden Tag anders. Ich mache die Ressourcen- und Zeitplanung, koordiniere aber auch neue Projekte und priorisiere Aufgaben. Ich habe Freiheiten und kann mir selbst Schwerpunkte setzen. Neben meiner normalen Tätigkeit macht es mir auch Spaß, als Nachhaltigkeitsbotschafterin aktiv mit Kolleg*innen verschiedene Initiativen voranzutreiben.

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