Senior Software Engineer – Fullstack (PHP & React) (f/m/x)

At Seven Senders, we connect people and markets, making international shipping a simple matter.

We are the leading platform for cross-border parcel delivery in Europe. We support e-commerce companies in successfully implementing their growth and internationalization plans and connecting millions of consumers with their desired products. Whether the focus is on speed or cost efficiency, we provide direct access to Europe's premier local carriers. Responsible for the daily end-to-end supply chain from the warehouse to the customer's doorstep, we ensure the parcels reach their destination efficiently and reliably.

Our mission is to connect markets with unparalleled ease using our innovative platform, which combines the best European delivery services with local logistics expertise. Since Johannes Plehn and Thomas Hagemann founded the company in Berlin in 2015, we've grown into a dedicated team of over 220 professionals. Today, we're proud to serve renowned clients such as ASOS, Shop Apotheke and Tamaris, continually advancing our journey as a European operating champion.

Job Description

Do you want to work with a modern tech stack and clean architecture, with zero legacy code to maintain?

We are looking for a skilled and motivated Software Engineer to join our team and work on software projects tailored to the specific needs of our clients. You will be involved in the entire software development lifecycle—from concept and architecture to deployment—building robust, scalable systems using modern technologies and practices. And no, we don't have the legacy code!

This role offers the opportunity to design and implement solutions with real-world impact, leveraging Domain-Driven Design (DDD) principles and collaborating closely with other engineers, product managers, and stakeholders.

Our core tech stack includes PHP 8, Symfony 6, JavaScript, React, MongoDB, AWS, Docker, and Kubernetes.

The essence of your role

• Design, develop, and maintain mostly backend services using PHP (Symfony and API Platform)
• Work with MongoDB and other databases to design efficient and scalable data models
• Develop and manage containerized applications using Docker and deploy them on Kubernetes
• Ensure cloud-native deployment and scalability using AWS infrastructure
• Write clean, maintainable, and well-tested code, actively participating in design discussions, code reviews, and agile development ceremonies

This is what you need to succeed

• 5+ years of experience in backend software development with strong proficiency in PHP, particularly with the Symfony framework
• Practical experience with React, either in a production environment or through personal projects
• Hands-on knowledge of MongoDB, including data modeling and performance tuning
• Strong grasp of software architecture concepts and Domain-Driven Design
• Experience with Docker and Kubernetes in production environments

What we offer:

Flexible & Hybrid Work: Our office is at Alexanderplatz; we have a hybrid working model with flexible remote-office set-up and working hours. And if you wish, you can work from almost anywhere for up to 2 months per year.

Benefits: We offer company lunches twice per month, a corporate benefits platform, and German & English language courses.

Mission Zero: Climate-neutral and long-term impact. With our green initiatives, we are reaching climate neutrality for ourselves, and hopefully, we're inspiring the entire logistics sector to join us to create a sustainable future.

Vibrant Culture & Community: We embody collaboration, open doors, and a no-fuss results focus, and we are successful with our data-driven and efficient working approach. We like to celebrate and come together, and we strive for a workplace buzzing with energy and camaraderie, highlighted by regular team events, BBQs, and company-wide celebrations.

Inclusive Environment: We value diversity and welcome all applicants regardless of ethnicity, religion, national origin, sexual orientation, gender identity, age, or disability.

If you meet the above qualifications and are excited about the opportunity to join our team, we encourage you to submit your application today. Please submit your English CV. We look forward to hearing from you!