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Backend Developer (m/f/d)

Berlin (Mitte)
Full-time
Permanent employee

These are your tasks

  • Develop and improve backend functionality related to marketing tasks, website features, and platform support.

  • Work closely with the development team and marketing team to understand requirements and implement practical solutions.

  • Take part in code reviews and follow agreed coding standards and best practices.

  • Test your code carefully to keep releases stable and easy to maintain.

  • Join technical discussions when needed.

  • Investigate and fix issues reported by product managers, marketing team members, or customers.


Technologies we work with:

  • Backend development in PHP following a microservice architecture

  • Frontend development using Vue.js

  • Queue management through RabbitMQ

  • Database systems represented by Redis and MariaDB

  • Container orchestration with Kubernetes and CI/CD using GitLab

  • Infrastructure provisioning via Helm

  • Tools SonarQube/Elasticsearch/Kibana/Logstash

What you bring

  • Around 2–3 years of experience in PHP backend development.

  • Ability to read, understand and maintain existing code effectively.

  • Basic to good knowledge of relational database management systems (RDBMS).

  • Understanding of SOLID principles and familiarity with MVP/MVPi architectures.

  • Working knowledge of algorithms and data structures.

  • Fully fluent English proficiency is mandatory; German language skills are a strong advantage.

  • Intermediate experience with frontend technologies (HTML, JavaScript and CSS) is desirable. 

  • Good problem-solving abilities and attention to detail.

  • Strong communication and collaboration skills, with an emphasis on clear expression of ideas.

  • Basic understanding of CI/CD principles, GitLab pipelines and Docker containers.

What we offer

  • Performance-related pay with direct participation in the success of your work
  • 30 days vacation per year
  • A bright, spacious office in the heart of Berlin (near Moritzplatz)
  • A home office arrangement with flexible days (home or office) 
  • A current MacBook Pro and modern equipment (incl. external monitor, keyboard, laptop stand, etc.) - for home office AND office
  • An additional EUR 500 budget to set up your home office so that you can work productively
  • Free lunch twice a week and fresh fruit in the office for the whole team
  • Professional guidance, insights and training in the various topics and tasks as well as in the internal processes of our company
  • Working a fast-growing B2B online company in the heart of Berlin
  • Short official channels, quick decisions and a lot of responsibility
  • A very focused company with high customer and employee satisfaction
  • A relaxed, yet challenging and supportive working atmosphere

About us

InStaff & Jobs GmbH was founded in February 2014 and places staff for temporary assignments throughout Germany. For over 10 years, we have been enabling companies to book staff at short notice and in full compliance with the law - simply, digitally, and efficiently.

Over 16,700 customers have already booked staff through InStaff. Our platform features over 117,000 verified and interviewed staff profiles, allowing us to fill jobs in a wide variety of fields with the perfect fit.
Our quality is reflected in our ratings: over 5,700 customer reviews with an average of 4.9 stars (eKomi) and over 640 employee reviews with 4.8 stars (Google) - primarily from workers who take on temporary assignments for InStaff.

To ensure our continued growth, we are seeking talented and ambitious employees in various fields.