Backend Engineer


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Description du poste:

About the role
As a Backend Engineer (f/m/x) your main objective is to deliver features for our users. You will design and build products with your team, working together with product managers, designers, and frontend engineers to solve common goals. You should be a team player with strong technical knowledge, who is eager to learn, and have a passion for building products that our users love.

How you will contribute

  • Design and develop innovative, secure solutions with your team
  • Work closely with stakeholders, product and QA to deliver high-value, performant, and robust features
  • Own your work from concept all the way to production, including proposal, discussion, and execution
  • Handle complex data processing and modelling
  • Work closely with other teams to continue the evolution of our system from a well-structured monolith to a service-oriented architecture
  • Share your knowledge, including mentoring the engineers in your cross-functional team to help them grow and constantly improve
  • Actively participate in and drive agile approaches and processes
  • Support the company to grow in a healthy way by creating a feedback culture, and participating in hiring and capacity planning

Who you are

  • Professional experience with common languages (such as Java, Javascript/Node, Python, etc.)
  • Comfortable working with scalable web applications and frameworks (Spring Boot, REST, Events, Kafka, etc.)
  • Advocate of the DevOps culture with no fear of CI/CD
  • Enjoy working with distributed systems and all the complexities that they bring
  • Bring a positive and solution-oriented mindset
  • Possess a desire to innovate and the pragmatism to find the most optimal solutions
  • Self-motivated and self-managing, with strong organizational skills
  • Great communicator that can easily explain ideas and engage people
  • Empathy and understanding of other disciplines in and around the product

About Zenjob

We are Zenjob, a Berlin-based fast-growing digital staffing company backed by strong international investors including Acton Capital, Atlantic Labs, AXA Venture Partners, Forestay Capital, and Redalpine Venture Partners. Our technological staffing solution is used daily by thousands of students and hundreds of well-known brands in sectors such as e-commerce, logistics, fashion retail, food retail, and hospitality.

Having recently closed our $30m Series C financing round, we will continue a rapid roll-out of our services across Germany and beyond into the international market.

For us at Zenjob our culture is our key to success. We live every day by our four values: honest, humble, hungry and helpful. We embrace inclusiveness as the core element to shape diverse and therefore powerful teams.

Engineering at Zenjob

Technology is core to Zenjob's vision. Our engineers from all over the world are building the services that power our platform – our mobile and web apps, our matching core, and the digital document management system. Engineering works alongside Product to support every department to create value for our users and customers. We love to adopt new technologies, and strive for ownership and excellence to build the work platform of the future. To achieve this goal, we base everything we do on our 5 engineering principles: speed, simplicity, stability, scalability and security.

Zenjob wants to create a great experience for both talents looking for work, and companies searching for part-time help. To meet our users needs we are organised into two value streams with multiple cross-functional teams. A third value stream provides the infrastructure, as well as shared services.

On top of that, we are building an internal engineering community that supports our growing team and maintains best practices and technical excellence throughout the department. Building a large scale platform is not only a technical challenge, but an exciting social and organisational one as well.

Bring Your Whole Self to Zenjob

We know that diverse teams build better products, and we care to create a welcoming environment for everyone. With this in mind, we want to build our teams, cultivate leaders and create an innovative and successful company. This is a special shoutout to people from underrepresented groups to come shaping the future of work with us!

Our tech stack

Our platform is powered by AWS, Kubernetes, Istio, Terraform and Docker. These tools form the foundation that allow us to deploy and scale fast and easily. Everything is monitored and logged by Prometheus and Grafana including request tracing for better observability.

Our microservices and backends are running on Nodejs, and Java with Spring Boot and Groovy, which include easy-to-use templates for new microservices.

On the client-side we run on React and Redux with the help of a Microfrontends for the web, while we use Swift for iOS and Kotlin for our Android Apps.

We test our software by using Selenium, JUnit, Spock, and React-testing-library.

We store data in various persistence technologies like Kafka-Streams, Postgres and Redis, while also using SQS and REST for both asynchronous and immediate service-communication. We make use of technologies like ElasticSearch to perfectly match talents to the right job.

We empower our teams to experiment with new technologies by using our Technology Radar, in order to give great user experience for our customers. The insights we gain from our users flow back into our product development through A/B testing and constant feedback.


  • Flexible working hours
  • 28 paid vacation days
  • Relocation support and visa sponsorship
  • Diverse and inclusive workplace
  • Free catering once a week
  • Yearly personal conference budget
  • Free language courses
  • Free access to 6 education and well-being apps via Everphone
  • Great equipment
  • Free drinks & fruits
  • Discounts for the in-house gym
  • Collaboration on choice of technology
  • Collectives & meetups to learn and improve
  • A dog-friendly modern office in the center of Berlin
  • We'll help you relocate!

If this sounds good, then we’d love to hear from you

Please send us your CV and outline briefly why this position is of interest to you, what you will add to the team and what you're most passionate about.


Groovy java Docker DevOps REST CI/CD AWS react node.js Java Selenium Node.js React Kubernetes Rest English selenium Redux JUnit Terraform SpringBoot redux Istio


Other Development
Type d'emploi
Type de contrat
Expérience en années
5 - 15  Années
Niveau d'anglais
Avancé C1-C2
Salaire Net
7 500 EUR