About Zenjob We are Zenjob, a Berlin-based fast-growing digital staffing company. We are backed by strong international investors including Acton Capital, Atlantic Labs, AXA Venture Partners, Forestay Capital, and Redalpine Venture Partners. Thousands of students and hundreds of well-known brands in sectors such as e-commerce, logistics, fashion retail, food retail, and hospitality are using our technological staffing solution every day. 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 inclusivity as the core element to shape diverse and therefore powerful teams. Product & 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!  What do our engineers say about Zenjob? "The infinite possibilities for personal and professional development at Zenjob is what keeps me hooked. Coming from my home country directly into a thriving startup full with young and capable people from everywhere in the world was (and still is) a very rewarding experience. With an amazing company culture, values that everyone seek to live by and a product that has a clear and positive impact on the lives of thousands of students, it’s easy to wake up and start working every day." Tiago Dionesto, Engineering Lead "Working at Zenjob has been one of the best professional experiences in my career. There are no barriers between people, you can approach anyone, from your team to other departments to any C level, and they will be happy to talk to you, listen to you, and help you out if you need. You have the freedom to express your ideas, your concerns, give suggestions, and know that you are being heard. Everyone at Zenjob is the embodiment of our values, Hungry, Helpful, Humble and Honest." Tiago Costa, Senior Engineer "Zenjob has given me more development opportunities that has helped me to learn and grow every day. The culture of engineering team is considerably great, where everyone dedicates some time to share knowledge with colleagues helping each other to grow as a professional. Zenjob also has a strong leadership team that helps me in my career development and provides opportunities to work on diverse tech stacks and gives lot of freedom to explore new technologies." Srividhya Sankar, Junior Engineer 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.


Berlin, DE

Android Engineer (f/m/x)

€50,000-€90,000 / YEAR

About the role

As an Android Engineer (f/m/x) at Zenjob you will be working in a cross functional team with Backend and other Mobile Engineers to create an outstanding app experience for our talents. Together with Product, Design and your fellow engineers you will be investigating problems, looking into user feedback, scoping and defining milestones by designing technical solutions and estimating what needs to be done.

How you will contribute

  • Work with agile methodologies and be in close collaboration with designers and product owners to improve the UI and UX
  • Write well readable and testable Kotlin code
  • Write UI and unit tests to ensure the quality of our code
  • Improve and support continuous integration processes and automation
  • Support our quarterly planning by reviewing and estimating upcoming initiatives and challenge their impact
  • Contribute to a knowledge-sharing, open and collaborative work environment

Who you are

  • You have excellent knowledge of Kotlin, and a good understanding of design patterns and software architectures like MVC, MVVM, MVP
  • You write testable code and you are familiar with writing unit and UI tests
  • You are a strong team player who encourages coaching, pair programming, collaboration and knowledge sharing within the team
  • You have a strong sense of ownership, from planning to delivering & monitoring, in the product you build