Backend Engineer II - AdTech, Serving Squad (all genders)

As a Backend Engineer II at Delivery Hero, you will be tasked with designing and implementing backend services that enhance our AdTech platform. This involves working closely with teams to build scalable advertisement solutions, optimizing existing services for performance, and ensuring system reliability under high loads of requests. Collaboration with other squads in the AdTech tribe will also be essential as we leverage microservices architectures and strive for continuous improvement.

Candidates seeking the Backend Engineer II role at Delivery Hero should have a minimum of 3 years of software development experience, including at least 1 year of expertise in Golang. A solid understanding of microservices architecture, experience with relational and NoSQL databases, and familiarity with tools like Docker and Kubernetes are essential. Strong communication skills and a commitment to code quality also play a significant role in contributing to our collaborative environment.

At Delivery Hero, you can expect a hybrid working model that encourages collaboration in an inspiring office space in Berlin. We prioritize your well-being through various wellness programs and benefits such as health checkups and fitness subsidies. You’ll be part of an inclusive culture that celebrates diversity and fosters your professional growth, making it an exciting environment to thrive in as a Backend Engineer II.

Delivery Hero is committed to the professional development of our Backend Engineers II by offering a €1,000 educational budget for courses and training, as well as mentorship opportunities. We also encourage work-life balance with generous holiday policies. Whether you want to learn new skills or enhance existing ones, we will support your career growth every step of the way.

Backend Engineers II at Delivery Hero often work with technologies such as Golang for backend development, utilize Docker and Kubernetes for containerization and orchestration, and engage with both relational and NoSQL databases to manage and store data efficiently. Familiarity with microservices architectures is key, as our team builds scalable and resilient solutions to support our advertising platform.

When asked about your experience with Golang in an interview, share specific examples of projects where you utilized Golang for backend development. Highlight key challenges you encountered, how you addressed them, and any performance improvements you achieved. Be sure to mention your understanding of Go's concurrency model and how it helped in creating efficient applications.

To answer this question effectively, outline your approach to designing scalable systems, such as using microservices architecture, load balancing, and database optimization techniques. Discuss any specific tools or methodologies you employ for monitoring performance and scaling resources dynamically based on traffic patterns.

In addressing this question, choose a specific example of a difficult bug related to backend services. Detail the steps you took to identify the root cause, the troubleshooting methods you used, and how you implemented a solution. Including the impact of your resolution on the system's performance can further showcase your problem-solving skills.

When discussing your experience with Docker and Kubernetes, share specific instances where you used these tools to containerize applications and orchestrate deployment processes. Explain how these technologies helped enhance your team's development workflows, improved reliability, or simplified scaling efforts. Mention any particular configurations or deployment strategies you have employed.

In your response, emphasize the importance of code quality in backend development. Describe your processes for writing clean, maintainable code and the testing frameworks you use to ensure functionality. Discuss practices such as code reviews and automated testing, providing examples of how they have improved the overall quality of your projects.

This is a great opportunity to showcase your impact as a Backend Engineer II. Choose a project where you took the initiative to enhance an existing application. Explain the specific changes you made, the reasons behind them, and the measurable results achieved, such as improvements in load times or user engagement.

To answer effectively, share the resources you follow, such as tech blogs, podcasts, and online courses. You may also want to mention any community involvement, such as attending meetups or contributing to open-source projects, as these can demonstrate your engagement with ongoing learning in backend development.

When discussing performance troubleshooting, outline your methodology for identifying and diagnosing issues, including monitoring tools or profiling techniques. Discuss a specific case where you applied these strategies and the outcomes, showcasing how methodical analysis and effective adjustments lead to improvements.

Express genuine enthusiasm for both the position and the company. Mention Delivery Hero's commitment to innovation in the AdTech space, its diverse and collaborative culture, and how these align with your professional goals, particularly your desire to work on impactful projects that enhance user experiences.

Here, emphasize the importance of collaboration and open communication in resolving conflicts. Describe how you would approach the situation by seeking to understand the other person's perspective, discussing the merits of different approaches, and working together to arrive at a consensus that serves the project best.