Kafka Reliability Engineer

About Wolt

At Wolt, we create technology that brings joy, simplicity and earnings to the neighborhoods of the world. In 2014 we started with delivery of restaurant food. Now we’re building the delivery of (almost) everything and you’ll find us in over 500 cities in 30 countries around the world. In 2022 we joined forces with DoorDash and together we keep on dreaming big and expanding across the globe.

Working at Wolt isn’t always easy, but it’s definitely exciting. Here you’ll learn more, build more, and ship more than in most other companies. You’ll be challenged a lot, but also have a lot of fun on the way. So, if you’re a self-starter with drive and entrepreneurial spirit, this could be the ride of your life.

In this role, you will be part of Wolt’s Platform department (Core Group), ensuring Reliability best practices for the datastores used across Wolt. The Database Reliability Team is responsible for maintaining smooth datastore operations for 45M+ registered users and 170 000+ active venues. Our primary focus is on MongoDB, PostgreSQL, and Kafka, along with other storage technologies.

As part of the Database Reliability Team you will be responsible for:

• Defining and implementing guardrails to ensure best practices are followed across Wolt’s engineering organization
• Supporting teams in optimizing performance and resolving the most complex datastores-related issues
• Acting as an evangelist for datastores optimization and best practices within the organization
• Proactively analyzing the largest datastores, assisting teams with capacity planning, and proposing improvements for performance and availability
• Handling "keep the lights on" tasks and automating repetitive processes to minimize operational toil
• Ensuring security best practices working in collaboration with Security and Compliance teams
• Driving the adoption of monitoring tools, dashboards, and alerts to improve observability and incident response
  
  

While team members may specialize in one of technologies (e.g., some focusing on RDS, others on Kafka), we encourage learning and support engineers in expanding their expertise across different data storage domains.

Our Ways Of Working

The Database Reliability Team follows an Agile workflow tailored to our needs:

• Quarterly planning: We set priorities together, aligning with company OKRs and our vision for reliability and essential maintenance tasks
• Minimal meetings: To keep engineers focused, we have bi-weekly planning & retrospectives, twice-weekly standups, and ad-hoc project discussions as needed
  
  

You’ll be a great fit for this role if you have the following skills and experience:

• Hands-on experience with Kafka and Kafka Connect
• Understanding of Kafka performance tuning, metrics, producer and consumer settings
• Knowledge of SRE best practices
• Experience working with one of the Cloud providers: AWS / Azure / GCP
• Strong communication and collaboration skills with the ability to write clear documentation for other engineers
• Experience with modern software development tools and methodologies, including IaC, monitoring, and observability tools
• Experience collaborating with SaaS vendors is a plus
• Knowledge of one of the JVM languages Java / Kotlin / Scala would be a plus
  
  

You don’t need to tick every box, but if you see yourself in many of these points, we’d love to hear from you!

At Wolt, we’re committed to building an environment where engineers can make an impact while enjoying meaningful challenges. As a member of the Databases Reliability Team you’ll enjoy:

• Working on solutions that support millions of users
• Solving complex problems in performance, relailbilty and automation
• A collaborative and inclusive culture that supports your professional and personal well-being
  
  

📍This open role can be based in all of our tech hubs in Helsinki or Berlin. This can vary depending on the exact team and their main location. You can choose whether you want to work from home, from the office or hybrid.

The position will be filled as soon as we find the right person, so make sure to apply as soon as you realize you really, really want to join us!

The compensation will be a negotiable combination of monthly pay and DoorDash RSUs. The latter makes it exceptionally easy to be excited about our company growing and doing well, as you’ll own a piece of the pie.

Our Commitment to Diversity and Inclusion

We’re committed to growing and empowering a more inclusive community within our company, industry, and cities. That’s why we hire and cultivate diverse teams of people from all backgrounds, experiences, and perspectives. We believe that true innovation happens when everyone has room at the table and the tools, resources, and opportunity to excel.