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Staff Engineer - Storage Services, Core Group

Engineering

Berlin, Germany

Full-time

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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.

As part of Wolt’s Platform department (Core Group), you will contribute to the reliability and scalability of our datastores, and work on the future unified storage platform we are building together with DoorDash.

We are looking for an experienced Staff Engineer specializing in storage reliability and building systems at scale to join the Platform department. In this role, you will lead the design and implementation of scalable platform solutions to support our e-commerce business, serving over 42 million monthly active users and 500,000+ merchants. As a Staff Engineer, you will define technical direction, mentor other engineers, and ensure our platform architecture can sustain rapid growth while staying reliable.

What you’ll be doing

Technical Leadership: Provide technical direction and leadership to multiple storage teams, set best practices for data storage. Oversee development and migration to the unified platform with DoorDash, ensuring high availability and data consistency. 

Growth Support: Lead the design and development of a robust, scalable storage architecture that supports our business goals and organic growth. 

Mentor: Mentor and guide engineers at various levels, fostering a culture of continuous learning and improvement. Act as an evangelist for database optimization and best practices within the organization.

Collaborate: Work closely with Wolt and DoorDash teams responsible for foundational systems and services, such as compute and infrastructure, as well as product development teams, to ensure platform initiatives align with business goals and needs.

Documentation: Maintain comprehensive documentation of platform architecture, design decisions, and best practices to facilitate knowledge sharing and onboarding. Participate in writing and reviewing RFCs. 

Security: Support implementation of the security best practices to protect data and maintain the integrity of our platform in alignment with our Security Engineers.

Observability: Improve dashboards and alerts, and drive their adoption. Working together with the Observability team, ensure engineers have the tools and visibility needed to quickly detect, investigate, and resolve issues.

Hands-on: Work directly on implementation when needed, including POCs and debugging complex technical problems.

Our humble expectations

Must haves:

  • 2+ years of proven experience as a Technical Lead (e.g. Staff or Principal Engineer) in large-scale companies. 
  • 8+ years of hands-on experience in software engineering and designing systems at scale.
  • Deep understanding of non-relational databases (Cassandra preferred): best practices, performance optimization, data modeling, migration strategies, partitioning and sharding concepts.
  • Strong understanding of SRE and security best practices.
  • Proficiency in Go programming language.
  • Experience working with one of streaming platforms (Kafka and Kafka Connect preferred).
  • Strong communication and collaboration skills.
  • Proactive, data-driven mindset with the ability to drive changes across the entire organisation.
  • Experience in supporting large-scale development teams across multiple locations.

Nice to haves:

    • Experience working with relational databases (PostgreSQL preferred) and AWS RDS.
    • Knowledge of IaC tools (Terraform preferred) and orchestration tools (Kubernetes preferred).
    • Experience using Python for tasks and processes automation.
    • Familiarity with SOX compliance.

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.

Team

Engineering at Wolt

We build the technologies powering Wolt. Our apps connect millions of customers, hundreds of thousands of courier partners, and tens of thousands of shops and restaurants. We now operate in 30 countries, 500+ cities and we’re growing fast.


We build at scale, are laser-focused on building world-class customer experiences, and do things with heart. Dive with us into the complex problems of building the delivery of (almost) everything.

Square - product week, wolt
Tech blog

What we're working on

On this journey towards delivery of (almost) everything, we’re building a wide suite of products — from the systems powering our own Wolt Market stores, to our support tooling, and even fintech solutions.

Get a sneak peek into what we’re working on through our Wolt Tech blog, Wolt Tech Talks podcast, and more from the link below.

Square - working together 4
How we work

We build beautiful products, the Wolt way

We like to do things well and move fast. Doing that requires less red tape and more trust. 

At Wolt, every product team has the resources, talent, and autonomy they need to deliver the task at hand. This way our teams stay close to their customers. They work how they see best, and in return, they’re responsible for seeking alignment and owning the outcome.

Square - working together, office 10
Our culture

Our culture

At Wolt, 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. All of which comes from working with passionate, caring, down-to-earth and super-smart people.

Square - working together, office, japan 3
Our people

“Wolt is a great environment for screwing up, learning from that, growing, and moving on to do things better. We never blame anyone for mistakes, we just make sure we can learn from them”

- Kimbo, Software Engineer

Kimbo - cover image

Apply now

Basic information

Wolt Recruitment Privacy Statement *

Please review the Wolt Recruitment Privacy Statement and acknowledge.

Do you require any accommodations during the hiring process?

We evaluate candidates solely on their qualifications, skills, and how they align with our business needs. We encourage applications from people of all disability statuses, gender identities, sexual orientations, personal expressions, racial and ethnic backgrounds, religious beliefs, and any other identities or experiences.

To ensure a fair and inclusive hiring process, please focus on your experience and skills in your CV — no need to include your photo, age, or marital status.

We’re committed to providing a delightful candidate experience. If you require any accommodations during the hiring process, please let us know below.

Do you have at least 2 years of experience serving as a Staff or Principal Engineer (or equivalent technical lead) in a company of 500+ engineers? *
Which statement best describes your hands-on experience with NoSQL datastores (e.g. Cassandra)? *
Rate your proficiency in Go (Golang) for building and maintaining large-scale backend services? *

Additional information

Wolt - Self-Identification Survey

To ensure that our hiring practices are fair and inclusive, we’re asking the following voluntary questions of the people who apply to work at Wolt. If you don't feel comfortable answering any question, you can select “I don't want to answer.”

Your responses to these demographic questions are secure and optional. Any voluntary data you provide will not be shared with anyone connected to your recruitment or hiring process. There will be no negative consequences if you don’t want to participate, if you only answer some questions, or if you select “I don’t want to answer” for any question. Any option you choose will in no way affect your opportunity to work at Wolt.

By answering questions below, you give us your consent to process and handle your answers anonymously, and help Wolt understand the diversity of the people it attracts to apply. For additional clarity, our privacy policy below explains how we collect and process your data in accordance with applicable data protection laws.

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More about Wolt

At Wolt, we create technology that brings joy, simplicity, and earnings to the neighborhoods of the world. 

In 2015 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.

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