Principal Data Engineer


Depop is the most fun way to buy and sell straight from your pocket. It’s social, it’s unique, and it’s growing. We have an international team of 85 with our HQ in London, and teams in New York and Milan.

At Depop, we have millions of users, who generate a lot of data. We want to get smarter about how we use and store that data, to ensure consistency on live user-facing services, and to lay the foundations of a self-sustaining data-driven business.

This is a new, hybrid role that will entail some mix of:

  • One part DBA
  • One part distributed systems architect
  • One part software engineer
  • One part data scientist

Key Responsibilities

  • Advise on and influence the design and implementation of databases within a distributed architecture to ensure data consistency and correctness
  • Play a key role in the design, build, and implementation an internal self-service data analytics platform
  • Work with both non and semi-technical analysts in the moderation and growth teams to get access to the data that they need

The Tech Stack

  • Scala, Play, Akka
  • Postgres, RabbitMQ, DynamoDB, Memcached, Redis
  • Redshift, S3
  • Python/Django, MongoDB (mostly legacy)
  • AWS, Kubernetes, Ansible, Terraform, Consul, Vault, Docker


  • Be a competent software developer (ideally fluent in one or more of of Scala, Java, Python)
  • Have experience working with the JVM
  • Experience building and running modern REST-based, service-oriented, distributed architectures. Ideally at scale
  • BS in CS, a related technical field, or equivalent practical experience
  • Be an authoritative expert in at least one major RDBMS (ideally Postgres)


  • Experience with designing and implementing sharded relational databases
  • Awareness, or experience with Data Protection/GDPR requirements
  • Awareness, or experience with ML concepts (e.g regression, classification, NLP)
  • Any Experience with Tensorflow, Spark, Hive, or Presto

About You

  • You're smart and you like to get things done
  • You enjoy what you do and you're always learning new things
  • You have strong problem solving abilities and write well formed, idiomatic code
  • You play well with others: as well as fellow engineers, you can communicate technical details in a clear manner to all areas of the business
  • You take pride in your work but are also pragmatic: you feel that great is often the enemy of the good, but also that mediocrity is unacceptable
  • You have [good] opinions on service interfaces, contracts and domains
  • ACID, LRW and CAP are meaningful to you in more than one sense
  • You can spot race conditions at 50 paces and know why that design Just Wont Work


  • Great offices near Old Street
  • Flexible, relaxed atmosphere, working with a well-funded, amazing and very friendly team
  • Competitive salary with share options
  • 25 days paid holidays & option to buy/sell more
  • Apple staff discount
  • Fully stocked snack cupboard, drinks fridge and fresh fruit.
  • Wonderful Wednesdays & Friday drinks
  • Staff parties & events
  • Depop Pension
  • Ride to work / Childcare/ Eyecare vouchers on request
  • Special stuff on birthdays & life events

Equality statement

We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, colour, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

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