Fraud Prevention Developer Lead

4 weeks ago


Stockholm, Stockholm, Sweden Blocket Full time

About Us

At Blocket, we're proud to be Sweden's largest and most popular marketplace. Our mission is to enable second-hand trade in Sweden and contribute to a positive environmental impact.

We've recently merged with Schibsted Nordic Marketplaces, bringing together our strengths, knowledge, and resources to create a tighter collaboration at the Nordic level.

If you want to get a feel for our company culture, check us out on Instagram (Blocket) & LinkedIn (Blocket)

The Role

You'll be part of our diverse and highly specialized anti-fraud team, responsible for building tools that underpin fraud prevention in all the largest marketplaces in the Nordics. We offer an inclusive and stimulating work environment where your contribution truly makes a difference.

You'll have interesting challenges at every level, providing opportunities to grow and develop in your role. As we transition to Schibsted Nordic Market Places, you'll have significant influence over the direction of our projects.

We have many exciting tech tracks within the team, including ML/AI, bleeding-edge frontend, and distributed microservice architecture.

Your responsibilities may include:

  • Building the event-driven platform that is the beating heart of our fraud-prevention tools.
  • Leading or collaborating on advancing our cutting-edge ML tech stack.
  • Designing and architecting systems that scale effortlessly and adapt like a chameleon.
  • Elevating software quality using industry best practices.
  • Fueling our teams by sharing innovative ideas to turbocharge our pace.

The Tech Stack

Our tech stack is based on a highly distributed micro-service architecture with decoupled services enabling autonomous decisions about tech choices. In the fraud team, we write services in Java or Kotlin, but also deploy in Go, Python, C#, and Haskell.

To ensure seamless deployment and scalability, we leverage Google Cloud and AWS capabilities, deploying through Docker and Kubernetes. We use Kafka as an asynchronous messaging system.

About You

We're looking for an experienced developer with knowledge of ML and emerging AI tech. You should be able to independently lead development of new features and enjoy discussing code with peers.

You'll like sharing knowledge and continuously learning new things. Your skills may include:

  • Hands-on experience in Kotlin or Java backend development and understanding of the Spring-Boot framework.
  • A keen interest in Machine Learning techniques and other emerging AI technologies.
  • Experience developing distributed systems in a micro-service architecture.
  • Experience with event-driven architectures such as Kafka or Google Pub/Sub.
  • A collaborative attitude, passion for learning new tools and skill sets.

Salary: €120,000 - €150,000 per year



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