Job
You will develop a scalable real-time platform for fraud detection and identity verification, modernize existing systems, and ensure efficient ML pipelines in a cross-functional team environment.
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Job technologies
Your role in the team
- You'll join Trust & Safety, working with Backend and Data Engineers, ML specialists, Product Managers and Engineering Managers, and partnering closely with Legal, Compliance and our operational moderation teams.
- Our next chapter is about a scalable, real-time Trust-as-a-Service platform and ML-ready infrastructure—and this role will be central to making that happen.
- Be the primary technical authority for Trust & Safety, owning the architectural roadmap across fraud detection, content quality and the trust platform.
- Design and build a scalable, real-time platform for fraud detection, content quality, identity verification, and risk scoring that other AVIV product teams can use.
- Build the data collection pipelines, training and evaluation workflows, and deployment infrastructure that make our models scalable, reliable and cloud-ready.
- Design event-driven, high-throughput streaming and stateful scoring systems that process signals in real time without degrading the user experience.
- Lead the modernization and deprecation of legacy Trust & Safety systems, with safe migration paths and no loss of reliability.
- Mentor senior engineers, raise engineering standards, and influence technical decisions across multiple teams.
Our expectations of you
Qualifications
- Strong machine learning knowledge - you understand how models are trained, evaluated and deployed, and can build the pipelines and infrastructure that run them in production.
- Staff-level architecture skills: you have led large-scale legacy modernization, influenced multiple teams without direct authority, and mentored senior engineers.
Experience
- Significant backend engineering experience (typically 7+ years), ideally in Python, with deep expertise in distributed, high-scale systems.
- Strong hands-on AWS experience (Lambda, Kinesis, Glue, Athena, ECS) and Infrastructure as Code with Terraform.
- Experience with event-driven and real-time streaming architectures, including stateful systems and real-time scoring.
- Nice to have: experience in fraud, Trust & Safety or risk; security and GDPR knowledge; ID verification or external risk providers; marketplace experience.
What we offer
- Success in this role means creating measurable improvements, not simply introducing new processes.
- We expect you to help us reduce fraud through real-time risk scoring.
- Move Trust & Safety workloads onto the new platform and retire legacy systems.
- Shorten the path from model training to production deployment.
- Keep fraud checks within the latency budget, with no incidents caused by them.
- Give Product and Operations reliable visibility into core risk-scoring and platform metrics.
- The exact measures will be agreed based on the priorities and baseline when you join.
Benefits
Health, fitness & fun
Topics you will work on
Job locations
About your employer
The AVIV Group, based in Berlin, is one of the largest digital real estate tech groups in the world. It provides a variety of digital property platforms and services that facilitate the buying, selling, renting, and valuation of real estate in Europe. Supported by global investors, the company unites well-known brands under a European platform network.
- Established Company
- Onsite, Hybrid
- Construction, Real Estate, Building Services
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