Yubo

Infrastructure

SeniorMLEngineer

€75–110k ~AI est. Paris, France FULL TIME Remote Friendly
Market Sentiment
HIGH DEMAND

Neural analysis suggests this role is
optimal for Senior candidates.

The Brief

“Senior ML Engineer at Yubo. Skills: Machine Learning, MLOps, Platform Engineering. Deliver end-to-end ML use cases. Design ML models”

What You'll Achieve.

Deliver end-to-end ML use case; Audit and improve lifecycle management; Refactor and retrain legacy safety model; Build reusable ML components; Improve monitoring and observability; Contribute to ML platform evolution; Move critical ML systems toward reliable operation

Industry & Context.

Infrastructure
Problems you'll solve

Structure complex problems

Eligibility Requirements

2 days at office per month

What They're Looking For.

Must Have

5+ years of experience in ML / Data, Experience with large-scale datasets, Expertise in modern ML frameworks, Highly proficient in Python, Knowledge of neural networks, Practical experience with LLM-based systems, Understand ML systems end-to-end, Experience in production ML systems

Nice to Have

TensorFlow or PyTorch or JAX expertise, Product sense, Pragmatic and impact-driven, Able to explain complex ML topics clearly, Operate well under ambiguity, Able to drive technical decisions, Influence stakeholders through expertise and collaboration

What You'll Do.

Deliver end-to-end ML use cases

Balance speed with robustness

Drive improvements across ML lifecycle

Establish monitoring standards

Ensure alignment with product objectives

Ensure alignment with safety objectives

Improve reliability of production ML systems

Improve observability of production ML systems

Contribute to ML platform evolution

Establish scalable ML engineering practices

Improve self-service ML capabilities

Take ownership of legacy models

Realign legacy models

Improve legacy models

Retrain legacy models

Integrate legacy models

Contribute to best practices LLM usage

Explore advanced ML approaches

Implement advanced ML approaches

Partner with Data Engineering

Partner with Backend Platform

Partner with Product teams

Act as bridge between ML

Act as bridge between platform

Act as bridge between business

Provide technical leadership

How You'll Work.

Team & Collaboration

Cross-functional collaboration; Partner with teams; Technical leadership; Share knowledge; Raise maturity

Communication Scope

Explain complex topics

Full Job Description

WHO WE ARE Yubo is the Social Discovery app to make new friends and hang out online. By eliminating likes and follows, we empower our users to create genuine connections and show up as their true selves. We've pioneered a new way for Gen Z to socialize online, and with millions of active users, our goal is to redefine how we connect today and tomorrow. Our team is international, multicultural and deeply committed to its mission. As the leading platform to socialize online, we have a special responsibility to build a safe digital space for our community. Safety is embedded in our DNA, and our proactive approach focuses on user protection, support, and education. We also work closely with the broader technology industry to share our knowledge and NGOs create industry-leading child protection standards. Join us in this exciting journey and help us shape the future of social interactions! ABOUT THIS ROLE As Yubo continues to scale, Machine Learning is becoming a core production layer, powering critical systems across safety, recommendations, and product optimization. What makes this role unique is both the scale and diversity of our data, and the level of maturity we are aiming to reach. We process massive volumes of images, text, and real-time user interactions, across millions of users worldwide, creating a wide range of high-impact ML challenges, including: - Content moderation (image, text, behavior) - Recommendation systems and user engagement optimization - Behavioral detection and trust & safety models - Emerging use cases such as dynamic pricing and growth optimization At the same time, our current ML stack is still evolving. Legacy models are not fully integrated into pipelines, lifecycle management remains inconsistent, and our approach can sometimes resemble "develop, deploy, and forget." As ML usage expands across the company, this creates increasing complexity and dependency on reliable, well-structured systems. There is still a huge amount of untapped pote

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