Senior ML Engineer — Scale Real-Time Ads

Harnham in Paris is seeking a Principal Machine Learning Engineer to lead and shape ML strategy in a hybrid setting. You’ll balance technical leadership with hands-on model development in large-scale real-time systems across production environments.Join a profitable AI-driven business focused on competitive ML infrastructure, recommender and bidding...

GetVocal AI in Paris is seeking a Senior AI Software Engineer to design and build production-grade, real-time backend systems powering our conversational AI platform. You will own low-latency services, event-driven pipelines, and AI agent orchestration to scale with production traffic.The role blends AI engineering, backend systems, and distributed real-time...

TLDR: We are looking for several ML Engineers to train, post-train, and evaluate the LLMs at the core of our platform. This is hands-on modern model training work: large-scale data pipelines, SFT/RLHF/DPO-style alignment, reward models, distributed multi-GPU training, and evaluation.About usWhite Circle is an AI Safety company building the safety,...

TLDR: We are looking for an ML Infrastructure Engineer to build the systems behind our LLM post-training, RL, evaluation, inference, and agentic development workflows. You will work close to researchers, GPUs, training loops, data control systems, evals, inference stacks, and the infrastructure decisions that directly affect model learning and product...

Who we areYubo 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...

TLDR: Multimodal ML Engineer to train and ship vision, audio, video, and speech models for an AI safety platform that operates at 100M+ API calls/month.About usWhite Circle is an AI Safety company building the safety, reliability, and optimization layer for AI systems. At the core of our platform are policies – simple natural-language rules that define...

As a Senior AI/ML Engineer at vector8, you will design, implement, and deploy AI solutions that bridge the gap between research and production. Your work will focus on integrating and fine‑tuning AI models, optimizing model performance, and ensuring enterprise‑grade reliability, security, and scalability. Hands‑on Engineering Role Develop and optimize...

Minimum qualificationsBachelor’s degree or equivalent practical experience.5 years of experience with software development in one or more programming languages.3 years of experience testing, maintaining, or launching software products, and 1 year of experience with software design and architecture.3 years of experience with one or more of the following:...

Dear applicants, please note that applications without salary expectations and an active LinkedIn profile will not be considered.Location: Paris, Berlin, or London (Hybrid – 3 days/week in office)Employment Type: Full-TimeStart: ASAPEnglish: Fluent We are hiring a Senior Solutions Engineer to partner closely with Account Executives in driving enterprise...