Senior Machine Learning Engineer (Freelance - Remote EU)

Who are we? Besedo is a tech company delivering Trust & Safety solutions to online marketplaces worldwide. Every year, we review and moderate over 500 million pieces of user-generated content and block more than 40 million fraud attempts – helping online platforms stay safe and trusted for millions of users. Besedo has headquarters in Stockholm (Sweden) and employs over 350 employees in 5 offices in different countries. Implio is our all-in-one SaaS moderation platform that combines state-of-the-art AI (deep learning, NLP, computer vision) with a powerful user interface for human moderation and powerful analytics. The result is an easy-to-use content moderation solution that enables companies to reduce risks, protect their users and build safer online environments. Learn more about Implio in this video, and discover more about Besedo on our website. Job Description We are looking for a senior-level AI/ML professional to lead the productionization, deployment, and continuous optimization of ML systems in mission-critical environments. This role requires strong technical leadership, deep hands-on experience shipping models to production, and the ability to drive reliability, scalability, and cost/performance trade-offs end-to-end. The ideal candidate combines strong ML depth with MLOps and production engineering excellence, and can operate autonomously while influencing architecture and best practices across teams. You’ll join a small, senior ML team building the AI behind Implio, which moderates user-generated content for online platforms at scale. You’ll work across the full lifecycle, from model research to production, and help shape how we build and ship ML. Key Qualifications

• Master’s, PhD, or equivalent experience in Computer Science, Engineering, Data Science (or related), with strong foundations in mathematics, statistics, and ML.
• 6+ years (or equivalent) experience across ML engineering and MLOps/production ML, with a proven track record delivering high-impact systems in production.
• Demonstrated expertise deploying models to production: scalable serving patterns, model packaging, inference optimization, observability, and safe rollout strategies.
• Strong experience with model performance and efficiency optimization: latency/throughput tuning, batching, quantization, ONNX/TensorRT, GPU/CPU optimization, memory and cost tuning.
• Strong proficiency in Python.
• Hands-on experience with ML frameworks such as PyTorch, scikit-learn, and optimization/runtime stacks like ONNX, TensorRT.
• Strong grasp of CI/CD for ML (e.g., GitLab CI), containerization (Docker), and reproducible workflows.
• Experience with monitoring and reliability: metrics/logging/tracing, model/data drift, alerting, SLOs, incident response practices.
• Plus (nice to have): Kubernetes, AWS, FastAPI (and/or similar Python serving frameworks), SageMaker, service meshes, feature stores, model registries.

Key Responsibilities

• Handle the production lifecycle of ML systems: training, packaging, deployment, monitoring and controlled rollouts.
• Design, build, and continuously improve training and retraining pipelines (data ingestion, labeling/QA loops, feature generation, experiment tracking, reproducibility).
• Build and improve high-performance inference services and deployment patterns.
• Drive inference optimization (ONNX/TensorRT, quantization, batching, GPU/CPU tuning) with measurable latency/cost improvements.
• Partner with DevOps/SRE to ensure operational excellence: scaling, reliability, incident readiness, observability, and alerting.
• Own model versioning, CI/CD, and release workflows ensuring reproducibility and safe delivery to production.
• Strengthen data & model monitoring (performance, drift, quality) and implement feedback loops for continuous improvement.
• Communicate results and trade-offs to stakeholders, turning technical outcomes into business value.
• Ensure model quality through rigorous evaluation and production-grade validation aligned with evolving data and business needs.

About this position This role is 100% remote, so you can work from anywhere in the EU and set up your days in a way that works best for you. You will work with a team of talented Machine Learning Engineer DevOps and Developer who are passionate about their work and like to have fun in the process. We welcome applicants of all backgrounds. What it’s like working with us? At Besedo, we all come from different cultures and backgrounds, but we share a common set of values:

• We like to get things done ✔️
• We support each other to reach our goals and grow as professionals🤝
• We love to learn, share and have fun together 🎉