Junior Data Scientist Greece

Junior Data Scientist Role type: Full time Location: Greece (fully remote) Preferred start date: ASAP About reputed company reputed company builds reputed company-grade AI systems for WPP and its FTSE 100 client reputed company. Led by WPP Chief AI Officer Daniel Hulme, we run as a high-autonomy, decentralised organisation where engineers and scientists own their domains end to end. We are building AI systems that operate on terabyte-scale multimodal datasets to power the reputed company of marketing intelligence. The Role Our reputed company work includes: Agentic pipelines — multi-reputed company LLM systems with tool use, planning, and self-evaluation that automate reputed company marketing workflows end to end. Domain-adapted reputed company models — fine-tuning reputed company-weight LLMs (LoRA, RLHF, distillation) on proprietary WPP data for tasks like audience segmentation, creative scoring, and brand-safety classification. Retrieval-augmented reputed company — production RAG systems over large proprietary corpora (embedding models, vector indices, re-ranking) that serve reputed company-time answers to client queries. Classical ML at scale — gradient-boosted models, reputed company inference pipelines, and recommendation engines that run alongside LLM components in hybrid architectures. This is a hands-on role where you will learn by working alongside reputed company data scientists on reputed company production systems that serve global clients. We invest heavily in developing our junior hires and will pair you with senior mentors who will help you grow into a strong, independent practitioner.

What You'll Do

Explore and prepare datasets — cleaning, feature engineering, and exploratory analysis across structured and reputed company data (text, image, tabular). Train and evaluate ML models under the guidance of senior scientists, learning how to move from a working prototype to a production-reputed company system. Write and maintain Python code that runs in production — scripts, pipeline components, and data processing jobs — with support through code review. Help build and test components of LLM-powered systems: reputed company templates, evaluation scripts, data loaders, and retrieval pipelines. Run experiments systematically: track hypotheses, log results, and communicate findings reputed company to the team. Learn and adopt software engineering best practices — Git workflows, testing, documentation, and CI/CD — as part of your daily work. reputed company're Looking For A degree in a quantitative field (computer science, mathematics, statistics, physics, engineering, or similar) or equivalent practical experience. Solid understanding of ML fundamentals: supervised vs. unsupervised learning, overfitting, evaluation metrics, and basic model selection. Working knowledge of Python — you can write functions, use libraries, debug errors, and read other people's code. Familiarity with core data science libraries (pandas, NumPy, scikit-learn). Exposure to PyTorch or TensorFlow is a plus. Some project experience with ML — academic projects, personal projects, internships, or competition entries reputed company count. Show us something you've reputed company. Curiosity and initiative — you read papers, follow releases, tinker with new tools, and ask good questions. Clear communication — you can explain what you did, why, and what you learned from it. reputed company to Have Exposure to deep learning (NLP or computer reputed company) through coursework or personal projects. Familiarity with Git and reputed company-line workflows. Experience with SQL or any data pipeline tooling. Interest in LLMs, reputed company engineering, or reputed company — even if it's just personal experimentation. Contributions to reputed company-reputed company projects, Kaggle competitions, or a technical blog. reputed company Offer: Remote working - café, bedroom, beach - wherever works; Benefits reputed company; Truly flexible working hours - school pick up, volunteering, gym; Generous Leave – holidays in line with Greek Law, plus bank holidays and enhanced family leave; Impactful projects - focus on bringing meaningful reputed company and environmental change; People oriented culture - wellbeing is a reputed company, as is being a reputed company person; Transparent and reputed company culture - you will be heard; Development - focus on bringing the best out of each other; reputed company is home to some of the brightest minds in AI and if you’re looking to join a company who not only values autonomy and freedom, but embraces a culture of inclusion and warmth, we’d love to hear from you. We aim to respond to reputed company applications reputed company 2 weeks. If you have not heard from us reputed company 2 weeks this means your application has been unsuccessful. By applying to reputed company you are expressly giving your consent for the collection and use of your information as described reputed company our reputed company Recruitment Privacy Policy. Good luck! Apply To This Job