Senior Data Scientist

This is a fully remote position, open to applicants in Serbia.

📋 Description

• Oversee the complete lifecycle of ML projects: defining tasks, developing solutions, testing, deploying, and providing ongoing support;

• Collaborate with data engineers to establish datasets and data requirements while evaluating feasibility, risks, and limitations;

• Engage in the design and analysis of A/B tests alongside data analysts, focusing on metrics, data splits, interpreting results, and recommending solutions for implementation;

• Create and train models (both classic ML and deep learning), including approaches for text and image embeddings; perform offline evaluations and error analyses;

• Deploy the model and associated code into production (as a Python service), ensuring support for releases and integrations;

• Take ownership of model quality post-launch: monitoring metrics, addressing drift/degradation, formulating improvement plans, and adhering to support regulations;

⛳️ Requirements

• Minimum of 4+ years of experience as a Data Scientist;

• Proven track record in managing end-to-end ML projects in production, from setup through to support;

• Proficient in deep learning (PyTorch/TensorFlow), with a solid understanding of fine-tuning principles and model inference;

• Experience in Python (production quality): writing readable code, creating tests for critical components, and comprehending model/artifact packaging and integration into services;

• Knowledge of ML monitoring practices: quality metrics, drift detection, alerts, diagnostics, and support guidelines;

• Proficient in SQL, capable of independently assembling datasets (joins, window functions);

• Familiarity with model interpretability and conducting error analyses;

• Experience with experiment tracking tools such as MLflow, W&B, DVC, or similar;

• Understanding of the ML stack, including classic machine learning algorithms, basic ranking approaches (pointwise, pairwise) and their practical applications; experience with time series is a plus;

• Conversational proficiency in English;

🏝️ Benefits

• A fully flexible work schedule—there’s no requirement to start at exactly 9:00 AM; achieving results and making progress is what truly matters;

• Team members are encouraged to choose their preferred work format, whether that be fully remote, in-office, or a hybrid model;

• We foster an ambitious and supportive team culture where passion for our work and mutual appreciation drive our growth;

• The growth and development of each team member is our top priority, thus we provide internal programs for adaptation and training, as well as tailored development in soft skills and leadership abilities;

• We offer partial reimbursement for employees attending external training and conferences;

• Recognizing the importance of English in the tourism industry, we support our employees' language learning endeavors by organizing group and individual lessons and speaking clubs with colleagues worldwide;

• To promote travel, we provide corporate rates on hotels and other travel services;

• We place a high priority on well-being and are dedicated to supporting overall health and work-life balance at ETG. To facilitate this, we offer MyTime Day Off—an additional day off designed to empower our employees to focus on essential matters, whether it’s health, mental recharge, personal issues, or other significant activities.