Data Scientist (Junior/Mid)

Data Scientist (Junior/Mid) Fourth is the world’s largest and fastest-growing global leader of end-to-end restaurant and hospitality management technology solutions. We pride ourselves on delivering a world-class SaaS experience for our clients by building long term partnerships starting from the first phone call. We know our recipe for success at Fourth is our amazing team... and that starts with hiring the right people! Interested in joining our smart, fun, and talented team? Position Overview The Data Scientist will be an integral part of the Data Science Team at Fourth. The role fits into our broader team together with ML Engineers, Data Engineers and Data Analysts. The focus will be to build data-powered solutions forming part of our product. Such solutions are typically linked to demand prediction, labor prediction, inventory and intra-day planning. The main purpose of the Data Scientist is to define and execute data science experiments, to create PoC and to move them to production with support from ML and Data Engineers. Most of the work is done in Python (with various packages and extensions: pandas, sklearn, TensorFlow, PyTorch, scikit-learn etc.). Your daily job will include: Exploratory data analysis Feature engineering Time series forecasting Model development, deployment and monitoring A/B testing Using strong business acumen, as well as the ability to communicate findings and mine vast amounts of data for useful insights Using these insights to influence how an organisation approaches business challenges Applying a combined knowledge of computer science, modelling, statistics, analytics and maths to solve problems Sifting and analysing data from multiple angles, looking for trends that highlight problems or opportunities Communicating important information and insights to business and IT leaders Making recommendations to adapt existing business strategies Experience and competencies needed: Strong statistical and machine learning knowledge Use AI tools for coding and strong coding skills (clean and commented code, version control, documentation) Ability to develop high-performing end-to-end machine learning models (data processing, feature engineering, model training, scoring, monitoring) Experience with feature engineering using Python, SQL or similar tools Experience with machine learning using Python, Spark, PyTorch, scikit-learn or similar languages and libraries Abilities to create powerful visualisations which to help communication of data science insights and results to business stakeholders Nice to have (not required): Knowledge of or hands-on experience with Large Language Models (LLMs) and prompt engineering Exposure to agentic AI concepts and frameworks (e.g. LangChain, LlamaIndex, AutoGen or similar) Experience building or working with AI agents and multi-step reasoning pipelines Juniors are welcome to apply - we value curiosity, a strong learning mindset and solid fundamentals over years of experience. Benefits and Culture: · 25+ days off, as well as birthday day off and 4 charity days off per year · Flexible start and end of the working day and hybrid working mode, including a combination remote and in the office · Team-centric atmosphere · Encouraging healthy lifestyle and work-life balance including supplemental health insurance · New parents bonus scheme *Only short-listed candidates will be contacted . All personal data provided by you in your application will be processed by Fourth Bulgaria EOOD, UIC 203576042, solely for our recruitment purposes. If you do not provide your personal data, Fourth Bulgaria EOOD will not be able to review your application. Fourth Bulgaria will transfer your personal data only within its corporate group and to companies which provide recruitment support to Fourth Bulgaria. Fourth Bulgaria will ensure you can exercise your rights to access, correction and erasure of your personal data. More information on Fourth Bulgaria’s privacy policy for job candidates is available here and by applying you confirm that you have read it. Our Story In July 2019 Fourth joined forces with HotSchedules to become the global leader in end-to-end restaurant and hospitality management technology solutions. Together, the merged company now represents the world’s largest and only provider of end-to-end restaurant and hospitality management solutions for customers across the globe and of all sizes—from a single location or franchisee restaurant to a global restaurant or hotel chain. The combined company’s complete software-as-service (SaaS) solution suite including scheduling, time & attendance, applicant tracking, training, inventory management / procurement, HR / benefits and payroll services now serves customers in 120,000 locations worldwide and is supported by a dedicated, unified team across offices in the US, UK, Bulgaria, China, Australia, and UAE. Fourth is an Equal Opportunity Employer All qualified applicants will receive consideration without discrimination because of sex, gender identity, gender expression, sexual orientation, marital status, race, color, age, national origin, military status, religion, or disability or any other legally protected status. Department Software Engineering Locations Sofia Remote status Hybrid Employment type Full-time Sofia