UpSkill is a recruitment agency ready to go the extra mile to help candidates find the best possible job opportunity. Our team of experts is well-versed and experienced in consulting and providing long-term HR support.

We believe that being friendly is the best policy, and that’s why we are eager to help you through the whole lifecycle of recruitment. Our team comes with 15 years of recruitment experience behind its back. At any given moment, we can offer multiple opportunities from different companies in need of a wide variety of talent.

If you are interested in starting a new job, we will present you with multiple opportunities, will be there to answer all your questions, help you prepare for interviews and tests, provide essential feedback and even guide and support you through the process of recruitment up to the first day at your new job. We support both large international and local companies in growing their business, providing them with the best talent to help them succeed!

Our client is a global leader in data and analytics, delivering innovative solutions that help organizations make smarter decisions, manage risk, and drive growth. With a well-established technology center in Sofia, the company fosters a collaborative and inclusive work environment, focused on continuous learning, cutting-edge projects, and real-world impact. On their behalf, we are looking for a Senior Data Modeller to join their team in Sofia.

Responsibilities:

• Data extraction and data processing;
• Develop, manage credit risk models, including application, behavioral, and collection scoring models;
• Evaluate the performance of the trained models and presentation of the results to stakeholders;
• Produce ad-hoc analysis on the available datasets or developed models;
• Work on proof-of-concept projects to support client needs;
• Oversee the day to day work of more junior team members;
• Identify opportunities for automation and follow them through internally within the team and towards external stakeholders;

Requirements:

• A degree (BSc level) in a numerical discipline, such as Computer Science, Mathematics, Statistics and econometrics, Physics;
• 3+ years of working knowledge in Python – preferably both Python’s own syntax but also some of its main analytical packages (such as Pandas, Numpy, scikit-learn);
• Understanding of how and when to apply analytical approaches including regression analysis and machine learning;
• Grasp of probability, statistical inference, optimization algorithms, linear algebra, and calculus;
• Good at spotting problems and quickly proposing solutions;
• Experience with BI Tools such as Tableau and Power BI will be considered as an advantage;
• Fluency in English;

The company offers:

• Career development through structured learning programs and unlimited access to online training resources;
• Friendly and supportive work environment with strong team spirit;
• Competitive benefits package including health and life insurance, food vouchers, monthly flex allowance, internet bill coverage, Multisport card, discounts, and special occasion bonuses;
• Work-life balance: 25 paid vacation days, an extra day off on your birthday, and 3 additional days for social responsibility activities;
• Flexible working hours and home office options.

We welcome the opportunity to learn more about you! Please send your CV in English. Please note that only short-listed candidates will be contacted. License No.2826. We will treat your application with full confidentiality!