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Main tasks and responsibilities: Working with a technical stack consisting of Python, Docker, SageMaker, Airflow and Databricks Building and improving fraud prediction models using different predictive approaches Exploring techniques that can improve the way we manage payments, including Causal and Reinforcement Learning Handling the entire lifecycle from project conceptualization and notebook prototyping to productizing and maintaining a machine learning based solution or other automation that might be serving hundreds of millions of users in production Leveraging our in-house data and model platform that allows you to launch new projects in a matter of days Deploying and A/B testing solutions for millions of users, enabling fast feedback and measurable added value to customers About you: Exceptional knowledge of machine learning algorithms, statistical inference, and autonomous decision-making systems Enthusiasm to collaborate with different roles in product, analytics and engineering to identify problems, explore trends and untap growth opportunities Passion for continuous learning and a collaborative mindset, valuing open technical discussions and peer-to-peer knowledge sharing Mastery in Python and SQL Previous experience in fraud detection, payment optimization or related financial services is a plus Strong academic background in a quantitative field Experience is great, but what we really look for is drive, intelligence, and integrity. So even if you don’t tick every box, please consider applying! Apply now and join us to make cities for people, not cars. First name Last name Email Phone Number + 372 Upload your CV Drop files here to upload or choose from your device Browse files Supported formats: .pdf, .docx (max. file size 5MB) Will you now or in the future need sponsorship for employment visa status to start or keep working with Bolt? Select an option Do you need special assistance due to disability? We are happy to provide reasonable accommodations. (optional) By responding, you consent to Bolt processing your disability data in accordance with our Privacy Notice . Where did you hear about Bolt? Select an option By ticking this box, I confirm that I have read and understand the content of the Privacy Notice and acknowledge that my personal data will be processed as part of this application. Continue to survey Submit application Fill in our Demographic Survey Please help Bolt’s diversity and inclusion efforts by completing our voluntary demographic survey. Which gender identity do you most closely identify with? (optional) Female Male Non-binary Other Prefer not to disclose What is your age? (optional) Under 21 21-25 26-34 35-44 45-54 55-64 65 or over Prefer not to disclose Are you a parent, caretaker, or legal guardian of anyone? (optional) Yes No Prefer not to disclose Do you live with any disability? (optional) Yes No Prefer not to disclose In which country do you currently live? (optional) Estonia Romania Poland Germany Other, please specify (country) Prefer not to disclose Question 1 / 5 Previous Next Submit application Your answers are anonymous and not linked to your application. By responding, you consent to Bolt processing your demographic data in accordance with our Privacy Notice . AI Disclaimer: We use Greenhouse's AI-powered Talent Matching tool to compare your application against our job requirements. Learn More Become part of our Engineering team *Some perks may differ depending on your location. Why you’ll love it here: Our engineers are at the forefront of innovation within some of the largest industries in the world. Are you up for the challenge? View team Play a direct role in shaping the future of mobility. Impact millions of customers and partners in 600+ cities across 50+ countries. Work in fast-moving autonomous teams with some of the smartest people in the world. Accelerate your professional growth with unique career opportunities. Get a rewarding salary and stock option package that lets you focus on doing your best work. Enjoy the flexibility of working in a hybrid mode with a minimum of 3 days in the office each week to foster strong connections and teamwork. Take care of your physical and mental health with our wellness perks. About us With over 200 million customers in 50+ countries, Bolt is one of the fastest-growing tech companies in Europe and Africa. And it's all thanks to our people. Learn more We believe in creating an inclusive environment where everyone is welcome, regardless of race, colour, religion, gender identity, sexual orientation, age, or disability. Our ultimate goal is to make cities for people, not cars, and we need your help to achieve this mission! Quick links View all 240+ open roles Products Rides Scooters E-Bikes Bolt Drive Bolt Food Bolt Market Bolt Business Bolt Plus Earn Company Support Safety Locations City solutions Get Bolt Get Bolt Food Suppliers Terms and Conditions Privacy Cookies Security Community Guidelines © 2026 Bolt Technology OÜ
Location
Tallinn, Estonia