Valtech · Sofia, Bulgaria, BG · 11 days ago
Why Valtech? We’re the experience innovation company - a trusted partner to the world’s most recognized brands. To our people we offer growth opportunities, a values-driven culture, international careers and the chance to shape the future of experience.
The opportunity
At Valtech, you’ll find an environment designed for continuous learning, meaningful impact, and professional growth. Whether you're pioneering new digital solutions, challenging conventional thinking or building the next generation of customer experiences, your work will help transform industries.
We are looking for an experienced Senior Data Scientist to drive advanced analytics, causal reasoning, and AI-powered decision intelligence across multiple use cases within our AI portfolio. This role goes beyond traditional modeling and focuses on building production-grade systems that combine predictive, causal, and generative AI capabilities to directly influence business outcomes.
You will work at the intersection of data science, machine learning, and GenAI, turning complex data into actionable insights, automated decisions, and intelligent workflows across domains such as marketing, operations, forecasting, and optimization.
This is not a purely retrospective analytics role. You will design and deploy systems that integrate experimentation, observational data, machine learning, and generative AI into real-time or near-real-time decision-making pipelines.
You will collaborate closely with data engineers, ML engineers, analysts, and platform teams, contributing to shared modeling standards and cross-functional AI architecture.
Role responsibilities
Advanced Analytics & Machine Learning
Develop and deploy machine learning models across use cases (forecasting, optimization, recommendation systems)
Apply statistical, predictive, and prescriptive modeling techniques to solve business problems
Build reusable modeling frameworks that can scale across multiple domains
Causal Inference & Decision Intelligence
Design and implement causal inference methods (e.g., uplift modeling, experiments, quasi-experimental methods)
Translate observational and experimental data into actionable business insights
Embed causal reasoning into decision systems that guide actions (e.g., optimization, prioritization, trade-offs)
Generative AI & Intelligent Systems
Integrate GenAI capabilities (e.g., LLMs, RAG pipelines, agent-based systems) into data science workflows
Contribute to the development of intelligent agents and AI-assisted decision-making systems
Combine structured data models with unstructured data and GenAI outputs
Forecasting & Optimization
Build forecasting models (time-series, probabilistic, causal) to support planning and operations
Develop optimization approaches for resource allocation, scheduling, or campaign performance
Ensure models are explainable and actionable in business contexts
Production & Platform Integration
Build and maintain production-grade data science solutions
Collaborate with engineering teams to integrate models into scalable APIs and platforms
Ensure robustness, monitoring, and lifecycle management of deployed models
Azure (preferred), AWS, or GCP
Experience working with modern data and AI platforms (e.g., Azure ML / Azure AI, Databricks, or similar ecosystems)
Domain & Data Experience
Experience working with complex, multi-source datasets (e.g., transactional, behavioral, operational data)
Ability to translate business problems into analytical frameworks
Experience with GenAI frameworks (e.g., LangChain, LangGraph, RAG architectures, agent frameworks)
Familiarity with data engineering tools (e.g., Spark, Airflow, dbt)
Experience with platforms such as Snowflake, Fabric, or BigQuery
Exposure to advanced time-series methods and probabilistic forecasting
Experience working in Agile, product-led, or consulting environments
Commitment to reaching all kinds of people
We design experiences that work for all kinds of people - and that starts with our own teams. At Valtech, we’re intentional about building an inclusive culture where everyone feels supported to grow, thrive and achieve their goals. No matter your background, you belong here. Explore our Diversity & Inclusion site to see how we’re creating a more equitable Valtech for all.
The benefits
Flexibility, with hybrid work options and 25 vacation days for a healthy work-life balance.
Co-subsidized transportation & Multisport cards.
Premium health insurance for fast and easy access to top healthcare services.
Training policy for technical and other skills-related events, courses and certifications.
Personal career development roadmap guided by performance evaluations.
Self-care program offering psychological consultations & discussions for you and the team.
Cozy office space designed for comfort and productivity.
Exciting team events and company gatherings.
Your application process
Once you apply, our Talent Acquisition team will review your application. Your CV should cover key information on relevant experiences and expertise. We do not require information such as age, gender, marital status, or a headshot in your application. We review all candidates based on skills, experience, and potential.
⚠️ Beware of recruitment fraud!
We are committed to inclusion and accessibility. If you need reasonable accommodations during the interview process, please either indicate it in your application or let your Talent Partner know.
Valtech is the experience innovation company that exists to unlock a better way to experience the world. By blending crafts, categories, and cultures, we help brands unlock new value in an increasingly digital world.
At the intersection of data, AI, creativity, and technology, we drive transformation for leading organizations, including L’Oréal, Mars, Audi, P&G, Volkswagen Dolby, and more.
At Valtech, we don’t just talk about transformation. We make it happen. Our people are the heart of our success, and we foster a workplace where everyone has the support to thrive, grow and innovate.
Are you ready to create what’s next? Join us.
Headquarters
Sofia, Bulgaria
Work Location
hybrid
Job Category
Data Science / AI / Machine Learning
Application Deadline
Not specified
Job Type
Full Time
Experience Level
senior-level
Application Method
Apply via Website
Salary
Not specified
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