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AI/ML Specialist

София,

We are seeking an AI/ML Engineer to join our Data and AI department.

The ideal candidate will have proven experience in AI/ML engineering, strong programming skills in Python, deep knowledge of LLM fine-tuning and evaluation techniques, and a strong understanding of MLOps and model deployment practices.  

What's great in the job?

  • Competitive remuneration and bonus scheme linked to individual performance and company results
  • Standard working hours (Monday-Friday) and home office option
  • 25+ days annual paid leave
  • Work flexibility and remote work
  • Food vouchers
  • MultiSport card
  • Employee Assistance Program
  • Working place in a class A building situated a few steps form a subway line and public transport
  • Opportunities for personal and professional growth
  • Additional health insurance (outpatient & hospital medical care, dental care, coverage of dioptric glasses and more)
  • A detailed company training on highest standards
  • A chance to work in friendly and supportive culture
  • Tremendous growth opportunities in fast moving international team

Responsibilities

  • Develop and implement AI-driven solutions 
  • Design, fine-tune, and evaluate large language models (LLMs) for various business applications 
  • Work with large datasets to extract insights and improve decision-making 
  • Build and manage MLOps pipelines for model lifecycle management, versioning, CI/CD, and automated retraining 
  • Maintain and monitor trained modelsfor performance and reliability. 
  • Design and develop AI-powered agents that automate internal workflows, integrate seamlessly with enterprise systems, and enhance operational efficiency 
  • Leverage open-source LLM frameworks (such as Unsloth, PyTorch, AnythingLLM, n8n and/or others) to design, adapt, and develop AI-driven solutions 
  • Maintain high standards in responsible AI, bias detection, fairness, and explainability 
  • Collaborate with software engineers, business analysist, and product teams to design scalable AI solutionsStay up to date with the latest advancements in AI/ML technologies 
  • Share AI knowledge and learning resources across teams to build company-wide AI expertise 
  • Create engaging learning resources (e.g. guides, tutorials, presentations) to support internal AI knowledge sharing 

Requirements

  • Proven experience in AI/ML engineering. 4+ years in machine learning engineering, and 2+ years with focus on LLM and Gen AI 
  • Solid understanding of core machine learning paradigms such as supervised, unsupervised, and reinforcement learning, along with algorithmic approaches (e.g., decision trees, clustering, Q-learning, etc.) 
  • Strong programming skills in Python  
  • Deep knowledge of LLM fine-tuning and evaluation techniques 
  • Strong understanding of ML Ops and model deployment practices 
  • Experience with Azure AI/ML Services and frameworks such as Unsloth, AnythingLLM, LangChain , etc 
  • Proven track record of deploying ML models to production 
  • Familiarity with RAG architectures, vector databases and embedding models 
  • Proficiency in Prompt Engineering 
  • Experience with distributed computing and large-scale data processing 
  • Experience with cloud platforms Azure, AWS, etc. 

Must Have

  • Understanding of ML system security and threat models 
  • Knowledge of AI ethics, bias mitigation, and responsible AI practices is a plus 
  • Strong analytical thinking and creative problem-solving skills 
  • Good communication skills for collaborating with cross-functional teams and stakeholders 
  • Excellent problem-solving skills and a passion for AI innovation.