Senior AI/ML Engineer

Who We Are

Recruitment.bg is a boutique IT recruitment company, based in Bulgaria. We aim to work with the top employers in the industry, companies that we thoroughly vet and trust. Our mission is to guide IT professionals toward improved career paths by understanding their skills, crafting employment strategies, and supporting them every step of the way. Placing emphasis on honesty, respect and reliability while delivering exceptional service by ‘going the extra mile’ we build long term relationships with the people and organizations we work with.

About the Client

Fast-growing iGaming product company with a platform used by players in 50+ countries. They build high-scale, real-time systems for online casino and sports betting with modern microservices architecture, cloud-native infrastructure, and active ML implementation for data analysis and responsible gaming.

The Role

Architect, develop, and optimize generative AI infrastructure across the full ML lifecycle—from model development to production deployment.

Key Responsibilities:

Design scalable systems for training and serving LLMs
Develop low-latency inference pipelines and robust APIs
Implement advanced NLP: few-shot learning, prompt engineering, RAG
Fine-tune pre-trained models for specific use cases
Optimize model inference and distributed training architectures

Requirements

Must-Have:

5+ years in ML with focus on NLP and deep learning
Strong Python + PyTorch/TensorFlow + Hugging Face Transformers
Experience with ML ops tools, model optimization, and distributed training
Solid software engineering practices (CI/CD, containerization)

Nice-to-Have:

Transformer architectures & RLHF experience
Cloud platforms (AWS/GCP/Azure) with ML services
Open-source contributions or ML research publications

Tech Stack: Python, PyTorch/TensorFlow, Docker, Kubernetes, AWS/Azure, PostgreSQL, MongoDB, Redis

What’s Offered

Competitive salary + annual performance bonus
Hybrid work (2 days WFH) + flexible hours
25 days paid leave
Premium health insurance + sports card + transport covered
Paid conferences, trainings & continuous learning
Modern office, supportive culture, team events

All applications will be treated as strictly confidential. Only short-listed candidates will be contacted. [ST]