Aibar Berekeyev

AI Engineer (Middle+), previously Junior AI Engineer

EPAM Systems

IT consulting and software engineering services company.

Built and evaluated production RAG and multimodal systems, including assistants used by tens of thousands of employees and retrieval experiments that improved NDCG@5 by 42.57%.

• Engineered an end-to-end RAG pipeline for the GenAI Hub (EVA) processing 100,000+ documents from Confluence and SharePoint; built the Python conversational engine serving instant answers to 40,000+ users. • Designed and ran controlled experiments comparing ColPali (vision-language retrieval model) against traditional RAG baselines, achieving a 42.57% improvement in NDCG@5; shipped findings to production across two enterprise chatbots.

Co-Founder & AI Engineer

Duken.ai

Co-founded an AI SaaS product, reached 37+ paying customers and $1,850+ MRR, and built image-generation features linked to a 33% increase in average customer conversion.

• Co-founded an AI-native SaaS platform; scaled to 37+ paying customers generating $1,850+ MRR within months of launch. • Architected a multi-stage image generation pipeline using a ControlNet-conditioned diffusion model with automated background removal; boosted average customer conversion rates by 33%. • Designed and fine-tuned inference pipeline for latency optimization, reducing end-to-end generation time to meet real-time product requirements.

Bachelor of Science, Computer Science

Nazarbayev University