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Alexander Kazeka

@alexanderkazeka

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Senior AI/ML engineer specializing in LLMs, GenAI, and production-grade MLOps solutions.

Portugal

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What I'm looking for

I seek senior roles building production LLM/GenAI products with strong MLOps, collaborative teams, clear impact metrics, and opportunities to scale AI across business units.

I am a Senior AI/ML Engineer with 9+ years building production-grade AI systems, focused on Large Language Models, RAG architectures, and MLOps infrastructure. I have led end-to-end development of LLM-based solutions serving thousands of users, delivered measurable improvements (50% improvement in recommendation quality, 35% reduced response time), and translated cutting-edge research into scalable applications across banking, recruiting, and computer vision domains.

I architect and deploy robust ML platforms—designing ETL/ELT pipelines, model versioning (DVC), observability (Langfuse), and model serving (vLLM) on Kubernetes—while evangelizing AI capabilities to leadership and cross-functional teams. My background spans computer vision, NLP, and infrastructure engineering, with hands-on experience in Python, C++, Go, Hugging Face, LangChain, Weaviate, Qdrant, FastAPI, and cloud-native tooling.

Experience

Work history, roles, and key accomplishments

Lead Data Scientist

Alfa-Bank Belarus

Oct 2022 - Dec 2025 (3 years 2 months)

Architected and deployed production RAG-based LLM assistants serving 1,000+ users, reducing response time by 35% and enabling autonomous handling of legal document queries and test automation; built MLOps infrastructure and drove adoption of 12+ AI features across 8 business units.

RAG VLLM Weaviate Qdrant DVC Kubernetes Python Langfuse

Lead Computer Vision Engineer

aOrion

Sep 2019 - Oct 2022 (3 years 1 month)

Led engineering team to deliver SLAM, real-time mapping, and photogrammetry for autonomous UAV navigation on NVIDIA Jetson platforms and engineered a visual-odometry-based safe landing system for GPS-denied environments.

Python C++OpenCV PyTorch NVIDIA Jetson

Senior Machine Learning Engineer

Scout Exchange

Apr 2016 - Aug 2019 (3 years 4 months)

Developed an NLP-based recommender that improved talent match quality by 50%, implemented a VAE for job description summarization, and established MLOps workflows including CI/CD and A/B testing on AWS.

NLP Recommender Systems Python TensorFlow AWS CI CD SpaCy ETL

R&D Software Engineer

Litl

Jan 2013 - Apr 2016 (3 years 3 months)

Pioneered deep learning image-search features and built image fingerprinting microservices processing 10M+ photos, reducing storage costs by 35% and enabling style/face/content search ahead of peers.