AI Engineering
for Your Business

Expert AI engineering consultancy services for enterprises, scaleups, and startups. Transform your business with cutting-edge AI solutions.

LLMs & Multimodal VLMs Agents & RAG Fine-Tuning MLOps & Production AI
Mateusz Gierlach

Core Expertise

Deep technical expertise across the entire AI engineering spectrum

1

Context Engineering

  • Prompting techniques:
    • chain-of-thought
    • tree-of-thought
    • few-shot prompting
    • zero-shot prompting
  • Context window management strategies, semantic/response caching
  • Structured outputs: JSON schemas, Pydantic
2

Agents & Agentic Systems

  • Agent/agentic approaches:
    • single-agent systems
    • multi-agent systems
    • pre-defined agentic workflows
    • planner-executor-critic patterns
    • ReAct, Reflexion
  • Elements: tool use / function calling, planning, reflection, memory (short-term, long-term)
  • Agents tech: AutoGen, CrewAI, DSPy, Langchain, Haystack
3

RAG & Agentic RAG & Advanced Retrieval

  • Key techniques:
    • source attribution
    • hybrid retrieval (semantic & keyword-based)
    • reranking
  • Advanced chunking & indexing strategy: hierarchical/recursive retrieval (small-to-big), multi-vector retrieval
  • Structured data retrieval: knowledge graphs (GraphRAG), text-to-SQL
  • Agentic query transformation:
    • query understanding
    • query rewriting
    • intent classification
    • query routing
    • step-back prompting
    • HyDE (generating hypothetical documents)
  • Embedding store tech: Pinecone, FAISS, Qdrant, Weaviate, pgvector
  • Other tools: LlamaIndex, Langchain
4

Multimodal/VLM Retrieval (Vision RAG) & Multimodal Use Cases

  • Key techniques:
    • cross-modal embeddings with vision-text grounding
    • layout-aware document intelligence (extracting at once text & tables & charts/images, cross-page table linking)
  • Document intelligence tech: Unstructured, PyMuPDF, DocTR, LlamaIndex
  • Multimodal models: SigLIP, E-5V, Qwen2-VL, PaliGemma, ColPali, LLaVA
5

Fine-Tuning

  • Key techniques: parameter-efficient domain adaptation (LoRA / QLoRA, PEFT), supervised fine-tuning SFT
  • Data curation for fine-tuning: synthetic data generation, data cleaning and filtering
  • Advanced fine-tuning techniques: merging models/adapters (combining multiple LoRAs), RLAIF
6

LLM/VLM Inference & LLM/VLM Computational Optimization

  • Key techniques:
    • quantization (AWQ/FP8/INT8/INT4)
    • KV-cache (and cache sharing)
    • MoE routing
    • RoPE
    • improved Attention mechanisms (Flash, Paged)
    • serverless scaling
    • dynamic batching
  • HuggingFace ecosystem for open-source models
  • API-based LLMs: OpenAI, Anthropic, Gemini, Grok, Mistral, Cohere
  • Inference tech: vLLM, TensorRT-LLM, llama.cpp, TGI
7

LLMOps/MLOps & Cloud

  • Containerization, orchestration & infrastructure: Docker, Kubernetes, Terraform, AWS Cloud Formation
  • CI/CD for AI Systems: Jenkins, MLflow
  • Real-time streaming pipelines: Kafka, WebSockets
  • ETL pipelines & data warehouses (Snowflake, BigQuery)
  • Data and model versioning
  • Cloud tech: AWS (SageMaker, Bedrock), Google Cloud (Vertex AI, BigQuery), Azure (Azure ML, Azure OpenAI), Databricks
8

Reinforcement Learning

  • Research interests within: DPO, GRPO, DFT (dynamic fine-tuning)
  • Current deep-dive: RL for agentic tool-calling
9

Evals & Observability

  • Key techniques: LLM-as-a-Judge
  • Production monitoring: Grafana
  • Tech: RAGAS, DeepEval, LangSmith, Weights & Biases, Langfuse, Arize Phoenix, OpenTelemetry
10

Software Engineering for AI Applications & AI-Assisted Programming

  • AI applications tech: Gradio, Streamlit
  • AI-assisted programming tech: Cursor, Claude Code
11

AI Strategy & Safety

  • Key techniques:
    • Use Case Discovery
    • ROI Modelling
    • Business Case Development
    • AI Roadmapping
    • KPI Mapping
  • Data privacy & anonymization: PII techniques
  • LLM security: defense against prompt injection, data leaking, insecure input/output handling

About Mateusz Gierlach Consulting

AI engineering consultancy specializing in helping enterprises, scaleups, and startups implement cutting-edge AI solutions that drive real business value.

Enterprises
Scaleups
Startups
Strategic Vision

Transform AI opportunities into actionable roadmaps and business outcomes.

Technical Excellence

Deep hands-on expertise in modern AI technologies and production systems.

Rapid Deployment

Get from concept to production quickly with proven methodologies.

Let's Build the Future Together

Ready to transform your business with AI?

Let's discuss how we can accelerate your AI initiatives and unlock new possibilities.

Mateusz Gierlach

Founder @ Mateusz Gierlach Consulting

mgierlach5@gmail.com

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