Marek Nowak
Cloud Deployment
Kubernetes migration with a rollback plan you will not need
Works with Docker
from€1,500.00
1 / 3
Ingestion, chunking, hybrid retrieval and an eval harness that catches regressions.
Developers who work with Python, FastAPI, PostgreSQL and take scoped work with a fixed price and delivery date.
Cloud Deployment
Works with Docker
Retrieval-augmented generation as an engineering artefact rather than a notebook. Document ingestion with layout-aware chunking, hybrid search over pgvector and BM25, reranking, citation-enforced generation, and — the part everyone skips — an evaluation harness with a golden set, so a prompt change that quietly degrades answer quality fails CI instead of shipping.
Eval harness with a golden set
A prompt change that degrades quality fails CI. This is the difference between a demo and a product.
Layout-aware chunking
Tables and headings survive ingestion instead of becoming word soup.
Citation enforcement
An answer without a retrievable citation is rejected, not returned with a disclaimer.
Provider-agnostic
OpenAI, Anthropic or a local model behind one interface.
4.1
9 reviews
9 verified
Web Application Development
Works with PostgreSQL
Custom Software
Works with Python
Database
Retail demand forecasting with the feature pipeline and the honest backtest.
AI Agent
Deterministic replay, budget limits and traces you can read at three in the morning.
It runs, but I found three places where errors are swallowed silently. I would not ship this without a pass over it.
8 found this helpful
Seller replied
The listing says what is out of scope, and it was right. I bought exactly what I expected to buy.
12 found this helpful
No surprises, no missing files, no "contact us for the full version". Would buy from this seller again.
22 found this helpful
Seller replied
Everything worked except one migration that needed a manual tweak on Postgres 17. Seller answered within the day.
4 found this helpful
Nothing abandoned, nothing pinned to a version that was withdrawn. I audited the tree before buying and it held up.
11 found this helpful