ServicesAI EngineeringRAG & Knowledge Systems
Fixed scope · 4–8 weeks

RAG & Knowledge Systems.

Make your private docs answer questions — accurately, with citations, and without leaking to a public model.

RAG looks simple on a slide: chunk, embed, retrieve, generate. In practice, retrieval quality is the entire game — and chunking strategy, hybrid search, reranking, and eval discipline are what separate a system that works from one that confidently hallucinates.

The numbers
4–8 wk
to first prod ship
≥85%
answer faithfulness target
100%
answers cite sources
RAGAS
scored on every PR
▣ What you get

Deliverables.

Every engagement ships these as concrete artifacts you own — not slides, not hand-waving.

01

Ingestion pipeline

Connectors for SharePoint, Confluence, Drive, S3, databases. Incremental sync, ACL-aware so people only retrieve what they're allowed to read.

02

Hybrid retrieval

Dense (BGE / OpenAI embeddings) + sparse (BM25) + reranker (Cohere / cross-encoder) — tuned to your corpus, not stock defaults.

03

Eval harness

Golden Q&A set, RAGAS faithfulness / answer-relevance / context-precision scores, regression checks on every change.

04

Answer UI with citations

Every answer shows source chunks with page-level deep-links. “I don’t know” is a first-class response, not a failure.

⌖ How we work

The engagement.

PHASE 011 week

Audit corpus

Sample your documents, profile structure, identify the long-tail formats (scanned PDFs, tables, code) that wreck naive RAG.

PHASE 022–3 weeks

Index + retrieve

Build the ingestion + chunking + retrieval pipeline. Tune chunk sizes (300–600 tokens with overlap is the start, but every corpus is different).

PHASE 031–2 weeks

Eval + tune

Build the golden Q&A set, score with RAGAS, iterate on chunking, reranker, and prompts. Ship when faithfulness ≥85%.

PHASE 041 week

Ship

Wire to your front-end, add ACL filtering, deploy, hand off ops runbook.

▤ Tools we use

Pragmatic stack.

Best-in-class where it matters; boring and battle-tested everywhere else.

Embeddings
OpenAI text-embedding-3 · BGE
Vector DB
Pinecone · Weaviate · pgvector
Reranker
Cohere Rerank · cross-encoders
Framework
LlamaIndex · Vercel AI SDK
Eval
RAGAS · DeepEval
Parsing
Unstructured · LlamaParse · Docling
¤ Pricing

Engagement model.

Fixed bid · per project
Quotedafter corpus audit

Cost depends on corpus size, format diversity (PDFs / scans / structured), connector count, and ACL complexity. Typical engagements run 4–8 weeks. Audit + scope conversation is free.

  • Corpus audit + chunking strategy
  • Hybrid retrieval (dense + sparse + rerank)
  • ACL-aware ingestion
  • RAGAS-scored eval suite
  • Answer UI with source citations
  • Cost & latency dashboards
  • 90-day warranty
? FAQ

Common questions.

Do we need a vector database?

Usually yes, but not always. For corpora under ~50K chunks, Postgres + pgvector is often enough. Above that, Pinecone / Weaviate / Qdrant become worth the line item.

How do we handle PDFs with tables and figures?

We use vision-LLM-aware parsers (LlamaParse, Docling) for structured docs, and store table content separately from prose. Naive PDF-to-text loses 30% of the signal.

Can users only retrieve docs they're allowed to read?

Yes — we propagate ACLs from the source system into retrieval-time filters. Critical for HR, legal, and finance corpora.

Should we fine-tune the embedding model?

Almost never. Domain-specific reranking + better chunking gets you 90% of the win at 5% of the cost.

Now booking Q3 2026

Let's build the
next chapter of your business.

Quick chat on WhatsApp. We'll map your highest-leverage AI bet, show you a reference architecture, and price the first slice.

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