RAG development services for grounded AI search, copilots, agents, and knowledge applications. Build secure retrieval, citations, evaluation, and production-ready RAG.

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15+

Years building production software

120+

Engineers across delivery pods

75+

Clients served in North America

3K+

Successful product releases

Why Logiciel

Why RAG System Development Needs More Than a Vector Database.

Why Logiciel · 01

Good RAG depends on document quality, parsing, chunking, metadata, retrieval strategy, reranking, prompts, and application behavior working together.

Why Logiciel · 02

Semantic similarity alone can return plausible passages that are incomplete, outdated, duplicated, or wrong for the user’s actual question.

Why Logiciel · 03

Retrieval must respect user, tenant, document, account, and source permissions before context reaches the model.

Why Logiciel · 04

Large knowledge sets need ingestion and indexing pipelines that handle updates, deletions, versions, failed parsing, and changing source systems.

Why Logiciel · 05

Grounded answers still need evaluation because a model can ignore retrieved evidence, combine sources incorrectly, or answer beyond the available context.

Why Logiciel · 06

RAG performance depends on latency and cost across search, reranking, context construction, model calls, citations, and application logic.

Why Logiciel · 07

Production RAG needs observability, source freshness, regression testing, and feedback loops as documents, users, models, and questions change.

What you get

What You Get From Logiciel RAG System Development Services.

We combine data engineering, search, AI engineering, application development, and evaluation to turn enterprise knowledge into grounded AI experiences.

Retrieval built around user intent

combining semantic, keyword, metadata, filtering, reranking, and query strategies based on the questions users actually ask

Reliable knowledge ingestion

processing documents and source systems with parsing, chunking, metadata, versioning, deduplication, update, and deletion workflows

Permission-aware retrieval

enforcing user, tenant, document, account, and source access rules before retrieved context is passed to the model

Grounded answers with source visibility

connecting generated responses to retrieved evidence through citations, document references, and context that users can inspect

RAG evaluation that reflects real questions

testing retrieval relevance, answer grounding, citation quality, coverage, refusal behavior, latency, and cost on representative scenarios

Production-ready RAG architecture

integrating vector search, keyword search, reranking, model access, caching, APIs, observability, and application workflows

Continuous retrieval improvement

using failed searches, user questions, evaluation results, source changes, and production signals to improve the system over time

Highlights

RAG Systems Across Enterprise Workflows.

Enterprise Knowledge Assistants

What it meansGive employees grounded answers from approved policies, documentation, procedures, and internal knowledge with source visibility.

Customer Support RAG

What it meansGround support responses in product documentation, account-approved knowledge, troubleshooting content, and service policies.

Document Intelligence RAG

What it meansRetrieve relevant passages across contracts, reports, manuals, research, and other document-heavy workflows.

Product and Technical Documentation RAG

What it meansHelp users and internal teams navigate large documentation sets with context-aware retrieval and cited sources.

Policy and Procedure Search

What it meansConnect policies, SOPs, controls, and operational guidance to role-aware question answering and knowledge discovery.

Multi-Source Research Workflows

What it meansRetrieve and synthesize information across approved repositories while preserving source attribution and access boundaries.

RAG for AI Agents

What it meansProvide agents with grounded context from governed knowledge sources before they reason, use tools, or take approved actions.

What we build

RAG Development Models Built Around Your Team.

Dedicated RAG Engineering Squad

AI, search, data, software, and QA engineers work across knowledge discovery, ingestion, retrieval, reranking, application integration, evaluation, deployment, and improvement.

RAG Consulting and Team Extension

Specialists strengthen your team across retrieval architecture, vector and keyword search, data pipelines, permission models, evaluation, and production engineering.

Outcome-Based RAG Engagement

A focused initiative builds or improves one knowledge assistant, semantic search experience, copilot, document intelligence workflow, or RAG capability for an AI agent.

Under the hood

RAG System Development Services We Deliver.

RAG Use-Case and Knowledge Discovery

We map user questions, source systems, document types, permissions, freshness requirements, failure risks, and success criteria before selecting the retrieval architecture.

Included

Knowledge Ingestion and Indexing

We build pipelines for parsing, chunking, metadata, embeddings, deduplication, versioning, incremental updates, deletions, and source synchronization.

Included

Hybrid Retrieval and Reranking

We combine semantic search, keyword retrieval, filters, metadata, query transformation, reranking, and business rules where they improve relevance.

Included

Permission-Aware RAG Architecture

We enforce identity, tenant, document, account, and source-level access rules during retrieval rather than relying on the model to protect restricted information.

Included

Grounded Generation and Citations

We design context construction, prompts, source attribution, answer boundaries, refusal behavior, and application UX around retrieved evidence.

Included

RAG Evaluation and Testing

We test retrieval relevance, answer grounding, citation correctness, coverage, access boundaries, latency, cost, and behavior on representative questions.

Included

Production RAG Monitoring and Improvement

We monitor ingestion, source freshness, retrieval failures, answer quality, latency, cost, and user feedback to improve the system after launch.

Included

Insights

RAG Development Insights & Frameworks.

RAG Retrieval Quality Model

A framework for evaluating whether the right evidence is found before measuring whether the model produces a good answer.

Insights

Knowledge Source and Permission Matrix

A method for mapping sources, owners, freshness, document types, user roles, tenant boundaries, and access rules before indexing.

Insights

RAG Failure Diagnosis Framework

A framework for separating ingestion, parsing, chunking, retrieval, reranking, context, generation, citation, permission, and application failures.

Insights

How we work

Our RAG System Development Framework.

Map Questions, Sources, and Permissions

We identify target users, representative questions, source systems, document types, ownership, access rules, freshness needs, and measurable outcomes.

Design the Retrieval Architecture

We define ingestion, parsing, chunking, metadata, embeddings, search methods, filters, reranking, context construction, citations, and model integration.

Build the RAG System

We implement source connectors, indexing pipelines, retrieval, permission checks, APIs, prompts, citations, caching, and application integration.

Evaluate Retrieval and Answers

We test realistic questions for relevance, grounding, citations, coverage, restricted-data boundaries, latency, cost, and expected refusal behavior.

Deploy, Monitor, and Improve

We monitor source freshness, retrieval failures, answer quality, latency, cost, and user behavior while refreshing evaluation sets as knowledge and usage change.

Selected work

Tailored engineering for your industry.

Zeme · Real Estate Cut development costs 50% and launched 3× faster with dedicated dev teams.

Real Estate

Cut development costs 50% and launched 3× faster with dedicated dev teams.

Leap · Construction Scaled to 7-figure ARR with AI-augmented software teams.

Construction

Scaled to 7-figure ARR with AI-augmented software teams.

KW · Real Estate 56M+ workflows automated, saving agents 30% time with AI-powered tasks.

Real Estate

56M+ workflows automated, saving agents 30% time with AI-powered tasks.

Resources

Insights for tech leaders.

Whitepaper · PDF

The Model Evaluation Report

Whitepaper · PDF

The Economics of Model Evaluation

Whitepaper · PDF

Benchmarking Model Evaluation

In their words

What our clients say.

Teams that needed to ship fast, and did. Here's what partnering with Logiciel felt like from the inside.

I would highly recommend them to anyone looking to scale quickly or needing support in engineering, product, or QA.

Patrick Fingles

CEO, Leap

We don't just call them Logiciel; they're part of the Zeme team. Within the first week they were contributing meaningfully to our codebase.

Elior Alayev

Founder & CEO, Zeme

The Logiciel team worked tirelessly and built everything we needed, with security and best practices across our entire platform. It allowed us to become #1 in our industry, and we couldn't have done it without them.

David Buzzelli

Co-Founder, JobProgress

Questions

Frequently asked questions.

What are RAG system development services?

RAG system development services involve building AI applications that retrieve relevant information from approved knowledge sources and provide that context to a language model before it answers. Production RAG also includes ingestion, permissions, citations, evaluation, monitoring, and application integration.

How is RAG different from fine-tuning?

RAG retrieves current external knowledge at request time, while fine-tuning changes model behavior or learned patterns through training. They solve different problems and can sometimes be used together depending on the use case.

What data can a RAG system use?

RAG can work with documents, knowledge bases, product content, policies, manuals, tickets, reports, database-backed records, and other approved sources that can be indexed or retrieved through appropriate interfaces.

Should a RAG system use vector search only?

Not necessarily. Many systems benefit from hybrid retrieval that combines semantic search with keyword search, metadata filters, query transformation, reranking, or business rules. The right approach depends on the knowledge and user questions.

How do you prevent a RAG system from exposing restricted information?

Access rules should be enforced during retrieval using authenticated user context and source permissions. Restricted content should be filtered before it reaches the model, with tests for cross-user, cross-tenant, and document-level leakage.

How do you measure RAG quality?

RAG evaluation can measure retrieval relevance, answer grounding, citation correctness, coverage, refusal behavior, latency, cost, and workflow-specific task success using representative questions and expected evidence.

Can RAG be integrated into an existing application?

Yes. RAG can be integrated into SaaS products, internal portals, support systems, search experiences, copilots, agents, and other applications through APIs and existing identity, data, and workflow layers.

Let's build

Turn Your Knowledge Base Into Answers People Can Verify.

Bring us the documents, repositories, or application knowledge you need to make searchable through AI. We’ll help define the retrieval architecture, permissions, evaluation, and path to production.

Book an Intro Call

RAG System Development Services.

See Logiciel in action.

Why RAG System Development Needs More Than a Vector Database.

Good RAG depends on document quality, parsing, chunking, metadata, retrieval strategy, reranking, prompts, and application behavior working together.

Semantic similarity alone can return plausible passages that are incomplete, outdated, duplicated, or wrong for the user’s actual question.

Retrieval must respect user, tenant, document, account, and source permissions before context reaches the model.

Large knowledge sets need ingestion and indexing pipelines that handle updates, deletions, versions, failed parsing, and changing source systems.

Grounded answers still need evaluation because a model can ignore retrieved evidence, combine sources incorrectly, or answer beyond the available context.

RAG performance depends on latency and cost across search, reranking, context construction, model calls, citations, and application logic.

Production RAG needs observability, source freshness, regression testing, and feedback loops as documents, users, models, and questions change.

What You Get From Logiciel RAG System Development Services.

Retrieval built around user intent

Reliable knowledge ingestion

Permission-aware retrieval

Grounded answers with source visibility

RAG evaluation that reflects real questions

Production-ready RAG architecture

Continuous retrieval improvement

RAG Systems Across Enterprise Workflows.

Enterprise Knowledge Assistants

Customer Support RAG

Document Intelligence RAG

Product and Technical Documentation RAG

Policy and Procedure Search

Multi-Source Research Workflows

RAG for AI Agents

RAG Development Models Built Around Your Team.

Dedicated RAG Engineering Squad

RAG Consulting and Team Extension

Outcome-Based RAG Engagement

RAG System Development Services We Deliver.

RAG Use-Case and Knowledge Discovery

Knowledge Ingestion and Indexing

Hybrid Retrieval and Reranking

Permission-Aware RAG Architecture

Grounded Generation and Citations

RAG Evaluation and Testing

Production RAG Monitoring and Improvement

RAG Development Insights & Frameworks.

RAG Retrieval Quality Model

Knowledge Source and Permission Matrix

RAG Failure Diagnosis Framework

Our RAG System Development Framework.

Map Questions, Sources, and Permissions

Design the Retrieval Architecture

Build the RAG System

Evaluate Retrieval and Answers

Deploy, Monitor, and Improve

Tailored engineering for your industry.

Cut development costs 50% and launched 3× faster with dedicated dev teams.

Scaled to 7-figure ARR with AI-augmented software teams.

56M+ workflows automated, saving agents 30% time with AI-powered tasks.

Insights for tech leaders.

The Model Evaluation Report

The Economics of Model Evaluation

Benchmarking Model Evaluation

What our clients say.

Frequently asked questions.

Turn Your Knowledge Base Into Answers People Can Verify.