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🇵🇹PORTO, PORTUGAL TECH CORRIDOR

Hire Senior AI Chatbot & Enterprise RAG Engineers in Porto

Deploying custom multilingual AI chatbots, building enterprise RAG document search engines, or integrating autonomous customer intelligence in Porto? InnoXpert delivers hallucination-free vector retrieval, sub-50ms hybrid search, and production Next.js interfaces with guaranteed WET / WEST (UTC+0 / UTC+1) overlap and verified 5.0-star trust.

5.0 ★ Envato Elite Author
Clutch & GoodFirms Verified
Contra & Upwork Escrow
terminal // porto.innoxpert.sh
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Custom AI & RAG Engineers Production Architecture in Porto
Custom AI & RAG Engineers€ €38 - €65 / hr
Target Corridor🇵🇹Porto, Portugal
Active TimezoneWET / WEST (UTC+0 / UTC+1)
Standard Timeline2 to 4 Weeks for Production AI Launch
Core Architecture Stack:
LlamaIndexLangChainQdrantPineconeCohere ReRank
Timezone Overlap
WET / WEST (UTC+0 / UTC+1)

Full working hours support (09:00 - 18:00 WET) with instant sync, daily standups, and Git reviews.

Transparent Billing
€ (EUR) Pricing

Market standard: €38 - €65 / hr. Fixed-price milestone delivery or dedicated sprint contracts.

Regional Tech Hubs
Porto Corridors

Serving founders across Industrial Automation, HealthTech & Telemedicine, Nearshore Engineering.

Enterprise Security
Compliance & Speed

CNPD • GDPR • EU AI Act • ISO 27001.

Enterprise RAG, Vector Search & Multi-Lingual LLM Systems

What We Build for Porto Companies

01

Enterprise Retrieval-Augmented Generation (RAG) Engine

Building production RAG pipelines featuring semantic chunking, dense-sparse hybrid vector indexing, Cohere cross-encoder re-ranking, and dynamic citation attribution.

LlamaIndexLangChainQdrantPineconeCohere ReRank
02

Multilingual Conversational AI & CRM Assistants

Deploying intelligent customer-facing assistants capable of native multilingual understanding (EN, ES, IT, PT, EL, TR) with live CRM lookup and automated ticket resolution.

OpenAI GPT-4oClaude 3.5 SonnetFastAPIZendesk APIHubSpot API
03

Production Next.js 15 Streaming Chat Interfaces

Crafting modern, responsive chat UIs featuring real-time Markdown rendering, syntax-highlighted code blocks, prompt history, token usage telemetry, and voice input.

Next.js 15Vercel AI SDKTailwind CSSZustandRadix UI
04

EU AI Act & GDPR Strict Privacy Guardrails

Implementing pre-retrieval PII scrubbing, context sanitization, and output hallucination filters ensuring 100% compliance with EU AI Act risk categorizations and GDPR.

Guardrails AIPresidio PII AnonymizerRedisDockerAWS eu-central-1
Zero-Regression Engineering

Fixing Critical Custom AI & RAG Engineers Bottlenecks

Problem: Hallucinations & Untruthful Answers Damaging Customer Trust

Root Cause: LLMs generating plausible-sounding but completely fictitious claims when context is missing from naive vector search.

Our Fix:Engineered strict contextual grounding with reciprocal rank fusion (RRF), cross-encoder validation, and mandatory inline document citations.
Problem: Language Drift & Grammatical Breakdowns in Multilingual Contexts

Root Cause: Translating queries through generic models without preserving regional idioms and legal terminology.

Our Fix:Implemented language-specific vector embeddings and bilingual prompt framing preserving native semantic nuances across Spanish, Italian, and Portuguese.
Problem: Data Privacy Breaches & Regulatory Exposure Under EU AI Act

Root Cause: Passing unredacted customer names, emails, and sensitive financial records directly to third-party public LLM APIs.

Our Fix:Engineered local client-side PII redaction microservices that scrub identifying tokens before querying LLM endpoints.
Proven Enterprise Code

Featured Systems Built by Janitha Dilshan

View all 25+ production systems
JurisRAG Multilingual Legal Knowledge & Discovery Platform - Custom AI Chatbots & Enterprise RAG Systems for Porto
Legal AI & Vector Retrieval

JurisRAG Multilingual Legal Knowledge & Discovery Platform

Bilingual EU Law RAG Engine with Cross-Encoder Re-Ranking

Engineered a high-precision Retrieval-Augmented Generation system over 50,000+ EU legal directives and court precedents across English, Spanish, Italian, and Portuguese, achieving 99.1% citation accuracy and zero hallucination drift.

99.1% Citation Precision • Sub-40ms Vector Queries • EU AI Act Compliant
LlamaIndexQdrantCohere ReRank
Live Demo
LexiGuard AI Statutory Heuristic Engine - Custom AI Chatbots & Enterprise RAG Systems for Porto
LegalTech & On-Chain Notarization

LexiGuard AI Statutory Heuristic Engine

BLI Legal Tech Hackathon 2 Flagship Compliance Platform

Integrated multi-modal Google Gemini 2.5 Flash with custom clause-retrieval vectors to parse commercial agreements, flag liability asymmetries, and generate FRE Rule 902 certified evidence certificates.

0-100 Legal Health Score • Sub-2s Notarization • Base Sepolia EVM
Gemini 2.5SolidityBase Sepolia
Live Demo
AtelierAI Multilingual High-Ticket Luxury Concierge - Custom AI Chatbots & Enterprise RAG Systems for Porto
E-Commerce & Conversational AI

AtelierAI Multilingual High-Ticket Luxury Concierge

Autonomous Multilingual Customer Support & Order Routing Agent

Deployed a production conversational assistant handling customer inquiries across 6 languages with live Shopify inventory lookup, order modifications, and automated return processing.

72% Autonomous Resolution • 6 Languages • Zero Inventory Hallucinations
LangChainOpenAI GPT-4oRedis Cache
Live Demo
NEMOGuard Enterprise RAG Security & Prompt Shield - Custom AI Chatbots & Enterprise RAG Systems for Porto
AI Security & Data Redaction

NEMOGuard Enterprise RAG Security & Prompt Shield

NVIDIA Hackathon Top Submission ($50K Prize Pool)

Real-time PII redaction and prompt-injection firewall inspecting RAG context windows, preventing indirect document prompt injections and GDPR data leakage.

Sub-15ms Latency • 99.4% Jailbreak Interception • GDPR Redaction
NVIDIA NIMPythonFastAPI
Live Demo
Clear Terms & Confidence

Frequently Asked Questions — Porto

How do you eliminate hallucinations when building an AI chatbot for enterprise data?+
We employ strict RAG constraints: chunking documents with rich metadata, utilizing hybrid dense-sparse vector search, filtering with cross-encoders, and forcing the LLM to output verbatim citations with direct links to the source paragraph. If the answer is not in the verified source, the model politely abstains.
Are your AI systems compliant with the new European Union AI Act and GDPR?+
Yes, 100%. We design our AI architectures strictly around EU AI Act guidelines: comprehensive audit trails, human-in-the-loop escalation paths, zero-data-retention enterprise API endpoints, and client-side PII anonymization to safeguard GDPR rights.
Can the AI assistant integrate directly with our existing databases and CRM?+
Absolutely. We build custom API tool integrations using LangChain or LlamaIndex tools, allowing the assistant to safely query PostgreSQL/MySQL databases, look up live order statuses in Shopify/WooCommerce, or update Zendesk tickets via secure OAuth tokens.
Can we hire you under milestone escrow via Contra or Upwork?+
Yes! We support Contra (0% client fees) and Upwork milestone escrow. Your funds remain 100% protected until each RAG pipeline and chatbot milestone is tested and verified on your staging environment.

Explore Custom AI & RAG Engineers in Regional Hubs:

Ready to Ship Your Custom AI & RAG Engineers Project in Porto?

Let's build a fast, scalable, and bug-free web application. Whether you need a rapid AI prototype or an end-to-end enterprise platform, we guarantee clean code, daily communication, and 100% milestone satisfaction.

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