AI Chatbots That Actually Solve Problems, Not Just Apologize
We build production chatbots that understand context, retrieve accurate information, and know when to escalate. Not another widget that loops through “I apologize for the inconvenience” until the customer gives up.
Technology Partners
Recognized by Clutch
Who you work with
Carlos Dutra, Founder
Vindler is led by a senior engineer, not a sales team. Carlos has spent 15+ years building and leading data and AI systems, holds an MSc in Applied Mathematics (machine-learning research) from USP, and completed MIT Sloan Executive Education. He has led teams at Wildlife Studios and Trustly, ships production AI on AWS, and contributes to open source. A Toptal Verified Expert since 2020.
Experience across
Selected work
Production systems, real outcomes
A few engagements in depth, with the numbers that matter.
Automotive / Sales
AI-Powered Sales Assistant with RAG
A production RAG and analytics assistant for automotive dealers
- Shipped to production on Kubernetes across CPU and GPU fleets with GitOps delivery
- Hard multi-tenant isolation: dealer-scoped SQL validation blocks cross-dealer data access
- Grounded RAG with an anti-hallucination fallback instead of fabricated answers
Named reference available on request.
Read the full case study
Enterprise AI
Multi-Agent Systems Architecture
A production supervisor-worker multi-agent assistant for a form-building platform
- Production multi-agent assistant: six specialized agents and 90+ backend tools over MCP
- Reusable agent framework (shared graph, A2A, MCP, human-in-the-loop) that scales by adding agents
- Durable human-in-the-loop approvals that survive container restarts
Named reference available on request.
Read the full case study
Healthcare
Voice AI Assistant for Medicare Patients
A voice-first companion for elderly patients on bedside tablets
- Runs in production on kiosk tablets with end-to-end observability on every call
- True voice-and-touch multimodal interface designed for elderly accessibility
- Six voice skills (medication, reminders, weather, news, trivia, word games) plus web search
Named reference available on request.
Read the full case studyWhat We Build with AI Chatbots
From customer support to sales and internal knowledge, we deliver chatbot solutions that scale.
Customer Support Chatbots
AI chatbots that actually resolve customer issues. We build support bots with RAG-backed knowledge retrieval, multi-turn conversation handling, order and account lookups, and intelligent escalation that routes to the right human agent with full conversation context.
Sales & Lead Qualification Bots
Conversational AI that qualifies leads, answers product questions with real-time data, and books meetings. We integrate with your CRM so the chatbot has full customer context and every interaction is logged for your sales team.
Internal Knowledge Bots
AI assistants for your team that answer questions from internal documentation, policies, and procedures. We build chatbots that search your Confluence, Notion, Google Drive, and internal wikis, providing sourced answers with citations so employees trust the responses.
Omnichannel Chatbots
Deploy one chatbot across web, Slack, WhatsApp, SMS, and email. We build the conversation engine once and connect it to every channel your customers use, maintaining conversation history across channels for seamless handoffs.
Chatbot Analytics & Optimization
Comprehensive dashboards showing resolution rates, escalation reasons, user satisfaction, conversation length, and cost per resolution. We use LangFuse to trace every conversation and identify where your chatbot fails so we can fix it systematically.
Multilingual Chatbots
Chatbots that work in your customers' languages. We build multilingual systems that detect language automatically, retrieve from language-specific knowledge bases, and maintain conversation quality across English, Spanish, Portuguese, and other languages your market requires.
Why Most AI Chatbots Fail (And How We Build Ones That Work)
The market is flooded with chatbot builders that promise AI-powered customer support in five minutes. They work for the demo. Then real customers start typing messy queries with typos, asking follow-up questions that require context from three messages ago, requesting actions that need API calls to your backend, and switching topics mid-conversation. The five-minute chatbot apologizes and suggests contacting support, which defeats the entire purpose.
Production chatbots are distributed systems. The conversation engine needs to maintain state across sessions, the retrieval pipeline needs to find the right answer from thousands of documents, the action layer needs to execute operations (refunds, order changes, account updates) with proper authentication and validation, and the escalation logic needs to route to the right human team with full context. Getting any one of these wrong means a bad customer experience.
We have built chatbots that handle thousands of conversations daily across e-commerce, enterprise SaaS, and healthcare. We know which LLM to use for different conversation types, how to structure knowledge bases for accurate retrieval, and how to build escalation logic that makes human agents more productive instead of just dumping them into a conversation with no context.
Our Tech Stack
We work across the AI chatbot ecosystem and integrate with the tools your team already uses.
How We Work
A straightforward process from first call to production deployment.
Discovery Call
We start with a 30-minute technical conversation to understand your data, your users, and your constraints. No sales pitch. We dig into what you have tried, what failed, and what success looks like.
Architecture Proposal
Within a week, we deliver a detailed technical proposal: system architecture, technology choices with rationale, estimated timeline, and cost breakdown. You will know exactly what we plan to build and why.
Build & Ship
We build iteratively with weekly demos. You see working software from week one, not slide decks. Every PR is reviewed, every decision is documented, and we transfer knowledge continuously so your team can maintain what we build.
Frequently Asked Questions
Ready to Build a Chatbot That Actually Works?
Tell us about your chatbot project and we will respond within 24 hours with an initial assessment. Whether you need customer support, sales, or internal knowledge, we build chatbots that deliver.
Get a Free Assessment
Describe your chatbot needs and we'll assess how AI can improve your customer experience.