Gustavo Karsten
Gustavo Karsten

AI Agent Engineer

Open to offers · Member since 19 Oct 2026
Location
Brazil
Desired salary
Unspecified
Work preference
Remote Only
Experience level
Mid

About

Professional summary

I am an AI Agent Engineer and founder of DockPlus AI, with more than two years of experience building production LLM systems, automation workflows, and data platforms for clients in Brazil and the United States.

I build AI solutions end to end, from requirements discovery and architecture through implementation, deployment, monitoring, and ongoing improvement. My work focuses on reliable agent workflows, retrieval-augmented generation, tool integrations, and operational safeguards.

I have developed TypeScript-based business agents with multi-step tool execution, streaming responses, persistent conversation history, token tracking, and shared Model Context Protocol interfaces. I prioritize safe automation through confirmation gates, bounded execution loops, authentication-aware identity, audit logging, and scoped data access.

My engineering stack includes TypeScript, Node.js, Python, FastAPI, React, Next.js, PostgreSQL, pgvector, Redis, Docker, Linux, and Ansible. I have hands-on experience with OpenAI, Claude, Ollama, LangChain, LangGraph, Langfuse, n8n, and integrations such as QuickBooks, Stripe, and Google APIs.

Before focusing on AI engineering, I worked in server infrastructure and technical support roles, operating high-availability Linux and database environments, automating provisioning, and supporting critical healthcare infrastructure under strict SLAs. I am a native Portuguese speaker with upper-intermediate English used in client work and intermediate Spanish.

Skills

28 capabilities

Tech stack & tools

Working toolkit

Application Hosting

Data Stores

Languages & Frameworks

Experience

Career history

Founder & AI Engineer DockPlus AI

I deliver AI systems end to end, implementing LangGraph workflows, pgvector-based RAG, and Langfuse tracing to monitor latency, token costs, and response quality.

I built LedgerJob, a TypeScript AI business-operations agent using the OpenAI Responses API with multi-step tool execution, SSE streaming, persistent conversation history, and token-usage tracking. I exposed 60 business tools through an internal agent and shared MCP server, covering leads, quotes, invoices, projects, appointments, QuickBooks, messaging, and service agreements, with confirmation gates and bounded execution loops. I also built Cape Cod Permits, a scheduled permit-data collection platform for 15 municipalities that normalizes data into PostgreSQL and provides MCP tools for permit search, statistics, contractor profiles, coverage guidance, scoped contact access, and contact-query audit logs.

Mid-Level Server Technical Analyst PowerX

I built LangChain, Ollama, and n8n pipelines integrated with internal data sources and APIs. I implemented document-grounded RAG systems using nomic-embed-text embeddings and pgvector.

I operated high-availability Linux and database infrastructure. I also automated server provisioning and operational tasks using Ansible.

Infrastructure Analyst Grupo Fleury

I supported critical healthcare infrastructure in an environment governed by strict service-level agreements.

My responsibilities included Active Directory administration and ServiceNow-based support operations.

Infrastructure Technician Toor Tecnologia

I administered Linux and Windows server environments, supporting core infrastructure operations.

I also worked with firewalls, Hyper-V virtualization, and automation scripts to improve infrastructure management.

Education

Learning history

Estácio de Sá University

Autonomous Agents and Knowledge Automation, Autonomous Agents and Knowledge Automation

In progress.

FIAP

Certification, Linux Fundamentals

Linux Fundamentals certification.

ApoioAG

Certification, Technical Leadership

Technical Leadership certification.

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