Gustavo Karsten
AI Agent Engineer | Production AI & Automation
In IT since 2005, building LLM systems for more than 2 years. I'm CTO & Co-Founder at DockPlus AI, where I build AI agents, MCP servers and integrations for clients in Brazil and the US, from requirements to production monitoring.
- In IT since 2005
- 2+ years with LLMs
- CTO & Co-Founder · DockPlus AI
- PT · EN · ES
Experience
- Jan 2026 – Present
DockPlus AI
CTO & Co-Founder · AI Engineer
I build and ship AI systems for clients in Brazil and the US. Highlights: the LedgerJob agent, with 66 tools also exposed over MCP, and the Cape Cod Permits data pipeline that agents query over MCP. I use LangGraph, RAG with pgvector and Langfuse to track latency, cost and answer quality.
- Mar 2024 – Jan 2026
PowerX
Server Technical Analyst (Mid-level)
Built LangChain and Ollama flows connected to internal data and APIs, plus document RAG with nomic-embed-text and pgvector. Ran Linux infrastructure and high-availability databases, with server provisioning automated in Ansible.
- Mar 2023 – Sep 2023
Grupo Fleury
Infrastructure Analyst
Supported critical healthcare infrastructure, Active Directory and ServiceNow under strict SLAs.
- Aug 2018 – Jan 2020
Toor Tecnologia
Infrastructure Technician
Managed Linux and Windows servers, firewalls, Hyper-V and automation scripts.
Education
- In progress
Autonomous Agents and Knowledge Automation
Universidade Estácio de SáAI Agents, LLMs, RAG, Knowledge Engineering - Certifications
Linux Fundamentals
FIAP - Certifications
Technical Leadership
ApoioAG
Skills
- LLMs
- OpenAI (Responses API) · Claude
- Agents
- MCP (server and client) · Tool calling · LangGraph · LangChain
- RAG
- pgvector
- Observability
- Langfuse
- TypeScript
- Node.js · Express · Fastify · NestJS
- Python
- FastAPI · Flask
- APIs
- REST · SSE
- Queues
- BullMQ · Redis
- Web
- Next.js · React · Tailwind CSS
- Databases
- PostgreSQL (RLS) · Prisma · Redis
- Scraping
- Playwright
- APIs
- Stripe · QuickBooks · WhatsApp Cloud API · Google APIs
- Deploy
- Docker · Dokploy · Cloudflare
- Ops
- Linux · Ansible
- Tools
- Claude Code · Codex
- Method
- Spec-driven development