Marcelo Ceryno Plaza

Sales, Channels & AI‑Driven IT Consultant • Campinas, SP, Brazil

I connect enterprise buyers, partners, and modern AI stacks—turning complex tech into outcomes people can feel.

Professional summary

Profile: Sales and marketing leader with 30+ years in enterprise IT across hardware, software, and services. I specialize in partner/channel growth, enterprise accounts, and solution advisory for financial services—now blending that go‑to‑market depth with data, AI, and automation to deliver pragmatic wins.

Strengths: Partner and account management, pipeline creation, financial and pricing analysis, team leadership, and translating complex technology into clear, confident decisions for executives and legal stakeholders.

Languages: Portuguese (native), English (fluent), Spanish (fluent)

Core competencies

Go‑to‑market

  • Channels: Partner development, value‑added resellers, co‑marketing funds
  • Enterprise sales: Financial sector focus, C‑level orchestration, complex deals
  • Forecasting: Pipeline, campaign planning, coverage modeling

Data & AI

  • Analytics: Data analysis with Python, Pandas, NumPy, visualization
  • LLMs: Prompt engineering, local and API models, RAG, agents
  • Workflows: n8n automations, AI toolchains, evaluation loops

Enterprise IT

  • Infra: Docker, VPS, networking (VPN, LDAP), email & archiving
  • Apps: WordPress, CRM ecosystems, data warehouse integration
  • Security: IT forensics support, risk analysis platforms

Technical stack

Languages & frameworks

JavaScript Python Next.js React HTML CSS Prisma

AI & ML

Prompt engineering LangChain LlamaIndex RAG AI agents Local LLM OpenAI Mistral Llama Ollama OpenWebUI ComfyUI Stable Diffusion Flux TensorFlow Scikit‑learn Matplotlib Jupyter

Automation & integration

n8n APIs Webhooks ETL CRM Data warehouse

Data & storage

PostgreSQL MySQL SQL

Dev & ops

Docker VPS Git GitHub VS Code

Web & growth

WordPress SEO Next.js SSR/ISR Analytics

Professional experience

IT Forensics Specialist — Self‑employed

2017–Present
  • Court expertise: Delivered IT forensic and security consulting as a court‑appointed expert for legal cases involving data, systems, and digital evidence.
  • Clarity for decisions: Produced structured findings and reports that translate technical complexity into defensible, non‑ambiguous insights.
  • Risk & controls: Guided counsel and stakeholders on controls, retention, and chain‑of‑custody considerations.

IT Consultant — Self‑employed

2008–2017
  • Strategic advisory: Led assessments and roadmaps for infrastructure, integration, and modernization initiatives.
  • Solution design: Connected vendor ecosystems, channels, and delivery partners to de‑risk implementation.
  • Value focus: Linked technology decisions to financial and operational outcomes for executives.

Partner Business Manager — HP Brazil

2006–2008
  • Channel growth: Managed partner portfolios across value‑added channels, aligning targets, enablement, and incentives.
  • Planning: Orchestrated campaign planning, forecasting, and MDF/co‑funding to drive pipeline coverage.
  • Scale: Supported partners across different stages of maturity to accelerate solution attach.

Account Executive — HP Brazil

2005–2006
  • Enterprise sales: Sold hardware and software solutions to financial services clients, coordinating pre‑sales and delivery.
  • Solution mapping: Matched workloads and SLAs with infrastructure capabilities and licensing models.

Account Manager — Sun Microsystems Brazil

1997–2004
  • Territory leadership: Managed financial industry accounts and regional territories with a channel‑led motion.
  • Key logos: Banco do Brasil, Banco Itaú, Santander, Bradesco, Bovespa, BMF.
  • Channel orchestration: Coordinated partners to deliver customized client solutions.

Sales Roles — IBM Brazil Ltd.

1990–1997
  • Enterprise focus: Targeted large financial clients with solution‑led selling.
  • Executive relationships: Cultivated C‑suite and senior stakeholder alignment to advance adoption.

Selected capabilities with modern AI

Automation & agents

  • Orchestration: Build n8n workflows that blend APIs, webhooks, and LLM steps.
  • Agents: Prototype task‑oriented agents with tool‑use, memory, and guardrails.
  • Evaluation: Set up prompt iteration and output scoring loops.

RAG & retrieval

  • Pipelines: Construct RAG flows with chunking, embeddings, and re‑ranking.
  • Frameworks: Use LangChain and LlamaIndex with local or API models.
  • Docs & data: Ingest PDFs, HTML, and databases with metadata strategies.

Local & cloud models

  • Local stacks: Run models through Ollama and OpenWebUI with Docker.
  • APIs: Integrate OpenAI, Mistral, and Llama endpoints with fallbacks.
  • Image: Pipeline text‑to‑image via Stable Diffusion and ComfyUI; explore Flux.

Web & growth

  • Next.js: Build SEO‑aware sites using SSR/ISR and API routes.
  • WordPress: Implement themes, performance tweaks, and content workflows.
  • Analytics: Track funnels and queries to inform content and automation.

Education & certifications

Keywords for ATS

Enterprise Sales Partner Management Channel Marketing Forecasting Pricing Python JavaScript Next.js React Docker n8n LangChain LlamaIndex RAG AI Agents Ollama OpenWebUI Stable Diffusion ComfyUI Flux