Resume / 2026 edition open

Gabriel Abreu

Summary

15 years working in marketing. The last five years I apply that taste as a GTM Engineer. I find what's slowing a team down and build the system that fixes it.

Gabriel Abreu
Title
GTM Engineer
Forward Deployed AI Engineer
Location
Rio de Janeiro, Brazil
Portfolio
gabeonchain.com
Email
gabchessonchain@gmail.com
Experience

Where I've done the work, in reverse

AIGTM Engineer & SocialsJun 2025 → Jun 2026

Octant, Golem Foundation

Remote · Golem Foundation
  • Built analytics and cohort analysis that informed the V1-to-V2 campaign, driving 91.9% migration among active allocators (260 unique wallets).
  • Helped grow @octantapp to 13K followers, 9M impressions, and 5% engagement in nine months, on protocol explainers and developer education. Three of us posted; I ran strategy, formats, and distribution.
  • Redesigned the YouTube format and how videos got distributed. Views went up about 3x.
  • Built the AI system that ran our daily content and market research, with a human signing off at every step. 27 of 30 content cycles passed review, and the morning market brief hit 97% accuracy.
  • Used Linear and GitHub to connect customer and market research straight to roadmap and launch decisions, keeping marketing and engineering aligned.
2025 → 2026
MarketingProduct Marketing ManagerJan 2024 → Jun 2025

noder.

Blockchain infrastructure · Remote
  • Ran 100+ PLG experiments on the onboarding funnel. Onboarding conversion moved from 30% to 70% and signups grew 100% year over year, my own tracked numbers. Each test targeted one buyer type, node operators or developers.
  • Owned positioning and GTM for the developer and node-operator products as noder.'s only PMM for 18 months. Every position came out of customer calls and ecosystem research.
  • Built the competitive-intelligence practice. When the market moved, the messaging and the sales deck moved with it, usually the same week.
  • Produced 30+ GTM assets, from docs and landing pages to pitch decks, that sales used to close multi-million-dollar infrastructure deals.
2024 → 2025
MarketingGhostwriter for André PortilhoMay 2024 → Jan 2025

BTG Pactual

Head of Digital Assets, Brazil's largest investment bank · Freelance · Hybrid
  • Set the ICP and content strategy for Brazil's largest investment bank as it entered crypto, from persona research and competitive analysis.
  • Built a weekly research and analytics system tracking competitors, audience signals, and performance by topic and format.
  • Ghostwrote for the Head of Digital Assets: institutional explainers and CT-native threads that turned financial and crypto mechanics into copy an executive could read once.
2024 → 2025
MarketingSocial Media ManagerJan 2023 → Jan 2024

Ankr

Web3 infrastructure protocol · Full-time · Remote
  • Helped grow the account past 300K followers as part of the marketing team, owning daily social and the editorial voice. Reported to leadership weekly, and audience response set what we published next.
  • Watched X and Discord until the same dozen technical questions kept surfacing, reported them to engineering, and rebuilt the education around them. Mostly RPC nodes and DePIN.
2023 → 2024
PMProduct Manager, Market IntelligenceJul 2019 → Jan 2023

Grupo Flow

Market intelligence · Part-time · Remote
  • Built the market-intelligence function from zero. Ran weekly competitive and customer briefings that Leadership, Sales, Product, and Communications used to set priorities. No formal authority over any of them.
2019 → 2023
MarketingGrowth, Content & Writing2011 → 2019

Early career · agencies & brands

Rio de Janeiro · full-time, agency & freelance
  • Eight years in growth, content, and copywriting at R&D Marketing Digital and Arte de Viver Brasil. Got 50+ client articles onto Google's first page with SEO.
2011 → 2019
Builds & security research

What I've built, on my own time

BuilderIn parallel with full-time roles2025 → Now

Independent build track

Rio de Janeiro
  • Tixmancer (main focus): an AI agent buys a real event ticket end to end, paid and settled onchain over x402. Base Batches 004 application submitted.
  • Security research: high-severity bug in Anchor, the framework most Solana programs run on, and a fund-lockup bug in Ern Protocol, found via Immunefi. Two bounties, both paid.
  • Hedwig: one place for Solana apps to control who can do what, instead of every team building it again. Solana Foundation grant.
  • Prospector: forkable outbound lead pipeline. Two scrapers I wrote, Clay enrichment over MCP, a human approval gate. The proving run: 100 verified leads in 48 hours. Open source.
  • Augments: 9 packaged AI systems with playbooks, hooks, tests, and a README a stranger can follow. Prospector open, 8 private.
  • Silvia: a chat-first ordering assistant for older adults. 50+ people completed an order.
  • Agentic AI systems, harness design: 27 agents run the daily work, human approval gate at every step.
  • Grew @gabe_onchain, my own account, from zero to 5K followers under a content rev-share, 1,000 verified. Same distribution work I do for brands, but the results are mine alone.
2025 → Now
Skills

AI systems, Marketing Skills

FDE / applied AI

PythonSQLbig dataRAGembeddingsvector databasesMCPagentsLangGraphevalshuman-in-the-loopprompt engineeringLLM APIsTypeScriptJavaScriptRustSolidityobservabilitystructured outputs

Python, SQL, big data, RAG, embeddings, vector databases, MCP, agents, LangGraph, evals, human-in-the-loop, prompt engineering, LLM APIs, TypeScript, JavaScript, Rust, Solidity, observability, structured outputs, product marketing, growth, content, SEO, AEO, writing, editing, go-to-market, positioning, GTM Engineer, Go-To-Market Engineer, AI GTM Engineer, Forward Deployed Engineer, Forward Deployed AI Engineer

Data analyst

ExcelPowerBIData GovernanceData Visualization

Marketing Skills

product marketinggrowthcontentSEOAEOwritingeditinggo-to-marketpositioninglaunchescompetitive intelligencecustomer research

Tools & platforms

Claude, Codex & CursorHubSpot & SalesforceGoogle Analytics, Dune & PostHogLinear & GitHubNotionRAGAS, inspect-ai & pgvectorCrunchbase & ClutchClay & ApifyGrok, n8n, Zapier, Railway & JamRunway, Higgsfield & DescriptSupabase, Docker & SandcastleReplit & Context7Firecrawl & Mobbin
Certifications

Selected credentials, recent first

AEO Masterclass: AI Search Beyond SEO · Mostafa ElBermawy / Maven2026
Claude Certified Architect, Foundations · Anthropic2026
AI Agents Course · Hugging Face2025
CS50's Introduction to Programming with Python (CS50P) · Harvard / edX2025
Harvard Course: Rhetoric, The Art of Persuasive Writing and Public Speaking2024
Copywriting e Estratégias de vendas · Beto Altenhofen2023
SEO Masterclass · Rock Content2022
Super Brain · Jim Kwik2021
Storytelling · Roi Gal-Or2020
Education

Formal

MBA

Applied AI Software Engineering

UNIPDS · in progress. LLMs, RAG, MCP, autonomous agents, LangGraph, evals, human-in-the-loop, AI system architecture, fine-tuning, security and governance.

In progress
MBA

Process & Project Management

Universidade Veiga de Almeida (UVA) · Focus: Scrum, Agile Methodologies & PMI

2025 → 2026
MBA

Análise de Dados Impressionadora

Hashtag Treinamentos · Focus: Excel, PowerBI, Python, SQL

2024 → 2025
MBA

Strategic Sales & Relationship Management

Descomplica

2022 → 2023
Bachelor's

Communications & Film

Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio)

2011 → 2016
Languages

Read, write, ship in both

Portuguese · nativeBR
English · fluentUS / UK
Contact

Four channels, one inbox gets answered fastest

Emailgabchessonchain@gmail.com LinkedInin/gabeonchain X@gabe_onchain GitHubgabchess
© 2026, Gabriel Abreu · Resume last updated 2026
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