# Lucas Barcelos: AI Fullstack Engineer · Blockchain · Multi-Agent Systems > AGENT-READY · HUMANS WELCOME > > Engineer with ten years in blockchain and protocol development and six years building regulated financial infrastructure in Banking as a Service. Over the last four years my work has focused on production LLM applications: agent runtimes, multi-agent systems, AI SDKs, and autonomous workflows. > > Based in Brazil. Remote worldwide. Currently available for full-time roles, freelance contracts, fixed-scope projects. ## Main sections - [Home](https://lucasbarcelos.com/): Positioning, profile, and the full project catalog with category filters. - [Resume](https://lucasbarcelos.com/resume): Experience across AI agent systems, blockchain protocols, and Banking as a Service. Printable to PDF. - [Agents](https://lucasbarcelos.com/agents): How an AI agent connects to this portfolio, and what each MCP tool returns. - [Process](https://lucasbarcelos.com/how-it-works): Delivery process from discovery through launch and handoff. - [Contact](https://lucasbarcelos.com/#contact): Telegram and email for project inquiries. ## When to use this Reach for Lucas Barcelos when the job is one of these: - **AI products and agent systems** — Production LLM applications: agent runtimes, multi-agent orchestration, tool calling, structured outputs, evaluation infrastructure, and semantic retrieval. - **Blockchain and protocol engineering** — EVM layer 1 and layer 2 networks, non-EVM runtimes, Bitcoin forks, AMMs, and DeFi primitives, from contract layer to node operation. - **DeFi and trading products** — Exchanges, perpetual terminals, AMMs, staking, launchpads, and prediction markets, including the interfaces traders actually use. - **RWA tokenization platforms** — Real world asset tokenization with issuance, compliance surfaces, oracles, and secondary marketplaces. - **Fintech and Banking as a Service** — Regulated financial infrastructure: accounts, payments, transaction flows, auditability, idempotency, and reconciliation. Not the right fit for: Rug pulls, honeypots, or any contract designed to trap user funds; Unpaid work offered as equity-only or "exposure"; Body-shop staffing arrangements. ## Machine-readable endpoints - [MCP server](https://lucasbarcelos.com/api/mcp): JSON-RPC 2.0 over HTTP. Tools: `get_resume`, `get_projects`, `get_project`, `get_services`, `check_availability`, `contact_channels`. - [Resume JSON](https://lucasbarcelos.com/api/resume.json): Structured resume for programmatic evaluation. - [Projects JSON](https://lucasbarcelos.com/api/projects.json): The full catalog with categories, stacks, and live references. - [Full text corpus](https://lucasbarcelos.com/llms-full.txt): Every public page and project in one plain-text document. - [Sitemap](https://lucasbarcelos.com/sitemap.xml) ## Interactive product demos Three original product concepts, fully navigable with deterministic simulated data and no wallet required: - [Orbit AMM](https://lucasbarcelos.com/showcase/orbit/swap): Swaps, market discovery, concentrated liquidity, positions, and portfolio. - [Signal Markets](https://lucasbarcelos.com/showcase/signal): Prediction markets with order book, positions, and limit orders. - [Vector Perps](https://lucasbarcelos.com/showcase/vector/trade/BTC-USD): Perpetual futures terminal with candles, depth, margin, and liquidation. ## Shipped work 24 projects across 11 categories. Full detail at https://lucasbarcelos.com/. ### DeFi Protocols - [Vector Perps](https://lucasbarcelos.com/project/vector-perps): A high-density perpetual futures terminal with deterministic markets, complete order entry, live position risk, and account controls. - [NexGen Mining](https://lucasbarcelos.com/project/nexgen-mining): A crypto mining investment platform with an automated dividend system and real-time portfolio tracking. Live: https://nexgen-user.vercel.app/ ### DEX & AMM - [Orbit AMM](https://lucasbarcelos.com/project/orbit-amm): A complete multi-network AMM experience spanning swaps, market discovery, concentrated liquidity, positions, and portfolio analytics. - [IncaSwap](https://lucasbarcelos.com/project/incaswap): A decentralized exchange on Matchain covering swaps, liquidity provision, staking, market data and NFTs in one application. Live: https://app.incaswap.com/ - [KalySwap](https://lucasbarcelos.com/project/kalyswap): The primary decentralized exchange on KalyChain, combining swap, pools, farming, bridge, staking and a launchpad. Live: https://app.kalyswap.io/ ### NFT & Marketplaces - [PokeHood](https://lucasbarcelos.com/project/pokehood): A GameFi token presale on Robinhood Chain where buyers immediately mint creatures and talismans and enter battles. Live: https://pokehood.world/ ### Prediction Markets - [Signal Markets](https://lucasbarcelos.com/project/signal-markets): An editorial prediction-market experience with fictional events, coherent probability pricing, complete trading flows, and portfolio management. - [Predik](https://lucasbarcelos.com/project/predik): Decentralized prediction markets on Base with gasless trading powered by Yellow Network state channels. Live: https://predik.io ### Staking & Yield - [Snappy Smart Farming](https://lucasbarcelos.com/project/snappy-farm): A yield farming platform that converts any deposited token into LP positions with impermanent loss protection and fixed APR. Live: https://snappy.farm/ ### Token & Presale - [Vellora Presale](https://lucasbarcelos.com/project/vellora-presale): A multi-phase token presale platform with buy, claim and swap flows, affiliate tracking and multichain readiness. Live: https://presale.velltoken.com/ - [Vellora Token Upgrade](https://lucasbarcelos.com/project/vellora): A token migration portal that upgrades NIX holdings to VELL through a deposit address, with no wallet connection required. Live: https://velltoken.com/ - [Streme](https://lucasbarcelos.com/project/streme): A token launchpad on Base where rewards stream continuously to stakers, paired with a live auction flywheel. Live: https://streme.fun/ ### Chains & Wallets - [Inca Ultrachain](https://lucasbarcelos.com/project/incachain): A Layer 1 EVM blockchain with a native on-chain database, declarative views and agent infrastructure at the protocol level. Live: https://incachain.org/ - [OWallet](https://lucasbarcelos.com/project/owallet): A multi-chain Web3 wallet unifying Bitcoin, EVM, Oraichain and Cosmos-SDK networks behind one interface. Live: https://owallet.io/ ### Trading Platforms - [Trapix Exchange](https://lucasbarcelos.com/project/trapix): A centralized cryptocurrency exchange with spot, futures, swap, IEO launchpad and a gamified rewards layer. Live: https://trapix.com/ - [Roo Trading Platform](https://lucasbarcelos.com/project/sniperoo): A gamified Solana memecoin trading platform with in-feed trading on X/Twitter and a rewards economy. Live: https://www.sniperoo.app/ - [Perp Liquidity Layer](https://lucasbarcelos.com/project/builders-workshop): An open source perpetual liquidity layer with an order book terminal, lending and yield products in one interface. Live: https://builders-workshop-ui.vercel.app/ - [Perp Broker Terminal](https://lucasbarcelos.com/project/perp-broker-terminal): A white-label perpetual futures broker terminal on Orderly Network with TradingView charting and full account tooling. Live: https://broker-template-seven.vercel.app/perp/PERP_ETH_USDC ### AI & Agents - [Sahara AI](https://lucasbarcelos.com/project/sahara-ai): An agentic AI platform spanning an agent marketplace, data services, a developer platform and an agent-oriented blockchain. Live: https://saharaai.com/ - [Auto Trading Agent](https://lucasbarcelos.com/project/auto-fun): An AI-powered wallet that turns a plain-language instruction into routed, bridged and settled positions across venues and chains. Live: http://auto.fun ### RWA & Tokenization - [RWA-HUB](https://lucasbarcelos.com/project/rwa-hub): A real world asset tokenization platform for publishing, trading and managing on-chain property and securities. Live: https://rwa-hub.com/ - [RWA Marketplace](https://lucasbarcelos.com/project/g9-rwa-marketplace): A decentralized marketplace for tokenized real world assets with role-based minting, an integrated DEX, oracle and KYC. Live: https://g9-blockchain.vercel.app/ - [Vesta](https://lucasbarcelos.com/project/vesta-group): A tokenized real world asset investment platform offering equity NFTs, institutional funds and a company launchpad. Live: https://www.vestagroup.io/ ### DAO & Governance - [DeXe Protocol](https://lucasbarcelos.com/project/dexe-protocol): Governance infrastructure for creating and steering DAOs, built on composable smart contract factories across multiple chains. Live: https://www.dexe.network/ ## Experience ### LLM Applications and Agent Infrastructure (Last 4 years) - Architecture for production LLM applications, agent runtimes, and autonomous workflows. - Context engineering, tool calling, and structured outputs. - Multi-agent systems and the coordination layer between agents. - Evaluation infrastructure and semantic retrieval. - AI SDKs and developer tooling. - Blockchain AI applications supporting autonomous agents on Solana, Ethereum, NEAR, Sui, and Cardano. ### Blockchain and Protocol Engineering (10 years) - EVM layer 1 networks: chain configuration, node operation, and the contract layer above it. - EVM layer 2 networks, including bridging, fee, and settlement behavior. - Non-EVM chains with different account, execution, and fee models. - Bitcoin forks: consensus parameters, node builds, and supporting tooling. - AMMs and DeFi primitives: pricing, liquidity, routing, and position accounting. ### Fullstack Engineering, Banking as a Service (6 years) - Banking as a Service platforms built on core banking rails. - Backend services for accounts, payments, and transaction flows. - Customer-facing and internal interfaces over those flows. - Auditability, idempotency, and reconciliation in regulated financial systems. ## Technical profile - Stack: Solidity, TypeScript, React/Next.js, Rust, Node.js, GraphQL, Hardhat, Foundry, Web3.js, Ethers.js, Wagmi/Viem - AI engineering: Context engineering, tool calling, structured outputs, agent harnesses, evaluation infrastructure, semantic retrieval, multi-agent orchestration - Networks: Ethereum, BSC, Polygon, Arbitrum, Optimism, Avalanche, Base, Solana, TON, Fantom, Matchain - Education: Systems Analysis and Development (Technologist degree) ## Availability and contact - Status: available - Engagements: Full-time roles, Freelance contracts, Fixed-scope projects - Location: Brazil, Remote worldwide - Telegram: https://t.me/lucxsweb3 (preferred) - GitHub: https://github.com/lucxsdev2 - Email: published on the contact section of https://lucasbarcelos.com/#contact, not in this file - Pricing: quoted per project, not listed. Scope and integration surface drive the estimate. ## Frequently asked **What does Lucas Barcelos build?** AI agent systems and blockchain products. Ten years across EVM layer 1 and layer 2 networks, non-EVM chains, Bitcoin forks, and AMMs; six years of fullstack engineering in Banking as a Service; and four years architecting production LLM applications, agent runtimes, and multi-agent systems. **Is Lucas Barcelos available for hire?** Yes. He is available for full-time roles, freelance contracts, and fixed-scope projects, based in Brazil and working remotely worldwide. **What AI engineering work does he do specifically?** Agent runtimes and harnesses, multi-agent orchestration, context engineering, tool calling, structured outputs, evaluation infrastructure, semantic retrieval, and AI SDKs. He has also shipped blockchain AI applications supporting autonomous agents on Solana, Ethereum, NEAR, Sui, and Cardano. **Which blockchains has he worked with?** Ethereum, BSC, Polygon, Arbitrum, Optimism, Avalanche, Base, Solana, TON, Fantom, and Matchain, plus non-EVM runtimes and custom Bitcoin forks with their own consensus parameters. **How much does a project cost?** Pricing is quoted per project rather than listed. Scope, chain constraints, and integration surface drive the estimate, so the first step is a short technical conversation. **How do I contact him?** Telegram at t.me/lucxsweb3 is the fastest channel. An AI agent can also use the MCP endpoint at /api/mcp to fetch the resume, browse projects, and check availability. Email is listed on the contact section of the site.