Luiz Fernando

Remote

• Used a full AI workflow with Claude, Cursor, and Codex from discovery to production, including requirement shaping, spec drafting, implementation, review, and release readiness.
• Made targeted backend adjustments with an AI assistant to help the team diagnose issues faster and unblock delivery.
• Improved onboarding conversion by designing and shipping new pages and UX upgrades in onboarding flows that had been largely untouched for more than five years.
• Owned and maintained critical onboarding journeys from sign-in through post sign-in, including identity, compliance, and policy-driven user states.
• Built and scaled Storybook-based Unified Onboarding documentation and scenario coverage, with reusable stories for success, error, regional, and compliance variants to reduce regressions and speed delivery.

Remote

• Worked directly with product and stakeholders to plan and architect MoneyGram's non-custodial wallet: activation, custody, KYC, and USDC ramps for remittance and digital asset use cases.
• Shipped activation and custody on multi-signature wallets, with a backend that signs and pays for transactions so remittance users can move USDC under a non-custodial model.
• Built KYC guardrails into activation and transfers to block bad actors before they reach the wallet or the ramps.
• Delivered USDC on-ramp and off-ramp through Stellar Anchors, covering settlement edge cases across fiat, USDC, and the chain.
• Researched onboarding and account workflows in Rust and Soroban to evaluate more secure and scalable designs for later platform capabilities.
• Coached engineers through pair and mob programming and kept implementation order aligned with the stakeholder roadmap.

Remote

• Contributed to the Fuel open-source wallet while the protocol and the developer surface were both still moving, using React, TypeScript, GraphQL, Playwright, and Jest.
• Tightened design-system components so wallet connection and transaction flows shared one interaction model.
• Clarified Fuel TypeScript SDK paths for talking to a Fuel node, the main friction for developers integrating from outside the core team.
• Strengthened automated coverage around transaction flows so regressions surfaced before release.

Remote

• Led the team that built Jump DeFi, a decentralized exchange on NEAR, including the React trading interface, Node.js services, and Rust contracts for wallet connection, swaps, and transaction feedback.
• Built the AMM with staff reviewers who checked the contracts for vulnerabilities and audited them before launch.
• Built the swap router that executes swaps across market contracts when liquidity is split between pools.
• Built the staking and launchpad mechanism: users stake and receive launchpad tickets they can use for new listings.
• Led estimation, prioritization, and communication between product and engineering through launch.

Remote

• Built Sense Chat, a blockchain messaging app on EOS, with React Native, WebRTC, EOS JS, and TypeScript.
• Protected message contents with elliptic-curve encryption on a public account ledger.
• Shipped chat and WebRTC calls where key handling and delivery reliability had to work as one flow.
• Iterated the chat experience under encryption and decentralized delivery constraints.