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

• Built full-stack fintech and blockchain features for the MoneyGram non-custodial wallet ecosystem serving remittance and digital asset use cases.
• Delivered USDC on-ramp and off-ramp experiences on Stellar, covering transactional flows, edge cases, and integration touchpoints across services.
• Researched onboarding and account workflows using Rust and Soroban to evaluate secure and scalable alternatives for future platform capabilities.
• Coached engineers through pair and mob programming sessions and collaborated with senior stakeholders on roadmap priorities and implementation sequencing.

Sao Paulo, Brazil (Hybrid)

• Led delivery of a no-code platform for building AI agents, coordinating backend, frontend, and integration efforts across multiple product surfaces.
• Architected backend services with Bun and ElysiaJS with strong type-safety and clear contracts to improve reliability and development speed.
• Implemented integrations with WhatsApp Business, Instagram, Make, and e-commerce platforms to enable omnichannel automation for customers.
• Supported and evolved both web and mobile clients (React, Vite, React Native) while partnering closely with product and design teams on UX quality.

Remote

• Contributed to the Fuel open-source wallet using React, TypeScript, GraphQL, Playwright, and Jest in a fast-moving developer tooling environment.
• Enhanced Fuel UI design system components and improved consistency across wallet flows and shared interaction patterns.
• Improved the Fuel TypeScript SDK usability for blockchain node interactions, making integration paths clearer for external developers.
• Strengthened test reliability and code quality through better automated coverage and maintainable architecture decisions.

Remote

• Spearheaded development of Jump Finance, a decentralized exchange (DEX) on the NEAR blockchain.
• Built React-based trading interfaces with clear UX for wallet connection, swaps, and transaction feedback.
• Implemented Node.js backend services and Rust smart contracts to support secure and efficient transaction processing.
• Led estimation, prioritization, and cross-team communication between product managers and engineers to keep delivery on track.

Remote

• Built internal team-building and roadmap tools with React, TypeScript, Node.js, GraphQL, and Go for organization-wide planning needs.
• Delivered release-planning visibility across products including Valorant, TFT, and League of Legends through robust internal platforms.
• Shipped user-facing and internal workflows focused on clarity, reliability, and predictable cross-team collaboration.
• Partnered with cross-functional stakeholders to align delivery plans, technical scope, and product objectives.

Remote

• Delivered production-ready software for international clients, including Riot Games, in highly distributed team environments.
• Contributed across frontend and backend stacks using React, Node.js, GraphQL, and Go depending on client and product needs.
• Worked effectively across multiple time zones with strong async communication and clear ownership of deliverables.
• Maintained high quality standards through collaborative reviews, iterative releases, and structured problem solving.

Sao Paulo, Brazil

• Led engineering for educational financing and course-purchase platforms with direct impact on acquisition and conversion journeys.
• Built credit application and checkout flows with TypeScript, Node.js, React, and PostgreSQL for reliable end-to-end operations.
• Improved product usability and flow consistency by collaborating closely with product and design stakeholders.
• Mentored engineers through planning, technical guidance, and structured code reviews to improve team output and confidence.

Sao Paulo, Brazil

• Developed fintech back-office systems for payment reconciliation in benefits-card operations with high operational accuracy needs.
• Built digital banking mobile features with React Native, including balances, wire transfers, and payment experiences.
• Created shared component libraries for React and React Native to standardize implementation across products.
• Built utility libraries for JavaScript and TypeScript to reduce duplicated logic and improve maintainability.

Remote

• Built Sense Chat, a blockchain-based messaging app with React Native, WebRTC, EOS JS, and TypeScript.
• Implemented secure messaging with elliptic-curve encryption to protect privacy and user communications.
• Designed and shipped communication features for a decentralized context with strong reliability requirements.
• Balanced product speed and security concerns while iterating on user-facing chat experiences.

Sao Paulo, Brazil

• Built scalable web applications with Node.js, React, and GraphQL for startup and enterprise use cases.
• Developed backend queue automation with Node.js, Puppeteer, and Flow for high-volume operational processing.
• Created a React and TypeScript analytics client for App Store and Google Play review insights.
• Helped improve performance and observability of data-heavy workflows used by product teams.

Sao Paulo, Brazil

• Developed event and hackathon platform features with React, Flow, Apollo, and Node.js.
• Shipped product capabilities on top of a mixed modern and legacy architecture.
• Supported a legacy C# .NET Core backend while maintaining feature delivery velocity.
• Maintained compatibility and performance across older services and newer platform modules.

Sao Paulo, Brazil

• Built enterprise web and mobile products with React Native, GraphQL, Node.js, and Relay.
• Delivered a Natura sales-force application and an airline ticketing mobile app with TypeScript, Redux, and Redux-Saga.
• Contributed to a feedback and 360-degree analysis platform used by HR teams for performance processes.
• Worked across multiple client projects, adapting quickly to different domains and technical constraints.

Sao Paulo, Brazil

• Built internal web applications with C# .NET and SQL Server for logistics operations and internal business workflows.
• Migrated legacy VBA applications to modern C# architecture, improving maintainability, reliability, and long-term scalability.
• Automated manual workflows to reduce spreadsheet-heavy processes and increase operational efficiency.
• Collaborated directly with business teams to translate operational pain points into practical software solutions.

Sao Paulo, Brazil

• Administered Linux servers and supported daily infrastructure operations in an enterprise environment.
• Automated recurring operational tasks with shell scripting to reduce manual intervention.
• Helped operate network traffic monitoring systems and support service reliability efforts.
• Developed foundational systems knowledge in administration, permissions, troubleshooting, and automation.

Sao Paulo, Brazil

• Provided technical support for internal users, systems, and workstation/software issues.
• Managed account and access requests and supported day-to-day internal IT operations.
• Resolved connectivity and environment issues with focus on clear communication and user support quality.
• Built a strong foundation in enterprise support, troubleshooting, and problem-solving discipline.