Daniel Vilela

• Architected and built the core loan-sizing engine powering a fintech lending product.
• Owned triage and resolution of high-priority production incidents through observability and log-driven debugging.
• Leveraged modern AI-assisted engineering workflows, including Claude Code and Codex, to accelerate implementation, iteration, and delivery.
• Built production-grade product features with modern TypeScript infrastructure, including Next.js, Shadcn UI, NeonDB, and Inngest.
• Collaborated with distributed leadership on product and technical strategy in a fast-moving startup environment.

• Built and scaled customer-facing commerce features for one of Europe's largest e-commerce platforms using a modern TypeScript full-stack architecture.
• Implemented payment integrations including Stripe, Klarna, Primer.io, Hyperswitch, and HSA / FSA payment flows with Flex.
• Integrated TaxJar tax automation workflows to support accurate multi-region checkout calculations.
• Architected integrations between the Next.js storefront and Payload CMS, including custom Payload plugins published to npm.
• Built backend microservices using Node.js and Bun with Hasura, Drizzle ORM, and service-oriented architecture patterns.
• Implemented ticket classification services using the OpenAI API to automate internal support workflows.
• Added Apple Wallet and Google Wallet integrations for generic passes and order tracking experiences.
• Maintained high code quality through automated testing practices with Jest and Bun test tooling.

• Led migration of a large-scale React / Redux monolithic application to a micro-frontend architecture using Webpack Module Federation.
• Contributed to a B2B logistics platform connecting Rivian with suppliers across a complex multi-team engineering environment.
• Worked within the production support workflow to diagnose and resolve critical application issues impacting sellers and business operations.
• Collaborated across a 60+ engineer organization spanning multiple teams to deliver scalable frontend platform improvements.

• Worked with CoderPad to improve the usability and responsiveness of its browser-based programming environment.
• Built and refined responsive UI behavior for a complex IDE-like interface supporting multiple layouts, rich controls, coding exercises, and integrated console workflows.
• Contributed to product improvements involving screening question delivery, programming language switching, and interactive assessment experiences.
• Collaborated in a client-facing delivery environment to ship improvements for a high-traffic developer product.

• Architected and implemented core platform integrations using Hasura, GraphQL, and SuperTokens for authentication and backend orchestration.
• Built the mobile application from scratch using Flutter, owning architecture and implementation from the ground up.
• Developed customer-facing web applications using React, Next.js, TypeScript, React Query, and Tailwind CSS.
• Built backend services and event-driven infrastructure on AWS using Lambda, SQS, S3, Serverless Framework, and Node.js.
• Contributed across the full product stack in a high-ownership engineering role spanning web, mobile, backend, and platform infrastructure.

• Developed the web platform using React, Redux, Material UI, and REST APIs, building complex data-driven interfaces with asynchronous workflows and data visualization.
• Built backend services in Go using Gin, JWT authentication, microservices architecture patterns, and supporting infrastructure integrations including Elasticsearch.
• Worked across multiple data technologies including DynamoDB, MySQL, CassandraDB, and Elasticsearch.
• Fully built the cross-platform mobile application for iOS and Android using Flutter, REST APIs, and the BLoC state management pattern.
• Delivered high-quality mobile experiences with strong attention to UI implementation and design fidelity.

• Delivered software consulting and product development for startups and client projects across web, mobile, and IoT domains.
• Built e-commerce platform features for client projects using C#, Razor, SQL Server, jQuery, and JavaScript.
• Architected and fully developed iOS and Android applications for IoT and product ventures, integrating Bluetooth, Wi-Fi, camera, Firebase Authentication, and Cloud Firestore workflows.
• Designed and delivered custom software products for clients and independent ventures, including early-stage digital products and health-focused platforms.
• Began development of independent product initiatives that later evolved into D-Fit.

• Developed firmware for embedded cellular and satellite vehicle tracking devices in C for automotive telematics applications.
• Implemented the full OBD-II vehicular diagnostics stack in embedded environments, including CAN and K-Line communication across ISO 15765, ISO 9141, ISO 14230, and SAE J1979 protocols.
• Developed major portions of the J1939 communication stack for heavy-duty vehicle systems.
• Built low-level firmware components and device drivers for external peripherals across constrained embedded hardware platforms.
• Worked extensively with 8-bit and 32-bit microcontrollers, Freescale / NXP toolchains, and industrial communication protocols including RS-232, RS-485, I2C, SPI, and CAN.
• Contributed to the company's flagship product firmware, including architecture, implementation, code review, and ongoing maintenance.

• Developed embedded software in C for energy measurement devices.
• Worked with ZigBee networking using Texas Instruments' Z-Stack framework on the CC2531 microcontroller platform.
• Contributed to embedded communication workflows involving USB connectivity, including HID and virtual COM interfaces for device-to-PC communication.

MBA - Business Strategy and Economic Management

B.Sc., Control and Automation (Mechatronics) Engineering

Advanced English and Conversation