Role Description Seeking a Senior Fullstack Engineer to work at the intersection of frontend and backend development. In this role, the engineer will build and maintain both a React-based trading user interface and the TypeScript backend services that power high-performance trading platforms. The position involves full feature ownership—from crafting responsive, real-time interfaces to designing the APIs, data pipelines, and indexing solutions that feed them. - Frontend Development & Performance - Build and maintain the React-based trading user interface. - Implement dynamic, interactive interfaces for real-time data, including live order book updates, price feeds, and trade executions via WebSockets. - Own component architecture, state management, and responsive design. - Optimize rendering, minimize load times, and ensure smooth, low-latency interactions under heavy data loads. - Collaborate closely with product and design teams to translate complex requirements into intuitive user interfaces. - Backend Development & Data Infrastructure - Design and maintain TypeScript services, including REST APIs, WebSocket servers, and background services. - Design and deliver event-driven pipelines that ingest and process pricing and account data. - Own REST and WebSocket API contracts (OpenAPI / AsyncAPI specs), ensure smooth data flow between frontend and backend, and maintain API documentation. - Interact with on-chain data, index blockchain events, and bridge smart contracts with off-chain services. - Quality, Security & Collaboration - Develop and maintain comprehensive unit, integration, and end-to-end tests across frontend and backend systems. - Uphold continuous integration (CI) quality gates and rigorous code review standards. - Work closely with cross-functional teams, including product, design, and quantitative specialists. Qualifications - Experience: 6+ years of professional experience in fullstack software engineering. - Core Tech Stack: Deep expertise in TypeScript across both frontend and backend development. - Frontend: Strong experience with React and modern state management patterns (hooks, context, or equivalent). - Backend & APIs: Experience building and consuming REST APIs and WebSocket real-time data protocols; proficiency with Node.js or Bun server-side runtimes. - Databases & Caching: Experience with relational databases (PostgreSQL) and ORMs (Prisma or equivalent), along with familiarity with Redis or similar caching and pub/sub systems. - Engineering Standards: Commitment to writing clean, maintainable code, backed by solid experience in unit, integration, and end-to-end testing methodologies. - Communication: Clear and effective communication skills suitable for a fully remote, distributed, cross-functional team environment. Requirements - Domain Experience: 8+ years of fullstack experience, ideally within fintech, trading platforms, or real-time data applications. - Systems Languages: Experience with Rust or C++ for building high-scalability web services. - Web3 Integration: Familiarity with the Web3 frontend stack (e.g., ethers.js, viem, client-side wallet integrations). - Architecture: Knowledge of event-driven and messaging architectures (Kafka, Google Pub/Sub, or similar). - Observability: Experience with observability tools such as Datadog, Prometheus, or Winston logging. Benefits - 100% Remote: Fully remote work arrangement with global flexibility. - Competitive Compensation: Industry-aligned salary package reflecting senior-level experience. - Professional Growth: Opportunity to solve complex technical challenges at the cutting edge of finance and web technology.

• Diseñar arquitecturas técnicas detalladas y tomar decisiones críticas sobre frameworks, bases de datos y servicios cloud. • Liderar técnicamente equipos de desarrollo, resolviendo bloqueos complejos y realizando revisiones de código de alto nivel. • Definir estrategias de integración entre sistemas, diseñando APIs (RESTful/GraphQL) y protocolos de comunicación. • Diseñar infraestructuras de ML que contemplen el entrenamiento, versionado, monitoreo y re-entrenamiento de modelos. • Participar de manera activa en la codificación (20-30% del tiempo) en componentes críticos o complejos. • Establecer estándares de calidad técnica, estrategias de testing (unit, integración, performance) y observabilidad. • Mantener documentación detallada como Architecture Decision Records (ADRs) y diagramas de sistema. • Evaluar y recomendar nuevas tecnologías para mejorar la eficiencia del equipo.

• Liderar el desarrollo e implementación de modelos de IA escalables, optimizando rendimiento y costo. • Colaborar estrechamente con equipos multidisciplinarios para integrar soluciones de IA en sistemas robustos. • Analizar volúmenes masivos de datos para resolver problemas específicos de clientes mediante modelos predictivos. • Asegurar la mejora continua de los sistemas existentes para optimizar confiabilidad y eficiencia. • Integrar soluciones de IA con servicios de infraestructura en la nube para maximizar escalabilidad. • Investigar tendencias emergentes en IA y machine learning para su aplicación en proyectos estratégicos. • Documentar procesos técnicos complejos y comunicar innovaciones a diversos stakeholders.

• Configure, maintain, enhance, and support Workday HCM modules with a focus on Advanced Compensation and related functional areas. • Serve as the Functional Subject Matter Expert (SME) for Workday HCM and Compensation processes. • Configure and support Core HCM, Compensation, Advanced Compensation, Organization Management, and Employee Lifecycle Management modules. • Collaborate with HR, business stakeholders, and cross-functional IT teams to gather requirements and design scalable Workday solutions. • Analyze business processes and recommend system improvements to maximize Workday capabilities and operational efficiency. • Ensure Workday configurations align with business objectives, organizational policies, and compliance requirements. • Lead Workday release activities, including impact assessments, testing, validation, deployment, and post-release support. • Troubleshoot and resolve complex functional, configuration, and application issues. • Develop and maintain functional and technical documentation, including business requirements, configuration documents, technical specifications, test plans, user guides, and process documentation. • Stay current with new Workday features, releases, and industry best practices, and recommend adoption of relevant capabilities. • Manage multiple Workday enhancement projects, production support activities, and functional initiatives while ensuring timely delivery. • Provide leadership, guidance, and mentorship to consultants and team members. • Facilitate workshops, stakeholder discussions, solution reviews, and end-user knowledge transfer sessions.