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Elias Vale

Senior AI Full Stack Engineer

São Paulo, State of São Paulo, Brazil

@elias_vale

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About

Senior AI Full Stack Engineer with 8+ years of experience building distributed backend systems, AI-powered applications, and high-performance web platforms. Specialized in scalable APIs, cloud-native microservices, React applications, and production AI integrations including LLMs, RAG, semantic search, and workflow automation.

Experience

Senior AI Full Stack Engineer - Backend & Platform Architecture

Azumo · San Francisco, CA, US

Oct 2022 – Jun 2026

AI Platform & Intelligent Systems • Designed and implemented production Retrieval-Augmented Generation (RAG) services combining enterprise documents, relational databases, and internal APIs to provide contextual AI responses while maintaining data isolation and permissionaware retrieval. • Built reusable LLM orchestration services supporting prompt templates, tool invocation, conversation memory, structured output validation, and fallback strategies, enabling multiple AI features to share a common inference platform. • Developed automated document ingestion pipelines for PDFs, Office documents, and knowledge-based content using embedding generation, semantic chunking, metadata extraction, and vector indexing. • Implemented evaluation workflows for AI responses, including prompt versioning, response scoring, hallucination detection, and regression testing before production deployment. • Integrated OpenAI and Anthropic models through a provider abstraction layer, allowing model switching without affecting downstream application logic. Backend & Platform Engineering • Designed backend services using Python, FastAPI, Node.js, and TypeScript following domain-driven architecture and RESTful API best practices. • Built asynchronous processing pipelines using Redis queues and background workers to execute document processing, AI inference, email generation, and long-running workflows without impacting user-facing response times. • Designed secure authentication and authorization using JWT, OAuth2, and role-based access control across multi-tenant applications. • Improved PostgreSQL performance through query analysis, indexing strategies, connection pooling, and caching, significantly reducing response times for high-frequency endpoints. • Implemented distributed caching with Redis for AI responses, user sessions, and frequently accessed application data to improve overall platform responsiveness. Frontend & User Experience • Developed React and Next.js applica
Senior Full Stack Developer - Data & AI Products

Q42 · Amsterdam, Netherlands

Dec 2020 – May 2022

• Designed scalable web applications using React, TypeScript, and Node.js for enterprise clients across healthcare, logistics, and digital product domains. • Developed backend services responsible for user management, analytics, reporting, and third-party integrations while maintaining clear API contracts and service boundaries. • Built intelligent search and recommendation capabilities using machine learning models, improving search relevance and personalized user experiences. • Optimized frontend rendering performance through lazy loading, component memorization, efficient state management, and code splitting, reducing application load times and improving Core Web Vitals. • Designed PostgreSQL schemas supporting high-volume transactional workloads while maintaining data consistency and scalability. • Collaborated closely with UX designers and product managers to transform business requirements into production-ready features delivered through Agile development cycles. • Automated testing using Jest, Cypress, and integration testing frameworks to improve deployment confidence and reduce regression issues. • Contributed to Kubernetes deployments, infrastructure automation, and CI/CD pipelines supporting continuous software delivery across cloud environments
Full Stack Software Engineer

Venturus · Campinas, São Paulo, Brazil

Oct 2018 – Apr 2020

• Developed enterprise web applications using React, JavaScript, and Node.js for clients in retail, financial services, and industrial automation. • Designed RESTful APIs integrating ERP systems, third-party platforms, and relational databases while implementing authentication, authorization, and audit logging. • Modernized legacy applications through incremental refactoring, component standardization, and API redesign, improving maintainability and reducing technical debt. • Built reusable frontend component libraries and internal development tools that standardized implementation across multiple projects. • Optimized SQL queries, backend services, and frontend rendering to improve application responsiveness under increasing user workloads. • Implemented unit, integration, and end-to-end testing while participating in peer reviews, release planning, and production support activities.

Education

Bachelor of Science in Software Engineering

Universidade do Oeste Paulista (UNOESTE)

Computer Science · Jun 2011 – May 2015

Elias Vale

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