Elias Vale

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

Skills

• Express.js
• FastAPI
• Python
• Prompt Engineering
• CSS3
• JavaScript
• MongoDB
• Node.js
• Tailwind CSS
• PostgreSQL
• React
• React Native
• TypeScript
• AWS
• Next.js
• Test Automation
• Docker
• Kubernetes
• LangChain
• GraphQL
• Redux
• Terraform
• System Design
• WebSockets
• Material UI
• JWT
• Microservices
• Google Cloud Platform
• REST APIs
• CI/CD
• Security best practices
• HTML5
• Technical Leadership
• Azure
• Distributed Systems
• Performance Tuning
• RAG
• OpenAI
• Vector Databases
• Software Architecture
• Agile
• SQL Optimization
• Design Patterns
• Redis
• Elasticsearch
• LLMs
• Monitoring
• AI Agents
• GitHub Actions
• NestJS
• Embeddings
• Semantic Search
• OAuth2
• RabbitMQ
• TanStack Query
• LlamaIndex
• Code reviews
• Logging
• Function Calling
• Anthropic