Senior AI Full Stack Engineer
AI-native engineer
Available for hire
Years of
experience
8+ years
Experience
level
Senior
Available
for
Full-time, Part-time, Contract, Freelance
Senior Full Stack & AI Engineer with 8+ years of experience building scalable SaaS platforms, AI-powered applications, and cloud-native systems. Expert in React, Node.js, Python, AWS, and LLM integration, with a proven track record of delivering high-performance products used by thousands of users. I'm looking for senior engineering opportunities where I can leverage my full-stack and AI expertise to build innovative products and drive technical excellence.
Skills
JavaScript
CSS
Astro.js
TypeScript
React.js
Next.js
React Native
Svelte.js
NestJS
Vue.js
Nuxt.js
Node.js
Express.js
Tailwind CSS
Redis
Web sockets
GraphQL
Cypress.js
Docker
AWS
Angular.js
Opencv
GitLab
Strapi.js
REST
Kubernetes
Terraform
OpenAI
jQuery
D3.js
Expo.js
Jest
Vite.js
Gatsby.js
React Query
JWT
Socket.io
NextAuth
Material UI
Storybook
Ant Design
MERN stack
MEAN stack
MongoDB
PostgreSQL
SQLite
Git
GitHub
Figma
Prisma
CI/CD
Machine Learning
Stripe
PayPal
OAuth
Generative AI
Python
Go
Flask
Django
FastAPI
Languages
Employment History
Senior Full Stack Engineer – AI, Backend & Platform Architecture at
Nexus Data Solutions
Current
2022
-
Now
AI & Intelligent Systems
• Designed and implemented a production RAG (Retrieval-Augmented Generation) system for enterprise document intelligence, integrating structured databases, PDFs, and internal tools across 20+ data sources. Reduced average retrieval latency by ~55% through embedding optimization, chunking strategies,and vector index tuning.
• Built LLM orchestration pipelines using LangChain, supporting tool calling, memory management, and multi-step reasoning for AI assistants used in customer support, internal operations, and content workflows.
• Delivered AI chatbot systems with context persistence, role-based knowledge access, and fallback routing, handling ~10K daily interactions while improving support resolution time by ~45%.
• Created a controlled prompt configuration framework that allowed nontechnical teams to adjust AI behavior safely without impacting production stability.
Backend Architecture & Scalability
• Architected cloud-native microservices using Node.js, NestJS, Python, and Go, supporting peak loads of ~50K requests per second with horizontal scaling and graceful degradation under traffic spikes.
• Designed APIs consumed by web, mobile, and internal systems, applying contract-first development, versioning strategies, and backward compatibility to support continuous delivery.
• Implemented background processing and async workflows for AI inference, document ingestion, and analytics pipelines
Data, Observability & Reliability
• Built event-driven pipelines using Apache Kafka, processing hundreds of thousands of events per day for real-time analytics, audit logs, and system telemetry.
• Implemented ML model lifecycle workflows including versioning, staged rollouts, A/B testing, and automated quality monitoring for recommendation and prediction services.
• Optimized PostgreSQL performance using read replicas, query refactoring, indexing strategies, Redis caching, and connection pooling, achieving ~70% improvement in critical query paths.
• Implemented centralized logging, metrics, and distributed tracing with Datadog, significantly reducing mean time to detect and resolve production incidents.
Real-Time & Frontend Systems
• Built real-time communication features using WebSockets, including live chat, typing indicators, user presence, and message persistence, supporting 5,000+ concurrent users.
• Developed complex frontend features with React and TypeScript, including scheduling and booking interfaces with drag-and-drop interactions, conflict resolution, and timezone awareness.
• Created and maintained a shared React component library documented with Storybook, reducing UI inconsistencies and accelerating development across multiple products.
Delivery & Infrastructure
• Containerized applications using Docker and deployed to Kubernetes, enabling consistent environments and zero-downtime deployments.
• Built CI/CD pipelines to automate testing, security checks, and releases across multiple services and environments.
• Participated in on-call rotations, post-incident reviews, and system hardening efforts to improve long-term platform stability.
Special Tech Skills: Node.js, NestJS, Python, Go, React, TypeScript, LangChain, LLM APIs, Apache Kafka, PostgreSQL, Redis, WebSockets, Docker, Kubernetes, AWS, Datadog
Senior Full Stack Developer at
Pivot Analytics Corp
2020
-
2022
• Developed a real-time analytics platform processing ~2M events per day, combining React dashboards with backend APIs built in Node.js and Python.
• Built interactive data exploration tools with live updates, advanced filtering, and role-based access for enterprise users.
• Implemented ML-powered recommendation and scoring features using historical usage data, improving engagement by ~40%.
• Designed search and indexing solutions to support fast queries across tens of millions of records.
• Improved frontend performance through code splitting, memoization, and optimized state management, reducing page load times by ~45%.
• Designed reliable PostgreSQL schemas, replication strategies, and backup workflows to ensure data durability.
• Introduced automated testing practices across frontend and backend, improving regression safety and deployment confidence.
Special Tech Skills: React, Node.js, Python, PostgreSQL, Machine Learning, Data Analytics, Jest, Cypress, Real-Time Systems
Senior Full Stack Developer at
Vortex Technologies
2018
-
2020
• Designed and maintained a multi-tenant SaaS platform supporting over 1M daily active users, with strict data isolation and enterprise security requirements.
• Built frontend applications with React focused on usability, accessibility, and maintainability for complex business workflows.
• Implemented backend services in Node.js and Python, handling authentication, authorization, reporting, and third-party integrations.
• Delivered a natural-language data query interface that allowed business users to extract insights without writing SQL.
• Executed large-scale customer data migrations with near-zero downtime and strict data integrity guarantees.
• Managed AWS infrastructure using Terraform, enabling consistent, repeatable deployments across environments.
Special Tech Skills: React, Node.js, Python, PostgreSQL, AWS, Terraform, OAuth2,
JWT, SaaS Architecture
Full Stack Developer at
CloudCart Commerce
2016
-
2018
• Built full-stack e-commerce solutions supporting complex product catalogs, multi-currency pricing, and high-traffic customer journeys.
• Developed frontend applications using React, focusing on performance optimization and conversion-focused user experiences.
• Implemented backend services in Node.js to manage orders, payments, inventory, and customer data.
• Integrated secure payment gateways and transaction workflows with detailed error handling and monitoring.
• Applied frontend performance optimization techniques to reduce page load times and improve checkout completion rates.
• Built analytics and reporting tools to track user behavior, sales performance, and revenue trends.
Special Tech Skills: React, Node.js, JavaScript, Payment Gateways, Performance Optimization, E-Commerce Systems
Education
Bachelor of Science at
University of São Paulo
2011
-
2015