2-paragraph first-person bio, friendly tone…

Lucas Oliveira

2-paragraph first-person bio, friendly tone…

Available to hire

2-paragraph first-person bio, friendly tone

Skills

Experience Level

Node.js
Expert
JavaScript
Expert
PostgreSQL
Expert
AWS
Expert
Docker
Expert
Python
Expert
Redis
Expert
TypeScript
Expert
GraphQL
Expert
Kubernetes
Expert
Elasticsearch
Expert
MongoDB
Expert
Go
Expert
See more

Language

Portuguese
Fluent
English
Fluent

Work Experience

Senior Full Stack Engineer – AI, Backend & Platform Architecture at Nexus Data Solutions AI & Intelligent Systems
October 1, 2022 - Present
Delivered LLM-powered features including chatbots with context persistence, role-based knowledge access, and fallback routing; handled ~10K daily interactions while improving support resolution time by ~45%.
Senior Full Stack Engineer – AI, Backend & Platform Architecture at Nexus Data Solutions AI & Intelligent Systems
December 2, 2020 - May 2, 2022
Designed and implemented a production Retrieval-Augmented Generation (RAG) system for enterprise document intelligence, integrating structured databases, PDFs, and internal tools across 20+ data sources.
Senior Full Stack Developer at Vortex Technologies
October 1, 2018 - April 1, 2020
Designed and maintained a natural-language data query interface enabling business users to extract insights without SQL; migrated large customer data with near-zero downtime; managed AWS infrastructure using Terraform.
Senior Full Stack Developer at Vortex Technologies
November 1, 2016 - May 1, 2018
Architected and maintained a multi-tenant SaaS platform for enterprise customers; led data pipelines and analytics; integrated secure payments and OAuth; optimized front-end using React/Next.js and back-end using Node.js and Python.

Education

Bachelor of Science in Software Engineering at University of São Paulo
June 1, 2011 - May 1, 2015
Bachelor of Science in Software Engineering at University of São Paulo
June 1, 2011 - May 1, 2015

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Professional Services, Media & Entertainment, Computers & Electronics, Other

Skills

Experience Level

Node.js
Expert
JavaScript
Expert
PostgreSQL
Expert
AWS
Expert
Docker
Expert
Python
Expert
Redis
Expert
TypeScript
Expert
GraphQL
Expert
Kubernetes
Expert
Elasticsearch
Expert
MongoDB
Expert
Go
Expert
See more

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