Logo
Oscar – AI agent development, AI API integration, AI telemetry, experts in Lemon.io

Oscar

From Colombia (UTC-5)flag

AI Engineer|Senior
Tech lead
Prompt Engineer
AI Agent Architect|Senior

Oscar – AI agent development, AI API integration, AI telemetry

Oscar is a Senior AI engineer with strong expertise in agentic systems, LLM orchestration, and production-grade AI architectures. He has hands-on experience with Python, FastAPI, AWS, LangChain, and multi-agent orchestration, and has led teams in building scalable AI products. Screenings confirm his clear communication, pragmatic approach, and effective leadership in both technical and client-facing contexts.

8 years of commercial experience in
AI
Main technologies
AI agent development
3 years
AI API integration
3 years
AI telemetry
3 years
AI chatbot development
3 years
LLM evaluation
3 years
AI deployment
3 years
LLM orchestration
3 years
AWS Lambda
6 years
AI system design
3 years
AI agent orchestration
3 years
AI-assisted coding
3 years
FastAPI
6 years
Additional skills
LLM
Python
AWS
Node.js
SQL
Docker
Kubernetes
Typescript
Claude LLM
Claude Code
Claude API
LangGraph
LangChain
React
Databricks
Airflow
Direct hire
Possible
Ready to get matched with vetted developers fast?
Let’s get started today!

Experience Highlights

Tech Lead AI Engineer
Jan 2026 - May 20264 months
Project Overview

An AI-powered multi-agent recruitment system designed to automate candidate sourcing and evaluation based on specific job descriptions. The platform uses Claude SDK-driven sub-agents and reusable skills to analyze candidate data, streamline recruiter workflows, and significantly reduce the time required to identify high-quality candidates.

Project gallery:
Portfolio example for AI Multi Agent System by Oscar, Tech Lead AI Engineer
Responsibilities:
  • Defined the architecture and implementation of the AI system;
  • Implemented agent memory and context management;
  • Deployed the AI agent to production;
  • Defined agent architecture and context management.
Project Tech stack:
Claude API
Claude Code
Claude LLM
Typescript
Docker
LLM orchestration
AI agent development
AI agent orchestration
AI deployment
Tech Lead AI Engineer
Jan 2025 - Dec 202511 months
Project Overview

An AI-powered chatbot built with LangChain and Retrieval-Augmented Generation (RAG) to provide accurate, context-aware answers from multiple databases and document sources. The system leveraged LLMs to process user queries, retrieve relevant information, and support scalable conversational interactions for high-volume usage.

Project gallery:
Portfolio example for AI Chatbot by Oscar, Tech Lead AI Engineer
Responsibilities:
  • Defined the agent architecture;
  • Refined prompt engineering strategies;
  • Scaled the system in production to support thousands of users;
  • Set up evaluation workflows in Langfuse.
Project Tech stack:
Python
Databricks
React
Tech Lead AI Engineer
Jun 2025 - Oct 20254 months
Project Overview

An AI-driven insights generation platform designed to transform structured data into actionable business intelligence using LLMs. The system enabled users to analyze complex datasets more efficiently and support faster, data-informed decision-making through natural language interactions and automated insight generation.

Project gallery:
Portfolio example for AI Insights Generation by Oscar, Tech Lead AI Engineer
Responsibilities:
  • Defined AI use cases and solution approach;
  • Set up deployment processes and infrastructure;
  • Implemented frontend functionality.
Project Tech stack:
LangChain
LangGraph
Python
Senior Data Engineer
Oct 2024 - Dec 20242 months
Project Overview

A data pipeline ingestion system designed to collect and standardize events from multiple platforms and services for downstream AI processing. The solution enabled reliable data aggregation, schema consistency, and scalable event handling to support AI-driven analytics and automation workflows.

Project gallery:
Portfolio example for Data Pipeline Ingestion by Oscar, Senior Data Engineer
Responsibilities:
  • Defined the event pipeline architecture;
  • Defined schemas and validation rules.
Project Tech stack:
Airflow
Python
DBT

Education

2025
Computer Science
Master of Science

Languages

Spanish
Advanced
English
Advanced

Hire Oscar or someone with similar qualifications in days
All developers are ready for interview and are are just waiting for your requestdream dev illustration
Copyright © 2026 lemon.io. All rights reserved.