Leandro Barbosa
Leandro Barbosa

Senior AI Engineer

Actively looking · Member since 3 Jul 2026
Message
Location
Brazil
Desired salary
from 25 USD/hourly
Work preference
Full Time
Experience level
Not set

About

Professional summary

I am a Senior AI Engineer and Software Architect with more than 10 years of experience building and scaling high-performance platforms across artificial intelligence, distributed systems, video streaming, blockchain, and cloud infrastructure.

I specialize in production-grade AI systems, including RAG pipelines, private AI platforms, multi-agent architectures, and distributed inference engines. My work is guided by an engineering-first mindset, with a strong focus on scalability, reliability, cost efficiency, and practical deployment.

I have contributed to mission-critical platforms serving millions of users, including work on the largest Video CDN in South America at Globo. I have also led architecture and infrastructure initiatives in remote-first environments, helping teams improve observability, delivery velocity, and system resilience.

My background includes designing hybrid cloud and HPC solutions, optimizing AI workloads, and building systems that reduce infrastructure costs while improving throughput and performance. I enjoy solving complex technical problems that require both deep architectural thinking and hands-on implementation.

Over the years, I have worked across software engineering, DevOps, AI infrastructure, and backend architecture, using technologies such as Python, Go, TypeScript, AWS, Docker, Kubernetes, Terraform, and vector databases. I have also built products from the ground up as a founder and principal engineer.

I am based in Brazil and open to remote opportunities. I speak Portuguese natively, am fluent in English, and have professional Spanish skills. I am looking for challenging roles where I can continue building advanced AI and distributed systems at scale.

Skills

16 capabilities

Experience

Career history

Staff Software Engineer - AI Infrastructure & Distributed Systems BeConfident

Driving cross-team architecture for scalability and sustainability; designing resilient distributed systems; improving video quality, real-time communication, and platform performance; contributing to WhatsApp real-time calling infrastructure; partnering on applied AI initiatives; establishing observability and reliability standards; leading incident response and post-mortems; mentoring engineers.

Principal Software Engineer - AI Infrastructure & Distributed Systems Magic (Research Magic)

Built Fabric Hypergrid, a distributed AI computational platform; architected a computational hypergrid for Harvard and Boston Children's Hospital; designed AI-powered orchestration and optimization layers with Intel; developed AI-driven molecular analysis for SES Battery Innovation; built a private AI platform; engineered the Rapyd AI Model Optimization Engine.

Lead Software Engineer FANHERO

Reduced AI inference latency by 40%; increased platform reliability to 99.9% uptime; cut cloud infrastructure costs by 35%; improved RAG pipeline accuracy to 92%; enabled real-time processing of 10K+ events per second.

Founder VOODFY

Integrated HLS, MPEG-DASH, and Smooth Streaming into Filecoin; launched a decentralized video platform; reduced video hosting costs by 60%.

Lead Software Engineer GLOBO

Delivered video content to millions of concurrent users with 99.99% availability; won engineering awards; handled 300%+ traffic surge during COVID-19; launched 4K content delivery pipeline; reduced video startup time by 25%.

Principal Engineer / Founder ROY

Launched OTT SaaS platform from zero to production; reduced deployment time by 70%; managed AWS infrastructure for enterprise clients.

DevOps Engineer (Blockchain Video Platform) PARATII

Automated deployment pipeline reducing release time by 80%; achieved 99.5% video transcoding success rate.

Lead Software Engineer MAESTRUS

Redesigned video platform architecture improving performance by 50%; built secure video hosting system for enterprise customers.

Lead Software Engineer EUGOSTO.DE

Increased content engagement by 40%; migrated legacy PHP/WordPress platform to Python/Django; improved audience targeting accuracy by 35%.

Software Engineer, Level 3 TRIPLIN

Improved travel recommendation accuracy by 45%; reduced booking abandonment rate by 25%; built scalable REST APIs for 5K+ daily active users.

Software Engineer, Level II FLAGCX

Delivered social media analytics tools for Fortune 500 brands; improved brand sentiment analysis accuracy by 30%; enabled data-driven marketing decisions.

Software Engineer II STORM SECURITY

Architected a video streaming platform for Esporte Interativo; achieved 99.9% video delivery uptime; reduced buffering incidents by 40%.

Software Engineer I LINKZTER

Launched a mobile social networking app; reduced API response time by 50%; built scalable backend infrastructure with real-time features.

Software Engineer I HADRONS

Reduced deployment failures by 90%; improved test coverage to 85%; decreased page load time by 60%.

Software Developer TREE SOFTWARE

Delivered 5+ production applications; reduced manual deployment time from hours to minutes; improved system reliability through testing.

Education

Learning history

Estácio de Sá

Postgraduate Certificate in High Performance Computing

UniFECAF

Postgraduate Certificate in AI in Marketing & Growth

UniFECAF

Postgraduate Certificate in Blockchain Development

STAR Research Institute & Sigmoidal

Postgraduate Certificate in Data Science

Dual certification

Estácio

Technology Degree in Data Science

Universidade Veiga de Almeida

BSc in Computer Science / Software Engineering

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