Luís Guilherme
Senior Software Engineer | AI & Systems Architecture | TypeScript · Python · Go
lgpelin92@gmail.com · luisguilher.me · github.com/lguibr · linkedin.com/in/lguibr
PROFESSIONAL SUMMARY
Senior Software Engineer focused on AI systems, scalable backend architecture, and real-time pipelines. I design and ship production-grade LLM systems, optimize high-throughput services, and lead teams across AI, frontend, and backend initiatives. Experienced in logistics, fintech (crypto), and complex multi-platform products.
TECHNICAL SKILLS
Languages: TypeScript (Node/React), Python, Go AI/ML: LLMs, PyTorch, TensorFlow.js, Reinforcement Learning (MCTS / AlphaZero) Infrastructure: AWS, GCP, Terraform, Docker, Kubernetes Testing: Playwright, Jest, PyTest
PROFESSIONAL EXPERIENCE
Trebu (YC S22) — AI Software Engineer (1 year 5 months)
Jul 2024 – Nov 2025 · Remote
Logistics automation platform using LLMs for multi-party negotiation.
Highlights
- Architecture: Designed the Find Me a Truck multi-agent system, automating a negotiation flow previously handled manually. Reduced end-to-end response time from 3+ minutes → < 1 minute, reaching dozens of truckers per request.
- Performance: Reduced LLM latency by +66% with parallel execution, conditional routing, and aggressive caching.
- Computer Vision: Added segmentation to the OCR pipeline, improving vehicle identification accuracy by 6%.
- Leadership: Documented internal architecture standards, Git processes, and delivery workflows. Mentored engineers across backend, AI, and frontend workstreams.
Techs
TypeScript, Python, Django, React, LangChain, AWS (Lambda, ECS, RDS, SQS), Docker, PostgreSQL, OCR, OpenAI & Claude toolchains
Paradigm — Software Engineer (2 years 1 month)
Apr 2022 – Apr 2024 · Remote
Institutional liquidity network for crypto derivatives.
Highlights
- Unified UI: Consolidated React, React Native, and Electron into a shared component architecture.
- High-Performance Systems: Built and maintained low-latency trading features with sub-second SLAs.
- Reliability: Implemented Playwright E2E paths for mission-critical trading flows.
- Leadership: Guided the UI team on architecture, reviewed PRs, and introduced Playwright-based E2E testing to additional teams.
Techs
TypeScript, React, React Native, Electron, Go, Kafka, Docker, Node.js, Playwright, CSS/HTML, Linux
Trio — Senior Software Engineer / Tech Lead (2 years)
May 2020 – Apr 2022
Highlights
- Leadership: Promoted from Engineer to Tech Lead. Directed architecture, cloud provisioning (AWS/GCP), and delivery strategy across multiple squads (1–8 devs).
- Modernization: Migrated a monolithic UI into a micro-frontend architecture, reducing build times by 40%.
- Delivery: Shipped multiple production apps end-to-end, converting business constraints into scalable architecture across frontend, backend, and cloud.
Techs
TypeScript, Vue.js, Next.js, React, Electron, Koa, Express, GraphQL, Strapi, PostgreSQL, MySQL, Redis, Webpack, GCP, Terraform
TremTec — Frontend Lead (11 months)
Jul 2019 – May 2020
Led the frontend/UI team. Defined technical requirements, mentored developers, and delivered scalable SPAs using React, TypeScript, and GraphQL.
netLex — Software Engineer (1 year)
Aug 2018 – Jul 2019
Full-stack development for a new SPA platform using AngularJS, Laravel, and MySQL.
SELECTED PROJECTS
PonGo — Real-Time Multiplayer Game
Real-time Pong/Breakout hybrid with multi-room support. Backend written in Go using a custom Actor Model (Bollywood) enabling high concurrency and zero dependencies.
AlphaTriangle — AlphaZero-Style Reinforcement Learning Agent
AI agent trained to play a custom puzzle game using MCTS, PyTorch, and distributed self-play with Ray. Includes async training, stats logging, and exportable ONNX inference models.
MimeFlow — Pose Matching PWA
Real-time pose evaluation app for dance/yoga/martial arts. Runs fully in-browser using TensorFlow.js and BlazePose for body tracking and scoring.
EDUCATION
- Physics (Incomplete) — Universidade Federal de Minas Gerais (2018–2022)
- Tech. Information Technology — CEFET-MG (2006–2008)
Luís Guilherme
Senior Software Engineer | AI & Systems Architecture | TypeScript · Python · Go
lgpelin92@gmail.com · luisguilher.me · github.com/lguibr · linkedin.com/in/lguibr
PROFESSIONAL SUMMARY
Senior Software Engineer focused on AI systems, scalable backend architecture, and real-time pipelines. I design and ship production-grade LLM systems, optimize high-throughput services, and lead teams across AI, frontend, and backend initiatives. Experienced in logistics, fintech (crypto), and complex multi-platform products.
TECHNICAL SKILLS
Languages: TypeScript (Node/React), Python, Go AI/ML: LLMs, PyTorch, TensorFlow.js, Reinforcement Learning (MCTS / AlphaZero) Infrastructure: AWS, GCP, Terraform, Docker, Kubernetes Testing: Playwright, Jest, PyTest
PROFESSIONAL EXPERIENCE
Trebu (YC S22) — AI Software Engineer (1 year 5 months)
Jul 2024 – Nov 2025 · Remote
Logistics automation platform using LLMs for multi-party negotiation.
Highlights
- Architecture: Designed the Find Me a Truck multi-agent system, automating a negotiation flow previously handled manually. Reduced end-to-end response time from 3+ minutes → < 1 minute, reaching dozens of truckers per request.
- Performance: Reduced LLM latency by +66% with parallel execution, conditional routing, and aggressive caching.
- Computer Vision: Added segmentation to the OCR pipeline, improving vehicle identification accuracy by 6%.
- Leadership: Documented internal architecture standards, Git processes, and delivery workflows. Mentored engineers across backend, AI, and frontend workstreams.
Techs
TypeScript, Python, Django, React, LangChain, AWS (Lambda, ECS, RDS, SQS), Docker, PostgreSQL, OCR, OpenAI & Claude toolchains
Paradigm — Software Engineer (2 years 1 month)
Apr 2022 – Apr 2024 · Remote
Institutional liquidity network for crypto derivatives.
Highlights
- Unified UI: Consolidated React, React Native, and Electron into a shared component architecture.
- High-Performance Systems: Built and maintained low-latency trading features with sub-second SLAs.
- Reliability: Implemented Playwright E2E paths for mission-critical trading flows.
- Leadership: Guided the UI team on architecture, reviewed PRs, and introduced Playwright-based E2E testing to additional teams.
Techs
TypeScript, React, React Native, Electron, Go, Kafka, Docker, Node.js, Playwright, CSS/HTML, Linux
Trio — Senior Software Engineer / Tech Lead (2 years)
May 2020 – Apr 2022
Highlights
- Leadership: Promoted from Engineer to Tech Lead. Directed architecture, cloud provisioning (AWS/GCP), and delivery strategy across multiple squads (1–8 devs).
- Modernization: Migrated a monolithic UI into a micro-frontend architecture, reducing build times by 40%.
- Delivery: Shipped multiple production apps end-to-end, converting business constraints into scalable architecture across frontend, backend, and cloud.
Techs
TypeScript, Vue.js, Next.js, React, Electron, Koa, Express, GraphQL, Strapi, PostgreSQL, MySQL, Redis, Webpack, GCP, Terraform
TremTec — Frontend Lead (11 months)
Jul 2019 – May 2020
Led the frontend/UI team. Defined technical requirements, mentored developers, and delivered scalable SPAs using React, TypeScript, and GraphQL.
netLex — Software Engineer (1 year)
Aug 2018 – Jul 2019
Full-stack development for a new SPA platform using AngularJS, Laravel, and MySQL.
SELECTED PROJECTS
PonGo — Real-Time Multiplayer Game
Real-time Pong/Breakout hybrid with multi-room support. Backend written in Go using a custom Actor Model (Bollywood) enabling high concurrency and zero dependencies.
AlphaTriangle — AlphaZero-Style Reinforcement Learning Agent
AI agent trained to play a custom puzzle game using MCTS, PyTorch, and distributed self-play with Ray. Includes async training, stats logging, and exportable ONNX inference models.
MimeFlow — Pose Matching PWA
Real-time pose evaluation app for dance/yoga/martial arts. Runs fully in-browser using TensorFlow.js and BlazePose for body tracking and scoring.
EDUCATION
- Physics (Incomplete) — Universidade Federal de Minas Gerais (2018–2022)
- Tech. Information Technology — CEFET-MG (2006–2008)
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