Brazil · Zürich

Leandro Damasio

Computer Engineer. AI systems for finance and high-reliability environments.

Based in Brazil, working across Zürich and São Paulo.

Selected workNotes

Selected Projects

Work

2017–2026

Enforce · BTG Pactual Group

AI Engineer

ACTIVE

2025–present

Built Forja, an internal LLM governance platform with RAG pipelines, vector databases, and prompt versioning. Reduced time to test AI workflows from days to hours. Built Prompt-Maker for centralized prompt governance across multiple systems. Structured Kubernetes (k3s) + ArgoCD + GitOps environment for AI service isolation and monitoring.

Python · FastAPI · Kubernetes · ArgoCD · pgvector · ParadeDB · LLMs · embeddings · CI/CD

Arte Arena

Principal Software Engineer

SHIPPED

2024–2025

Led modernization of legacy systems into a cloud-native SaaS platform. Migrated critical Laravel API to Go, achieving 42% faster deployment cycles and 39% lower compute costs. Architected event-driven workflows with Kubernetes, Istio, and ArgoCD. Developed AI-enhanced features using Generative AI APIs and FastMCP.

Go · Python · FastAPI · React · Kubernetes · Istio · ArgoCD · AWS

Stefanini · FAPESP

Senior Software Engineer

SHIPPED

2024–2025

Revamped FAPESP Virtual Library search engine (Apache Solr): 37% faster query response through data indexing optimizations. Led global full-stack team delivering Laravel-based platform for academic research funding. Resolved critical bugs in Django systems, improving stability for 500k+ monthly users.

Python · Django · Laravel · Apache Solr · PHP

RBX Systems

Founder

ACTIVE

2020–present

AI-first infrastructure and tooling for regulated and high-reliability environments. Open-source monorepo covering AI agents, code agents, and system-level tooling. Architecture focus: long-term maintainability, observability, and minimal external dependencies.

Rust · TypeScript · Python · Go · Bash

NPL Brasil

Software Engineer

SHIPPED

2019–2022

Automated data pipelines with Node.js and AWS, cutting manual processing time by 50%. Integrated Google Cloud Document AI for automated document analysis. Developed and deployed smart contracts on Ethereum for cryptocurrency transaction integrity.

Node.js · AWS · Google Cloud · Ethereum · Solidity

Global Hitss

Software Engineer

SHIPPED

2017–2019

Designed a scalable data lake with Hadoop and Spark enabling real-time analytics for enterprise clients. Reduced deployment cycles by 23% through CI/CD pipeline automation. Delivered full-stack applications with React and Nest.js for financial sector clients.

React · Nest.js · Hadoop · Spark · ArgoCD · Docker

Personal tools

RBX Systems

RTK — Rust Token Killer

IN PRODUCTION

2025–present

Claude Code proxy that filters and compresses tool output at the shell layer. Transparent hook-based rewriting of common dev commands — zero overhead, 60–90% token reduction on routine operations. Includes analytics, per-command savings tracking, and a discovery mode for missed optimization opportunities.

Rust · Bash

RBX Systems

x.sh — Governed Execution Runtime

IN PRODUCTION

2024–present

Local-first shell wrapper that turns real commands into durable, causal, machine-readable evidence. Creates a hard trust boundary between actual execution and AI interpretation. Output is structured JSON: timestamped, attributed, immutable.

Bash · Shell · JSON

RBX Systems

wt — Worktree Manager

SHIPPED

2024–present

CLI tool for Git worktree management with environment profiles. Enables rapid switching between isolated development contexts, each with its own environment variables and configurations. Designed for multi-branch, multi-agent workflows.

Bash · Shell · Git

RBX Systems

Strategos — Strategic Runtime

IN PROGRESS

2025–present

Agentic runtime for long-horizon planning and multi-scenario analysis. Structured decision support with explicit assumption tracking, risk registers, and outcome attribution. Built for personal and organizational use in low-certainty environments.

Python · TypeScript · LLMs

Capabilities

Technical expertise

AI/LLM systems · RAG pipelines · agentic runtimes · prompt governance

Distributed systems · trading infrastructure · event-driven architecture

Languages: Rust, TypeScript, Python, Go, Bash

Infrastructure: Kubernetes, k3s, ArgoCD, GitOps, Docker

Databases: PostgreSQL, pgvector, ParadeDB, MongoDB, Redis

Frameworks: FastAPI, Next.js, React, Svelte, Nest.js

Specialties: Observability, MLOps, CI/CD, cloud-native, vector search, LLM evaluation

Writing

Notes

AI · Governance

Prompt governance in regulated AI environments

10 Dec 2025

8 min

AI · Architecture

Agentic runtimes: from orchestration to control

22 Oct 2025

10 min

AI · Infrastructure

Vector search in compliance-sensitive retrieval

15 Aug 2025

7 min

AI · Governance

AI governance for financial systems: a practitioner view

3 Jun 2025

9 min

AI · Infrastructure

MLOps for high-reliability environments

18 Apr 2025

6 min

Contact

Available for selected engagements.

leandro@rbxsystems.ch

github.com/ldamasio

linkedin.com/in/ldamasio