# Cleisson de Oliveira Moura

> Senior Software Engineer | Node.js, Python & AWS Specialist | Scalable Systems | Kubernetes | System Design | Building AI-Powered Products

## About

Senior Software Engineer specializing in backend development, cloud infrastructure, and scalable systems.

I work on designing and building production software using Node.js, Python, AWS, Kubernetes, and modern cloud-native technologies.

My experience includes designing scalable backend systems, building cloud infrastructure, developing APIs and distributed systems, and contributing to architecture decisions in startup and international environments.

I am passionate about system design, performance, and building reliable software. Outside of work, I explore new technologies and build personal projects.

## Focus Areas

- Backend Engineering
- Cloud Infrastructure
- Distributed Systems
- System Design
- Scalability & Performance
- AWS
- Kubernetes
- Node.js
- Python
- AI-powered products

## Projects

### [Jira → Toggl Quick Start](/en-US/projects/jira-toggl-quickstart)

Chrome extension that brings Toggl timers into Jira, copies issues as Markdown, and optionally turns completed timers into Jira Work Logs.

**Role:** Software Engineer

**Stack:** JavaScript, HTML, CSS, Chrome Extensions Manifest V3, Jira REST API, Toggl Track API, Node.js

### AccessTrace

Security analytics product prototype that turns synthetic audit events into an investigation workspace, with SaaS, self-hosted, and local MCP boundaries.

**Role:** Software Engineer

**Stack:** Next.js 16, React 19, TypeScript, ClickHouse, Postgres, Docker Compose, Zod, Vitest

## Blog

### [Implementation Planning vs. Developing: A Mental Model I Keep Coming Back To](/en-US/blog/implementation-planning-vs-developing)

A practical reflection on how implementation planning can reduce development effort, without pretending the chart is a scientific model.

[Contact](/en-US/contact)

[Public API and MCP documentation](/en-US/mcp)