Zaú Júlio
Full Stack Developer | Tech Lead | Systems Engineer
About Me
Experience
Tech Lead
Bitwise Technology
Leading the engineering efforts to build high-performance software solutions. Defining technical standards, overseeing system design from ER modeling to cloud infrastructure budgeting and deployment.
Full Stack Developer
Bitwise Technology
Designing and developing robust web applications across the entire software lifecycle — from planning and architecture to deployment and optimization.
Full Stack Developer
Commcepta
Handled complex projects involving Big Data and GraphQL. Explored hidden insights within graph data structures, building a large-scale data lake.
Project Director
Byte Serido Jr
Started as a Frontend Developer, later taking on the role of Project Director. Led the planning and execution of software projects.
Research Assistant
Federal University of Rio Grande do Norte (UFRN)
Worked as an Undergraduate Research Assistant at LabEPI/UFRN on projects focused on applying Artificial Intelligence and Unsupervised Machine Learning for smart energy management. Built data pipelines using Python, R, and Octave to ingest and pre-process time-series data.
Education
Bachelor's Degree in Information Systems
Federal University of Rio Grande do Norte (UFRN)
8-semester program (3000h) covering algorithms, data structures, OOP, databases, software engineering, computer networks, operating systems, web and visual programming, statistics, and systems analysis. Engaged in research and scientific initiation.
Technician in Computer Networks
Metropole Digital - IMD/UFRN
Technical course at the Institute of Computing and Digital Technologies (IMD). Covered network architecture, server administration, Linux systems, and infrastructure fundamentals.
Teaching Assistant (Monitor)
Metropole Digital - IMD/UFRN
Teaching Assistant for Computer Networks course. Supported students in practical labs, coursework, and network configuration exercises. Assisted professors during practical sessions and helped students understand networking concepts and troubleshooting.
Languages
Thesis
Features Analyzer
Boilerplate for Data Visualization and Analysis Tools
Federal University of Rio Grande do Norte (UFRN) - 2024
A Python desktop application for dataset feature analysis, prototyping and testing machine learning and statistical models. Built with a modular architecture using GTK for the UI, featuring a custom state management system with the Observer pattern, a typed JSON ORM with Pydantic and TinyDB, and internationalization support (i18n). Includes Docker containerization and automated documentation with MkDocs.
Projects & Skills
A selection of open-source projects spanning full-stack development, machine learning, Linux tooling, and system engineering.
FeaturesAnalyzer
Python desktop application for dataset feature analysis, prototyping and testing ML and statistical models. Built with GTK, Pydantic, TinyDB, and i18n.
ZSOM
Implementation of the Self-Organizing Maps algorithm in Python. Visualization and clustering of high-dimensional data.
weasyprint-pdf-render
A high-performance HTML-to-PDF rendering Dockerized microservice. CI/CD pipeline with automated documentation.
AutoThrottleSetup
Manual configuration tool for unexpected thermal throttle on Linux. Automates CPU frequency and power management.
linuwu-sense-dkms
DKMS kernel module for Linux hardware sensor monitoring. Provides custom driver support for temperature and fan sensor readings.
Portifolio
Personal portfolio website showcasing projects, skills, and experience. Built with React, TypeScript, and Tailwind CSS.
Skills
Databases
Backend & APIs
TypeScript Ecosystem
Frontend
Python Ecosystem
DevOps & Infra
ML & AI
Soft Skills
Analytical Problem Solving
Bottleneck diagnosis, complex architecture debugging, and latency/load optimization in high-demand systems.
Systems Thinking & Planning
Engineering roadmap management and full ecosystem architecture design, connecting business rules to infrastructure.
Pragmatism & Efficiency Focus
Prioritizing performance, stability, and low resource usage in technical decision-making and solution implementation.
Communication & Feedback
Conducting constructive code reviews focused on vulnerability mitigation and maintaining solid relationships with R&D teams.
Multidisciplinary Adaptability
Efficient transition between multiple stacks (Node.js, C#, Python), infrastructure environments (CI/CD, DevOps), and OS/hardware-level optimizations.
Autonomy & Proactivity
Independent identification of infrastructure bottlenecks and anticipation of scalability needs (e.g., preemptive cache and load balancing implementation).
Attention to Detail
Thorough review of critical routines, ensuring data integrity and accuracy in institutional reporting systems and document generation.
Continuous Learning
Active research and integration of new technologies, runtimes, and automation tools for stack modernization and continuous performance improvement.
Technical Collaboration
Articulating solutions between development, infrastructure, and product, spreading engineering best practices and security standards across the team.
Time Management & Prioritization
Balancing complex new feature development (e.g., indicator dashboards) with necessary refactoring to maintain low resource usage and stability.
Latest Articles
Random musings, digital curiosities and stuff I just felt like writing
Hobbies & Interests
Beyond code — the things that inspire creativity and keep the balance.
Hobbies aren't just pastimes; they're essential for mental health, creativity, and preventing burnout. When we step away from the screen and engage in different activities, we give our brains the space to process, innovate, and recharge. Photography teaches me to see beauty in details, cooking connects me with culture and mindfulness, and music provides the rhythm that fuels my focus.
"To be creative, you must give yourself permission to explore."
Photography
Capturing moments and landscapes through the lens. From street photography to nature shots, exploring light, composition, and storytelling.
Read MoreCooking
Exploring culinary traditions from around the world. Love experimenting with new flavors and techniques in the kitchen.
Read MoreMusic
Playing guitar and exploring different genres. Music is a constant source of inspiration and creativity.
Read MoreHire Me
I'm open to new opportunities, freelance projects, and technical collaborations. If you're looking for a full-stack developer with experience in system design, cloud architecture, and AI — let's connect.
Location
Brazil (UTC-3)
Available for remote work
Experience
5+ years
Full Stack & Tech Lead