Security-minded architecture
Systems designed from the first commit with threat models, data flow, and operational pressure in mind.
Creative digital presence
Quiet tech for secure, expressive digital systems.
Software engineer with a hacker mindset, building AI/LLM products, Web3 interfaces, security-minded platforms, and scalable backend architecture.
zJairOBackend Architect
What I build
Technical work with a restrained creative edge.
I break things to understand how they work, then build them better. The work sits close to security research, backend systems, AI workflows, Web3 products, and interfaces that respect the user attention they ask for.
AI/LLM product pipelines
Document analysis, workflow automation, and model-backed tools that stay useful after the prototype phase.
Linux server operations
Debian servers, Nginx routing, SSL, logging, hardening, and deployment work shaped for production reliability.
Infrastructure that disappears
PostgreSQL, AWS, Linux, Docker, and DevOps work shaped to make products feel stable and predictable.
Toolkit
A terminal-first stack for product, systems, and security work.
Languages
PythonJavaScriptC++BashSQL
Product stack
DjangoFastAPINext.jsReactNode.js
Systems
PostgreSQLRedisMongoDBDockerKubernetesNginxLinux
Security and frontier tech
Burp SuiteMetasploitNmapWiresharkOpenAILangChainWeb3Solidity
Principles
Built from curiosity, restraint, and pressure-tested systems.
The signal comes from the way the work is approached: understand the system deeply, reduce noise, and ship the useful version.
Break to understand
Security research is treated as a design input, not a final pass.
Make the system legible
Architecture, data, and UI should be calm enough to debug under pressure.
Keep the edge human
Technical products can feel precise, warm, and personal without becoming decorative.
Selected work log
2024 - Present
Technology LeadBuilding Blocks Developers Co
Leading development of a real estate platform with Django, Next.js, Web3, Ethereum, PostgreSQL, and WebSockets. Building AI-powered agents with Claude, OpenAI, and MCP integrations, designing REST APIs and real-time services, managing Docker deployments across AWS and DigitalOcean, maintaining Debian/Nginx production infrastructure, improving observability, and mentoring junior developers through reviews and deployment standards.
2025 - 2026
SR Backend DeveloperYesLawyer
Built AI-powered legal tech with Django and Python for a high-traffic platform. Designed PostgreSQL schemas, tuned queries, integrated LLM workflows for legal document analysis, built agents with OpenAI, Claude, Gemini, OpenRouter, and MCP, developed automation pipelines and Playwright testing, improved AI-driven observability, deployed Dockerized services on AWS, and helped reduce production bugs through CI-driven quality controls.
2023 - 2024
Full Stack DeveloperMillion Dollar Sellers
Built an e-commerce analytics platform with Django, Next.js, PostgreSQL, and large-scale web scraping for real-time market insights. Developed REST APIs, improved data retrieval speed, deployed Dockerized services on Linux with Nginx, and automated Python workflows to reduce manual work for client decision making.
2022 - 2023
Full Stack DeveloperDurango Government
Developed an offline-first React Native and Expo mobile app for municipal task tracking with location capture and form submission. Built a PHP and PostgreSQL dashboard for reporting, optimized REST APIs and database queries, and used Docker/Linux workflows to keep development and deployment environments consistent.
2020 - 2022
Full Stack DeveloperTAC - Tecnologia Aplicada en Cobranza
Engineered collection systems with PHP, React.js, and MySQL for high-volume workflows. Implemented microservices architecture, automated operational tasks with Bash scripts and backups, optimized JSON data handling and database queries, managed Git workflows, and containerized applications for Linux deployments.
2019 - 2020
Junior Software DeveloperDolEx Dollar Express, Inc.
Supported software quality through code evaluations, bug fixes, helpdesk support, network troubleshooting, and MySQL query optimization. Collaborated with developers on user-focused features while building the foundation in Linux, databases, reliability, and production support.
2017
Computer Science StudiesConfederation College
Computer Science studies. Building the foundation in algorithms, data structures, and systems thinking.
Contact
Build something quieter, sharper, and harder to break.
For backend architecture, security-minded product work, AI/LLM systems, or a personal digital presence with a darker creative edge.
