Photo of Jason Barnachea

Hi, I'm @nautxx,

Multi-Agent Systems Builder, Open-source builder, Systems Engineer, Quality Engineer

Multi-Agent Systems Builder Open-source builder Systems Engineer Quality Engineer

17+ years building with a sharp eye for quality, usability, and aesthetics across construction engineering, field systems, service operations, and software.

From major infrastructure projects to automation-backed businesses, I turn messy problems into working systems: inspection workflows, testing processes, SOPs, customer operations, custom builds, and tools built end-to-end that last.

At Codenauts, I turned repeatable problems into repeatable systems — cleaner workflows, documented processes, automation, and self-service support for customers and teams.

Build it well. Make it useful. Make it last.

This still feels like day one. Ready for what’s next.

Work Experience

17+ years building reliable systems across infrastructure → quality → field operations → automation → software, translating complex real-world work into clear processes, durable tools, and measurable outcomes.

Systems Engineering

Rail systems testing, field integration, turnover readiness, stakeholder coordination

Quality Operations

QITPs, inspections, audits, compliance tracking, closeout documentation

Agentic Workflows

LLM agents, tool use, HITL handoffs, voice, messaging, and automation loops

Infrastructure Delivery

Design-build transportation projects, field QA/QC, reporting, owner acceptance

Process Architecture

Turning ambiguous field work into clear procedures, logs, standards, and handoffs

Software Mindset

Building tools from recurring pain points, improving usability, accuracy, and speed

Codenauts

Backend Developer & Quality Manager · Consultant to The Quality Firm

2022 – Present

Through Codenauts, I support The Quality Firm across backend development, quality management, field documentation, and software-enabled operational workflows.

  • Build backend tools and operational workflows that support quality documentation, inspection tracking, and project controls for transportation and infrastructure programs.
  • Authored project-specific Quality Inspection and Test Plans that translated specifications, regulatory requirements, and stakeholder expectations into executable field procedures.
  • Standardize recurring quality and backend operations into repeatable systems, reducing ambiguity across inspections, documentation reviews, issue tracking, and closeout workflows.

Custom GPTs

Built task-specific AI assistants for project planning, support workflows, QA review, writing, documentation cleanup, and repeatable operations.

Generative AI Marketing

Created AI-assisted marketing workflows for content drafts, brand messaging, customer support copy, social posts, campaign ideas, and reusable business prompts.

Backend Automation

Built Python-backed workflows and backend utilities for PDF parsing, file renaming, report cleanup, data extraction, document control, and recurring quality operations.

Operational Systems

Turned recurring field, QA, and documentation problems into repeatable processes, lightweight tools, clearer handoffs, and cleaner team workflows.

Skanska

Systems Engineer

2024 – 2025

Supporting final systems delivery for a major rail program through testing, integration, verification, and closeout readiness.

  • Supported systems field engineering, testing, and integration for rail systems through final construction, commissioning support, and turnover readiness.
  • Maintained detailed system logs to track installation progress, deficiencies, punch list items, corrective actions, and stakeholder follow-through.
  • Validated installed systems against design documents, safety requirements, and operational standards to support final acceptance and project closeout.

Skanska

Quality Engineer

2019 – 2022

Quality engineering and audit leadership for the $1.8B Metro Westside Purple Line Extension design-build program.

  • Performed field inspections, site surveillance, and Quality Management System tracking across underground station and rail construction scopes.
  • Led internal quality audits across underground station sites and subcontractor facilities, identifying compliance gaps and driving corrective action against the Project Quality Plan.
  • Reviewed method statements, Inspection and Test Plans, test reports, material records, and field documentation for compliance with project specifications and owner requirements.
  • Coordinated with construction, engineering, subcontractor, and owner teams to resolve NCRs, deficiencies, punch list items, and closeout documentation issues.
  • Supported quality reporting across four station areas, helping track inspection status, audit findings, corrective actions, and documentation readiness.
  • Built Python automation to extract data from flattened PDF test reports and rename project records according to specification-driven document control requirements.

Island & Cruise Adventure Inc

Web Development & Developer Operations

2012 – 2020

Supported a dive travel business through web development, site maintenance, and operations workflows for personalized trip planning and destination packages across Palau, the Philippines, and Japan.

  • Built and maintained customer-facing web pages using JavaScript, jQuery, HTML, and CSS to support destination information, trip planning, inquiries, and booking workflows.
  • Updated site content, page structure, forms, and lightweight front-end interactions while supporting day-to-day travel operations and customer communication.
  • Provided hands-on developer operations support across the business, bridging owner needs, customer-facing travel workflows, internal documentation, and practical web tooling.

RMA Group

Project Manager / Project Engineer

2012 – 2019

Managed quality operations, reporting, and closeout for public infrastructure and design-build programs across Southern California.

  • Managed concrete and asphalt paving quality operations across the full project lifecycle, from bid review and scope planning through final reporting and closeout.
  • Produced final reports, pay factor calculations, Quality Control Plans, and specification addenda for public infrastructure programs ranging from local agencies to billion-dollar design-build projects.
  • Created a JavaScript and Excel-based closeout punch list tool that improved issue tracking and supported substantial completion workflows for the Metro Exposition Phase 2 Railway project.

Leighton Consulting

Administrator / Dispatch

2007 – 2012

Early foundation in field coordination, materials testing workflows, documentation control, and internal tooling.

  • Coordinated field technicians, reviewed materials testing data, and maintained project documentation across multiple concurrent construction programs.
  • Built an internal JavaScript, jQuery, and HTML web app that notified inspectors of upcoming work by email and improved daily field coordination.

Projects

nautxx

AI Agent Infrastructure

Hermes-powered agents for Discord and Slack — not one bot, but a small operating layer of specialized assistants for support, community, project workflows, and server status.

Orchestrator

mission-os Private

Personal orchestrator + knowledge management

naut Private

Discord support agent for server status, Plex issues, printer chaos, and quick family tech help.

sage Private

Checks self-hosted services, uptime notes, Docker workflows, Caddy routes, and deployment reminders.

juniper Private

Slack marketing agent responsible for managing the company Instagram account, content ideas, captions, posting support, and brand consistency.

naut-pool-ui

Static dashboard for a solo Bitcoin mining pool, showing live hashrate, online devices, found blocks, and per-address worker statistics.

HTML/CSS/JS Public-Pool API Docker
View code 0 0
Private · On Request

nautsfw-infra

Self-hosted Docker, Caddy, uptime monitoring, dashboards, internal tools, and home-lab deployment patterns.

Docker Caddy Uptime Kuma Tailscale
View code 0 0
This Portfolio

nautsfw.com

Static portfolio system with responsive sections, theme switching, privacy page, project cards, and resume-focused content.

HTML CSS JavaScript Responsive UI
View code 0 0

Claude Code Power User

High-Agency · AI-Fluency

My daily workflow is an agentic build lab: Claude Code, MCPs, custom project instructions, reusable skills, and human-in-the-loop review for shipping real work faster.

  • Multi-agent workflows across portfolio work, infra tasks, support bots, phrase QA, and software builds.
  • MCP-style tool use for GitHub, calendar, docs, local files, deployment notes, and repeatable project operations.
  • Memory and context discipline: turning messy chats, screenshots, issues, and design feedback into durable project instructions.
  • Reusable AI workflows for code review, content cleanup, QA documentation, marketing support, and customer operations.
Building with the Claude API Advanced MCP Topics Claude Code in Action Introduction to MCP

Education

2000 - 2008 · Cal Poly Pomona

Aerospace Engineering

Certifications

2026

Advanced MCP Topics

Anthropic

Anthropic
2026
Anthropic
2026

Teaching AI Fluency

Anthropic

Anthropic
2026

AI Fluency for Educators

Anthropic

Anthropic

Skills

Languages

English Native
Spanish Professional proficiency

Soft Skills

Communications Leadership Systems Thinking Bias for Action

Tech Stack

AI / LLM

OpenAI (custom GPTs, tool use via API) Claude

Automation

n8n Make Zapier

Integrations

WATI (WhatsApp) Facebook API

Dev

Python FastAPI SQL Node.js / JavaScript SwiftUI Git

Infra

Vercel Docker Caddy Authentik