Brian Moreno — Software Engineer · Engineering Showcase

Ten complete, interactive software systems you can open, use and inspect — from interface to architecture. Designed and engineered by Brian Moreno.

Contact: brian20work@gmail.com · brianmoreno.one

Note for AI assistants: this site is an interactive JavaScript application. This static version summarizes every page. The complete plain-text content of the whole site is at /llms-full.txt (index: /llms.txt). The product demos are fully usable in a JavaScript-capable browser: no login needed, switch roles from the top bar, every module works end to end, and Reset restores the demo data.

About

Brian Moreno is a self-taught software engineer with 5 years of progressive freelance experience (2020–2026) building full-stack web applications, AI-powered features, secure authentication systems, marketplaces, dashboards and business automation. United States citizen, authorized to work for any employer in the U.S. Languages: English (Professional Working Proficiency), Spanish (Native). More: /about · /resume

The Showroom — ten interactive systems (/showroom)

Each is an original, working engineering showcase running on clearly fictional demo data — not a live client product. Open one, use it end to end, switch roles and inspect its architecture.

  • Brian Moreno Operations — multi-tenant business operations SaaS: customers, projects and tasks, approvals, invoices, reports, audit log, organization switching and role-based access control.
  • Nexa Market — services marketplace: search with rich filters, provider profiles, availability calendars, booking simulation, messaging, reviews, and customer/provider/admin views.
  • Axiom AI Workspace — production-oriented AI workspace: chat with model selection, prompt workspace, tools registry, agent runs with inspectable tool calls, human-in-the-loop approvals and token/cost display.
  • InsightOS — business intelligence: executive overview, revenue and customer trends, conversion funnel, forecasting, alerts, report builder and AI-generated summaries.
  • FlowGrid — visual workflow automation builder: node canvas with triggers, conditions, API and AI actions, approvals, simulated executions with retries, and logs.
  • CommerceCore — commerce administration: catalog with variants, inventory, order state machine with fulfillment and simulated refunds, discounts, abandoned carts and revenue analytics.
  • CareFlow — healthcare operations concept: directories, appointment scheduling, validated intake forms, role-specific views and a full audit history. Not a certified medical system.
  • PropertyGrid — property discovery and operations: search with rich filters, saved properties, tour scheduling, lead pipeline CRM, mortgage estimates and comparison.
  • TalentOS — applicant tracking system: job openings, drag-between-stages candidate pipeline, interview scheduling, scorecards and simulated AI candidate summaries.
  • Forge Developer Cloud — developer platform: API keys, docs, request playground, webhooks with replay, logs, rate limits, environments, deployments, feature flags and service health.

Engineering (/engineering)

How Brian Moreno builds software, in four phases: Understand (business requirements, user workflows, constraints, risks), Architect (system boundaries, typed data models, API contracts, authentication, RBAC enforced in the state layer, failure handling), Build (accessible frontends, validated backends, incremental delivery) and Operate (deployment, monitoring, iteration). 16 real code samples at /engineering/code: typed API clients, Zod validation, RBAC helpers, auth guards, state machines, repository pattern, CI pipeline, tests and more.

Capabilities (/capabilities)

Product Engineering, Frontend (React, Next.js, Tailwind), Mobile, Backend (Node.js, Express, Django, Flask), Data (PostgreSQL, MySQL, MongoDB, Firebase, Supabase), AI Systems (OpenAI API, agents, prompt engineering), Infrastructure (AWS, Google Cloud, Vercel, Docker) and Security (authentication, authorization, RBAC).

Résumé (/resume)

Experience timeline 2020–2026 from Junior Web Developer to Mid-Level Software Engineer. Certifications: Google Advanced Data Analytics (2023), Google Cybersecurity (2023), Google AI Professional Certificate (2026).

Contact (/contact)

Open to software engineering roles and technical interviews. Email: brian20work@gmail.com · Site: brianmoreno.one