Available for remote — Full-Stack / AI workflows

Building AI-powered SaaS products with clean UX and real-world workflows.

Full-stack engineer building scalable apps and practical AI tooling—focused on speed, clarity, and product execution.

Systems shipped

Live transcription • AI evaluation • RAG knowledge bases

Stack

Next/React • Node/Express • MongoDB • Vercel/Fly

Speed

Delivery in 10–21 days (most builds)

Domain

EdTech • internal tools • service operations

Built for production: clean handoff, scalable architecture, and real workflows.

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Projects

A selection of work focused on SaaS, AI workflows, and product-driven engineering.

Güibbo

Featured

AI-powered education & training platform for psychology students and educators.

Private

• Real-time transcription with automated AI feedback
• Role-based dashboards (admin, professor, student)
• Clinical workflows, evaluations, and reporting
• Built for MVP speed with scalable architecture

ReactNode.jsExpressMongoDBTailwindAI APIs

Case study

Outcome

Standardized practice workflows and reduced manual review via structured AI feedback + reporting.

Role

Owner/Creator • Product + Full-stack Engineering

Scope

Dashboards, live transcription pipeline, AI evaluation/reporting flows, and production deployment foundations.

Screenshots (blurred)

Guibbo — Dashboard

Guibbo — Session / Transcription

Guibbo — Reporting

Private build — full walkthrough available on request.

Request demo →View services →

Open source

AI Feedback Mini-Tool

Lightweight tool that turns raw session text into structured, actionable feedback.

• Text → structured report (strengths, gaps, suggestions)
• Configurable framework (CBT, Humanistic, Psychodynamic)
• Clean formatting for review + export-ready sections
• Designed for speed: minimal UI, clear results

Next.jsOpenAI APIPromptingUI/UXMarkdown/JSON

Case study

Outcome

Faster review loops by converting long text into consistent, readable feedback outputs.

Role

Product + Engineering

Scope

Prompting + output schema, UI flow, reusable report components.

Try it out →

Open source

Dashboard UI Kit

A reusable component system for clean, fast dashboards—built for real workflows.

• Cards, stats, tabs, tables, modals, empty states
• Consistent spacing + Apple-ish typography rhythm
• Responsive by default with accessible tap targets
• Patterns for role-based apps (admin / user / viewer)

ReactTailwindDesign SystemAccessibilityResponsive UI

Case study

Outcome

Accelerated UI delivery across products by standardizing patterns + components.

Role

UX/UI + Engineering

Scope

Component library, layout patterns, tokens, docs conventions.

Try it out →

Open source

Auth + API Starter

Clean full-stack starter for MVPs: auth, protected routes, and production-ready API patterns.

• JWT auth + protected routes (client + server)
• REST API structure (controllers/services/middleware)
• Env-first configuration + sensible defaults
• Ready for deployment (Vercel + Fly.io-style setup)

Node.jsExpressMongoDBJWTREST

Case study

Outcome

Reduced setup time for MVPs by reusing proven auth + API scaffolding.

Role

Engineering

Scope

Auth flows, middleware, API structure, env configuration, deploy-ready patterns.

Try it out →

About

I build clean, production-ready products with fast iteration — from MVP scope to scalable systems.

I’m a full-stack engineer with a background in systems engineering and education. I build SaaS products that prioritize clarity, usability, and scalable architecture—especially in learning, automation, and AI-assisted workflows.

I’m comfortable across the stack (frontend, backend, databases, integrations) and I work best in fast-moving environments where product and engineering meet.

JavaScriptReact / Next.jsNode.jsExpressMongoDBTailwindREST APIsAI integrations

What I optimize for

Fast shipping with clear scope

Clean UX + maintainable architecture

Production reliability (deploy, hardening)

Typical engagement

From MVP to Production

Fast + clean

MVP sprint10–21 days

Product foundations10–21 days

Scale hardeningas needed

Production stack & systems

What I build with — end-to-end, designed for real workflows.

Built for speed • reliability • clarity

Frontend

React • Next.js • Tailwind • Design systems

Backend

Node.js • Express • REST APIs • Auth patterns

Data

MongoDB • schemas • pipelines • audit-ready models

LLMs • RAG • transcription • eval pipelines

AI Simulation

Clinical patient simulation • role-play flows • scoring

Infra

Vercel • Fly.io • env hardening • production deploys

Clean handoff • scalable architecture • production-grade delivery

Engagements

Product-architected engagements — built for clarity, speed, and production-grade delivery.

StarterBest first step

From $3,500

Typical delivery • 10–21 days

Discovery + Blueprint Sprint

For founders who want clarity first — strategy, scope, UX plan, and an execution-ready blueprint.

• Product scope + priorities (what matters now)
• User flows + UX wireframe direction
• Technical plan (stack, data model, API map)
• Delivery plan + milestones
• Risk list + tradeoffs (no surprises)

Add-ons

Clickable prototype (Figma)Branding polish + UI kit starterInvestor / stakeholder deck-ready summary

Design my blueprint →

We’ll confirm scope on a short call and send a clean execution plan.

ProMost popular

From $6,500

Typical delivery • 10–21 days

MVP Build Engagement

A clean, production-minded MVP — designed for real users, real feedback, and fast iteration.

• Auth + core flows (2–4 key workflows)
• Dashboard + CRUD (as needed)
• One integration (email/payments/maps) baseline
• Deployment + env hardening
• Handoff docs + next-steps roadmap

Add-ons

Second integration (Stripe, Twilio, etc.)Admin analytics + events trackingRole-based permissions expansion

Build my MVP →

We’ll confirm scope on a short call and send a clean execution plan.

PremiumFor teams

From $10k+

Typical delivery • 10–21 days

Scale-Ready Product Build

For teams who need reliability and structure — architecture for growth, observability, and clean ops.

• Roles & permissions (policy-ready)
• Analytics + KPI definitions + instrumentation
• Background jobs / automations
• Architecture for scale (multi-tenant optional)
• Hardening: performance, security, monitoring
• Polished UX + reusable component patterns

Add-ons

Multi-tenant + billing modelRAG/AI features + evaluation loopSLA-minded monitoring + incident playbook

Plan my build →

We’ll confirm scope on a short call and send a clean execution plan.

Choose your path

Engagements are tailored builds. Foundations are pre-architected starting points. Same standards — different starting assumptions.

Engagements: best when scope is unique or evolving.

Foundations: best when you want a proven base + upgrade paths.

Engagements include

DiscoveryArchitectureCustom workflowsProduction deployRoadmap

Foundations include

Proven baselineFast deliveryUpgrade pathsOps-readyClean handoff

Not sure? Start with an Engagement — we can always anchor to a Foundation baseline.

Product Foundations

Architected foundations for MVPs — built to ship fast today and scale clean tomorrow.

FoundationMost requested

From $6,500 (scope-dependent)

Client Portal Foundation

A production-grade client portal foundation — designed around real operations, permissions, and clean UX.

Delivery: 10–21 daysInfra: Vercel/Fly-readyBuilt for: real users

• Auth + roles (admin / client / team) with secure guardrails
• Admin dashboard + client views aligned to workflows
• Workflow-ready CRUD (projects, cases, tasks, users)
• Audit trail + lightweight metrics for accountability
• Production deployment + handoff docs + rollout checklist

Upgrade paths

Advanced permissions matrix + policy rulesMulti-tenant architecture (brands/teams) + tenant isolationAnalytics events + KPI dashboard (tracking-ready)

Launch this foundation →Build something similar →

Pricing reflects scope, integrations, and reliability requirements.

FoundationFast ROI

From $7,500 (scope-dependent)

Booking + Payments Foundation

A conversion-focused scheduling + payments foundation — built for reliability, clarity, and revenue workflows.

Delivery: 10–21 daysInfra: Vercel/Fly-readyBuilt for: real users

• Availability rules + booking flow (service-first UX)
• Stripe payments + invoices/receipts + webhooks
• Client booking portal + admin management dashboard
• Email notifications + reminders (baseline automations)
• Deployment + monitoring-ready setup

Upgrade paths

SMS reminders (Twilio) + no-show reduction flowsSubscriptions, deposits, refunds, promo codesMulti-staff scheduling + capacity logic

Launch this foundation →Build something similar →

Pricing reflects scope, integrations, and reliability requirements.

FoundationAI-ready

From $9,500 (scope-dependent)

AI Knowledge Base Foundation

A secure internal knowledge foundation — AI chat, semantic search, and controlled access for teams.

Delivery: 10–21 daysInfra: Vercel/Fly-readyBuilt for: real users

• Document ingestion (PDFs + structured files) with permissions
• AI chat over private knowledge with retrieval guardrails
• Semantic search + filters for speed and trust
• Access control (roles/teams) + audit-friendly patterns
• Secure deployment with environment hardening

Upgrade paths

Advanced RAG pipeline + citations + eval loopWorkspaces / multi-tenant teams + admin controlsUsage analytics + cost controls + rate limiting

Launch this foundation →Build something similar →

Pricing reflects scope, integrations, and reliability requirements.

Let’s build something.

Tell me what you’re building. I’ll reply with next steps and a clear plan.

Prefer email? rmngzps@gmail.com →

What happens next

I’ll reply with a scope, estimate, and timeline options.

Budget guidance

Most MVPs start around $6.5k (depends on scope).

Availability

US Pacific (PT) • Remote-friendly.