Cleaner daily tracking
Turn bookings, orders, queues, and follow-ups into records your team can see and update.
Lucena City, Quezon · Business Systems Developer
Turn scattered bookings, orders, and follow-ups into systems your team can track.
I help small businesses replace chat-based tracking, spreadsheets, notebooks, and manual follow-ups with web systems for booking, queue, seller, order, admin, and dashboard workflows — backed by Supabase and tested on real devices.
Booking SystemsOrder TrackingAdmin DashboardsSeller ToolsCustomer RecordsStaff AccessMobile-Friendly ScreensTechnical Case Studies
Manual work made trackableBookings, orders, queues, reviews, dashboards
Working portfolio proofMarketplace + QueuePoint SaaS MVP
Protected records and mobile useSafer access, working data rules, and real-device QA
Who I Help
From scattered work to visible operations.
Best fit: small businesses already handling bookings, orders, customer updates, staff assignments, stock, or follow-ups — but still relying on chats, spreadsheets, notebooks, or memory to know what is happening.
Safer user access
Give owners, staff, sellers, and customers the right views so they only work with records meant for them.
Better owner visibility
Show pending work, completed activity, stock concerns, customer flow, and bottlenecks in one place.
Common Client Problems
The problems I look for first.
Broken access, messy records, checkout mistakes, missing dashboards, mobile friction, and processes that depend too much on manual checking.
Broken login or onboarding
Fix auth-state problems, missing profile records, failed onboarding, and pages that break after login.
Messy database tables
Review table structure, relationships, foreign keys, naming, and whether the database matches the real process.
Unsafe access rules
Plan record access so buyers, sellers, staff, and admins only see or change the right information.
Inventory and checkout bugs
Improve stock checks, cart validation, order creation, seller grouping, and checkout failure handling.
Forms that do not save
Debug insert/update errors, validation gaps, wrong selectors, missing fields, and silent JavaScript failures.
Deployment and config issues
Check environment variables, Supabase links, local/cloud differences, CLI issues, and production cleanup.
Services Offered
Focused ways I can help.
Start with one painful process, then build the backend, screens, access rules, and deployment path needed to make it usable.
Database & App Backend Setup
Tables, relationships, login flow, file storage, and app connections for real business records.
User Access & Record Protection
Buyer, seller, staff, owner, and admin access planned around who should control each record.
Deployment & Setup Checks
Check project settings, app links, environment variables, local/cloud differences, and Vercel deployment notes.
Interactive Screens & Dashboards
Forms, dashboards, filters, status updates, cart actions, and app screens using HTML/CSS/vanilla JS.
Marketplace & Seller Tools
Seller onboarding, products, orders, stock checks, tracking, and moderated reviews/ratings.
Debugging & Stabilization
Console debugging, error handling, rollback thinking, mobile checks, and production-readiness cleanup.
Freelance Starting Points
Start with one workflow, not a risky big-bang project.
A good first engagement is a review, fix sprint, or small MVP around one process: booking, order tracking, seller tools, access rules, or a messy prototype that needs to become reliable.
Workflow Review & Supabase Health Check
A focused review for an existing app, database, or prototype. I look at the business process, data structure, login flow, deployment setup, console errors, and mobile behavior, then return a practical fix plan.
- Good first step before a larger build.
- Useful for messy prototypes or stuck Supabase projects.
Booking, Queue, or Internal Dashboard MVP
A small-business operations system based on your actual daily process: appointments, queues, services, staff, status updates, simple owner dashboards, and customer-facing tracking.
- Best for clinics, service shops, repair desks, and appointment-heavy workflows.
- Can start as a guided pilot before expanding features.
Marketplace, Seller Tool, or Admin Panel Build
Seller dashboards, product management, order tracking, review workflows, stock checks, buyer lookup, and admin tools backed by clear data rules and practical JavaScript screens.
- Best for lightweight commerce and operations workflows.
- Focuses on working data rules, not decorative screens alone.
Good Fit
Send the process. I will help turn it into a system.
I am strongest when the work involves records, permissions, status changes, owner/staff views, mobile usability, and processes currently handled through chats, spreadsheets, notebooks, or memory.
What to send
Screenshots, table notes, current URLs, error messages, sample forms, or a plain-language description of how the business works.
What I return
A practical build or fix plan, then working Supabase-backed screens with safer data access, clearer workflows, and mobile behavior checks.
Best first conversation
“Here is how we currently handle bookings/orders/customers. Can you help make this workflow cleaner and trackable?”
Proof Through Working Systems
Proof that the process can become a working system.
Marketplace proves commerce operations: seller products, orders, stock, tracking, and reviews. QueuePoint proves appointment operations: branches, services, staff, queues, settings, and public/customer workflows.
Project 1 · Marketplace
Multi-Seller Marketplace Portfolio Build
Portfolio demoFinal polish stage
Small sellers need product, stock, order, tracking, and review workflows that do not depend on manual checking after every sale.
System builtGuest checkout, seller dashboard, product CRUD,
seller-specific orders, tracking, and moderated
ratings/reviews.
ProofSafer checkout, seller-owned records, stock rechecking,
approved reviews, and Android QA; technical details are in
the case study.
Workflow proven
Product → Cart → Checkout → Seller order → Stock deduction
→ Buyer tracking → Moderated review/rating.
Try this demo path
Browse products, add to cart, checkout as guest, track the order, leave a review/rating, then inspect the seller-side workflow.
- Checkout creates seller-specific orders instead of one confused mixed-seller transaction.
- Seller dashboard handles product, order, stock, and review/comment workflow.
- Real-device Android QA covered landscape, keyboard, and Back behavior.
Supabase BackendDatabase LogicAccess RulesVanilla JSMobile QA
Why it matters
- Reduces manual order and stock checking for small seller operations.
- Separates buyer flow, seller records, and public tracking into clear responsibilities.
- Shows moderated customer feedback instead of uncontrolled public comments.
Project 2 · QueuePoint
QueuePoint Appointment & Queue SaaS MVP
Working MVPGuided-pilot ready
Appointment-heavy businesses need a simple way to manage public booking, branch/location choices, staff/service setup, queue movement, and customer tracking.
System builtPublic booking, branch-aware dashboard modules,
appointments, queue status, services, staff, and
settings.
ProofBranch-separated records, protected owner/staff screens,
edit locks, draft guards, and mobile navigation safety;
technical details are in the case study.
Workflow proven
Public booking → Appointment code → Customer tracking →
Staff update → Queue movement → Owner dashboard.
Try this demo path
Choose a branch/location, book an appointment, save the code, track it, then test dashboard status and queue movement.
- Public booking supports branch/location selection and appointment-code tracking.
- Dashboard modules reload by selected branch: services, staff, settings, appointments, queue, and business data.
- Mobile QA covered sticky nav, Android Back trapping, edit locks, draft guards, landscape keyboard behavior, and real-phone use.
Supabase LoginAccess RulesBranch IsolationVanilla JSVercel
Why it matters
- Gives front-desk staff a clearer view of today’s appointments and queue movement.
- Separates public customer booking from protected owner/staff dashboard work.
- Shows SaaS-style branch isolation without exposing one business location’s records to another.
Where This Applies
The same approach works across different business operations.
The examples can apply to booking, seller, internal admin, hotel, inventory, and service workflows: organize the records, define who can access them, show the status, and make the daily work easier to track.
Booking and queue operations
Appointments, queue status, services, staff, public tracking, and owner/front-desk dashboards.
Commerce and seller operations
Products, stock, orders, checkout, buyer tracking, customer reviews, and seller dashboards.
Internal business tools
Admin panels, customer records, approvals, reports, status changes, and protected team access.
Why I Think This Way
Systems-analysis habits behind modern implementation.
My earlier work in systems analysis, programming, application support, and business software still shapes how I build today: start with the process, identify the records, protect access, handle exceptions, then build the screens around real use.
Business workflow first
I start by understanding how the business actually operates: who enters data, who owns records, what changes status, and where mistakes can cost time or money.
Record ownership and user access
My builds focus on who owns each record, who should see it, who can change it, and how to keep customer and business data separated safely.
Usability beyond desktop screens
I test real mobile behavior: sticky navigation, Android Back, keyboard layouts, landscape screens, form safety, and user-error recovery.
Technical Proof
Technical proof behind the business promise.
This is where the technical proof lives. The homepage explains the business value; these tools show how the systems are protected, connected, deployed, and tested.
Backend / Database
Supabase, PostgreSQL, SQL, RLS policies, RPC functions, Auth, Storage-ready architecture, table relationships, and data ownership rules.
Frontend / Integration
HTML, CSS, vanilla JavaScript, ES modules, DOM workflows, form validation, CRUD screens, responsive layouts, and dashboard UI logic.
Workflow / Deployment
GitHub, Vercel, environment variables, Chrome DevTools, Android remote debugging, QA testing, production cleanup, and technical documentation.
Partner-Supported Services
Optional collaborator support, kept in the right lane.
My core role is building practical business systems. When a project also needs branding, visual content, or app prototype support, D & P Systems can coordinate trusted collaborators while keeping one clear technical point of contact.
Core service: software systems. Optional support: collaborator-assisted design, video, branding, or prototype assets when the project needs them.
Cross-Platform Prototype Support
Mobile or desktop app prototype support can be coordinated through trusted collaborators when a project needs to test an app idea alongside a Supabase-backed workflow.
Video & Visual Content Support
Video and presentation-ready visual assets can be coordinated through trusted strategic collaborators when the software project also needs client-facing materials.
Graphic & Brand Design Support
Logo concepts, basic brand visuals, social media graphics, and presentation-ready design assets can be supported through trusted collaborators when needed.
Real-Device QA & DevTools
Mobile QA that protects real customer and staff use.
The projects were tested on real Android devices so key actions still work when screens are small, the keyboard is open, navigation gets tricky, or users press Back at the wrong time.
Real-phone testing
Checked live pages on Android, not only desktop
resizing
Back-button safety
Reduced confusing exits and navigation loops
Keyboard and landscape
Checked forms when space is tight
chrome://inspect with USB debugging to
inspect live Android Chrome tabs, focus mobile pages, monitor
console behavior, and validate marketplace flows on a real phone.
Navigation hardening
Checkout, tracking, empty-cart return, and dashboard views were adjusted to avoid confusing Android Back loops.
Keyboard-heavy screens
Cart, tracking, and review screens were checked in landscape with the keyboard open, then adjusted for natural scrolling.
Contact-link judgment
Unreliable contact channels were hidden instead of being shown as broken buyer options.
Database Proof
Database structure behind the visible screens.
The marketplace has real relationships behind the screens: sellers, buyers, products, orders, inventory, reviews, ratings, and contact data.
Record relationships
Products belong to sellers, orders connect buyers and sellers, and reviews/ratings attach to real marketplace activity.
Stock and checkout protection
Stock, product status, order totals, and checkout validation are handled as business rules, not just screen labels.
Access planning
The schema supports RLS, seller ownership checks, and safer role-based data access.
Workflow Review
Need a practical business system built around your actual workflow?
Send your current process, screenshots, database notes, or errors. I can help turn manual work into a clearer system for bookings, orders, dashboards, tracking, and daily operations.
Contact
Send the process you want to make trackable.
Describe the business process, dashboard, booking flow, marketplace, or internal tool you need. Screenshots, table notes, database structure, and console errors are welcome.