Portfolio

Selected work — built end-to-end.

A representative slice of the projects I've taken from blank page to production — marketing sites, iOS and Android apps, internal tools, dashboards, and everything in between.

10+Years of experience
End-to-endDesign & code
100%Direct client contact
Live website · 2025 Visit motionrevivept.com

Motion Revive PT

A complete website and custom back-office build for Danielle Cywinska, DPT, an in-home physical therapy practice serving McHenry County, Illinois. Marketing pages, service-area coverage, online consultations, and a private patient/staff portal — all custom PHP, no template.

  • Custom PHP backend — patient & staff portals, not WordPress
  • Book a Free Consultation flow replaces phone-tag
  • Local SEO optimized for Crystal Lake, Algonquin, Woodstock, Huntley
  • Visit Tracker — patients review appointment history

HTML · CSS · JavaScript · PHP · MySQL · Custom admin · IONOS

Dashboard 2024

Operations KPI dashboard

Real-time operations view consolidating seven spreadsheets into one place. Role-based access, daily email digests, and exportable reports.

  • 4 hours/week saved across ops team
  • Zero Excel errors since launch

PHP · MySQL · Chart.js · Bootstrap

Website 2024

Professional services lead site

Lead-generation site for a consulting firm. Custom CMS for case studies, integrated with their CRM, designed to convert qualified visitors.

  • 3.2x inquiry volume in first quarter
  • 98 Lighthouse performance score

HTML · CSS · JavaScript · PHP · HubSpot API

Business App 2023

Sales analytics portal

Interactive sales analytics over a normalized data warehouse. Forecasts, cohort views, pipeline drill-downs, and exportable CSV/Excel reports.

  • 12 teams using it daily
  • Weekly reports generated in seconds vs. days

PHP · PostgreSQL · Chart.js · jQuery · REST API

E-commerce 2023

Boutique storefront

Custom storefront for a boutique retailer — Stripe checkout, inventory sync with their back-office system, mobile-first product browsing.

  • 40% mobile conversion lift
  • Zero inventory mismatches after sync launch

PHP · Stripe · MySQL · Tailwind · REST integrations

Business App 2023

Inventory management tool

Replaced a multi-tab Excel workbook with a proper web app — searchable inventory, low-stock alerts, supplier reorder workflows, full audit log.

  • 5 people working concurrently without conflicts
  • Automated reorder alerts replace manual checks

PHP · MySQL · Vanilla JS · CSV import/export

Mobile App 2024

Field service companion app

iOS & Android app for field technicians — scheduled jobs, route maps, offline work order capture, and photo proof-of-completion synced to the back office.

  • Offline-first — works in the field, syncs later
  • Published on App Store & Google Play

React Native · Expo · SQLite · REST API · Firebase Push

Mobile App 2023

Personal finance tracker

Cross-platform personal finance app with budget goals, recurring expense detection, and beautiful charts. Secure biometric login, local-first data, optional cloud sync.

  • 4.8★ average rating across stores
  • Biometric Face ID / fingerprint unlock

Flutter · Dart · Firebase · Plaid integration

Website 2022

Nonprofit awareness site

Mission-focused single-page site with donation integration, a volunteer sign-up flow, and accessibility audited to WCAG 2.1 AA.

  • WCAG AA certified accessibility
  • Donations tripled in first campaign

HTML · CSS · JavaScript · Stripe · Accessibility-first

The work above includes anonymized and representative examples. Case-study details available on request.

Your project could be next

Tell me what you're trying to build.

Every inquiry gets a real reply from me — no forms sitting in a queue, no sales pitch.

Start a project daniel@cywinskidigital.com (773) 592-5598