SDG

Sidewalk Developers Group — software development agency

We turn ideas
into source code

SDG designs and builds custom software for business — web apps, mobile apps, and the information systems your operations run on.

Start a project See our work
  • Laravel
  • Vue.js
  • Flutter
  • Cloud hosting

Services

What we build

Six ways we put working software behind your business.

  1. Custom software

    Software shaped around how your business actually works, not the other way around. We scope it with you, build it, and keep it maintained.

    Discovery & scoping · Laravel · Internal tools

  2. Web applications

    Applications that run in the browser and hold up under daily use. Laravel on the back end, Vue.js on the front.

    Laravel · Vue.js · Dashboards

  3. Mobile apps

    Cross-platform mobile apps built with Flutter and Ionic. One codebase, shipped to both iOS and Android.

    Flutter · Ionic · iOS & Android

  4. Business information systems

    Point of sale, inventory, and accounting systems that keep your numbers accurate and your stock accounted for.

    POS · Inventory · Accounting

  5. UI/UX design

    Interfaces planned before a line of code is written. We design and prototype in Figma, then hand off screens developers can build without guesswork.

    Figma · Wireframes · Prototypes

  6. Hosting & domains

    We host what we build and manage what surrounds it — cloud servers, domains, and certificates — so your software stays online.

    Cloud & server hosting · Domain management · SSL

Selected work

Systems in daily use

Three businesses run on systems we built for them — and three products we build and run ourselves.

Fig. 01 — Hyperwash / inventory + POS system

Case 01 — Car care

Hyperwash

An inventory and POS system that gives Hyperwash a single view of daily sales and stock.

UI/UX design · Build · Laravel

Fig. 02 — Alcobilla / inventory + POS system

Case 02 — Retail

Alcobilla

We designed and built Alcobilla's inventory and POS system around the way its counter actually operates.

Product design · Build · Laravel

Fig. 03 — Dr. Pi Water / inventory + POS system

Case 03 — Water refilling

Dr. Pi Water

Dr. Pi Water records every sale and tracks every unit of stock through a POS and inventory system built by SDG.

UI/UX design · Build · Laravel

Cognicase landing page — practice management for modern law firms
Fig. 04 — Cognicase / practice management

Product 01 — Legal tech

Cognicase

Practice management for law firms and independent lawyers — clients, cases, calendars, documents, and billing in one workspace.

SaaS · Clients & cases · Billing

Deployer landing page — zero-downtime deploys on servers you own, with a live deploy terminal
Fig. 05 — Deployer / deployment platform

Product 02 — DevOps

Deployer

A self-hosted deployment platform for teams that ship to their own servers — atomic zero-downtime releases, one-click rollback, and live logs over SSH.

Self-hosted · SSH · Audit trail

Markdown PDF Studio editor with live preview
Fig. 06 — Markdown PDF Studio / markdown → PDF

Product 03 — Document tools

Markdown PDF Studio

A private markdown-to-PDF studio that runs entirely in the browser — live preview, math and diagrams, and crisp vector PDF export.

In-browser · Offline · Vector PDF

About

Who we are

We started SDG in 2022 to build the tools businesses run on — point of sale, inventory, and accounting systems, SaaS products, and the custom software in between.

We keep the team small and the work direct. The people who design your system are the same people who build it and support it after launch. That's how the software stays honest, and how it stays maintained.

Est.
2022
Focus
Business systems & SaaS
Stack
Laravel · Vue.js · Flutter

The stack

Backend
Laravel · Drupal · PHP · MySQL · C# / .NET · REST & API design
Frontend
Vue.js · JavaScript · Tailwind CSS · Nuxt · React
Mobile
Flutter · Ionic
DevOps
Linux server administration · Nginx · Docker · Proxmox · CI/CD pipelines · AWS · DigitalOcean · Acquia Cloud
Practices
System architecture · Database design & optimization · Automation · AI-assisted development · Accessibility

The team

  • Jerwin Arnado CEO
  • Ricardo Golez CTO
  • Jad Diaz UI/UX & graphic designer
  • Ian Cliff Gellaco Developer
  • Alexander Jason Madriaga Developer
  • Juan Mario Chiu Developer
  • Ryan Garde Developer
  • Louie Gene Siscar Developer

Contact

Tell us what you're building

Send a message about your project and we'll reply by email with next steps.