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My name's Sam Kelleher, and I am a Senior Full-Stack Web Developer / Software Architect based in London. This website mostly contains a sample of work from my portfolio, tips, and best practices for building web applications.

All posts tagged Single Page Application

Local first: Travel Itinerary Planning App

Local first: Travel Itinerary Planning App

This is a local first app (an app without a backend) for tracking a users travel, so think hotel bookings, reservations, flights and trains. Then there is the various loyalty programs offered by airlines, and keeping track of each flight and award. Putting that information into a manageable timetable and tracking the associated costs and expenses. These are the issues I addressed to improve when making this offline first app. Read more...

In-house tooling: Powerful CRM Tooling

In-house tooling: Powerful CRM Tooling

Building a product for a business is nothing without an empowered team behind it; equipped with capable tooling to enable them to do their best. As part of a project to build a customer loyalty platform, the business also needs tooling to view sales data, view customer profiles, their loyalty history, see a unified view of communications, their 'touch point' activity with the business; as well as the ability to modify and control the various bells and whistles of the platform. Read more...

MacroMealPrep App

MacroMealPrep App

I created this as a side project in my spare time as a way to plan ahead the food I would need to eat in a given week. The saying goes, "if you don't plan then you plan to fail". This goal of this app is different to other apps like MyFitnessPal which are geared around weight loss, and don't allow you to make plans in advance. Merely, they just track the food you eat, as and when you eat it. With my app, I wanted to put advance planning first, meaning, during the week, I would not need to spend mental energy thinking about what I should eat, when, or where. Read more...

Dictionary Based Password Generator - Cross-Platform Chrome App

Dictionary Based Password Generator - Cross-Platform Chrome App

I've built a pure JavaScript Chrome App that generates random dictionary based passwords that are strong and memorable; which you copy to your clipboard to use. Thanks to the Chrome environment, it's multi-platform and can run anywhere Chrome can (Windows, OSX, Linux, Mobile) and appears as a Native application. Read more...

Backbone + WebSocket Single Page Application for Car Dealerships

Backbone + WebSocket Single Page Application for Car Dealerships

A online and packagable application built using Backbone.js + Marionette.js, running on a WebSocket enabled C#/SQL backend. Being a Single Page Application (SPA), the application runs very natively, with fast performance between screen loads, and can handle transient network errors as users dip in and out of WiFi coverage. Read more...

Responsive, Realtime, Customisable, Interactive Dashboard

Responsive, Realtime, Customisable, Interactive Dashboard

This is a dashboard for a health and safety monitoring product I built. It has numerous unique features, and complex backends since the dashboard must effortlessly crunch potentially large datasets and summarize them in simple tabular graphs or numbers. Read more...

Quick and easy credit card payment page

Quick and easy credit card payment page

This simple, static, and responsive payment page allows customers to simply enter the value they need to pay and enter their payment information and complete payment with a single click. Read more...

Calendar Based Booking System

Calendar Based Booking System

This online booking and availability system has the functionality to show to both customers and staff members the same UI but with different enabled functionality. Staff can use the same system to view availability with granular detail, and book on behalf of customers (such as over the phone), while customers can use the system to book themselves. By using this adaptive UI technique saves time and costs as no separate 'staff only' system is required to make bookings. Read more...

Interesting Login Screen

Interesting Login Screen

This login screen makes things a little bit more interesting for the end users by displaying an inspirational photo on the login screen. The images would be sourced to show ones relevant to the user (such as from their own user-uploaded gallery) from where their previous login was identified but a password re-prompt is necessary for certain operations. Read more...

Estate Agent Management Platform

Estate Agent Management Platform

A web-based and responsive application for estate agents to handle the day-to-day rental agreements of properties leased out to tenants on behalf of their owners. The application allows the tenants themselves to login and access the platform, as well as the landlords.  Read more...