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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 practicies for building web applications, and reviews + photos of food and hotels in London.

Go ahead and explore my site, search for something specific if you fancy. Reach out to me by any of these various means below.

Portfolio Posts - Page 2

Realtime two-way Android based Safety Monitor tablet.

An Android powered tablet client application that uses Google Cloud Messaging (GCM) to establish a two way realtime connection (using XMPP via the Android OS) to receive and relay events for essential safety monitoring. Due to the volume of data driven, and the number of simultaneous connections; it was essential this Android app would scale and be able to deliver and function 100% of the time, never with a chance of user data loss. The data could be processed in a powerful C# .NET backend. The server-side XMPP connection to GCM was also a C# .NET Worker Role, running in Microsoft Azure. Read more...

Multilingual Job Board with geospatial search capabilities.

This job board aimed at supply chain roles in Europe is able to automatically display the language relevant to the current user, as well as offer sophisticated geospatial search tools. Jobs and Candidates are then auto-matched for each job based on currency/salary (the jobs can show their currency in any known currency available), skills, and location. Location is based on specified travel distance from the desired location, which could be specific towns or continents, to sorting the relevant jobs is priority. Read more...

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

    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

    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...