Hi, thanks for visiting!

My name's Sam Kelleher, and I am a Senior Full-Stack Web Developer / Software Architectbased 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.

Mystery Shopping Yourself

So you've hired temporary workers to provide a presence for you at a trade show, you're not there yourself since you're networking with other business leaders at the event, so how do you know that the 'fort is being held down'. Read more...

Thirdparties - the biggest bottleneck to IPv6 adoption.

The Internet is changing. The problem is, some parts change faster than others. If you need a stack supporting IPv6 - you might struggle. Popular providers are still lagging in their offerings, which means picking a provider with lower expertise might be needed, or even bringing hosting in house. Here we look at the major bottlenecks with IPv6 adoption. 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...

The importance of due-dilligence when dealing with clients.

Doing business can be tricky. Whilst you might think you'll never have any problems, it's good to be prepared and know who you are dealing with. These are my practical tips and insight for finding out and investigating the backgrounds of people and companies you do business with. 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...

My Twitter wish list for developers

Twitter is a big platform, but could be improved - my wishlist. Read more...

10 tips for preparing for meetups and conferences.

Going to any type of conference or mid-week evening tech meetup is a valuable treasure trove of people you might want to work with. This might be new co-workers, creative and intelligent minds to share with, and clients and new employers. Here are my top ten tips (and a bonus tip) to help you get the best out of events like this. Read more...

7 best-practicies and privacy considerations to follow when choosing a CDN provider

Using content distribution networks (CDNs) to globally distribute static assets for your website or web appoication, such as it's images, JavaScript files, videos and downloads etc, is increasingly common. It's common because they are reliable systems, cheap to use, easy to get setup on, and take a chunk of work off developers from having to build and maintain these systems themselves. I've devised a list of seven tips and best-practicies to look out for when picking which company should be your CDN provider. Read more...