Hi, I am John

I am a Software Developer
based in Ayr, Scotland

John McCracken

Software Developer at Certass Ltd

A dedicated and talented full stack web developer with experience in a variety of wide ranging projects. Fully up to date with current developments and techniques in the industry and always produce results to the highest standards.

Currently transitioning from a more traditional AWS based LAMP technology to a Microsoft focused environment.This is based mainly around Dynamics 365, Power Automate and DataVerse.

LAMP

AWS

Javascript

Azure

Dynamics

Power Apps

Skills

Amazon Web Services

Amazon Web Services

Certified AWS Sysops Administrator - Associate Certification.

Linux

Linux

Mainly Ubuntu, but some Alpine,Debian and CentOS. Happy on the CLI, working with bash scripts, exiting vim.

PHP

PHP

Laravel, SuiteCRM and Moodle. Up to date with current practices and design patterns. Code to PSR2 standards and SOLID principles. Test with PHPUnit, Behat and Laravel Dusk.

Javascript

Javascript

Mainly Vue, but some React and Angular. Comfortable with SPA development, state management etc.

Dynamics 365

Dynamics 365

Planning, build and migration of company infrastructure to Dynamics and data verse focussed environment. Power Automate and Power BI as the main customisation and reporting tools.

Office 365

Office 365

365 administration: Sharepoint, Exchange. Comfortable setting up and maintaining tenant security/monitoring.

Databases and datastores

Databases and datastores

MYSQL, SQLite, Redis, Memcache, DynamoDB, Elasticsearch and some MongoDB. Comfortable designing databases schemas.

Docker

Docker

Experience of creating images, docker-compose and running containers for development. Limited knowledge of Kubernetes.

Python

Python

Good enough to write Lambda functions and use Boto3 for AWS interaction.

1

IT Manager/Developer

Certass Ltd

April 2020 - Present,

Responsible for managing all aspects if IT, including online services and the infrastructure required to provide these.

Responsibilities:

Responsibility for company technology stack
Technology procedures
Infrastructure and security
Developing and maintaining systems

Software Developer

Warranty Services Ltd

May 2007 - March 2020,

Responsible for company websites, online services and the infrastructure that provide these.

Responsibilities:

Infrastructure and security
Developing and maintaining systems

2

3

Digital Inclusion Trainer

South Ayrshire Council/Ayr College

January 2003 - April 2005,

Trainer for IT projects in the community in partnership with college/local authority

Responsibilities:

ECDL training and marking
Design, plan and deliver bespoke coursework

Projects

Automate AWS security group with CloudFlare IPs

Setting up AWS security groups with Cloudflare

Details

Automate AWS security group with CloudFlare IPs

Automate AWS security group with CloudFlare IPs

This Lambda function to retrieve Cloudflare’s IP address list and update an AWS Security Group and S3 Policies.

Star

Isolating PHP with Docker Container

PHP and Docker for a quick experiment

Details

Codewars

Code Challenges and problem solving.

Details

Isolating PHP with Docker Container

Isolating PHP with Docker Container

Files for a quick tutorial on isolating PHP versions in docker containers.

Star