Jurgens du Toit

Johannesburg, Gauteng, South Africa

Member since July 22, 2014

As an expert full-stack developer with a deep knowledge of the internet and web applications, Jurgens prides himself on his ability to understand client requirements and deliver code and systems to meet these requirements. He has worked on a wide range of products, including web aapplications, APIs, and integrations with companies like MasterCard and Visa.

Jurgens is now available for hire

Hire Jurgens

Portfolio

Tutuka
ColdFusion, MS SQL, Ruby, PCI
Jade IT CC
PHP, Ruby, Rails, Sinatra, Symfony
Everlytic
PHP, MySQL, Various APIs

Experience

JavaScript, 7 years
Elasticsearch, 5 years
Ruby, 5 years
Amazon Web Services (AWS), 5 years
Continuous Deployment, 2 years
React.js, 2 years
PostgreSQL, 1 year
Ansible, 1 year

Availability

Part-time

Preferred Environment

Git, Sublime Text, Ubuntu, AWS

The most amazing...

...experience is creating value through simple code.

Employment

Senior Developer
Tutuka
2013 - PRESENT
- Implemented a log data store using Elasticsearch, Logstash and Kibana.
- Designed and implemented an API proxy to enable the rapid integration of third party APIs.
- Debugged ISO8583 financial transactions.
- Assisted in integrations with MasterCard and Visa for international clients.
- Set up and run Ubuntu 12.04 infrastructure to support the Elasticsearch setup. This includes taking them through PCI compliance.
Technologies: ColdFusion, MS SQL, Ruby, PCI
Owner
Jade IT CC
2007 - PRESENT
- Designed and developed a system to manage rentals and rental payments.
- Conducted basic data mining for a local university to determine the achievements of its first year students.
- Managed and monitored the AWS infrastructure for a small mobile application company.
- Integrated with various API's (Facebook, Twitter, Instagram, MotorMouths) for different projects.
- Implemented a document management system with fuzzy searching and an API in Rails.
Technologies: PHP, Ruby, Rails, Sinatra, Symfony
Lead Developer
Everlytic
2012 - 2013
- Migrated the version control system from SVN to Git.
- Integrated with the Facebook, Twiiter and Google analytics APIs.
- Mentored the development team in good design and best coding practices.
- Expanded the testing infrastructure to get more code under test.
- Guided the integrations team in developing solutions needed by clients.
Technologies: PHP, MySQL, Various APIs
Systems Developer and Head of Development
Branded Internet
2009 - 2012
- Created an API to enable wholesale selling of ADSL and other ISP services.
- Implemented source control for the code base.
- Expanded systems to enable quicker resolution of support queries.
- Designed and implemented a new customer portal to enable quicker go-live for new clients.
- Mentored the development team in best practices and design methodology.
Technologies: PHP, Linux
Developer
Cherry Creek Software
2006 - 2007
- Developed a questionnaire system implemented on handhelds in JavaScript.
- Increased the usability of the company's core product by resolving bugs and improving the flow of the product.
- Implemented a simple spell checker to allow fuzzy matching of words sent in a SMS campaign.
- Created a CMS for an international customer.
- Consulted on the needs of international clients.
Technologies: JavaScript, VB6

Experience

ProxES (Development)
http://gitlab.com/eagerelk/proxes
ProxES is a Elasticsearch application framework that allows a developer to add security, access control, and basic reporting to any Elasticsearch cluster.
Ready To Send (Development)
https://members.readytosend.com
A mass email marketing system built using PHP, Laravel, and AWS services like SES, SQS, EC2, and RDS. The system enables the client to send hundreds of thousands emails a month to the real estate industry in South Africa.
EagerELK - Elasticsearch, Logstash, and Kibana (Other amazing things)
This is a blog about the ELK stack - Elasticsearch, Logstash, and Kibana. On it you can learn how to set up the various products, as well as use them in various ways.
TerrorView Back-end and API (Development)
My involvement in the TerrorView project included building out the admin interface, API and designing the data pipeline. We pull information from a web scraper, analyze it to determine its threat level, and then make it available to mobile apps through an API.

The admin interface enables admins and analysts to see and manage intel items, guides and analysis pieces. The API makes all the information gathered by the data pipeline available to the mobile applications.
Logstash CloudWatch Plugin (Development)
https://github.com/EagerELK/logstash-input-cloudwatch
This Logstash plugin pulls statistics on various metrics from the AWS CloudWatch service on regular intervals. This allows the user to import data from CloudWatch into data systems such as Elasticsearch. Built in Ruby.
Bayes as a Service (Development)
A proof of concept web service that uses the Bayes algorithm to classify documents and text. Built using Ruby, Sinatra, Sidekiq, and Bootstrap.
The Logstash Config Guide (Other amazing things)
After experiencing some frustration with the Logstash documentation, I decided to do something about it and started writing this book!
Personal Blog (Other amazing things)
http://jrgns.net
A blog used to record the progress of my technical knowledge and skills.
Logstash Tutorial: Using Logstash to Streamline Email Notifications (Publication)
https://www.toptal.com/java/using-logstash-to-streamline-email-notifications
Toptal engineer Jurgens du Toit looks at the possibility of using Logstash to regain control of your inbox and make your error emails manageable again, all without changing a single thing in your app. Logstash can effectively leverage the power of Elasticsearch and Amazon SNS to streamline email notifications and save time.

Skills

Languages
Ruby, PHP, SQL, CSS, JavaScript
Frameworks
Sinatra, Laravel, Bootstrap, Symfony2, Ruby on Rails (RoR), AngularJS, Silex
Libraries/APIs
API, Sidekiq, Sequel, jQuery, React.js
Tools
Logstash, AWS CodeDeploy, GitLab, AWS RDS, AWS SQS, AWS SES, Ansible, Gimp
Misc
Elasticsearch, JSX, AWS CloudWatch
Paradigms
Scrum, Object-oriented Programming (OOP), Object-oriented Design (OOD), Continuous Deployment, Event-driven Programming, Agile Software Development
Platforms
AWS EC2, Ubuntu, Amazon Web Services (AWS)
Storage
MySQL, PostgreSQL, Redis

Education

Master of Science degree in Computer Science
University of Johannesburg - Johannesburg, South Africa
2004 - 2007
Bachelor of Science degree in Computer Science, with Honors
University of Johannesburg - Johannesburg, South Africa
2000 - 2004

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