Systems Architect
2016 - PRESENTAutomation Exchange- Built CI/CD from scratch using GitLab.
- Migrated the C# background service to Sidekiq workers.
- Guided and coached a team of five developers.
- Designed and architected the overall system.
- Built a full API with 80%+ test coverage.
Technologies: Multitenancy, Continuous Delivery (CD), Amazon Web Services (AWS), REST APIs, Elasticsearch, Microsoft SQL Server, C#, Linux, Sidekiq, RubyOwner
2007 - PRESENTJade IT CC- 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 APIs (Facebook, Twitter, Instagram, MotorMouths) for different projects.
- Implemented a document management system with fuzzy searching and an API in Rails.
Technologies: Laravel, Amazon Web Services (AWS), Elasticsearch, Symfony, Sinatra, Ruby on Rails (RoR), Ruby, PHPTechnical Analyst
2015 - 2016Dimension Data- Developed technical specifications.
- Implemented technical specifications.
- Tested and released changes.
Technologies: ServiceNow, JavaScriptSenior Developer
2013 - 2015Tutuka- 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 ran Ubuntu 12.04 infrastructure to support the Elasticsearch setup, including taking them through PCI compliance.
Technologies: PCI, Ruby, Microsoft SQL Server, Adobe ColdFusionLead Developer
2012 - 2013Everlytic- 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: REST APIs, Google Analytics API, Twitter API, Facebook API, MySQL, PHPSystems Developer and Head of Development
2009 - 2012Branded Internet- Created an API to enable wholesale selling of ADSL and other ISP services.
- Implemented source control for the codebase.
- 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: Multitenancy, Linux, PHPDeveloper
2006 - 2007Cherry Creek Software- 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: Visual Basic 6 (VB6), JavaScript
Software Developer in Johannesburg, Gauteng, South Africa
Member since July 22, 2014
As an expert full-stack developer with an in-depth knowledge of the internet and web applications, Jurgens prides himself on understanding client requirements and delivering code and systems to meet these requirements. He has worked on a wide range of products, including web applications, APIs, and integrations with companies like MasterCard and Visa.
Jurgens is now available for hire
Portfolio
- Automation ExchangeMultitenancy, Continuous Delivery (CD), Amazon Web Services (AWS), REST APIs...
- Jade IT CCLaravel, Amazon Web Services (AWS), Elasticsearch, Symfony, Sinatra...
- Dimension DataServiceNow, JavaScript
Experience
- REST APIs 8 years
- Elasticsearch 7 years
- Ruby 5 years
- Amazon Web Services (AWS) 5 years
- PostgreSQL 3 years
- Continuous Deployment 2 years
- React 2 years
- Ansible 1 year
Availability
Part-time
Preferred Environment
Laravel, Ruby, Amazon Web Services (AWS), AWS, Ubuntu, Sublime Text, Git
The most amazing...
...experience was creating a mass email marketing system that enables the client to send hundreds of thousands of emails a month in South Africa.
Employment
Experience
- ProxES
ProxES is an Elasticsearch application framework that allows a developer to add security, access control and basic reporting to any Elasticsearch cluster.
- Ready to Sendhttps://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.
- Sequel::Elasticsearchhttps://github.com/jrgns/sequel-elasticsearch
Sequel::Elasticsearch allows you to transparently mirror your database, or specific tables, to Elasticsearch. It's especially useful if you want the power of search through Elasticsearch but also the sanity and structure of a relational database.
- Logstash CloudWatch Pluginhttps://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.
- EagerELK - Elasticsearch, Logstash, and Kibanahttps://blog.eagerelk.com
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.
- Personal Bloghttp://jrgns.net
A blog used to record the progress of my technical knowledge and skills.
- Logstash Tutorial: Using Logstash to Streamline Email Notifications (Publication)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, JavaScript, CSS, Visual Basic 6 (VB6), C#, C#.NETFrameworks
Laravel, Sinatra, Ruby on Rails (RoR), Bootstrap, SymfonyLibraries/APIs
REST APIs, Sidekiq, Sequel, API Development, Pundit, Rack, React, jQuery, Facebook API, Twitter API, Google Analytics APITools
Logstash, RSpec, Rubocop, AWS CloudWatch, JSX, AWS SES, Amazon SQS, AWS CodeDeploy, GitLab, Ansible, Adobe ColdFusion, Git, Sublime TextParadigms
Object-oriented Programming (OOP), Object-oriented Design (OOD), DevOps, Continuous Integration (CI), Continuous Delivery (CD), Scrum, Continuous Deployment, Agile Software Development, Event-driven ProgrammingPlatforms
Ubuntu, AWS EC2, Amazon Web Services (AWS), LinuxStorage
Elasticsearch, MySQL, PostgreSQL, Microsoft SQL Server, RedisOther
Freelance Developer, Architecture, Multitenancy, APIs, AWS, PCI, ServiceNow
Education
- Master of Science degree in Computer Science2004 - 2007University of Johannesburg - Johannesburg, South Africa
- Bachelor of Science degree in Computer Science, with Honors2000 - 2004University of Johannesburg - Johannesburg, South Africa
