Dennis Clark Email & Phone Number

Sydney, NSW, AU

Sydney, New South Wales, Australia

• Provide technology support for an AWS organisation with separate accounts for development, testing and production for Intranet and eCommerce applications
• Applied a security baseline to the existing AWS organisation with AWS Config and GuardDuty using CloudFormation templates and open source software
• Implemented centralised security and management including AWS Single Sign-On with Active Directory and a central S3 bucket for remote state for all Terraform workspaces
• Introduced using Infrastructure as Code with Terraform as standard practice for AWS infrastructure changes for the business
• Automated the infrastructure setup for the business's core application environment with Terraform and used it to deploy and maintain multiple isolated testing and training environments
• Developed a server provisioning library in Ansible that is distributed to S3 buckets with Terraform and deployed to EC2 instances using Systems Manager, and used to build custom AMIs with Packer

Sydney, New South Wales, Australia

• Set up an AWS organization for Stratastar following AWS recommended practices implemented using CloudFormation, AWS Config, GuardDuty, Prowler, and open source software for improved security, monitoring, and change.
• Codified Stratastar’s AWS infrastructure (virtual networking, DNS, CFML/MySQL Web application stack, S3, access control) in Terraform and successfully migrated it into the new AWS organization using Terraform Cloud

Sydney, Australia

• Led the migration of Century 21 Australasia (C21) Real Estate CRM and other IT systems from a private datacentre to AWS, including migrating VMs and databases and implementing Application Load Balancers
• Designed and implemented an AWS architecture to run a port of C21's Real Estate CRM systems for Better Homes & Gardens Real Estate Australia (BHGRE) under Elastic Container Services, using Terraform, Ansible, and AWS.
• Implemented scalable AWS Elastic Beanstalk environments for hosting C21 and BHGRE Wordpress sites developed by a 3rd party agency and implemented Bitbucket pull request vendor workflow
• Managed AWS infrastructure by reviewing AWS monthly bills, tagging resources by business unit, resizing resources to match actual use, eliminating unneeded services, importing unscripted resources into Terraform, and.
• Led the development team's adoption of code reviews through pull requests, Git branch and release workflows, and worked with the team's Scrum master to leverage other key Agile development practices such as.
• Performed maintenance work for the legacy Web applications (Adobe ColdFusion 9 & SQL Server 2012-2016)

Sydney, Australia

• Developed fixes and enhancements for legacy CFML-based B2B web portal applicationsReviewed and retired over 40 redundant websites and web portal applications, consolidating remaining sites and applications to.
• Migrated legacy CFML applications from Adobe ColdFusion 8 on Windows Server 2003 to Adobe ColdFusion 11 on Windows Server 2012
• Performed security remediation of CFML applications in response to external security assessment including working with the network security team to test and deploy fixes on their load balancers
• Migrated CFML application source control from Subversion to Git, and implemented git-flow for release management
• Documented of legacy systems and support procedures, and trained external support team for handover

Sydney, Australia

• Designed, implemented, and maintained various content-driven Web applications built on CFML (ColdFusion 8 and Lucee 4) and the FarCry open-source CMS
• Contributed enhancements to the FarCry CMS open-source codebases
• Supported key student and teacher Web applications for NSW Education Standards Authority (NESA) (formerly the NSW Board of Studies, Teaching and Educational Standards (BOSTES))
• Lead the migration of Daemon's source control system from Subversion to Git including lossless conversion of key legacy repositories
• Implemented release management process for BOSTES Web applications using Atlassian JIRA and git-flow
• Implemented Docker development workflow and production deployment pipeline for BOSTES Web applications

Charlotte, North Carolina Area

• Developed and supported numerous Enterprise Web applications (Internet and Intranet) with ColdFusion 6 and SQL Server 2000
• Integrated ColdFusion applications with enterprise core and vendor systems using scheduled and on-demand data flows (file transfer and APIs)
• Designed Web application security policy and implement them in the corporate Web application firewall with support of the network security team
• Introduced Visual SourceSafe for source control of ColdFusion applications and maintained the Visual SourceSafe repositories

Sydney, Australia

Web application development using CGI/Perl, C, and shell scripts in a Unix environment.

Bachelor Of Science, Computer Science

Activities and Societies: UTS Programmers' SocietyMember of UTS Programmers Society; served as President in 1996

Graduate Certificate, Information Security & Privacy