John Mortlock is a seasoned lead developer with nine years in software roles and a long history building commercial systems for the hospitality sector, including reservation/table management and rostering/payroll platforms. He combines hands-on product development with operational ownership, running in-house services from CMS and knowledge bases to CI, web proxy and a bespoke VPN that links directly to clients. As a technical lead at SeaLink and now leading development at Liquor Marketing Group, he brings practical experience across POS, workforce systems and cloud infrastructure. John also contributes to major open-source tooling—fixing cross-account Docker asset uploads and enhancing service discovery in the AWS CDK—demonstrating fluency in cloud-native problems. Based in Adelaide, he pairs a Computer Systems Engineering background with a pragmatic, security-minded approach to integrating DevOps and application concerns.
9 years of coding experience
20 years of employment as a software developer
Computer Systems Engineering, Computer Software Engineering, Computer Systems Engineering, Computer Software Engineering at University of South Australia
The AWS Cloud Development Kit is a framework for defining cloud infrastructure in code
Role in this project:
Cloud Engineer / Infrastructure Engineer
Contributions:10 reviews, 6 commits, 7 PRs in 1 year 4 months
Contributions summary:John contributed to the AWS Cloud Development Kit (CDK) by addressing issues related to Docker image uploads across accounts and supporting API-only services within DNS namespaces. They fixed a bug in the CLI for cross-account docker image asset uploads, and they added functionality to the service discovery component. The user also implemented a feature to propagate tags in job definitions.
Contributions:4 pushes, 2 branches, 1 issue in 6 years 5 months
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John Mortlock - Lead Developer at Liquor Marketing Group