Macklin Hartley

About Me

Writing

Public Speaking

Certification

AWS Certified Solutions Architect - Associate Expires February 2025 View Certificate

AWS Certified Developer - Associate Expires November 2025 View Certificate

AWS Certified SysOps Administrator - Associate Expires April 2026 View Certificate

Snowflake Hands On Essentials - Data Warehouse Expires January 2025 View Certificate

Experience

• Establishing new subscription activation channels, reducing app store related subscription fees by ~90%.

• Designed data pipelines to extract, transform and load billions of events in under 5 minutes, resulting in doubling email click-rate from 22% to 44%.
• Worked with the back-office and payments engineering teams to develop reliable and secure centralised systems.
• Designed and built a robust and scalable payments platform hosted on Amazon's EKS platform processing over US$1 billion in payments per year.
• Implemented low latency metrics and observability tools for ensuring the availability and reliability of Martech and payments processing, achieving an availability of over 99.95%.
• Helped advocate for culture of continuous delivery, creating a platform that enabled teams to deploy releases frequently (100+ deployments/month) with a high degree of automation.
• Designed the organisation’s first service level agreement, setting the bar for a culture of ownership, accountability, transparency and trust.
• Designed a credit card routing platform to optimise for authorisation rate and fee structure based on various factors including BIN ranges, applying a benefit of up to US$30m in yearly revenue.

• Developed new platform for online application process using ASP.Net Core API’s and a cutting-edge ReactJS front-end.
• Redeveloped tool for gathering supporting documents for applicants, improving speed, uptime and redundancy.
• Integrated live chat system and 2FA into existing applications.
• Developed a prototype for a next-generation CMS using Jekyll static site generator and presented findings to the team.
• Ran presentations to senior management on the benefits of web accessibility.

• Developed an online portal for the Department of Water to manage water resources and licensing
• Lead user-experience and accessibility analyst for online platform
• Added change tracking feature to online retention and disposal application
• Enhanced error handling for Word Document import service
• Assisted in developing responsive stylesheets for mobile-first volunteer application for St John Ambulance

Volunteering