Mastering MACH Architecture & Orchestration with Sezin Cagil of Dr. Martens & the MACH Alliance

Smooth Scaling: System Design for High Traffic

In this episode, Sezin Cagil, Head of Unified Commerce Technology at Dr. Martens and MACH Alliance ambassador, shares hard-won insights on implementing and scaling MACH architecture in real-world environments. She explores how to approach modular migrations, manage complex vendor ecosystems, and prepare systems for high-traffic events. Beyond the tech, Sezin highlights the importance of team readiness, operational maturity, and aligning architecture with business needs. A must-listen for anyone navigating composable commerce or modern retail infrastructure.

Episode page

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• (00:00) - Intro Intro & What MACH Really Means
• (02:27) - How Sezin Accidentally Joined the MACH Movement
• (03:56) - From Monoliths to MACH: The Shift in Retail Tech
• (08:18) - Shopify, Complexity & When MACH Fits
• (11:04) - Inside a MACH E-commerce Architecture
• (14:52) - Aligning Tech Decisions with Business Needs
• (18:30) - Moving from Monolith to MACH: Benefits & Pitfalls
• (21:43) - Start Small: The Right Way to Transform
• (26:21) - Preparing for Traffic Peaks & Vendor Alignment
• (33:38) - The Queue-it Story: Handling Surprises in Peak Events
• (37:41) - Defining Scalability—Sezin’s Final Take

Sezin Cagil is Head of Unified Commerce Technology at Dr. Martens, leading the teams through digital transformation and supporting omnichannel strategy. With expertise in agile delivery, composable architecture, and MACH principles, she drives seamless customer experiences across digital and retail channels. Previously, she led digital delivery at Selfridges and Costa Coffee, scaling international eCommerce platforms. As a MACH Alliance Ambassador, Sezin advocates for modern, modular technologies and contributes to industry thought leadership.

This podcast is hosted by José Quaresma, researched by Joseph Thwaites and produced by Perseu Mandillo.

© Queue-it, 2025