Astle MacHado

About Astle MacHado

Senior Software Engineer with 5 years of experience building checkout and cart systems for large-scale e-commerce. I work at Pens.com, a mass-customization platform that enables businesses to design and order personalized products at scale. My work focuses on revenue-critical flows such as coupons, discounts, post-checkout customization, and multi-tenant checkout architecture. I build with React, Redux Toolkit(RTK) and JavaScript on the frontend, Node.js on the backend, and AWS serverless services including Lambda, CloudFront, CloudFormation, Systems Manager, Secrets Manager, and CI/CD via CodeBuild and CodePipeline. I rely heavily on observability tools like CloudWatch, Sentry, and Hotjar to drive performance improvements and production stability. I care deeply about clean code, reliability, and measurable impact, and take ownership from system design through production support. I also enjoy mentoring engineers and collaborating closely with cross-functional teams to ship customer-first solutions.

Experience

1. Senior Software Engineer

   Cimpress India

   Jul 2025 — Present · Mumbai, IN

   Checkout & Cart Platform | Performance, Coupons and Multi-tenant ArchitectureReduced p95 checkout latency by ~42%(24s → 14s) by identifying Sentry bottlenecks and eliminating redundant API calls. This directly improved cart→order conversion.Delivered \"New Coupon Experience\" and \"Global Cart Discount\"(threshold-based nudges), increasing Average Order Value (AOV) while reducing rage clicks and negative feedback by ~50%.Designed and delivered multi-tenant checkout architecture following feasibility and risk spikes, enabling multiple tenants to operate seamlessly on a shared platform.Owned and shipped revenue-critical features such as Cart Summary Revamp and View Similar for Out of Stock, and delivered Order Now, Design Later customization that added ~3% incremental top-of-funnel growth with no cannibalisation of the existing customization flow.Led V2 accessory API design adopted by multiple tenants, significantly improving integration performance and data consistency.Owned GA instrumentation for checkout, coupons, and reorder flows, acting as the primary analytics contact for cross-team data alignment.

Education

• St. Francis Institute Of Technology

  Bachelor of Engineering - BE, Computer Engineering

  2016 — 2020

• St. Anthonys Convent High School

  SSC

  2003 — 2014

• Thomas Baptista Junior College Vasai

  HSC, Computer Science

  2014 — 2016