Xinhang “Antony” Mai

Technical Product Manager | Applied AI, Automation & Commerce Systems

London, United Kingdom [email protected] +44 7934 918940 linkedin.com/in/maixinhang xinhang.cv

Professional summary

Technical Product Manager with 5+ years across Amazon commerce, multi-channel retail operations and applied AI. Owns a shared internal commerce platform from product definition and workflow design through production delivery, translating business requirements into automation, AI-assisted decisions and measurable commercial outcomes, with hands-on delivery across TypeScript, NestJS and PostgreSQL.

Experience

e-Commerce Manager

4Feet Retail Ltd | Trading as 4Feetshoes

Nov 2021 – Present

London, United Kingdom

Applied AI & Agentic Workflow Transformation Early 2025 – Present

Own product direction and production delivery for AI-assisted workflows on the internal operations platform, turning reporting into decision support and automated execution.

  • Delivered an Amazon listing remediation workflow that processed 1,600+ issues across 800+ SKUs/ASINs in 81 minutes versus an estimated 133+ manual hours, resolving 98.9% autonomously in a representative UK batch.
  • Scaled Amazon remediation to 6,400+ workflow runs across 12 marketplaces for stores with approximately 60,000 SKUs each, using around 300 reusable, task-specific agent capabilities.
  • Defined the product governance and risk controls required for automated Amazon listing changes, including schema validation, listing-only permissions, version history, controlled iteration limits, human escalation and post-submission verification.
  • Used daily Google Merchant Center, Shopify and inventory reporting to detect a 10x+ footwear demand spike on the day it emerged and prompt pricing, stock and purchasing actions.
  • Established a repeatable multi-agent delivery model covering implementation, separate review, debugging and testing stages, while retaining ownership of requirements, acceptance criteria, architecture and production release.

Commerce Systems & Internal Platform Nov 2021 – Present

Owned the product direction and delivery of an internal platform supporting multi-channel sales, purchasing, product data and central warehouse workflows.

  • Owned platform product planning and delivery from its initial 2022 launch through 3+ major releases and 200+ incremental releases.
  • Translated requirements across multi-channel sales, purchasing, product data and central warehouse operations into prioritised release scope and production workflows.
  • Automated product-data and marketplace workflows across Linnworks, Shopify, Walmart, Worten, Debenhams and CDiscount, reducing manual channel administration.
  • Directed the platform’s evolution from legacy data integrations into a PostgreSQL- and NestJS-based service architecture, enabling new business workflows and broader marketplace automation.
  • Defined resilience and recovery requirements and led an approximately 80-minute production hosting migration with zero data loss, reducing monthly costs by 33% while increasing compute and storage capacity.

Overseas E-Commerce Specialist

Guangzhou Rantion Trading Co., Ltd.

Sep 2020 – Aug 2021

Guangzhou, China

Amazon North America Operations 2020 – 2021

Managed Amazon North America operations for RV accessories and lighting.

  • Delivered US$900,000 in quarterly overseas sales across Amazon North America categories.
  • Maintained an Amazon Ads conversion rate above 12% and Total Advertising Cost of Sales (TACoS) below 5% using a custom analytics model.
  • Developed YouTube influencer outreach and coordinated inventory planning, cross-border fulfilment and Amazon Global Logistics.

Earlier leadership

Vice President of Technology Services

Enactus of SYSU

Sep 2016 – Jun 2020

Led a six-member technical services team, assessing technical feasibility and delivering online solutions for cross-campus social-impact programmes. Supported initiatives in quality education, resource reuse and sustainable development that reached 5,000 people and generated nearly CN¥25,000 in economic benefit.

Education

Sun Yat-sen University

BSc Economics & Finance

Sep 2016 – Jun 2020

Awards

Selected modules: Econometrics · Operational Research · Supply Chain Management · Corporate Finance

Core capabilities

Product & delivery: Technical product ownership Product definition Business process analysis Requirements definition Acceptance criteria Workflow design Production delivery

Technical stack: TypeScript NestJS PostgreSQL Prisma ORM Docker Portainer AWS S3

AI & agent systems: Agentic workflow design Guardrails and human escalation Schema validation Multi-agent delivery Mastra.ai LangChain Langfuse observation

Commerce & APIs: Amazon SP-API Shopify Linnworks Walmart CDiscount Marketplace integrations Product data and template workflows

International commerce: UK retail operations China & Asia supply chains Cross-border fulfilment Multi-marketplace commerce

Languages: English — Full professional working proficiency Mandarin Chinese — Fluent Cantonese — Native