Hybrid Principal Engineer – Post-Purchase

at MOO

• Job title: Principal Engineer – Post-Purchase
• Job type: Full Time
• Experience level: Lead
• Salary: Not specified
• Degree requirement: No Education Requirement
• Location requirements: Hybrid, London, United States

About the role

• Principal Engineer leading architectural and technical strategy for MOO’s Post‑purchase domain. Collaborating with teams to improve order orchestration, fulfilment, and shipping processes.

Responsibilities

• Bring deep technical leadership to the Post‑purchase area, owning the end‑to‑end architectural direction and enabling multiple teams to move quickly and efficiently.
• Balance essential scaling of today’s systems with an iterative migration away from legacy components.
• Define contracts, events and guardrails that make our ecosystem observable, resilient and cost‑efficient, and translate operational requirements from Ops and CS into pragmatic platform improvements.
• Work with our engineering team based in the UK, while supporting our stakeholders who are based in our manufacturing facility and office in East Providence, Rhode Island.
• Lead cross‑team initiatives that increase throughput and reduce cost‑to‑serve. Improve observability and operability across the flow from “buy” to “delivered,” reducing WISMO and manual interventions.
• Assist in enabling a 360° order view and actioning capabilities for CS and Ops by standardising data pipelines and surfacing the right aggregates in Backstage and related tools.
• Mentor Staff and Senior Engineers across Nexus and Forge, facilitate design reviews and workshops, resolve technical conflicts, and align stakeholders on pragmatic, high‑impact solutions.

Requirements

• Proven track record shaping architecture and delivery for complex post-purchase/manufacturing or adjacent domains at scale: order orchestration, manufacturing/fulfilment, shipping, returns, and CS tooling.
• Expert at designing service and event contracts, data flows and reliability patterns that enable multiple teams to ship safely and quickly.
• Skilled facilitator who can align Ops, CS, Product and Engineering, resolve technical disagreement, and translate architecture into measurable business impact. Comfortable working with remote teams across different time zones.
• Comfortable balancing migration with tactical scaling work in live systems.
• Experience with manufacturing execution systems, batching and scheduling algorithms, and warehouse/dispatch integrations (nice to have).
• Prior work migrating e-commerce platforms and improving CS agent experience through unified data and actioning (nice to have).

Benefits

• 25 days holiday rising by one day for each year here (for 5 years)
• matched pension scheme
• paid parental leave
• private healthcare
• life insurance
• season ticket loan
• cycle to work scheme
• flexible work schedules with hybrid and remote working for certain roles
• Work From Anywhere program