CareerPlan

Senior Software Engineer, Backoffice Platform

UK HubRemoteFull-time2026-10-23 → 2026-11-11

Core

Own and evolve the back office platform managing customer accounts, entitlements, limits, and billing tooling for Finance, Customer Success, and Support teams.

Role type

Senior Software Engineer (Backoffice Platform)

Builds

Internal platform for entitlements, administration tooling, and billing

Domain

SaaS infrastructure / Realtime messaging platform

Required skills

Ruby on Rails, system architecture, observability, test strategy, AI-assisted development, stakeholder partnership

Preferred skills

usage-based billing systems, platform/internal tooling experience, financial/compliance audit accountability

Technologies

Ruby on Rails, LLMs, AI tools

Responsibilities

Run the back office platform including entitlements and billing systems; solve complex problems defined by users rather than tickets; partner with Finance, Customer Success, and Support to refine requirements; champion AI-assisted development while maintaining architectural quality; make systems explainable and observable; set and enforce testing standards for production readiness.