• Lead and contribute to features across the billing stack: subscription management, payment processing, entitlements, invoicing, and internal tooling • Write, review, and maintain Go/Golang backends and TypeScript/React frontends — including unit, integration, and e2e tests • Architect and specify systems with enough precision that AI-assisted implementation produces correct, reviewable output • Work within a cross-functional team alongside product, design, and data engineering • Own features through their full lifecycle: design, implementation, deployment, and production operation • Handle ad-hoc internal billing support requests across the company

• Own and evolve the infrastructure supporting Billing Platform services: compute, storage, networking, CI/CD, and observability • Design and maintain IaC (Terraform) for billing system infrastructure on AWS; set module patterns and standards for the team • Build and own observability systems — metrics, logging, alerting — with a focus on billing accuracy and payment reliability • Define deployment patterns and runbooks that work well in an AI-agent-assisted development workflow: clear rollback procedures, safe promotion gates, automated validation • Partner with software engineers on service design — bringing infrastructure constraints and operational requirements into the conversation before code is written • Identify systemic risks and drive improvements that span team or organizational boundaries • Lead incident response for billing system issues; own the on-call rotation and postmortem process • Mentor engineers across the team; your technical judgment should raise the floor for everyone

• Build and operate large-scale systems with real consequences. • Make hard architectural tradeoffs and explain them clearly. • Contribute to shaping tickets and influencing direction. • Collaborate across the stack and seek guidance when required.

• Investigate escalations across frontend (JavaScript), APIs, and data flows • Reproduce issues and identify root causes • Work across the stack to understand system behavior • Write and ship small-to-medium fixes (PRs) • Improve reliability and reduce repeat issues • Contribute incremental product improvements • Act as the technical escalation point for support representatives • Provide clear guidance and unblock issues quickly • Help improve debugging workflows and internal playbooks • Translate structured customer feedback into actionable technical issues • Provide T-shirt sizing (S / M / L) from an engineering perspective • Identify small, high-impact fixes that can be shipped quickly • Help close the loop on resolved issues • Identify recurring issues and eliminate them • Improve logging, observability, and debugging processes • Build lightweight tooling or scripts to improve efficiency