Senior Software Developer, Billing

MaintainX is the world's leading AI-powered maintenance and asset management platform, serving 13,000+ customers including Duracell, Shell, Cintas, and Brenntag. We raised $150M in Series D funding led by Bessemer Venture Partners and Bain Capital Ventures, bringing our total funding to $254M. We were named to the Forbes 2025 Cloud 100 , the definitive ranking of the top 100 private cloud companies in the world. We're growing fast and hiring the engineering talent to match. About the Role: MaintainX is building a dedicated Billing team from the ground up to automate the full order-to-cash pipeline and replace years of organic growth with a reliable, auditable billing platform. You'll be one of the first developers on this team, owning the systems that power every revenue-generating interaction — from a sales rep closing a deal to an enterprise customer going live without a single manual step. You'll work closely with Finance, RevOps, and Product to define the data contracts and reliability standards the business depends on. This is a high-ownership role: the billing infrastructure you design underpins every dollar of ARR MaintainX generates. What You'll Do : Architect and build a new billing service from the ground up, establishing the foundation for a scalable, provider-agnostic platform designed to grow with the business Build the order-to-cash automation pipeline end-to-end: from deal close to contract to provisioning to invoicing to payment collection, eliminating manual steps for every new enterprise contract Architect a unified entitlement service that streamlines feature enablement directly based on subscription information Drive consolidation of a product catalog Set the reliability bar across all billing integrations: idempotency, dead-letter queues, structured audit logs, and circuit breakers for every critical billing state transition Participate in an on-call rotation for billing and payment-critical infrastructure Work across our stack (TypeScript, React, React Native, Node.js, and GraphQL) - Web & Mobile Work with the team to build, maintain and optimize product features that focus on how our users best collaborate with one another Actively own team features or systems and define their long-term health, while also improving the health of surrounding systems Mentor other developers and deeply review code Improve software development standards, tooling and processes & bring best practices in planning, developing, testing and deploying industry compliant code About You: Deep expertise in TypeScript and Node.js, with a record of building and maintaining production-grade backend services Experience designing event-driven or webhook-based systems — you understand idempotency, failure modes, and retry strategies intuitively Comfort working in complex, high-stakes codebases — you can extend safely, identify root causes rather than workarounds, and leave systems more maintainable than you found them Systems-level thinking: you can trace a billing event end-to-end across multiple systems and identify exactly what broke Nice to Have: Prior experience with billing, subscription management, or payment platforms Familiarity with ERP or contract lifecycle management systems Experience with multi-region SaaS architecture or data isolation requirements What’s In It for You: Competitive salary and meaningful equity opportunities. Healthcare, dental, and vision coverage. 401(k) / RRSP enrollment program. Take what you need PTO. A Work Culture where: You’ll work alongside folks across the globe that reflect the MaintainX values: Smart Humble Optimists. We believe in meritocracy, where ideas and effort are publicly celebrated. About Us: Our mission is to deliver one platform for maintenance, repair & operations teams to keep the physical world running. We believe the greatest asset in any organization is the people. That’s why we built an intuitive, mobile-first solution to help boost productivity and collaboration across teams and locations. MaintainX is committed to creating a diverse environment. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status.

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