Staff FinTech Engineer: AI-Driven Revenue Platform — Remote

Pax8, Inc.; United States; Remote; USD 180,000 - 230,000; Full time

Job summary

Pax8, Inc. is seeking a Staff Software Engineer in FinTech to own and operate a high-impact, AI-enabled financial platform for a global marketplace.

You will drive specifications, architecture, and production readiness across revenue lifecycle components such as pricing, billing, and settlement. This role emphasizes safety, mentorship, and end-to-end responsibility in a highly collaborative, remote-ready environment.

Qualifications

• Meaningful hands-on experience building and operating production systems across two or three of the following areas.
• Experience with subscription lifecycle management, usage-based consumption, pricing structures, and billing operations within your areas of expertise.
• Ability to implement financial controls and auditable workflows in partnership with Finance and Compliance.

Responsibilities

• Own, build, and operate a technically complex FinTech system that requires its own technical strategy.
• Apply domain expertise across revenue lifecycle areas, understanding how product information, pricing, orders, subscriptions, fulfillment, usage, and financial transactions affect one another.
• Build commerce capabilities for subscription and usage-based models, including metering, token consumption, billing, and settlement, in partnership with Product.
• Make consequential calls about what to build, scale, or retire on ambiguous problems. Drive them to clarity through iteration and collaboration, and own the outcome.
• Exercise systems thinking beyond your ownership boundary. Optimize the revenue lifecycle end to end, adjust plans when a local improvement creates downstream problems, and pursue the right fix through influence, contribution, or escalation.
• Own your domain: identify high-impact problems, scope solutions, and build them using AI agents and enterprise-approved tools across the development lifecycle.
• Use spec-driven development to make business rules, system behavior, edge cases, and acceptance criteria explicit enough to guide both engineers and agents.
• Design for financial correctness, data integrity, auditability, and resilient operation across interconnected systems.
• Instrument systems for adoption, usage, reliability, and financial accuracy from the start. Prove delivered value against a falsifiable, data-backed standard.

Skills

FinTech Systems

Systems Thinking

Mentorship

Security

Production Ownership

Tools

AI Tools (Claude)

Job description

Pax8, Inc. is seeking a Staff Software Engineer in FinTech to own and operate a high-impact, AI-enabled financial platform for a global marketplace.

You will drive specifications, architecture, and production readiness across revenue lifecycle components such as pricing, billing, and settlement. This role emphasizes safety, mentorship, and end-to-end responsibility in a highly collaborative, remote-ready environment.