The Payment & Billing Systems Engineer manages the payment infrastructure, ensuring reliability, compliance, and accurate billing for subscription services, while developing systems for transaction processing and fraud prevention.
This is a remote position.
Our client is looking for a Payment & Billing Systems Engineer to take full ownership of their payment infrastructure and ensure reliability across their subscription-based platform. They operate within the tech and digital product space and have recently scaled their platform capabilities, supporting a growing global user base through subscription-driven services.
This role sits at the core of their revenue engine. Payment accuracy, subscription logic, and billing reliability directly impact both user experience and business performance, making this one of the most critical positions on the team.
- Take full ownership of the payment ecosystem, including Authorize.net as the primary processor and cryptocurrency payment integrations
- Architect and manage the full subscription lifecycle, including activations, plan changes, cancellations, suspensions, and recovery flows
- Develop robust webhook handling systems with strong guarantees around idempotency, retries, and event sequencing
- Build and maintain billing reconciliation processes across multiple intervals, ensuring financial accuracy and traceability
- Design workflows for refunds, disputes, and chargeback handling
- Implement automated testing strategies, including integration and end-to-end tests for payment and subscription flows
- Introduce fraud prevention mechanisms and enforce rate limiting on payment-related endpoints
- Ensure compliance with payment security standards and best practices, including PCI-related requirements
Requirements
- Proven, hands-on experience working directly with Authorize.net in production environments (Accept Suite, AIM, ARB, CIM, or Transaction APIs)
- Experience building a complete payment system from scratch that processes real user transactions
- Minimum of 3 years developing payment or billing systems in live environments
- Deep understanding of subscription lifecycle management and complex edge cases
- Strong experience with financial reconciliation processes and audit tracking
- Solid backend engineering skills using Node.js and TypeScript
- Experience with asynchronous workflows or job orchestration tools
- Familiarity with distributed systems and handling failure scenarios in payment flows
- Experience working with PostgreSQL and Redis
- Exposure to Temporal or similar workflow orchestration tools
- Understanding of crypto payment integrations (Solana, Ethereum, Polygon) is a plus
- Knowledge of NestJS and PCI-DSS standards is considered an advantage
Benefits
Similar Jobs
Artificial Intelligence • Fintech • Insurance • Marketing Tech • Software • Analytics
Provides expert underwriting guidance and referral approval for large construction casualty programs, including workers’ compensation, general liability, auto, excess, OCIP, and CCIP. Evaluates coverage, exposure, pricing, portfolio performance, and financial decisions; advises underwriting leaders and field teams; improves technical frameworks and underwriter development; and maintains relationships with brokers, customers, and reinsurance partners.
Artificial Intelligence • Cloud • Computer Vision • Hardware • Internet of Things • Software
Design and build scalable frontend and backend features for route planning, routing, navigation, and route execution products. Partner with product, design, and engineering leadership to improve planner efficiency, leverage AI appropriately, and promote technical excellence. Mentor junior engineers, contribute to team growth, engage with customers, and help scale products across industries and customer verticals.
Top Skills:
AIAPIsIot
Cloud • Information Technology • Internet of Things • Machine Learning • Software • Cybersecurity • Infrastructure as a Service (IaaS)
Supports People Business Partners with performance management, HRMS data maintenance, audits, employee lifecycle processing, compliance tracking, reporting, relocations, policy investigations, employee relations trends, and HR projects. The role requires strong analytical, communication, organizational, and stakeholder-management skills, along with proficiency in Microsoft Excel and HR systems.
Top Skills:
Human Resource Management Systems (Hrms)ExcelMS Office
What you need to know about the Boston Tech Scene
Boston is a powerhouse for technology innovation thanks to world-class research universities like MIT and Harvard and a robust pipeline of venture capital investment. Host to the first telephone call and one of the first general-purpose computers ever put into use, Boston is now a hub for biotechnology, robotics and artificial intelligence — though it’s also home to several B2B software giants. So it’s no surprise that the city consistently ranks among the greatest startup ecosystems in the world.
Key Facts About Boston Tech
- Number of Tech Workers: 269,000; 9.4% of overall workforce (2024 CompTIA survey)
- Major Tech Employers: Thermo Fisher Scientific, Toast, Klaviyo, HubSpot, DraftKings
- Key Industries: Artificial intelligence, biotechnology, robotics, software, aerospace
- Funding Landscape: $15.7 billion in venture capital funding in 2024 (Pitchbook)
- Notable Investors: Summit Partners, Volition Capital, Bain Capital Ventures, MassVentures, Highland Capital Partners
- Research Centers and Universities: MIT, Harvard University, Boston College, Tufts University, Boston University, Northeastern University, Smithsonian Astrophysical Observatory, National Bureau of Economic Research, Broad Institute, Lowell Center for Space Science & Technology, National Emerging Infectious Diseases Laboratories
