Senior Backend Architect - Billing & Revenue Systems

Bask Health; New York (NY); On-site; USD 140,000 - 190,000; Full time

Job summary

Bask Health is seeking a Senior Backend Engineer to design, build, and optimize the billing and revenue systems that power its telehealth platform. You will own backend services for subscriptions, payments, and revenue reporting using TypeScript, Node.js, AWS, SST, and SQL databases.

Collaborate with product, finance, and operations to ensure accurate data, reliable transaction processing, and robust error handling.

Qualifications

• 5+ years of professional software engineering experience, including substantial hands-on backend development.
• Strong proficiency in TypeScript, JavaScript, and Node.js.
• Experience designing, building, and maintaining production backend services and APIs.
• Professional experience integrating third-party APIs, processing webhooks, or building event-driven backend systems.
• Experience working with AWS services and serverless architectures.
• Familiarity with AWS Lambda, SQS, EventBridge, or comparable asynchronous processing infrastructure.
• Strong experience with SQL databases, relational data modeling, and database schema design.
• Experience with modern ORM or database access tools such as Prisma or Drizzle.
• Strong understanding of transactional data integrity, consistency, and reliable backend processing.
• Experience implementing idempotency, retries, error handling, and recovery mechanisms for critical workflows.
• Ability to design backend systems that support complex business rules and state transitions.
• Strong understanding of API security, authentication, authorization, and secure handling of sensitive information.
• Experience writing automated tests, debugging production systems, and maintaining high software quality.
• Ability to independently own complex engineering projects from architecture through deployment.
• Experience making architectural decisions and evaluating technical tradeoffs.
• Familiarity with Git, code reviews, CI/CD, and modern software development practices.
• Ability to use AI‑assisted development tools effectively while independently validating generated code.
• Strong analytical thinking, attention to detail, and problem‑solving skills.
• Excellent written and verbal communication skills.
• Ability to collaborate with product managers, engineers, finance, and operations teams.
• Comfortable working in a fast‑moving environment with significant ownership and responsibility.

Responsibilities

• Design, develop, and maintain backend services supporting billing, payments, subscriptions, and revenue-related workflows.
• Build and improve integrations with payment processors and external billing services.
• Develop APIs and application logic for subscription creation, renewals, cancellations, plan changes, and payment status updates.
• Help implement pricing, discount, trial, and billing configuration logic across merchant and patient workflows.
• Design reliable processing for payment events, webhooks, and asynchronous billing updates.
• Build services using TypeScript, Node.js, AWS, SST, and SQL databases.
• Use AWS Lambda, SQS, EventBridge, and related services to support event-driven billing workflows.
• Design database schemas and data models for transactions, subscriptions, invoices, billing events, and financial records.
• Develop mechanisms to prevent duplicate charges, inconsistent billing states, and lost payment events.
• Implement retry logic, idempotency, validation, and error handling for payment-related operations.
• Help build reconciliation processes that identify discrepancies between internal billing records and external payment providers.
• Improve the reliability, performance, and maintainability of existing billing services.
• Collaborate with finance and operations teams to understand billing issues, reporting needs, and operational requirements.
• Work with product managers and engineers to translate business requirements into technical designs.
• Develop internal tools and workflows that make billing issues easier to investigate and resolve.
• Build appropriate access controls, audit trails, and safeguards around sensitive billing information.
• Create automated tests covering billing calculations, subscription transitions, payment failures, and other edge cases.
• Investigate production incidents, identify root causes, and implement durable fixes.
• Improve monitoring, logging, alerting, and visibility into billing system performance.
• Review code, provide technical guidance, and contribute to engineering standards.
• Take ownership of complex billing initiatives from design and implementation through deployment and production support.
• Use Cursor, Claude Code, and other AI‑assisted development tools to accelerate development while independently validating correctness, security, and maintainability.
• Help establish reusable billing architecture that supports additional products, merchants, and business models.

Skills

Backend development

TypeScript

Node.js

API design

SQL databases

Event-driven systems

Testing & QA

Tools

AWS

SST

tRPC

Prisma

Drizzle

Cursor

Claude Code

Job description

Bask Health is seeking a Senior Backend Engineer to design, build, and optimize the billing and revenue systems that power its telehealth platform. You will own backend services for subscriptions, payments, and revenue reporting using TypeScript, Node.js, AWS, SST, and SQL databases.

Collaborate with product, finance, and operations to ensure accurate data, reliable transaction processing, and robust error handling.