Qualifications

Good English communication skills.
5+ years of professional backend engineering experience.
Experience applying AI or automation to monitoring, fraud detection, or operational workflows.
Strong experience building financial, payment, or subscription-based systems in production.
Hands-on experience with Stripe, including: Stripe Connect, Subscriptions, Billing, Webhooks, and Invoices
Solid understanding of payment lifecycles, reconciliation, and edge cases.
Familiar with fraud and risk management concepts, including: Chargebacks and dispute handling, Abnormal transaction detection, Payment verification and protection flows
Proficient in Node.js (ES6+), RESTful APIs, and microservice architectures.
Strong experience with PostgreSQL, Redis, and transactional data modeling.
Hands-on experience with monitoring, logging, and alerting tools such as Datadog.
Proven ability to debug and operate production systems under real traffic.
Strong sense of ownership, accountability, and reliability, especially when working with money.
Comfortable working cross-functionally in an Agile/Scrum environment.

[Nice to have]

Experience with Stripe Radar or other fraud detection tools.
Familiarity with PCI-DSS principles and secure payment architecture.
Experience with multi-currency, cross-border payments, or tax/VAT handling.
Experience with event-driven architectures (Kafka, SQS).
Experience building internal financial tooling (reconciliation, reporting, payout dashboards).

Responsibilities

Design, build, and maintain core payment, subscription, and billing services with high reliability and data consistency.
Lead backend development for Stripe integrations, including:
Stripe Subscriptions & Billing
Stripe Connect (account onboarding, payouts, transfers, balance reconciliation)
Payment Intents, Checkout, Invoices, and Webhooks
Build secure and scalable payout flows for coaches and partners across regions.
Design systems with strong idempotency, retry, and failure-handling strategies for financial transactions.
Own services from development through production launch, including rollout, monitoring, and post-launch support.
Monitor live systems using observability tools (e.g., Datadog) to ensure the health of payment flows.
Handle production incidents, perform root-cause analysis, and drive long-term reliability improvements.
Collaborate closely with Product, Finance, and other Engineering teams to deliver monetization features.
Mentor other backend engineers and contribute to architecture and technical standards.

Back End Developer (Nodejs) - Payment & Financial Systems