xEngineer (Backend oriented), Premium Billing Platform

Location: Tel Aviv; fully in person, 5 days per week from the office.

Company

Wix builds web creation and business products used by more than 299 million users worldwide.

What you will do

• Design and build scalable backend services for subscriptions, billing, checkout, invoicing, and payment execution.
• Develop API-first domain models for subscriptions, orders, invoices, payment intents, and payment methods.
• Create resilient distributed flows using asynchronous processing, idempotency, retries, and failure recovery.
• Design payment-provider-agnostic systems and improve production reliability through metrics, logs, traces, and data-driven insights.
• Collaborate with Product, Payments, Data, Finance, and other teams on end-to-end solutions.
• Modernize billing flows and migrate large-scale production traffic and subscriptions to the new platform.

Requirements

• 4+ years of experience building backend systems in production.
• Strong software engineering fundamentals and hands-on experience designing complex backend systems.
• Experience with distributed systems and microservices architectures.
• In-depth understanding of API design, domain modeling, Object-Oriented Programming, and SOLID principles.
• Experience designing systems for reliability, scalability, consistency, and failure recovery.
• Expertise in asynchronous and event-driven architectures.
• Commitment to automated testing, clean code, and maintainable software design.
• Ability to troubleshoot complex production issues across multiple services and data sources.
• Strong ownership, communication, and collaboration skills, including responsibility for critical systems from design through production.
• Practical experience using modern AI-assisted engineering tools in development workflows.

Nice to have

• Experience with billing, subscriptions, fintech, payments, or transaction-heavy systems.
• Familiarity with Stripe, Adyen, Braintree, PayPal, or similar payment providers.
• Experience with high-volume migrations or modernization of large legacy systems.
• Knowledge of event-driven systems, workflow orchestration, or distributed transaction patterns.
• Hands-on experience with large-scale data and observability platforms.

Culture & Benefits

• Fully in-person work from the office five days per week.
• Flexibility for special requests handled at the team level.
• Significant ownership and architectural impact on a critical billing platform.
• Collaboration with experienced engineers using modern engineering practices, automation, data, and AI.
• Work on systems supporting millions of customers and directly affecting products, revenue, and new business models.