Senior Backend Engineer, Revenue Engine (Kotlin/Java) at CookUnity

CookUnity is seeking a Senior Backend Engineer to join its Revenue Engine Squad within the Marketplace Zone. The Revenue Engine Squad is responsible for the core systems and user experiences that power monetary transactions, including pricing, payments, refunds, promotions, and order finalization. This is a remote position based in Latin America.

The Senior Backend Engineer will play a crucial role in designing and developing scalable and reliable backend systems that process millions of dollars in transactions. He will collaborate closely with cross-functional teams, including Product, Marketing, Finance, and Legal, to build robust services that empower CookUnity's marketplace.

Responsibilities:

• Design, develop, and maintain scalable backend services for payment processing, pricing, and refunds.
• Integrate payment gateways and 3rd party integrations.
• Optimize payment success rates by improving retry mechanisms, fraud detection, and error handling.
• Develop and implement features to support promotions, subscriptions, and order finalization workflows.
• Work on multi-currency support and international payment processing.
• Define and uphold engineering best practices in security, scalability, performance, and code quality.
• Improve the maturity of our technical stack through engineering best practices and process automation.
• Monitor and enhance system performance.
• Participate in code reviews, mentorship, and technical decision-making.
• Collaborate with cross-functional teams including finance, legal, and security to ensure compliance and fraud prevention.

Requirements:

• 5+ years of experience in backend development, with expertise in Kotlin, Java, and SQL databases (PostgreSQL or MySQL).
• Strong knowledge of payment processing systems and experience integrating with third-party payment providers like Stripe, PayPal.
• Experience designing and building scalable cloud-based architectures and distributed systems.
• Expertise in service-oriented architectures, API design, and microservices development.
• Strong knowledge of database design, implementation, and query optimization.
• Experience with system performance monitoring, logging, and observability.
• Ability to write clean, maintainable, and testable code.
• Advanced level of English with strong communication skills, both verbal and written.

CookUnity offers:

• Payment in USD
• Remote work
• 15 business days of vacation
• Healthcare Benefit
• 16 fully paid Argentinean holidays
• Compassionate Leave
• Family leave
• Personalized English coach
• Customizable benefits
• 5-year Sabbatical