Senior Backend Engineer, Revenue Engine

About the Team:

The Revenue Engine Squad is responsible for the core platform and systems that power monetary transactions within CookUnity’s eCommerce marketplace, including pricing, payments, refunds, promotions, and order finalization. Our mission is to maximize revenue efficiency, streamline payment flows, and build a flexible financial system that adapts to evolving business needs while ensuring every transaction is processed securely and accurately.

As CookUnity scales, we are investing in centralizing payment processing to improve transaction reliability, minimize failures, and create a frictionless payment experience. This high-impact team plays a critical role in business growth by building scalable, high-performing financial infrastructure that supports a seamless marketplace experience.

The role:

We are looking for a Senior Backend Engineer to join the Revenue Engine Squad in the Marketplace Zone. This role is ideal for an engineer with deep expertise in payment systems, payment processing, and service-oriented architecture. You will play a crucial role in designing and developing scalable, reliable backend systems that process millions of dollars in transactions.

You will collaborate closely with cross-functional teams, including Product, Marketing, Finance, and Legal, to build robust services that empower our marketplace. Your contributions will directly impact our ability to scale and improve our customer experience.

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

---

Minimum 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

Preferred requirements:

• Experience working in high-transaction volume eCommerce or fintech environments
• Knowledge of PCI compliance, fraud detection, and payment security best practices
• Experience with Saga pattern and orchestration frameworks such as Temporal to manage distributed transactions and workflows
• Experience with event-driven architectures and message queues (e.g., Kafka, RabbitMQ)
• Experience in subscription billing models and recurring payments
• Prior experience working in a fast-paced startup environment

---

Benefits

💸 Get paid in USD, Crypto, Euro, ARS. Whatever your choice! We use Deel to make things easier for you!

🗺 Work remotely: design the life that you want

⛱ Enjoy 15 days of vacation each year from the start date

🎄 16 fully paid Argentinean holidays

🗓️ 5- year Sabbatical: After 5 years with CookUnity, you get a 4-week paid sabbatical

🐣 Family leave of 12 weeks for primary caregiver and 6 weeks for secondary caregiver, fully paid

🕯 Compassionate Leave: 3-5 days each time the need arises

🧘🏽‍♀️ Customize the benefits that suit your needs! Access a range of perks tailored to you, including learning opportunities, wellness memberships, delivery apps, and more through our comprehensive benefit platform

🧑‍🏫 Personalized English coach

---

If you’re interested in this role, please submit your application and if we think you might be a fit, we'll get in touch with you. Thank you for your time!

CookUnity is an Equal Opportunity Employer. We are dedicated to creating a community of inclusion and an environment free from discrimination or harassment. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, age, sexual orientation, gender identity, national origin, citizenship status, protected veteran status, genetic information, or physical or mental disability.

Create a Job Alert

Interested in building your career at CookUnity? Get future opportunities sent straight to your email.

Create alert

Apply for this job

*

indicates a required field

Autofill with Greenhouse

First Name*

Last Name*

Preferred First Name

Email*

Phone*

Resume/CV*

AttachAttach

Dropbox

Google Drive

Enter manuallyEnter manually

Accepted file types: pdf, doc, docx, txt, rtf

Cover Letter

AttachAttach

Dropbox

Google Drive

Enter manuallyEnter manually

Accepted file types: pdf, doc, docx, txt, rtf

---

Please share your LinkedIn Profile*

Please let us know if you are located in any of these countries: Chile, Perú, México, Colombia, Uruguay, Brazil or Argentina*

Can you assist with the on-call rotation to ensure the business operates 24/7?

Select...

Are you able to communicate effectively in English at a B2 level or higher in a professional work environment, including meetings, emails, and collaboration with international teams?

Select...

Submit application