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Senior Backend Engineer (Mobile Monetization) | Feeld
Poland - Remote. Posted 12 days ago
The role
This person will take ownership of backend systems powering Feeld's subscription and in-app purchase experiences on iOS and Android. They will design, develop, and maintain scalable backend services for billing, payment processing, and entitlements.
What you will do
- Take ownership of backend systems supporting Feeld's monetisation.
- Design, develop, and maintain scalable backend services for subscriptions, billing, and payment processing.
- Ensure accuracy and reliability of monetisation flows.
- Support development and optimisation of subscription and payment flows.
- Implement and maintain feature flags, testing, and analytics instrumentation.
- Collaborate with Product, Engineering, and Data teams to improve analytics and reporting.
Required qualifications
- 5+ years of commercial backend development experience.
- Proven experience with mobile monetisation and subscription platforms, such as Adapty, RevenueCat, or comparable solutions.
- Hands-on experience implementing mobile in-app purchases and subscription flows for iOS and/or Android applications.
- Experience integrating mobile payment platforms with custom backend systems.
- Strong understanding of mobile subscription and payment lifecycles.
- Experience ensuring the accuracy, reliability, and consistency of revenue-critical backend systems.
- Strong backend development experience with Node.js or TypeScript or JavaScript.
- Good understanding of event-driven architectures, asynchronous processing, and distributed systems.
- Experience writing reliable unit and integration tests.
- Strong technical ownership, independent problem-solving, and architectural decision-making skills.
- Full professional proficiency in English.
Nice to have
- Experience with AWS cloud infrastructure, SQL and NoSQL databases.
- Experience working directly with Apple App Store and Google Play billing ecosystems.
- Experience running monetisation experiments, including A/B testing, subscription pricing changes, and conversion optimisation.
- Experience managing regional pricing, multiple currencies, and country-specific monetisation strategies.
- Experience analysing the performance of monetisation experiments.
- Previous experience acting as a Tech Lead or Lead Backend Engineer, mentoring engineers, and driving technical decisions.
Before you apply
- GT interview with Recruiter
- GT technical interview
- Client technical interview
- Final interview
- Reference Check
About the company
GT connects the world's best talent with product careers in the UK, USA, Canada, Germany, and the Netherlands. Feeld is a dating app that aims to create a safer and more inclusive space for people to experience relationships.