Senior Backend Engineer – Mobile Monetization

Job not on LinkedIn

🔥 14 minutes ago

🌐 Poland, Portugal, +1 more countries – Remote

🇵🇱 Poland – Remote 🇵🇹 Portugal – Remote 🇪🇸 Spain – Remote

⏰ Full Time

🟠 Senior

🔙 Backend Engineer

👻 Ghost score 10%

What it means: the chance that no one is really hiring for this job.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.Why this score:

• Just posted.
• Jobs at this company usually fill in 35 days.
• No salary listed.

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GT

WebsiteLinkedInAll Job Openings

51 - 200 employees

Founded 2019

💼 Consulting

🏥 Healthcare

📦 Logistics

Consulting • Healthcare • Logistics

GT is a product development studio that specializes in providing offshore product teams and data science services to high-growth companies worldwide. Founded by professionals with backgrounds from major tech companies like Apple, Nest, and Google, GT operates from locations including Canada, Poland, the UK, and Ukraine. The company is dedicated to supporting and empowering its clients through innovative solutions, talent acquisition, and end-to-end product development.

📋 Description

• Take ownership of the backend systems supporting Feeld’s monetisation, ensuring reliability, performance, and contribution to business goals • Design, develop, and maintain scalable backend services and integrations for subscriptions, billing, payment processing, entitlements, pricing, and promotional features • Ensure the accuracy, stability, and reliability of monetisation flows • Proactively identify and resolve production issues that could impact revenue or user experience • Support development and optimisation of subscription and payment flows, including performance, scalability, and error-handling improvements • Implement and maintain feature flags, testing, and analytics instrumentation for experimentation and continuous improvement • Collaborate with Product, Engineering, and Data teams on analytics and reporting capabilities • Provide insights into revenue performance, user behaviour, and system health • Contribute to architectural decisions and potentially act as a technical lead • Participate in recruiter, technical, client technical, final interview, reference check, and offer stages

🎯 Requirements

• 5+ years of commercial backend development experience, ideally building high-load, business-critical systems • 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, including payment data synchronisation, receipt handling, subscription status tracking, and entitlement management • Strong understanding of mobile subscription and payment lifecycles, including renewals, cancellations, refunds, failed payments, and subscription state changes • Experience ensuring the accuracy, reliability, and consistency of revenue-critical backend systems, including troubleshooting production issues • Strong backend development experience with Node.js, TypeScript, or JavaScript, ideally using NestJS and building GraphQL or REST APIs • 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, with potential to take on technical leadership responsibilities • Strong communication skills and full professional proficiency in English • Nice to have: experience with AWS cloud infrastructure, SQL and NoSQL databases • Nice to have: experience working directly with Apple App Store and Google Play billing ecosystems • Nice to have: experience running monetisation experiments, including A/B testing, subscription pricing changes, and conversion optimisation • Nice to have: experience managing regional pricing, multiple currencies, and country-specific monetisation strategies • Nice to have: experience analysing monetisation experiment performance, including revenue, subscription conversion, and retention metrics • Nice to have: previous experience acting as a Tech Lead or Lead Backend Engineer, mentoring engineers, and driving technical decisions • Ability to work with an overlap from 2 to 6 pm GMT

🏖️ Benefits

• Full-time, long-term opportunity • B2B basis contract with no VAT requirement • Remote work from Poland, Portugal, or Spain

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