Koinz is Saudi Arabia’s leading social food ordering experience — the app that transforms everyday coffee and dining into a fun, rewarding, and shareable lifestyle.With 2.7M+ signups, Koinz is more than a loyalty app — it’s where Gen Z and young consumers discover brands, earn rewards, share experiences, and make food social.Your mission is to build high-scale systems powering ordering, loyalty, and social experiences — across thousands of merchants and millions of users.As a Senior Product Engineer (Backend) who combines strong engineering skills with deep product thinking. Someone who cares about why we’re building, not just what we’re building. You’ll own features end-to-end from idea to production to post-release impact.At Koinz, we don’t just build backend systems, we build products that users love.What You’ll DoOwn features end-to-end: from problem definition → design → development → release → monitoring → iterationBuild and evolve scalable backend services and APIs powering core Koinz experiencesTranslate product ideas into simple, scalable, and high-impact solutionsDesign systems that balance performance, reliability, and speed of iterationContinuously improve system performance (latency, throughput, cost efficiency)Use data (events, dashboards, session replays) to validate decisions and guide iterationsEnsure production systems are reliable, observable, and easy to debugWork closely with Product, Mobile, and Design to shape user experiences — not just implement themContribute to architectural decisions (microservices, integrations, system evolution)Take ownership of post-release outcomes: iterate, improve, or sunset features based on impactWho You Are5+ years of experience building backend systems in production environmentsStrong experience in at least one backend language (PHP, Node.js, Java, Go, or similar)Solid understanding of distributed systems and microservices architectureStrong product sense — you think in terms of user problems, not just technical tasksExperience designing APIs (REST/gRPC) and working with frontend/mobile teamsHands-on experience with relational and/or NoSQL databasesExperience with cloud platforms (AWS, GCP, or Azure)Familiarity with Docker/Kubernetes or similar toolingStrong debugging and problem-solving skills in production environmentsAbility to make trade-offs between speed, scalability, and qualityNice to HaveExperience in high-throughput systems (ordering, payments, loyalty, real-time systems)Familiarity with event-driven architectures (Kafka, RabbitMQ, etc.)Experience with experimentation / A/B testingExposure to recommendation systems or personalizationExperience working closely with product metrics (conversion, retention, engagement)Powered by JazzHRLsz9aAyxgO