Senior Backend Developer

🕒 July 27

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Yuno

WebsiteLinkedInAll Job Openings

11 - 50 employees

💳 Fintech

🏢 Enterprise

☁️ SaaS

Fintech • Enterprise • SaaS

Yuno is a company that provides payment orchestration and infrastructure solutions on a global scale. Their technology empowers businesses to integrate over 300 payment methods, boosting acceptance rates and enabling seamless scaling of payment operations across multiple regions. Yuno focuses on providing a simplified payment process with features like smart routing, unified payment insights, auto reconciliation, and custom checkout options. They emphasize security and fraud management, ensuring safe transactions. Yuno facilitates global payouts and subscription management, making them an ideal partner for businesses looking to optimize their payment systems and increase revenue.

📋 Description

• Design, build, and evolve high-performance backend services and APIs in Kotlin and Spring Boot, engineered for reliability, low latency, and massive scale. • Own the full lifecycle of features, from technical design and implementation to monitoring and ensuring correct operation in production. • Develop and maintain checkout payment flows, including authorization, capture, refunds, reversals, and partial payments across multiple payment providers and regions. • Architect and implement resilient microservices using event-driven patterns (Kafka, queues) to handle asynchronous payment processing with zero data loss. • Strengthen and expand the integration framework that connects Yuno to PSPs, acquirers, and payment gateways across countries and complex payment rails. • Apply OWASP principles and engineering best practices to ensure excellence in security, privacy, and PCI-DSS compliance. • Collaborate with Product, Compliance, and Business teams to translate real payment problems into elegant, scalable technical solutions. • Participate actively in code reviews, architecture decisions, and technical discussions that shape the direction of the platform. • Contribute to a culture of technical excellence, writing clean, well-tested, production-ready code with a strong focus on quality.

🎯 Requirements

• 4+ years of professional backend development experience. • Kotlin Strong proficiency in Spring Boot Deep expertise with payment processing concepts • Solid understanding of microservices architectures Experience building and operating • Proficiency with relational databases (PostgreSQL or similar) and data modeling for financial systems. • Experience with containerization and cloud infrastructure (Docker, Kubernetes, AWS or GCP). • Strong command of unit, integration, and contract testing practices. • Fluent written and verbal communication in English. • Experience in a fintech, neobank, or payment orchestration environment. • Familiarity with PCI-DSS, PSD2, or 3DS authentication frameworks. • Hands-on experience with Kafka or other event streaming platforms. • Knowledge of network tokenization, smart routing, or payment optimization strategies. • Experience with observability tooling (Datadog, OpenTelemetry, distributed tracing). • Prior work at a high-growth startup operating across multiple markets.