Senior Backend Engineer (Node.js & C#)

About PayoneerFounded in 2005, Payoneer is the global financial platform that removes friction from doing business across borders, with a mission to connect the world's underserved businesses to a rising global economy. We're a community with over 2,500 colleagues all over the world, working to serve customers, and partners in over 190 countries and territories.By taking the complexity out of the financial workflows–including everything from global payments and compliance to multi-currency and workforce management, to providing working capital and business intelligence–we give businesses the tools they need to work efficiently worldwide and grow with confidence.Role SummaryAs a Senior Backend Engineer in the Credit Cards team, you will play a critical role in our Cloud transformation, re-architecting, building, and shipping our next-generation solutions, evolving the systems that power our card offering end-to-end, from card ordering and issuing to transaction processing and lifecycle management.Location: Petach TikvaHybridFull-timeWhat you'll doYou will be a core member of the Credit Cards engineering team, a high-impact unit responsible for the full card lifecycle, from ordering and issuing to limiting, managing, and monitoring card transactions. The team integrates with third-party payment processors, 3D Secure systems, and MasterCard, ensuring seamless, secure, and high-performance card operations for our customers.You will lead technical initiatives across card systems, designing, building, and validating robust backend solutions that scale with business needs.You will work closely with architects, security, product, and operations teams to modernize the existing card systems into a new event-driven architecture, introduce cloud-native patterns. Build it from scratch while ensuring that card business services remain reliable, secure, and performant.Who you are:You are a seasoned Senior Backend Engineer with deep expertise in backend systems and cloud architectures. You thrive in complex, fast-moving environments and excel at turning ambiguous requirements into concrete, reliable solutions.You bring strong technical ownership and accountability, balancing long-term architectural thinking with pragmatic delivery. You embrace change, learn quickly, and continuously adapt to new technologies, business needs, and integration challenges with external partners.You are proactive, curious, and confident in making informed decisions. You influence others through technical excellence and clear communication, collaborating closely with product, architects, security, and operations teams to ensure alignment, adoption, and lasting impact.Skills you are bringing with you6+ years of experience with backend development, preferably C# and Node.js6+ years of experience with advanced SQL (MSSQL/MySQL/PostgreSQL, etc.)4+ years of experience with NoSQL database, preferably MongoDBExperience with building SaaS platforms for cloud-based products, preferably AWSExperience with Containers and Kubernetes (K8s), preferably EKSExperience with Event-Driven ArchitectureExperience with Message Brokers such as RabbitMQ/SQS/Kafka, preferably KafkaExperience with Microservices developmentExperience with AI tools for leveraging team velocity & qualityB.S. in computer science or equivalentWhat Could Set You ApartPractical experience with Agile development methodologies.Familiarity with cloud platforms (AWS, Azure, or Google Cloud).Hands-on knowledge of non-relational databases like MongoDB.Experience with message queues or streaming platforms (e.g., RabbitMQ, SQS, Kafka).Experience in mentoring new hires and interns, fostering a culture of collaboration and best practices.#LI-LF1The Payoneer Ways of WorkingAct as our customer's partner on the insideLearning what they need and creating what will help them go further.Do it. Own it.Being fearlessly accountable in everything we do.Continuously improveAlways striving for a higher standard than our last.Build each other upHelping each other grow, as professionals and people.If this sounds like a business, a community, and a mission you want to be part of, apply today.We are committed to providing a diverse and inclusive workplace. Payoneer is an equal opportunity employer, and all qualified applicants will receive consideration for employment no matter your race, color, ancestry, religion, sex, sexual orientation, gender identity, national origin, age, disability status, protected veteran status, or any other characteristic protected by law. If you require reasonable accommodation at any stage of the hiring process, please speak to the recruiter managing the role for any adjustments. Decisions about requests for reasonable accommodation are made on a case-by-case basis.