Senior Backend Developer (C# or Java)

About Payoneer Founded 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. Location: Herzliya-Glilot Hybrid Full-time What you’ll do Take a leadership role in achieving team goals, contributing to the overall design, architecture, development, quality, and production deployment of the team's systems. Design and implement robust, scalable, and maintainable backend solutions for complex scenarios, ensuring high-quality results that may be consumed by other teams. Collaborate effectively within your team and with cross-functional partners, such as Product, Design/UX, DevOps, and other R&D teams, representing your team as needed. Maintain and improve the team's engineering practices, suggesting and implementing technology, patterns, or process enhancements. Proactively identify areas of improvement in team systems, processes, and scalability. Lead by example in code quality, contributing significantly to code reviews and acting as a focal point for engineering excellence questions. Help monitor production systems, investigate potential issues, and lead efforts to resolve critical production challenges while maintaining a customer-centric approach. Who you are: 6+ years in backend software engineering roles, with demonstrated ability to navigate technical trade-offs and ambiguity effectively. Proficiency in C#, Java, or similar object-oriented languages. Expertise in SQL and database management. Experience leveraging AI tools across the full development lifecycle - design, coding, testing, code review, documentation, and production investigation - not just as a coding assistant. Strong knowledge of data structures and algorithms. Experience with microservices architecture. Experience in designing new functionality for existing complex components while maintaining scalability and performance. Ability to collaborate effectively and communicate technical concepts to diverse stakeholders. BA/BSc in Computer Science, Software Engineering, or equivalent experience (e.g., military technology units like 8200). What Could Set You Apart Practical 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-LF1 The Payoneer Ways of Working Act as our customer’s partner on the inside Learning what they need and creating what will help them go further. Do it. Own it. Being fearlessly accountable in everything we do. Continuously improve Always striving for a higher standard than our last. Build each other up Helping 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.