Senior Full Stack Developer

About this role

The world of payment processing is rapidly evolving, and businesses are looking for loyal and strategic partners, to help them grow. Meet Nuvei , Nuvei is the global fintech building the infrastructure for every payment, everywhere. Its modular, flexible, and scalable technology enables leading companies to accept next-generation payments, offer all payout options, and benefit from card issuing, banking, risk, and fraud management services. Connecting businesses to their customers in more than 200 markets, with local acquiring in 52 markets, 150 currencies, and over 720 alternative payment methods, Nuvei provides the technology and insights for customers and partners to succeed locally and globally through one integration. At Nuvei, we live our core values, and we thrive on solving complex problems. We’re dedicated to continually improving our product and providing relentless customer service. We are always looking for exceptional talent to join us on the journey! Your Mission We are looking for a Senior Full Stack Developer to join our fast-growing team . You will report to the Full Stack Team Leader and play a key role in contributing to our team’s ongoing success and growth. Responsibilities Design, develop, and maintain high-performance web applications using React and TypeScript, incorporating advanced AI features into the user experience. Building and optimizing robust backend APIs to support payment workflows, including multi-agent state management and LLM lifecycle governance. Collaborate cross-functionally with product managers, architects, DevOps, and UX/UI designers to translate business requirements into comprehensive, scalable solutions. Drive development efficiency by leveraging AI-assisted tools to improve code velocity, consistency, and overall system reliability. Qualifications 5+ years of hands-on experience with React.js and Node.js (Strong proficiency in TypeScript is required). Expertise in RESTful API design (Required), including security best practices, authentication mechanisms (e.g., OAuth, JWT), and performance tuning. Experience with GraphQL or oRPC is an advantage. Experience with GraphQL or oRPC is an advantage. Experience building AI agents using LangGraph (or similar stateful orchestration frameworks) and implementing telemetry with LangSmith, Langfuse, or Braintrust. Fast learner with a track record of adapting to new technical stacks, evolving ecosystems, and large-scale software architectures. Nuvei is an equal-opportunity employer that celebrates collaboration and innovation and is committed to developing a diverse and inclusive workplace. The team at Nuvei is comprised of a wealth of talent, skill, and ambition. We believe that employees are happiest when they’re empowered to be their true, authentic selves. So, please come as you are. We can’t wait to meet you. Benefits Private Medical Insurance Office and home hybrid working Global bonus plan Volunteering programs Prime location office close to Tel Aviv train station Our recruitment process may use automated tools, including AI, to support application management and candidate shortlisting.