SEON is the leading fraud prevention system of record, catching fraud before it happens at any point across the customer journey. Trusted by over 5,000 global companies, we combine your company’s data with our proprietary real-time signals to deliver actionable fraud insights tailored to your business outcomes. We deliver the fastest time to value in the market through a single API call, enabling quick and seamless onboarding and integration. By analyzing billions of transactions, we’ve prevented $200 billion in fraudulent activities, showcasing why the world’s most innovative companies choose SEON.
A Staff Full Stack Engineer in our organization brings strong software engineering expertise first but also comes with a strong mentoring mindset to support engineering teams and work closely with our engineering leadership. SEON relies on a product-led growth approach.
Our Customer Platform Team is the heart of SEON: we develop core services supporting the whole system of SEON and the primary customer-facing application. We’re continuously adding new features to improve the UX and workflow for our customers and their fraud analysis capabilities. This mission involves core product functions such as backend and frontend development, R&D, design, and database development.
This role offers flexibility and is based in our Budapest office with a hybrid work schedule

• Contribute to our Customer Platform team, which is growing to be an essential part of our fraud prevention solution
• Deliver high-quality NodeJS, TypeScript and React code with simplicity, performance, and scalability in mind
• Work together with the team to design and implement cutting-edge client and database-related application features
• Maintain & develop in NodeJS, TypeScript, React, NestJS, REST, RDBMS & backend of our applications
• Supporting, refining and suggesting improvements to the current codebase
• Providing expertise, reviewing pull requests of other team members suggesting improvements and best practices for the team
• Help during the whole Software Development Life Cycle including the design of new features and services
• Bring an engineering mindset, you care about how things work, how they scale, and how they can be improved over time.