Senior Full Stack Developer – Scam Prevention

About the role

Wise is hiring a Senior Full Stack Developer (Software Engineer) for its Scam Prevention team in Tallinn. The team safeguards the platform against sophisticated financial crime using machine learning, real-time transaction monitoring and data analysis, and the role has a strong product focus on protecting customers.

Key responsibilities

• Continuously improve the financial crime prevention infrastructure and systems
• Build and refine critical controls that prevent customers from being scammed
• Drive both backend and frontend development for scam prevention and detection systems, with 80% of the work on backend and 20% on frontend
• Take end-to-end ownership of projects with a direct, measurable impact on customer security

Required profile

• Professional experience with Java or other JVM-based languages, including the Spring framework
• Experience building scalable web applications handling large traffic, ideally with React-based frontend and JavaScript/TypeScript
• Proven experience designing and operating CI/CD pipelines, distributed and concurrent systems
• Strong product mindset, accountability and ability to drive projects independently
• Excellent communication skills to explain complex technical concepts to Product, Data Science and Investigations teams

Required skills

• Java, Spring, React, JavaScript/TypeScript
• Relational and non-relational databases, including query optimisation and resilient schema design
• Test Driven Development and best coding practices