Senior Product Engineer - Rules Platform

We are seeking an experienced Senior Backend Engineer to join our Rules Platform Team at Wise, a global technology company building the best way to move and manage the world's money. As a senior member of this team, you will be a key technical voice, leading and contributing to impactful, cross-functional engineering initiatives, driving critical system architecture and technical design decisions, and ensuring high service standards by monitoring and optimizing system performance.

You will join the team at an exciting time of growth, as we scale our core risk assessment capabilities. Your immediate impact will be to:

• Lead the design and implementation of complex backend initiatives that form the foundation of our risk platform.
• Take ownership of maintaining and evolving internal libraries and shared components consumed by multiple teams, ensuring they are robust, scalable, and well-documented.
• Contribute directly to the architectural design and scaling of our risk assessment services, ensuring they meet high standards for performance, reliability, and data consistency.
• Work as a key technical partner with multiple stakeholders, including Product, FinCrime, and other engineering teams, to deliver robust, cross-functional solutions.

Requirements:

• Strong proficiency in JVM-based languages (e.g., Java, Kotlin).
• Proven experience maintaining internal libraries or shared components consumed by multiple teams.
• Experience working with Kafka and SQL databases in complex backend systems where reliability and data consistency are critical.
• Strong mentorship skills with a passion for supporting and leveling up junior engineers.
• The ability to prioritize, evaluate tradeoffs, and make informed technical decisions, and comfort in leading technical discussions and architecture proposals.
• Proactivity and a collaborative mindset, with experience working closely with Product Managers on decision-making.

Some extra skills that would be useful:

• Experience with the Spring framework.
• Experience building or working with custom DSLs (Domain-Specific Languages).
• Background in the FinCrime domain, risk decisioning teams, or regulatory environments where auditability and traceability are important.