Senior Software Engineer II — Account Integrity & Security

Wise; Greater London; On-site; GBP 111,000 - 145,000; Full time

Job summary

Wise is hiring a Senior Software Engineer II for the Account Integrity team. You will work on a high-impact engineering role focused on safeguarding customer accounts worldwide, delivering end-to-end projects that strengthen fraud prevention.

Leverage Java/JVM, Spring, and CI/CD to build scalable controls. You will own the backend and contribute to the frontend, collaborating with Product, Data Science, and Investigations to drive automated, data-driven improvements.

Qualifications

• Experience with Java/JVM and Spring framework.
• Proven experience designing and operating CI/CD pipelines and distributed systems.
• Strong data skills: relational and non-relational databases and data modelling.
• Excellent communication and collaboration across product, data science, and investigations.

Responsibilities

• Improve Wise's financial crime prevention infrastructure and systems.
• Own end-to-end projects with measurable impact on customer security.
• Build and refine controls to protect customer accounts against takeovers.
• Balance backend (80%) and frontend (20%) work in crime prevention and detection systems.

Skills

Java

Spring framework

CI/CD

Distributed systems

Relational databases

Non-relational databases

Test Driven Development

Product mindset

Data-driven decisions

Team collaboration

Job description

Wise is hiring a Senior Software Engineer II for the Account Integrity team. You will work on a high-impact engineering role focused on safeguarding customer accounts worldwide, delivering end-to-end projects that strengthen fraud prevention.

Leverage Java/JVM, Spring, and CI/CD to build scalable controls. You will own the backend and contribute to the frontend, collaborating with Product, Data Science, and Investigations to drive automated, data-driven improvements.