London-based Backend Engineer – Account Insights Wise is a global technology company building the best way to move and manage the world’s money. We’re hiring a Backend Engineer to help create the Account Insights team and turn millions of transactions into fast, trustworthy insights that customers can act on.

About The Role

What we’re looking for:

Build the backend for customer-facing insights features such as spending summaries, travel insights, and spend controls like budgets and recurring-payment tracking.
Work across a high-throughput streaming and storage stack (Java/Spring Boot, Kafka, stream processing) to aggregate activity data accurately and serve it through low-latency, well-documented APIs.
Improve categorisation accuracy so the numbers customers see are trustworthy.
Own components and end-to-end flows—from development through deployment to running in production, including on-call rotation.
Write high-quality tests, robust documentation, and review code to raise the bar across the team.
You deliver medium-sized backend projects independently and see them through the full lifecycle, collaborating with the team for the toughest problems.
Strong backend fundamentals and proficiency in Java/Spring Boot, plus understanding of distributed systems concepts like asynchronous communication and event streaming.
You write well-tested, high-quality code and actively improve your work.
You communicate openly and contribute to a collaborative, inclusive team.
Nice to have: experience with Kafka, stream processing, or high-throughput low-latency services

About the role

London-based Backend Engineer – Account Insights Wise is a global technology company building the best way to move and manage the world’s money. We’re hiring a Backend Engineer to help create the Account Insights team and turn millions of transactions into fast, trustworthy insights that customers can act on.

About The Role

What we’re looking for:

Build the backend for customer-facing insights features such as spending summaries, travel insights, and spend controls like budgets and recurring-payment tracking.
Work across a high-throughput streaming and storage stack (Java/Spring Boot, Kafka, stream processing) to aggregate activity data accurately and serve it through low-latency, well-documented APIs.
Improve categorisation accuracy so the numbers customers see are trustworthy.
Own components and end-to-end flows—from development through deployment to running in production, including on-call rotation.
Write high-quality tests, robust documentation, and review code to raise the bar across the team.
You deliver medium-sized backend projects independently and see them through the full lifecycle, collaborating with the team for the toughest problems.
Strong backend fundamentals and proficiency in Java/Spring Boot, plus understanding of distributed systems concepts like asynchronous communication and event streaming.
You write well-tested, high-quality code and actively improve your work.
You communicate openly and contribute to a collaborative, inclusive team.
Nice to have: experience with Kafka, stream processing, or high-throughput low-latency services

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