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Backend Engineer – Platform; Java​/Kotlin, AWS

Job in Greater London, London, Greater London, W1B, England, UK
Listing for: United States Digital Space LLC
Full Time position
Listed on 2026-07-17
Job specializations:
  • Software Development
    Backend Developer, Java Developer, Kotlin, AWS
Salary/Wage Range or Industry Benchmark: 70000 - 100000 GBP Yearly GBP 70000.00 100000.00 YEAR
Job Description & How to Apply Below
Position: Backend Engineer – Payments Platform (Java/Kotlin, AWS)
Location: Greater London

Wiser in London is seeking a backend engineer to help build the Direct Debit/API powered platform. You will design, test, and maintain backend services in Java and Kotlin using Spring Boot, deployed on AWS, serving millions of customers.

You will work on RESTful APIs, data schemas in PostgreSQL, event-driven architectures with Apache Kafka, and a payment orchestration system to optimize costs and reliability. Strong focus on security and reliability.

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