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# Senior Backend Engineer

- **Company:** Understanding Recruitment
- **Location:** Greater London, UK (Remote available)
- **Experience:** Expert
- **Salary:** £105,000.0
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Artificial Intelligence, Test Data, AI Infrastructure, Spring-boot, Backend, Kotlin, Information Technology, Api Design, Data Generation
- **Published:** July 1, 2026
- **Apply:** https://www.understandingrecruitment.com/job/senior-backend-engineer-9132/

## About the Role

* Start-up or scale-up experience
 * BSc in Computer Science or STEM subject from Russell Group university
 * Have worked in product-focused tech companies
 * Kotlin
 * (Can have also worked with with Java)
 * Spring Boot

## Description

Do you love coding with Kotlin?

Have you worked in a fast-paced start-up environment?

🚀 Senior Backend Engineer - AI transforming the future 🚀

📍 Location: Hybrid in London approx. 1-2 days a week (flexible work hours)

💰 Compensation: Up to £105k + bonus + equity

We are very excited to have just partnered with a rapidly rising AI infrastructure company that's transforming how development and QA teams create, manage, and test high-quality data at speed and scale.

They've built the first API-driven data generation platform that enables organisations to generate better-than-production test data in minutes, without the never-ending manual work or compliance risks.

Having just received their Series A funding, they're hiring Senior Backend Engineers with Kotlin (or a combination of Java & Kotlin experience) to build new product features, improve performance and scalability, and help define technical direction within a growing engineering team.

A Senior Backend Engineer will have:

 * Start-up or scale-up experience
 * BSc in Computer Science or STEM subject from Russell Group university
 * Have worked in product-focused tech companies
 * Kotlin
 * (Can have also worked with with Java)
 * Spring Boot

You will enjoy many great benefits too:

 * Flexible work hours
 * Bonus
 * Share options
 * Personal development budget
 * Private healthcare, dental and eye care
 * Drinks and snacks provided in office
 * Collaborate social team, working & learning from very smart engineers

Currently with a team across Europe, they are looking to expand their London team and build a close-knit team, combining collaborative face-to-face working with the flexibility of working from home.

They provide a highly flexible, trusting, and supportive environment where engineers are empowered to take ownership. As strong advocates for equality, they are committed to fostering an inclusive culture that promotes fairness, diverse perspectives, and equal opportunities at every level.

If you have worked with Kotlin in a fast-paced, product-focused startup environment, apply now for this fantastic Senior Backend Engineer opportunity!


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