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# Senior Software Engineer - Backend & Infrastructure

- **Company:** Moon Intelligence
- **Location:** London, United Kingdom (Remote available)
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Amazon Web Services, Computing Platforms, Cloud Computing, Continuous Integration, Software Debugging, Monitoring of Systems, Identity and Access Management, Python (Programming Language), Commercial Software, Software Engineering, Delivery Pipeline, Spring-boot, Backend
- **Published:** October 16, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=8cbf4cdf6bb20830

## About the Role

* Strong commercial software engineering experience in either Java/Spring Boot or Python.
 * Substantial hands-on AWS experience, including responsibility for production infrastructure.
 * Experience working with containers and infrastructure as code.
 * Good understanding of CI/CD, monitoring and observability.
 * Solid knowledge of cloud networking, IAM and security.
 * Strong debugging and problem-solving skills across infrastructure and application code.
 * Ability to work autonomously, take ownership and collaborate effectively within a small engineering team.
 * We don't expect candidates to be proficient in both Java and Python. Strong experience in either language, combined with solid infrastructure expertise, is what matters.

## Description

We're looking for a Senior Backend & Platform Engineer to take ownership of our AWS infrastructure while contributing directly to the development of our software platforms.

This is a hands-on engineering role combining cloud infrastructure and application development. You'll be responsible for ensuring our production environment is reliable, secure and scalable, while spending a significant proportion of your time writing production software.

Depending on your background, your development work will focus on either our core Java platform or our Python-based market access and trading technology.

You'll be part of a small engineering team with considerable autonomy and the opportunity to make a meaningful impact across our systems.

What you'll be working on

 * Taking ownership of our AWS infrastructure, including reliability, security, performance and ongoing improvements.
 * Developing and maintaining production software in Java/Spring Boot or Python.
 * Managing containerised services, deployment pipelines and infrastructure as code.
 * Improving monitoring, observability and incident response.
 * Identifying and resolving infrastructure and application issues in production.
 * Working closely with other engineers to improve the architecture, reliability and maintainability of our systems.