> Markdown version of [/jobs/ext/4017213-site-reliability-engineer-security-cleared](https://www.wearedevelopers.com/jobs/ext/4017213-site-reliability-engineer-security-cleared). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Site Reliability Engineer - Security Cleared - **Company:** G-tech Talent Limited - **Location:** London, UK (Remote available) - **Salary:** £90,000.0 - £105,000.0 - **Contract:** Permanent contract - **Skills:** Java (Programming Language), JavaScript (Programming Language), Artificial Intelligence, Amazon Web Services, Systems Engineering, Microsoft Azure, Bash Shell, Big Data, Cloud Computing, Configuration Management, Computer Programming, Continuous Integration, Software Debugging, Linux, DevOps, Distributed Systems, Fault Tolerance, Information Technology Operations, Python (Programming Language), Performance Tuning, Windows PowerShell, Reliability Engineering, Cloud Services, Ansible, Software Deployment, Software Engineering, Google Cloud, Load Balancing, Large Language Models, Reliability of Systems, Infrastructure as Code (IaC), Kubernetes, Information Technology, Deployment Automation, Production Code, Terraform, Docker, Service Stack, Golang - **Published:** October 30, 2026 - **Apply:** https://www.reed.co.uk/jobs/site-reliability-engineer-security-cleared/57507715 ## About the Role Ideally, you'll have 1-5 years of commercial experience in Site Reliability Engineering, Infrastructure Engineering or a closely related software engineering discipline. You'll need: Strong software engineering fundamentals and the ability to write production-level code. Hands-on experience with Kubernetes, Docker and containerised production environments. Experience building, maintaining and supporting large-scale infrastructure or distributed systems. Proficiency in at least one of Python, Java, Go or JavaScript. Strong Linux, troubleshooting and systems engineering capabilities. Experience improving system reliability through automation and engineering best practices. A Computer Science, Software Engineering or related degree. Experience working within defence technology, government, national security or similarly complex technical environments would be particularly attractive. Knowledge of Terraform, Ansible, CI/CD and cloud infrastructure would also be advantageous. Important: These are genuine engineering positions rather than traditional IT Operations roles. We're particularly interested in candidates who combine strong software development capabilities with hands-on infrastructure and production engineering experience. SECURITY CLEARANCE - MANDATORY Due to the sensitive nature of the programmes, candidates must meet the following requirements: * Already hold ACTIVE UK Developed Vetting (DV) Security Clearance. * Hold sole British nationality (no dual nationality). * Be able to work within secure UK Government environments. * Be based in London or willing to relocate., * java * infrastructure engineer * AWS & Azure Cloud * Bash & PowerShell Scripting * Docker & Kubernetes * Google Cloud Platform * JavaScript and Related Scripting Languages * Kubernetes * Python * Site Reliability Engineer (Job Titles) ## Description We're looking to recruit 3 talented Site Reliability Engineers (SREs) to design, build, automate and maintain highly scalable, secure and mission-critical production environments supporting UK Government and national security programmes. These positions offer an excellent opportunity for software-focused infrastructure engineers who enjoy solving complex engineering problems, writing production-quality code and taking ownership of sophisticated technical environments. THE TECHNOLOGY STACK We're particularly interested in engineers with experience across several of the following technologies: Software Engineering & Programming * Python, Java, Go (Golang) or JavaScript * Bash scripting and automation * Production-level software development * Debugging, performance optimisation and troubleshooting * Software engineering principles and distributed systems architecture Cloud, Containers & Infrastructure * Kubernetes and Docker * Container orchestration and management * Linux-based production environments * AWS, Microsoft Azure or Google Cloud Platform (GCP) * Cloud infrastructure engineering * High-availability and fault-tolerant architectures * Load balancing, scalability and configuration management DevOps, Automation & Reliability Engineering * Infrastructure as Code (IaC) * Terraform and Ansible * CI/CD pipelines and deployment automation * Monitoring, alerting and observability * Production incident management and root-cause analysis * Infrastructure upgrades and platform migrations * System reliability, performance and operational efficiency AI & Advanced Engineering * Large Language Models (LLMs) * AI-assisted engineering and automation * Large-scale data platforms * Automated deployment and infrastructure management WHAT YOU'LL BE DOING You'll work within a highly technical engineering environment, taking responsibility for the reliability, performance and scalability of critical production infrastructure. Your responsibilities will include: * Designing, developing and maintaining scalable, highly available production services. * Writing production-quality software to automate infrastructure operations and improve system reliability. * Deploying and managing containerised applications using Kubernetes and Docker. * Engineering solutions to complex infrastructure and distributed systems challenges. * Developing automation to eliminate repetitive operational tasks. * Managing monitoring, alerting, configuration management and production upgrades. * Supporting software deployments, infrastructure migrations and platform enhancements. * Investigating and resolving complex production incidents. * Collaborating with software engineering, infrastructure and product development teams. * Supporting an on-call engineering rotation approximately once every 5-6 weeks.