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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Principal Systems Engineer - **Company:** Harris Computer - **Location:** London, UK (Remote available) - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** .NET Framework, Systems Engineering, Microsoft Azure, Cloud Computing, Databases, Domain Name System (DNS), Event Logging, Github, Monitoring of Systems, Internet Information Services (IIS), Python (Programming Language), Microsoft Message Queuing, Microsoft Software, Networking Basics, Performance Tuning, Windows PowerShell, Query Optimization, Reliability Engineering, TCP/IP, Datadog, Scripting, Enterprise Software Applications, Load Balancing, Cloud Platform System, Firewalls (Computer Science), Containerization, Kubernetes, Infrastructure Automation Frameworks, Information Technology, Deployment Automation, Performance Monitor, Bicep, Perfmon, Terraform, Windows Clustering, New Relic (SaaS), Appdynamics, Dynatrace, Azure Resource Manager, Servicenow - **Published:** August 29, 2026 - **Apply:** https://harriscomputer.wd3.myworkdayjobs.com/1/job/London-United-Kingdom/Principal-Systems-Engineer_R0043980-1 ## About the Role * 7+ years of experience supporting enterprise applications, infrastructure, or cloud environments. * Monitoring & Observability: Strong experience with APM tools such as LogicMonitor, AppDynamics, Azure Monitor, SentryOne, Dynatrace, Datadog, or New Relic. * Microsoft Stack: Deep knowledge of Windows Server administration, IIS, .NET applications, Windows Clustering, MSMQ, Event Logs, and PerfMon. * Database Skills: Strong SQL Server experience, including performance tuning, query optimization, blocking analysis, and Always On Availability Groups. * Cloud & Networking: Experience with Azure cloud environments and a solid understanding of networking fundamentals (DNS, TCP/IP, load balancing, firewalls). * ITSM & ITIL: Familiarity with ServiceNow (or other ITSM platforms) and ITIL principles. Preferred Skills: * Scripting with PowerShell, Python, or similar languages. * Infrastructure as Code (Terraform, ARM Templates, Bicep). * CI/CD pipelines and deployment automation (Azure DevOps, GitHub Actions). * Experience with Kubernetes and containerized workloads. * Experience implementing SLOs, SLIs, and Error Budgets. * Experience in a healthcare technology or patient care environment. Education: * Bachelor's Degree in Computer Science, Information Technology, or Engineering is preferred; equivalent professional experience will be considered. ## Description As a Site Reliability Engineer (SRE) at Altera, you will be responsible for ensuring the reliability, scalability, and performance of our hosted healthcare platforms. This role blends software and systems engineering to enhance service availability, automate operations, and improve the customer experience. You will act as a technical leader in monitoring, troubleshooting, incident response, and continuous improvement across our cloud and hybrid environments., * Maintain and improve the reliability, availability, and performance of our production environments. * Lead the investigation and resolution of complex application, database, and infrastructure issues. * Participate in incident management, conduct root cause analysis (RCA), and contribute to post-incident reviews to prevent future occurrences. * Define and measure Service Level Indicators (SLIs) and Objectives (SLOs) to meet our service commitments. * Develop proactive monitoring and alerting strategies to identify and resolve issues before they impact customers. * Automate operational tasks using scripting and Infrastructure-as-Code (IaC) to improve efficiency. * Partner with engineering and cloud teams to refine deployment, monitoring, and support processes. * Provide technical leadership during major incidents and act as a key escalation point for critical issues. ## Related Videos - [Systems Thinking for Performance: How to Diagnose and Fix Slow Systems without Guessing](https://www.wearedevelopers.com/videos/2103-systems-thinking-for-performance-how-to-diagnose-and-fix-slow-systems-without-guessing) - [An Applied Introduction to eBPF with Go](https://www.wearedevelopers.com/videos/1075-an-applied-introduction-to-ebpf-with-go) - [Innovating Developer Tools with AI: Insights from GitHub Next](https://www.wearedevelopers.com/videos/1268-innovating-developer-tools-with-ai-insights-from-github-next) - [Back(end) to the Future: Embracing the continuous Evolution of Infrastructure and Code](https://www.wearedevelopers.com/videos/440-back-end-to-the-future-embracing-the-continuous-evolution-of-infrastructure-and-code) - [Shipping Faster with Less: Render on Cloud Hosting, AI Workloads, and the Future of DevOps](https://www.wearedevelopers.com/videos/1894-shipping-faster-with-less-render-on-cloud-hosting-ai-workloads-and-the-future-of-devops) - [Turning Container security up to 11 with Capabilities](https://www.wearedevelopers.com/videos/718-turning-container-security-up-to-11-with-capabilities) ## Related Articles - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [What Are The Top Skills Required For Azure Developers?](https://www.wearedevelopers.com/magazine/77-what-are-the-top-skills-required-for-azure-developers) - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Top-Paying Tech Jobs (with Salaries)](https://www.wearedevelopers.com/magazine/372-top-paying-tech-jobs-with-salaries)