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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Security Analyst - **Company:** Arch Capital Group Ltd. - **Location:** London, UK - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Microsoft Windows, Amazon Web Services, Proxy Servers, Antivirus Softwares, Apple Mac Systems, Microsoft Azure, Unix, Cloud Computing, Cloud Computing Security, Cyber Security, Linux, Intrusion Detection and Prevention, Python (Programming Language), Network Administration, Windows PowerShell, Security Information and Event Management, Software Vulnerability Management, Data Logging, Scripting, Google Cloud, Software Security, Cyber Threat Analysis - **Published:** May 23, 2026 - **Apply:** https://uk.indeed.com/viewjob?jk=629d744e0fffeb18 ## About the Role Do you have experience in macOS?, Do you have a Bachelor's degree?, * 3-5 years of related security experience * Deep understanding of cyber incident response processes and procedures. * Understanding of Cyber Threat Intelligence and Cyber Security Awareness concepts. * In-depth understanding of Windows operating systems and general knowledge of Unix, Linux, and Mac operating systems. * Knowledgeable with various security infrastructure tools such as intrusion prevention/detection systems, anti-virus/endpoint detection and response, proxy servers, email controls, and SIEM. * Ability to work as part of a team, show initiative and take on new tasks as assigned. * Ability to perform risk analysis and communicate that risk to others. * General understanding of AWS, Azure, and/or Google Cloud. * Experience in a 24x7 global enterprise, preferably in the financial industry. * SANS GIAC (GSEC, GCIA, GCIH, GCFA, etc.), CISSP, CEH, Security+, or similar information security certifications. * Scripting experience, preferably Python and/or PowerShell. SIEM knowledge and experience. * General system and/or network administration experience. * Cloud Security Experience (AWS and Azure). * Bachelor's degree in related field of study, preferred. Security+ or other technical certifications, preferred. ## Description The Senior Security Analyst will prepare and defend our networks, data and systems (on-premise and in the cloud) from attack. They will use an understanding of tactics, techniques, and procedures used by attackers and apply that knowledge to assist in the investigation of cyber-attacks to ensure steps are taken to mitigate the threat and help the team to track all security incidents to closure. The Senior Security Analyst will work on activities such as incident response, logging/monitoring support, application security, configuration reviews, and configuration and maintenance of various security controls, both on premise and on cloud infrastructure. They will assist with creating and revising information security standards and policies as well as create and produce applicable metrics. They will also be responsible for participating in both internal and external audits, training new analysts, and mentoring current analysts., * Participate in vulnerability management related activities including the identification, prioritization and directing the remediation of security related vulnerabilities. * Design, develop, implement, and maintain security documentation. * Document all tickets and alerts worked on in the required SLA. Monitor and respond to SIEM alerts. * Participate in rotational on-call responsibilities. * Train new analysts and provide a mentorship role to current analysts * Participate in security related projects and assist in maintaining security tools and processes. ## Related Videos - [WeAreDevelopers LIVE - Node and Package Security](https://www.wearedevelopers.com/videos/2138-wearedevelopers-live-node-and-package-security) - [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker) - [JavaScript? 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