Senior Detection & Response Consultant
Salary £ Competitive
Remote, with occasional travel to London office
Vacancy listed 23/12/2025
Application deadline 16/01/2026
Details
Reliance Cyber is a specialist cyber security operations partner, focused solely on identifying, preventing and responding to breaches. We combine deep engineering and powerful automation with a constant human-in-the-loop approach for all our services. Our best-in-class technology reduces our clients’ threat exposure, while our experts work to detect and resolve breaches faster. As a trusted partner in an increasingly complex landscape, we defend our clients’ business continuity. We turn their security into a competitive advantage, enabling them to focus on their goals with confidence. 

It is our people that makes us exceptional – and we are on the lookout for a Senior Detection & Response Consultant to join our growing team!  

In this role, you will be the technical authority responsible for auditing, testing, and verifying the security posture of our clients' most critical assets. Unlike a generalist auditor, you will use your deep foundational knowledge of technology to conduct granular configuration reviews across cloud, identity, and network domains. You will look beyond the "tick-box" to understand actual risk.  Furthermore, you will lead our proactive threat operations services, conducting Compromise Assessments and Threat Hunts to uncover active or dormant malicious activity that standard controls may have missed. You will be instrumental in delivering technical excellence across our Proactive Services catalogue.

To be suitable for this role, you will need to demonstrate the following:

  • Foundational Technical Knowledge: Strong understanding of networking (TCP/IP, routing), operating systems (Windows/Linux internals), and cloud architectures including Infrastructure as Code (IaC) principles and Container Security best practices. 
  • Threat Hunting & DFIR: Proven experience in conducting threat hunts and looking for IoCs and TTPs to identify malicious behaviour. Experience with EDR platforms and SIEM query languages is essential.
  • Offensive Mindset: A strong understanding of offensive tactics (Red Teaming/Pentesting methodologies) to inform defensive strategies and hunt hypotheses.
  • Security Tooling Proficiency: Hands-on experience with EDR, SIEM, CSPM (Cloud Security Posture Management), and vulnerability management tools. 
  • SASE/ZTNA Expertise: Strong knowledge of Secure Access Service Edge (SASE) and Zero Trust Network Access (ZTNA) principles and architectures.
  • Scripting (Desirable): Proficiency in Python, Powershell and Yara.
  • Certifications (Desirable): Technical certifications such as GIAC (GCFA, GCFE, GMON, GCIH) or similar threat hunting/security operations qualifications.

This is a fantastic opportunity to develop your career in an environment that values people and champions progress. If you’re motivated, ambitious, and eager to grow with a great company, we look forward to hearing from you!