Senior Security Engineer

CFC; Greater London; On-site; GBP 90,000 - 130,000; Full time

Job summary

CFC is seeking a Senior Security Engineer to act as a hands-on SME in security and privacy, guiding teams through complex issues and improving governance, management and operations. You will implement and verify automated controls in detection, IAM, data protection, product security, and control assurance.

The role covers designing security standards, threat modelling, and running incident exercises while maturing security workflows within a fast-paced environment.

Qualifications

• Proven experience in security operations, threat detection and response.
• Strong knowledge of CI/CD, cloud-native architecture and IaC.
• Experience leading threat modelling and security design trade-offs.

Responsibilities

• Diagnose and refine detections, alerts and security logs across systems.
• Lead incident response operations and publish incident reports.
• Design threat assessment services and model attacks.
• Identify vulnerabilities and implement preventive controls.
• Provide expert security design guidance for systems and projects.
• Develop and maintain secure data protection and access controls.

Skills

Security operations

Threat detection

Cloud security

CI/CD

Infrastructure as Code

Threat modelling

Communication with stakeholders

Job description

Senior Security Engineer

Department: CISO

Employment Type: Permanent - Full Time

Location: UK - London

Description

At CFC, technology is at the heart of everything we do. We are looking for Senior Security Engineers to act as hands on problem-solvers and subject matter experts in their security and/or privacy domain, guide other people through complex issues, and lead continuous improvement of security governance, management and operations.

This is a lead individual contributor role able to both implement and verify automated controls in detection and response, identity and access, data protection, product security, or control assurance. The responsibilities below are a broad sample of security engineering across the information security function. You will be a specialist in a few and have a more general understanding and/or experience in the rest.

About the role

This is a broad selection of responsibilities across the information security function at CFC. The specific role responsibilities will depend on the individual’s background and team’s mission.

• Diagnoses and refines successful and failed detections, alerts and security logs, including network and endpoint alerts, to ensure security logging and monitoring coverage meets the needs of CFC's business objectives and its technology and threat environments.
• Leads incident response operations and continuous improvement from investigation through containment and recovery, publishes incident reports with revised playbooks.
• Designs and operates threat assessment services, including threat profiling and modelling and attack simulation, and records attack paths, threat intelligence and new requirements arising from assessments.
• Diagnoses complex chains of vulnerabilities or misconfigurations in software, application security tests, the build pipeline, malware defences, email and web protection, secure configuration or network infrastructure to root cause, and designs and implements controls to prevent recurrence.
• Produces expert guidance on the security design for a system and leads the security aspects of definitions of ready and done in projects.
• Diagnoses systemic contributing factors in conditional access, privileged access, device verification or the identity lifecycle failures, and implements the controls to prevent recurrence.
• Classifies sensitive data sets that have or will fail control coverage or effectiveness testing and implements the data protection controls to prevent recurrence, covering data loss prevention, encryption, privacy requests, insider detection and disposal.
• Evaluates control assurance, audit and continuous controls monitoring findings against the asset inventory, traces gaps, and updates standards and monitoring to prevent recurrence.
• Builds integration templates, self-serve, deterministic and non-deterministic workflow automations and analytics for repeated security tasks and coaches teams on runbooks.
• Leads incident exercises, runs tabletops against the continuity plan, and coaches CFC colleagues through awareness training and behavioural nudges.
• Experience building and maturing security standards, workflows, guidance and operational controls.

About you

We are interested in engineers who have applied their specialist technical expertise at scale and speed. You will likely bring:

• Proven experience in a technical security role, including security operations, threat detection and response, security engineering, cloud security, or application security within a fast-paced regulated organisation.
• Strong knowledge of CI/CD, cloud-native architecture, Infrastructure as Code and software supply-chain security.
• Experience leading threat modelling and resolving complex security and privacy design trade-offs.
• Ability to assess and deploy emerging data protection, AI and agentic engineering practices pragmatically and establish proportionate controls.
• Ability to influence senior technical and non-technical stakeholders through evidence, technical credibility and a pragmatic appreciation of both rigour and speed.
• Practice guiding engineers who are earlier in their career in the same domain, and coaching people through an exercise or a training session.
• Keen security mindset with excellent analytical and problem-solving skills, capable of assessing complex risks, identifying root causes, and delivering practical, threat and risk-informed solutions.

Core Values

Love what you do: We show up each day ready to take on the world. Our passion and intensity set us apart and makes the difference to our colleagues, customers, brokers and carriers.

Challenge everything: We’re never afraid to question the way that things are done and we constantly challenge ourselves and others to makes things better.

Have fun, be good:Insurance is a serious business, but we don’t take ourselves too seriously. We make it fun to work at CFC, we welcome all viewpoints, and we treat everyone how we would expect to be treated.