Senior Information Security Engineer - London

Client Server; Greater London; Hybrid; GBP 40,000 - 70,000; Full time

Benefits offered by this job

Pension

Private healthcare

Life assurance

Income protection

Tax-free childcare

WFH flexibility

Job summary

Client Server in London is seeking a Senior Information Security Engineer to own and operate security controls across endpoints, identities, and data. You will work across the Microsoft security stack, including Defender and Entra IAM, to strengthen our security posture.

We embrace AI in security, offer hybrid working with the CISO and senior stakeholders, and provide a competitive package with pension, private healthcare, life assurance, and income protection.

Qualifications

• Strong experience in security engineering or security operations within a Microsoft environment.
• Hands-on experience across Microsoft Defender, Microsoft Entra IAM, Endpoint Security, Security Operations or Incident Response, Access Reviews and Access Management, Data Security, and Purview.
• Experience working with an outsourced SOC or managed security provider.
• Technically strong, pragmatic, and keen to improve things with the ability to learn and take ownership.
• Collaborative and pragmatic with excellent communication skills.

Responsibilities

• Own and operate security controls across endpoint, network, identity, and data security.
• Work extensively across the Microsoft security ecosystem, including Defender.
• Manage and improve endpoint security and, ideally, email security.
• Own Microsoft Entra access management and access review cycles.
• Improve and automate identity and access management processes.
• Develop the organisation's approach to data security.
• Act as a key link between the SOC and internal Infrastructure and Security teams.
• Improve security tooling, processes, and operational maturity.
• Collaborate closely with Infrastructure and wider technology teams to strengthen our overall security posture.

Skills

Security engineering

Security operations

Microsoft Defender

Microsoft Entra IAM

Endpoint Security

Incident Response

Access Reviews

Access Management

Data Security

Purview

Tools

Microsoft Defender

Microsoft Entra IAM

Purview

Job description

Salary: £40,000 - 70,000 per year

Requirements

• Strong experience in security engineering or security operations within a Microsoft environment
• Hands-on experience across Microsoft Defender, Microsoft Entra or IAM, Endpoint Security, Security Operations or Incident Response, Access Reviews and Access Management, Data Security, and Purview
• Experience working with an outsourced SOC or managed security provider
• Technically strong, pragmatic, and keen to improve things with the ability to learn and take ownership
• Collaborative and pragmatic with excellent communication skills

Responsibilities

• Own and operate security controls across endpoint, network, identity, and data security
• Work extensively across the Microsoft security ecosystem, including Microsoft Defender
• Manage and improve endpoint security and, ideally, email security
• Own Microsoft Entra access management and access review cycles
• Improve and automate identity and access management processes
• Develop the organisations approach to data security
• Act as a key link between the SOC and internal Infrastructure and Security teams
• Improve security tooling, processes, and operational maturity
• Collaborate closely with Infrastructure and wider technology teams to strengthen our overall security posture

Technologies

• AI
• IAM
• Network
• Security

More

We are a scale-up software house working on a financial Tech for Good product that helps enable easier money transfer to people in emerging economies, disaster zones, and war zones without access to a bank account. Our platform supports relatives, charities, the UN, and UNICEF in sending money to remote communities where it is needed most using sophisticated technology. We are a relatively lean organisation with little hierarchy and genuine ownership, giving you the opportunity to work closely with the CISO and senior stakeholders, help shape security strategy, and make a visible difference. We are also embracing AI across security and the wider organisation, making this an exciting point in our technology journey. This Senior Information Security Engineer role is based in London with WFH flexibility and offers a competitive package including salary up to 110k, pension, private healthcare, life assurance, income protection, and tax free childcare.

last updated 37 week of 2026