Microsoft Sentinel Security Engineer - Onboarding & Defender XDR

Integrity360; Greater London; On-site; GBP 65,000 - 95,000; Full time

Job summary

Integrity360 in the United Kingdom seeks a Microsoft Security Engineer to onboard clients to our MSSP ecosystem with Microsoft Sentinel at the core. You will configure workspaces, connectors and data sources, delivering secure deployments aligned with service design.

The role requires hands-on experience with Defender XDR workloads and creating clear technical designs, runbooks and handover materials. You will collaborate with clients, architects and SOC teams, supported by ongoing training.

Qualifications

• Experience onboarding Microsoft Sentinel in MSSP environments.
• Hands-on with Defender XDR workloads (Endpoint, Identity, Office 365, Cloud Apps).
• Ability to develop, deploy and document high‑level designs and runbooks.
• Client-facing engineering role with strong communication skills.

Responsibilities

• Deliver end-to-end onboarding of client Microsoft Sentinel environments into the MSSP service.
• Configure Sentinel workspaces, content solutions, data connectors, analytics rules, automation rules, watchlists, workbooks and related components in accordance with approved designs and service standards.
• Onboard Microsoft, third-party, cloud, network, identity and application log sources using supported collection methods.
• Design and implement data filtering and transformation to improve signal quality and control ingestion costs.
• Produce accurate high-level designs, implementation plans, configuration records, test evidence, operational runbooks and handover documentation.
• Coordinate with clients, project managers, architects, SOC analysts and service teams to manage dependencies, risks, actions and readiness for service transition.

Skills

Microsoft Sentinel

Kusto Query Language

Azure security

SOC collaboration

Onboarding experience

Tools

Azure Monitor Agent

Data Collection Rules

Log Analytics workspaces

Syslog

CEF

PowerShell

Job description

Integrity360 in the United Kingdom seeks a Microsoft Security Engineer to onboard clients to our MSSP ecosystem with Microsoft Sentinel at the core. You will configure workspaces, connectors and data sources, delivering secure deployments aligned with service design.

The role requires hands-on experience with Defender XDR workloads and creating clear technical designs, runbooks and handover materials. You will collaborate with clients, architects and SOC teams, supported by ongoing training.