What you'll be doing:

As a SIEM Engineer at Atech, you will play a key role in designing, implementing, and optimising security monitoring solutions across a diverse range of customer environments. Working primarily with Microsoft Sentinel, Microsoft Defender, and the wider Microsoft Security ecosystem, you will help onboard customers into our Managed SOC service while supporting them in strengthening and maturing their overall security posture.

This role combines technical engineering, detection development, automation, and customer engagement. You will be responsible for building and maintaining high-quality detections, configuring data integrations, tuning alerting, and developing automations that improve both the effectiveness and efficiency of our Security Operations Centre (SOC). You will work closely with SOC Analysts, Security Consultants, Engineers, and customers to deliver innovative security solutions that help organisations identify, investigate, and respond to threats more effectively.

As part of a growing security practice, you will have the opportunity to shape the future of Atech's security services by contributing to detection engineering, automation initiatives, internal tooling, and service improvements. This is an excellent opportunity for someone who is passionate about cyber security, enjoys solving complex technical challenges, and wants to work with cutting-edge Microsoft security technologies.

Key Responsibilities

• Design, implement, and maintain detections, analytics rules, workbooks, watchlists, and automations within Microsoft Sentinel.
• Onboard new customers into Atech's Managed SOC service, including configuring integrations, data connectors, and monitoring capabilities.
• Optimise and tune alerts to improve detection quality, reduce false positives, and enhance analyst efficiency.
• Develop and maintain security monitoring content aligned to customer requirements and emerging threats.
• Design and implement automation solutions using Microsoft Sentinel, Logic Apps, PowerShell, Python, and other supporting technologies.
• Identify opportunities to improve and streamline security operations through automation and process improvement.
• Support incident detection and response activities through the development of tooling, workflows, and detection capabilities.
• Develop and maintain internal security tooling, scripts, and deployment pipelines.
• Work collaboratively with SOC Analysts and Engineers to continuously improve security monitoring and operational effectiveness.
• Contribute to technical designs, peer reviews, and security-focused projects across the wider business.
• Create and maintain clear technical documentation, standards, processes, and procedures.
• Produce technical reports, dashboards, and service summaries for customers and internal stakeholders.
• Assist customers and colleagues in understanding and adopting Microsoft security technologies and best practices.
• Stay current with emerging cyber threats, attack techniques, and advancements within the Microsoft Security ecosystem.
• Participate in training, certifications, and continuous professional development to support your career growth and ensure Atech remains at the forefront of security detection and response.