Security Complex Engineering Specialist

This role will play a vital part in the protection of BT. Responsible for working across engineering teams, threat analysts and key stakeholders you will be responsible for utilising our security engineering capabilities to regularly inspect and improve our threat intelligence and threat hunting capabilities. If you're passionate about cloud security and want to be at the forefront of innovation, this role is for you. This role follows hybrid working and requires 3 days in the office (choice of Birmingham, Manchester or Ipswich) What you'll be doing You'll be part of a holistic security engineering team, implementing BT-wide, multi-system, complex design, holistic use case development and management. This will require close collaboration with teams responsible for specific security capabilities in our federated security engineering approach. Core to this are the following accountabilities:

• Designing, implementing and managing security detection use cases across a range of technologies to ensure timely alerting of security events and incidents to Security Operations staff.
• Responding to specific threats and intelligence to enable insight from security capabilities at the pace of incidents in support of incident technical bridges.
• Continuously improving threat detection capabilities by tuning and optimising existing use cases and retiring use cases no longer providing value.
• Collaborate regularly across Protect BT Group stakeholders and engineering teams to quickly respond to new use cases
• Act as a security use case subject matter expert, responding to requests, working with wider teams, making priority decisions and deciding the best action to regularly advance our threat detection capabilities
• Proactively adapting and maintaining threat intelligence and detection capabilities to ensure we provide the best possible environment to keep BT safe.
• Enhance data enrichment by integrating threat intelligence feeds and contextual information.
• Contribute to security engineering projects, transitions, and transformations.
• Work closely with security operations and associated security incident response systems
• Stay informed about emerging threats and security best practices.
• Drive end to end automation across the eco system of security capabilities to drive efficiency and speed of response to cyber threats.
• Collaboration with commercial security teams where BT consumes our commercial propositions for internal use., Coordinate across multiple teams to work towards a common goal
• Collaborate with a wider range of stakeholders, reporting progress and adapting quickly to feedback
Delivery:
• Responsible for the delivery and in life management of complex use cases
• Coordinating rapid responses to changes in the threat landscape
• Working across multiple stakeholders to ingest, parse, index and consume data feeds required to evolve our threat hunting ability
• Drive automation of data ingestion, transformation and loading tasks
Design:
• Responsible for designing complex security use case detection logic
• Documenting design decisions and communicating with engineering teams
• Proactively understanding how we can get more value from SIEM and other tooling to continually mature our capabilities
• Design, develop, and maintain data pipelines using Logstash, part of the Elastic Stack.
Data Cleaning and Enrichment with Elasticsearch:
• Utilize Elastics for efficient data storage and retrieval.
• Implement data validation, enrichment, and indexing.
• Collaborate with data analysts to create meaningful search experiences.
Database Architecture and Scaling with Elastic:
• Optimize data storage and retrieval mechanisms within Elastic clusters.
• Design and Implement sharding, replication, and index management strategies.
Security and Compliance with Elastic Security:
• Set up access controls, authentication, and encryption using Elastic Security features.
• Ensure compliance with data protection regulations.
Performance Tuning with Elastic and Logstash:
• Fine-tune query performance using Elastic indices and mappings.
• Monitor Logstash pipelines and optimize resource utilization.
Kibana Visualization and Monitoring:
• Leverage Kibana for data visualization, dashboards, and real-time monitoring.
• Create custom visualizations to track data quality metrics and system performance.
Kafka integration


• Experience working in the threat intelligence / threat hunting environment
• Knowledge of working on a SIEM/big data/ threat hunting capability
• Experience in cyber security implementation and support
• Knowledge of security best practices, regulatory requirements and standards
• ELK stack awareness
• Knowledge of the MITRE ATT&CK framework
PREFERRED
• Experience supporting complex cyber security or IT projects.
• Actively worked on a SIEM solution and experience of use case detection/creation
• Detailed knowledge of Elastic architecture
  
  BT is part of BT Group, along with EE, Openreach, and Plusnet.
Millions of people rely on us every day to help them live their lives, power their businesses, and keep their public services running. We connect friends to family, clients to colleagues, people to possibilities. We keep the wheels of business spinning, and the emergency services responding. We value diversity and celebrate difference. 'We embed diversity and inclusion into everything that we do. It's fundamental to our purpose: we connect for good.' We all stick to the same values: Personal, Simple, and Brilliant. From day one, you'll get stuck in to tough challenges, pitch in with ideas, make things happen. But you won't be alone: we'll be there with help and support, learning and development. This is your chance to make a real difference to the world: to be part of the digital transformation of countless lives and businesses. Grab it.

At BT, we entertain, educate, and empower millions of people every single day. We're a brand built on connecting people - whether that's friends, family, businesses, or communities. Working here, you'll receive an attractive salary and a range of competitive benefits, but - more than that - you'll be joining an ambitious organisation with a culture of togetherness, collaboration, and inclusivity, that takes a genuine and proactive interest in your progress and development.
• Competitive salary
• 10% on target bonus
• BT Pension scheme, minimum 5% Employee contribution, BT contribution 10%
• 25 days annual leave (not including bank holidays), increasing with service
• Huge range of flexible benefits including cycle to work, healthcare, season ticket loan
• World-class training and development opportunities
• Option to join BT Shares Saving schemes.
• Discounted broadband, mobile and TV packages
• Access to 100's of retail discounts including the BT shop