Cyber Engineer

RTX (Raytheon); Harlow; Hybrid; GBP 60,000 - 85,000; Full time

Job summary

Raytheon UK is seeking a Cyber Engineer to join the Cyber Security team in a hybrid role based in Harlow. You will work with SOC analysts, infrastructure teams, network specialists, and external providers to protect critical systems.

You will design, install, maintain, and improve security technologies, ensuring monitoring, vulnerability management, data loss prevention, and cloud/network security are aligned with business needs.

Qualifications

• Knowledge of cyber security principles and practices.
• Ability to work across security domains and teams.
• Strong communication and problem-solving skills.

Responsibilities

• Administer and optimise cyber security technologies and platforms.
• Coordinate with SOC, Network, Cloud, and Infra teams on security controls.
• Plan and execute upgrades, patches and changes in security infrastructure.
• Produce reports on platform availability, risks, and incidents.
• Support security projects and vendor engagements.

Skills

Cybersecurity

Security architecture

Collaboration

Tools

SIEM

DLP

Endpoint protection

Vulnerability management

Email security

Web security

Job description

Job Title: Cyber Engineer

Position Role Type: Hybrid

Location: Harlow, Essex

Clearance: SC - UK Eyes only

Hours: Fulltime 37 hrs

Raytheon UK

At Raytheon UK, we take immense pride in being a leader in defence and aerospace technology. As an employer, we are dedicated to fuelling innovation, nurturing talent, and fostering a culture of excellence.

Joining our team means being part of an organisation that shapes the future of national security whilst investing in your growth and personal development. We provide a collaborative environment, abundant opportunities for professional development, and a profound sense of purpose in what we do. Together, we are not just advancing technology; we're building a community committed to safeguarding a safer and more connected world.

The Department and Team

Raytheon UK's Digital Technologies (DT) department is responsible for supporting and enabling the wider business in the delivery of its core services, helping Raytheon UK successfully deliver collaboration, operational activities, and business outcomes.

The Cyber Security Team operates within the DT function, providing subject matter expertise, governance, assurance, and technical security services to both the DT function and the wider UK business. The team works to ensure the ongoing security, resilience, and compliance of Raytheon UK's critical systems, infrastructure, and services.

Summary of Role

We are seeking a Cyber Engineer to join our Cyber Security team. This is a varied and hands-on role within our cybersecurity organisation, working closely with SOC analysts, infrastructure teams, network specialists, information assurance personnel, and third‑party service providers to protect the organisation from cyber threats.

The Cyber Engineer will be responsible for the design, implementation, maintenance, and continual improvement of security technologies and cyber defence capabilities across the enterprise. This includes supporting and enhancing security monitoring platforms, vulnerability management solutions, endpoint security controls, data loss prevention technologies, and cloud and network security services.

As a technical security subject matter expert, you will work across multiple technology domains, partnering with Network, Infrastructure, Data Centre, Cloud, and Architecture teams to embed security best practices and ensure that security solutions remain effective, resilient, and aligned with business requirements.

You will be responsible for the administration, configuration, maintenance, and lifecycle management of cyber security technologies, ensuring they remain available, secure, and fit for purpose. The role also includes delivering platform upgrades, supporting security projects, managing technology changes, and collaborating with external vendors and service partners to maintain and enhance cyber security capabilities.

This role provides an excellent opportunity to influence the organisation's cyber strategy while delivering practical engineering solutions that strengthen security across the business.

Main Duties

• Administer, maintain, and enhance cyber security technologies across the enterprise, including SIEM, DLP, vulnerability management, endpoint protection, email security, and web security platforms.
• Respond to requests from Security Operations, Incident Response, and Vulnerability Management teams to optimise and improve security tooling and associated configurations.
• Design, implement, and maintain security controls that support business, regulatory, and operational requirements.
• Work closely with Network, Infrastructure, Cloud, and Data Centre teams to ensure architecture and security controls are deployed effectively and securely.
• Support the development, implementation, and continual improvement of security monitoring, detection, and response capabilities.
• Maintain the operational availability, performance, and security of cyber security platforms.
• Plan, prepare, test, and execute technology upgrades, patches, and configuration changes across cyber security infrastructure.
• Record faults, perform troubleshooting activities, and coordinate repairs or vendor support activities where required.
• Conduct Moves, Adds, Changes, and Deletes (MACD) activities in accordance with approved processes and change management procedures.
• Ensure all security platforms are maintained to the required patching and compliance standards.
• Manage and coordinate maintenance activities through established change control processes.
• Maintain accurate Configuration Items (CIs) and associated records within the CMDB.
• Produce reports on platform availability, capacity, security risks, vulnerabilities, incidents, and continual service improvement activities.
• Support cyber security projects and initiatives, including new technology deployments and capability enhancements.
• Act as a technical subject matter ex