Telefónica Tech (EN)
Security Engineer
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Security Engineer
Location: Manchester, Flexible Working Company: Telefónica Tech (part of the Telefónica Group)
About Telefónica Tech
Telefónica Tech is a leading NextGen Tech solutions provider with:
- Over 6,000 exceptionally skilled employees
- Over +60 nationalities represented
- Operations in over 175 countries serving over 5.5 million customers daily
- Global strategic hubs: Spain, Brazil, UK, Germany
The Telefónica Tech UK&I hub specialises in developing integrated technology solutions to drive digital transformation through:
- Cloud
- Data & AI
- Enterprise Applications
- Digital Workplace
- Cyber Security & Networking
We offer a broad portfolio of Managed Security Services, advisory and professional services, and UK-based 24x7 SOC operations across both enterprise and public sectors. Our skilled team combines expertise, excellence, and global scale, underpinned by the advanced capabilities of Telefónica Tech Spain.
Our guiding values include Open, Bold, Trusted.
Partnered with market leaders such as Microsoft, HPE, Palo Alto, CrowdStrike, Fortinet, and AWS, we deliver cutting-edge cybersecurity solutions.
About the Role
We’re seeking a detail-oriented and analytical Security Engineer to safeguard our organisation’s critical infrastructure, data, and systems. This role involves:
- Designing, deploying, and maintaining security infrastructure (e.g., firewalls, IDS/IPS, SIEM platforms)
- Conducting vulnerability assessments and penetration testing to identify system weaknesses
- Analysing security logs and investigating incidents/threats proactively
- Developing security policies, procedures, and hardening standards for compliance
- Responding to security incidents with root cause analysis, containment, and remediation
- Performing risk assessments and recommending mitigation measures
- Collaborating cross-functionally with IT and development teams
- Monitoring emerging security threats and improving security posture
- Documenting configurations, incidents, and resolutions in detail
- Supporting compliance initiatives (ISO 27001, NIST, PCI-DSS, etc.)
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Ideal candidates will exhibit strong technical expertise, problem-solving ability, and commitment to continuous learning in cybersecurity.
Key Responsibilities
Design & Implementation
- Design, deploy, and maintain:
- Firewalls
- Intrusion detection/prevention systems (IDS/IPS)
- SIEM platforms
- Ensure alignment with organisational and regulatory standards
Vulnerability Management
- Conduct penetration testing and vulnerability assessments
- Identify and remediate systemic weaknesses
Incident Response & Forensi
- Investigate security logs and alerts
- Respond to incidents with technical precision
Policy & Compliance
- Develop security policies, procedures, and hardening standards
- Support compliance initiatives (ISO 27001, NIST, PCI-DSS)
Strategic Improvement
- Evaluate emerging threats and recommend technological improvements
- Integrate security best practices into IT and development workflows
Analytical & Documentation
- Document security configurations and incidents systematically
- Maintain comprehensive security records
Qualifications
Required
- Proven experience in network security, system security, or information security
- Strong knowledge of:
- Security protocols
- Architectures and best practices
- Hands-on experience with:
- Firewalls
- IDS/IPS
- SIEM platforms
- Vulnerability scanners
- Proficiency in:
- Analysing security logs and network traffic
- Operating systems (Windows, Linux)
- Network fundamentals
- Expertise in vulnerability assessment and penetration testing
- Familiarity with security compliance frameworks (ISO 27001, NIST, PCI-DSS)
- Analytical skills with meticulous attention to detail
- Strong organisational and documentation capabilities
- Ability to manage multiple priorities under pressure
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Preferred
- Security certifications: CISSP, CEH, Security+, GIAC
- Experience with cloud security platforms and technologies
- Knowledge of scripting or programming languages: Python, Bash, PowerShell
- Familiarity with security automation/orchestration tools
- Incident response and digital forensics experience
- Understanding of secure coding practices and application security
- Experience in threat intelligence and APT analysis
About Inclusion at Telefónica Tech
Inclusion is central to our values, empowering everyone to be their authentic selves. We celebrate diversity and belief it drives innovation and strength.
Commitments
- Welcome applicants from all backgrounds and identities, regardless of:
- Age
- Disability
- Gender reassignment
- Marital or civil partnership status
- Pregnancy or maternity
- Race
- Religion or belief
- Sex
- Sexual orientation
Equity & Accessible Hiring
We actively promote equity through:
- Employee Resource Groups (ERGs):
- TogetHer (Women's network)
- Telefónica Tech Pride
- Neurodiversity
- ELEVATE (African and Caribbean heritage network)
- Sustainability
- Accessible, inclusive hiring practices
Note: We’re open to applications from candidates who might not match the role 100% but feel they can contribute effectively. Please get in touch if you’re interested.
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