Cyber Security Specialist

Vodafone; Lisboa; Hybrid; EUR 65,000 - 90,000; Full time

Benefits offered by this job

Hybrid work model

Mobile phone and plan

Recognition programs

Well-being program

Digital training platform

Mobility opportunities

Job summary

Vodafone in Portugal is seeking a Cyber Defence Specialist with 5+ years of cyber security experience to strengthen our defence capabilities. You will monitor, investigate and respond to threats, assess vulnerabilities and drive improvements in monitoring and detection across endpoints, networks, cloud environments and applications.

You will collaborate with SOC, IR, network, cloud, and application security teams to reduce cyber risk and translate findings into actionable remediation priorities,

Qualifications

• Minimum 5 years of cyber security experience.
• Hands-on in detecting, investigating and responding to threats.
• Ability to translate technical findings into business risk terms.

Responsibilities

• Detect, investigate and respond to cyber threats across multiple domains.
• Assess vulnerabilities and attack techniques; identify remediation priorities.
• Improve monitoring, detection use cases and correlation logic.
• Collaborate with SOC, Incident Response and network teams to reduce risk.
• Communicate risk and impact to technical and business stakeholders.

Skills

Cyber security

Threat hunting

Security monitoring

Incident response

Analytical mindset

Job description

Join Us

At Vodafone, we’re not just shaping the future of connectivity for our customers – we’re shaping the future for everyone who joins our team. When you work with us, you’re part of a global mission to connect people, solve complex challenges, and create a sustainable and more inclusive world. If you want to grow your career whilst finding the perfect balance between work and life, Vodafone offers the opportunities to help you belong and make a real impact.

Join Us

At Vodafone, we’re not just shaping the future of connectivity for our customers – we’re shaping the future for everyone who joins our team. When you work with us, you’re part of a global mission to connect people, solve complex challenges, and create a sustainable and more inclusive world. If you want to grow your career whilst finding the perfect balance between work and life, Vodafone offers the opportunities to help you belong and make a real impact. At Vodafone, Cyber Security plays a critical role in protecting our networks, systems, customers and critical infrastructure from an evolving cyber threat landscape.

We are looking for an experienced Cyber Defence Specialist with at least 5 years of relevant Cyber Security experience to strengthen our Cyber Defence capability.

You will be responsible for detecting, investigating and responding to cyber threats, assessing emerging vulnerabilities and attack techniques, proactively identifying security weaknesses, and continuously improving our monitoring and defensive capabilities.

This is a hands‑on technical role for someone who combines strong Cyber Security expertise with an investigative mindset and can translate complex technical findings into clear risk, business impact and remediation priorities.

What You’ll Do

• Monitor, analyse and investigate security events, alerts and suspicious activity across endpoints, networks, identities, cloud environments and applications;


• Perform proactive threat hunting, using available security telemetry and threat intelligence to identify potentially malicious activity;


• Develop and continuously improve security monitoring and detection use cases, correlation rules and detection logic;


• Assess emerging cyber threats, vulnerabilities and exploits to determine potential exposure and relevance to Vodafone;


• Support the prioritisation of vulnerabilities based on exploitability, threat intelligence, asset criticality and potential business impact;


• Work with relevant teams to improve security telemetry, visibility and detection coverage;


• Analyse indicators of compromise including suspicious IP addresses and network activity;


• Work closely with SOC, Incident Response, Network, Infrastructure, Cloud, Application Security and Secure by Design teams to investigate and reduce cyber risk;


• Contribute to Red Team, Blue Team and Purple Team activities

Who You Are

• Strong investigative and analytical mindset; Naturally curious and comfortable working with incomplete or ambiguous information;


• Distinguishes between a security alert, a technical vulnerability and a material Cyber Security risk;


• Remains calm and make sound decisions under stress;


• Takes ownership of an investigation from initial detection through analysis, remediation and closure;


• Challenge assumptions and follow technical evidence to reach a conclusion;


• Communicates complex technical issues clearly to both technical teams and senior stakeholders;


• Works effectively across Cyber Security, Technology, Network and Operational teams;


• Proactive in identifying opportunities to improve Vodafone’s defensive capabilities;


• Build strong and effective relationships with Cyber team members, local and global and with other technology and business stakeholders;


• Fluency in the English language

Not a perfect fit?

Worried that you don’t meet all the desired criteria exactly? At Vodafone we are passionate about empowering people and creating a workplace where everyone can thrive, whatever their personal or professional background. If you’re excited about this role but your experience doesn’t align exactly with every part of the job description, we encourage you to still apply as you may be the right candidate for this role or another opportunity.

What’s In It For You

• Hybrid Work Model - Flexible hybrid work model with 8-10 in-office days per month, managed by team leaders;


• Vodafone Products and Services - Employees get a mobile phone, free communication plan, data card, and various discounts on services and products;


• Recognition - Recognition programs for innovative, creative, high-potential employees and exemplary behaviors;


• Health and Well-being - Well-being Program offers nutrition and psychological consultations, webinars, workshops, and discounts on various services and products;


• Learning - Access to Communities of Practice and a customizable digital training platform with high-quality content (namely Harvard Business Publishing, Skillsoft and Speexx);


• Local and International Mobility - Internal recruitment with local and international rotation opportunities across departments and roles

Who We Are

We are a leading international Telco, serving millions of customers. At Vodafone, we believe that connectivity is a force for good. If we use it for the things that really matter, it can improve people’s lives and the world around us. Through our technology we empower people, connecting everyone regardless of who they are or where they live and we protect the planet, whilst helping our customers do the same. Belonging at Vodafone isn’t a concept; it’s lived, breathed, and cultivated through everything we do. You’ll be part of a global and diverse community, with many different minds, abilities, backgrounds and cultures. ;We’re committed to increase diversity, ensure equal representation, and make Vodafone a place everyone feels safe, valued and included.