Penetration Tester

Whether you’re just starting out or bringing years of experience, at Yettel we believe the right role is about growth, impact, and being part of something meaningful.

The impact you’ll make:

As an Offensive Security Expert within our Information Security team, you’ll play a key role in strengthening Yettel’s security posture by identifying vulnerabilities, simulating real-world attack scenarios, and working closely with infrastructure, development, and operational teams to improve the security and resilience of systems, applications, networks, and cloud environments.

What you’ll do:

• Perform penetration testing across web/mobile applications, networks, cloud infrastructure, and APIs
• Execute Red Team and Purple Team exercises to test detection and response capabilities
• Conduct vulnerability assessments and support remediation activities
• Develop scripts, tools, and exploits to demonstrate security risks and bypass controls
• Prepare technical reports with findings, risk levels, and remediation recommendations
• Collaborate with IT, development, SOC, and Incident Response teams to improve security posture and detection capabilities
• Research modern attack techniques, vulnerabilities, and offensive security trends
• Deliver technical guidance and secure coding awareness to development teams
• Support continuous improvement of offensive security processes and standards

We expect from you:

• Hands-on experience in penetration testing, Red Teaming, or vulnerability research
• Relevant certifications such as OSCP, OSCE, OSEP, PNPT, or GIAC GPEN/GWAPT are considered an advantage
• Strong knowledge of networking, Windows/Linux systems, Active Directory, and security frameworks such as OWASP and MITRE ATT&CK
• Experience with scripting/programming languages like Python, Bash, PowerShell, or Go
• Ability to work effectively under pressure and across international teams
• Proactive mindset, initiative, and strong collaboration skills

What’s in It for you:

Health and Wellness:

• Additional health insurance, including dental and ophthalmic services
• Annual preventive medical check-ups
• Discounts for health products and services
• Corporate psychologist available at the office
• Massages at the office

Education:

• Covering up to 200 EUR annually for an English language course
• Corporate Online Learning Platform
• Preferential prices for learning centers
• Educational Grants Program (MBA, ACCA, CIMA, CIM, CIPD, etc.)

Mobile Services:

• A tariff plan with unlimited voice, data, and text services and up to 25.56 EUR limit for additional services
• A preferential tariff plan for friends and family
• Mobile devices at preferential prices

Transport:

• Transport monthly allowance
• Preferential prices for a new car
• Book a premium brand company car for your holiday
• Preferential prices for car accessories, parts, and services

Lifestyle:

• Food vouchers
• Attractive terms for bank products
• Preferential prices for various products and services
• Diverse wellbeing activities
• Childbirth allowance
• Birthday day off
• 1-month sabbatical every 5 years
• +4 bonus days if you use all your time off

Sport:

• Preferential prices for sport club cards
• Book a Yettel bike for weekdays or weekends
• Group workouts at the office

Employee Referral Program:

• Bonus for successfully hired referred new employees

A Tip from Us:

AI is great, but this part is all you! We encourage AI at work, but for your application, we’d love to hear your own thoughts, experiences, and motivation.

You don’t need to tick every box! If this role excites you, go for it! We value potential over perfection.

Join Yettel now by sending us your up-to-date CV.

Only shortlisted applicants will be contacted with information about next steps of our selection process.

Applicants are treated with strict confidentiality following the applicable personal data protection legislation.