Cyber Defence Center Engineer

About the Team

At Trendyol Tech, our mission is to create a positive impact in our ecosystem by enabling commerce through technology.

We solve complex problems with data, creativity, and agility — always driven by real outcomes. With a culture built on learning, collaboration, and ownership, we grow together while building what’s next.

About the Role

As a Security Professional, you will act as a key defender, bridging the gap between security monitoring and effective response. You'll leverage deep expertise in threat hunting, malware analysis, and digital forensics to proactively uncover sophisticated threats and strengthen our security posture. By automating workflows with scripting languages like Python and optimizing our SIEM and EDR platforms, you will enhance our operational efficiency and add value to every stage of our defense lifecycle, all while ensuring our practices meet critical compliance standards.

Responsibilities

• Conduct deep-dive analysis of complex security incidents, perform root cause investigations, and coordinate appropriate response actions.
• Proactively perform threat hunting activities to identify advanced threat actors, leveraging frameworks like MITRE ATT&CK to analyze attacker behaviors.
• Analyze malware and malicious activity on EDR, SIEM, and network traffic data using both static and dynamic analysis techniques.
• Apply basic reverse engineering methods when needed to support the analysis of suspicious files and malware samples.
• Perform forensic investigations by analyzing logs, memory dumps, registries, and event data to uncover indicators of compromise.
• Automate incident response workflows and develop playbooks using SOAR platforms to improve efficiency and accuracy.
• Utilize, analyze, and leverage diverse cyber threat intelligence sources—including open-source feeds, commercial platforms, and internal telemetry—to proactively monitor emerging threats, assess attacker tactics, techniques, and procedures (TTPs), and continuously update and enhance defensive measures and response strategies.
• Operate and optimize security tools including SIEM (e.g., Splunk, Azure Sentinel), EDR (e.g., CrowdStrike, Microsoft Defender), IDS/IPS, and integrate new log sources for enhanced visibility.
• Contribute to incident monitoring and response activities aligned with compliance standards such as KVKK, GDPR, ISO 27001, PCI-DSS, BDDK, and support regulatory audit requirements.
• Produce comprehensive incident reports and ensure thorough documentation of investigations and remediation steps.

Expected Qualifications

• 4+ years of experience in security
• Strong experience in malware analysis, including both static and dynamic techniques.
• Proficiency in reverse engineering tools and techniques.
• Hands-on experience with SIEM platforms, EDR solutions, and network security tools.
• Familiarity with the MITRE ATT&CK framework and threat intelligence services.
• Experience with scripting languages such as Python or PowerShell for automation tasks.
• Excellent analytical and problem-solving skills.
• Strong written and verbal communication skills in English.
• Certifications such as CISSP, GCIH, GCFA, CEH, or Security+ are preferred.

What We Offer

- Hybrid working model with flexibility: a schedule that helps you find the right balance between flexibility and team bonding, including work-from-abroad opportunities and a summer working model.

- Customisable FlexBenefits budget: Adjust your daily meal allowance, choose your health insurance package (and extend it to your spouse or children), and pick from additional benefits like fuel support or Trendyol shopping credits.

- Well-being support: Access to location-based in-house doctors, as well as psychologist and dietitian support, and HPV vaccination provision.

- Personalised training allowance and learning opportunities: Use your annual budget for any training or conference of your choice, explore our Learning Management System (LMS) anytime, and join in-person learning sessions offered throughout the year.

- Responsibility from day one: Take full ownership from the start in a culture where every voice is heard and valued.

- A diverse, international team: Collaborate with global peers across our offices in Berlin, Amsterdam, Dubai, and beyond, in a startup-spirited and collaborative environment.

- Opportunities to grow with the best: Tackle meaningful challenges, develop through hands-on experience, and grow with the support of expert guidance and global mentoring.

- Meaningful connections beyond tasks: Be part of team rituals, events, and social activities that help us stay connected and inspired.

Take the Next Step

If this role excites you, apply today, we look forward to taking the next step with you.

Want to get to know the team better first? Explore our Career Website, LinkedIn, or YouTube to learn more about #LifeatTrendyol and how we work.