Network Security Engineer at Trendyol Group

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 Network Security Engineer, you will design, implement, and maintain security solutions that protect our network infrastructure. You will work with technologies such packet brokers, ssl visibility, IPS/IDS, DDoS protection, and WAF, ensuring secure traffic flow and effective threat detection. You will also collaborate with cross-functional teams to enhance our security architecture and automate daily operations. Responsibilities • Designing, managing, and troubleshooting network security technologies. • Analyzing logs on a daily basis to identify false positives and adjust security configurations accordingly. • Collaborating with architecture teams and product managers to recommend best security practices and identify gaps. • Contributing to the continuous improvement of the security posture of the existing network and infrastructure by working with other security and infrastructure teams. • Keeping up to date with industry best practices and emerging technologies. • Researching, developing, and implementing new technologies suitable for the network security infrastructure. • Ensuring that daily operations are streamlined and automated wherever possible. Expected Qualifications • Minimum of 5 years of hands-on experience as a Network Security Engineer. • Experience in operating and tuning network security solutions (DDoS, IPS/IDS, SSL Visibility, WAF, Packet Broker, Secure Web Gateway, etc.). • Experience in designing enterprise-level network security architectures. • Familiarity with the HTTP protocol, attack vectors, and corresponding defense methods. • Familiarity with encryption algorithms, cryptographic protocols, authentication mechanisms, and secure communication practices. • Proficiency in scripting languages (e.g., Python, Bash) for automation and integration purposes. • Excellent communication and interpersonal skills, with the ability to collaborate with cross-functional teams and stakeholders. • Good command of written and spoken English. • Relevant certifications are a plus. 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.