DDos Engineer A10 Thunder - 7 Yrs

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About this opportunity:

Ericsson is seeking an experienced DDoS Engineer with deep expertise in A10 Thunder load balancers and DDoS mitigation technologies. The ideal candidate will have a strong understanding of network traffic flows, packet structures, and common protocols, with hands-on experience protecting large-scale infrastructure from volumetric, protocol, and application-layer DDoS attacks. You will play a key role in designing, implementing, and optimizing DDoS defense mechanisms to safeguard Ericsson’s critical network assets.

Key Responsibilities:

• Analyze and understand packet structures and common network protocols to monitor and troubleshoot traffic flows.
• Configure, manage, and optimize A10 Thunder load balancers for efficient traffic distribution and protection.
• Design and implement DDoS mitigation strategies focusing on L3/L4 devices, leveraging BGP or anycast routing techniques.
• Detect, analyze, and mitigate volumetric (e.g., SYN flood, DNS amplification), protocol, and application-layer attacks (e.g., HTTP GET flood).
• Utilize behavioral analytics, threshold-based triggers, and machine learning-based tools to identify and block malicious traffic.
• Recognize and respond to attack patterns originating from known botnets or malware such as Mirai and Mantis.
• Collaborate with network, security, and operations teams to enhance incident response and improve overall network resilience.
• Maintain and update documentation related to DDoS mitigation policies, procedures, and configurations.
• Stay updated with the latest trends and developments in DDoS attack vectors and defense technologies.
  
  

• Bachelor’s degree in Computer Science, Information Technology, or related field; advanced certifications preferred.
• 7 to 14 years of hands-on experience in network security, with a focus on DDoS mitigation.
• Strong understanding of packet structures (TCP/IP, UDP, ICMP), network protocols (BGP, DNS, HTTP/S), and traffic flow analysis.
• Proven experience working with A10 Thunder load balancers or equivalent traffic management devices.
• Deep knowledge of DDoS attack types and mitigation techniques at Layer 3, Layer 4, and application layers.
• Familiarity with routing protocols like BGP and techniques such as anycast for distributed denial-of-service mitigation.
• Experience with behavioral analytics, threshold-based alerting, and machine learning-based detection systems.
• Ability to identify and analyze DDoS patterns linked to botnets and malware such as Mirai and Mantis.
• Strong analytical and problem-solving skills with attention to detail.
• Excellent communication skills and ability to work effectively in cross-functional teams.
  
  

• Certifications such as CCNP Security, A10 Networks Certified Engineer (ACE), or equivalent.
• Experience working in large telecom or enterprise network environments.
• Knowledge of network automation and scripting (Python, Ansible) for deployment and monitoring.