Graduate Trainee

3 weeks ago

Bengaluru, Karnataka, India Calix Full time
Job Description

Calix provides the cloud, software platforms, systems and services required for communications service providers to simplify their businesses, excite their subscribers and grow their value.

In this role, you will collaborate with the security engineering and threat intelligence teams to support the development, validation, and research of network intrusion detection capabilities. Your contributions will directly impact the enhancement of threat detection signatures, research of emerging threats, and improvement of internal threat intelligence processes.

Responsibilities and Duties:

- Collaborate with threat researchers and security engineers to analyze network-based attacks and generate detection logic.
- Perform packet-level analysis using PCAPs and tools like Wireshark or Zeek.
- Assist in developing and testing detection signatures for IPS/NIDS systems.
- Participate in the development of internal tools to improve research workflows and automation in Python.
- Conduct open-source intelligence (OSINT) gathering for emerging threats, indicators of compromise (IoCs), and TTPs.
- Support creation of technical documentation, threat reports, and playbooks.
- Engage in technical discussions during all phases of the threat research and signature development lifecycle.
- Assist in building simulated attack scenarios to validate detection capabilities.

Qualifications:

- Graduated or pursuing final year of Bachelor&aposs or Master&aposs degree (2024/2025) in Computer Science, Information Technology, Networking, or Cyber Security.
- Strong understanding of Computer Networking, TCP/IP Protocol Stack, OSI Model, and Intrusion Detection Systems (IDS).
- Familiarity with Cyber Threat Intelligence, MITRE ATT&CK, and common malware delivery methods.
- Programming knowledge, preferably in Python; ability to automate analysis or write small utilities.
- Comfortable working with both Linux and Windows operating systems.
- Familiar with tools like Wireshark, Suricata, Snort, tcpdump, etc., is a plus.
- Experience or coursework in Network Security, Packet Analysis, or Cybersecurity is desirable.
- Strong communication skills, keen attention to detail, and excellent research aptitude.

Location:

India (Flexible hybrid work model - work from Bangalore office for 20 days in a quarter)

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