Location: Bangalore, India (Flexible hybrid work model – in-office 20 days per quarter)
Job Type: Full-Time
Job Requisition ID: R-10890
Posted: 5 Days Ago
About Calix
Calix provides cloud, software platforms, systems, and services that enable communications service providers to simplify operations, delight subscribers, and grow value.
Our mission is to enable CSPs of all sizes to Simplify. Innovate. Grow. We focus on broadband platforms and managed services, connecting communities with advanced digital experiences.
Note: All official Calix communications come from @calix.com email addresses. Verify authenticity before sharing personal information.
For more information, visit www.calix.com.
Role Overview
As a Graduate Trainee in Security Engineering, you will collaborate with security engineers and threat intelligence teams to support the development, validation, and research of network intrusion detection capabilities.
Your work will directly contribute to:
- Enhancing threat detection signatures
- Researching emerging threats
- Improving internal threat intelligence processes
This role offers hands-on experience in cybersecurity research, network defense, and threat intelligence operations.
Key Responsibilities
- Collaborate with threat researchers and engineers to analyze network-based attacks and develop detection logic.
- Perform packet-level analysis using tools like Wireshark or Zeek.
- Assist in developing and testing detection signatures for IPS/NIDS systems.
- Contribute to internal tool development for research workflow automation in Python.
- Conduct open-source intelligence (OSINT) gathering on emerging threats, IoCs, and TTPs.
- Support the creation of technical documentation, threat reports, and playbooks.
- Participate in technical discussions throughout the threat research and signature development lifecycle.
- Assist in simulated attack scenario creation to validate detection capabilities.
Qualifications
- Graduated or final-year student (2024/2025) with a Bachelor’s or Master’s degree in Computer Science, Information Technology, Networking, or Cybersecurity.
- 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 Python, with ability to automate analysis or write small utilities.
- Comfortable working with both Linux and Windows operating systems.
- Experience with tools like Wireshark, Suricata, Snort, tcpdump is a plus.
- Relevant coursework or experience in Network Security, Packet Analysis, or Cybersecurity is desirable.
- Strong communication skills, attention to detail, and research aptitude.
Why Join Calix
- Work on cutting-edge security research impacting real-world networks.
- Gain hands-on experience with network intrusion detection systems and threat intelligence.
- Be part of a mission-driven company connecting communities with advanced broadband technology.
- Flexible hybrid work model supporting both remote and in-office collaboration.
- Opportunities for career growth in cybersecurity and threat intelligence.
Application & Contact Information
If you require assistance due to a disability during the application process, please:
- Email: calix.interview@calix.com
- Call: +1 (408) 514-3000
Calix is a Drug-Free Workplace and committed to inclusive hiring.
How to Apply
Interested candidates can apply via the official Calix careers portal or university recruitment channels. Ensure your resume highlights relevant cybersecurity or network security experience, programming skills, and academic achievements.
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