Overview
About Calix
Calix is a leading provider of cloud solutions, software platforms, systems, and services for communications service providers. We enable CSPs to simplify operations, engage subscribers, and grow business value. Our mission is to connect communities with exceptional digital experiences.
Position Overview
As a Graduate Trainee, you will work closely with the security engineering and threat intelligence teams to support the development, validation, and research of network intrusion detection capabilities. Your work will contribute to enhancing threat detection signatures, researching emerging threats, and improving internal threat intelligence processes.
Key Responsibilities
- Collaborate with threat researchers and security engineers to analyze network-based attacks and create detection logic.
- Perform packet-level analysis using PCAPs and tools such as Wireshark or Zeek.
- Assist in developing and testing detection signatures for IPS/NIDS systems.
- Participate in building internal tools for research workflow automation using Python.
- Conduct open-source intelligence (OSINT) gathering for emerging threats, IoCs, and TTPs.
- Prepare technical documentation, threat reports, and playbooks.
- Engage in technical discussions during all phases of threat research and signature development.
- Assist in simulating attack scenarios to validate detection capabilities.
Required Qualifications
- Graduated or in final year of Bachelor's or Master's 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 framework, and common malware delivery methods.
- Proficiency in Python programming for automation and utility development.
- Comfortable working with Linux and Windows operating systems.
- Knowledge of tools such as Wireshark, Suricata, Snort, and tcpdump is a plus.
- Coursework or experience in Network Security, Packet Analysis, or Cybersecurity preferred.
- Excellent communication skills, attention to detail, and strong research aptitude.
Work Location
India – Flexible hybrid work model, with work from Bangalore office for 20 days per quarter.
About the Hiring Process
All communication from Calix will come from a '@calix.com' email address. Please verify authenticity before sharing personal or financial information.
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Education Requirements
- Bachelor's or Master's degree in Computer Science, Information Technology, Networking, or Cyber Security (2024/2025 batch)
Eligible Batch Years
Calix
Calix, Inc. is a leading provider of cloud and software platforms, systems, and services that enable broadband service providers (BSPs) to deliver advanced, high-speed internet and smart home solutions to residential, business, and community customers. Founded in 1999 and headquartered in San Jose, California, Calix has grown to become a trusted technology partner for hundreds of BSPs across North America and beyond. The company's mission is to enable service providers of all sizes to simplify their operations, excite their subscribers, and grow their value through innovative broadband solutions.
Calix's offerings span intelligent access EDGE systems, Revenue EDGE subscriber solutions, and cloud-based analytics platforms that help BSPs optimize network performance, enhance customer experiences, and create new revenue streams. With over 1,000 employees, Calix is recognized for its strong market position in the broadband access industry and its role in accelerating the deployment of fiber networks. In recent years, the company has gained attention for supporting rural broadband expansion initiatives and for its consistent innovation in subscriber experience platforms, earning industry awards and recognition for its contributions to the digital transformation of communities.
Company Details
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Websitecalix.com