Security Researcher

Calix is hiring Security Researcher to join their Threat Intelligence team in Bangalore. The successful candidates will lead efforts in identifying, analyzing, and mitigating network threats. Develop and implement advanced threat detection and prevention strategies. Additionally, they will enhance threat detection capabilities through various research activities.

Key Responsibilities:

Write, test, and optimize IPS signatures using the company's proprietary signature language and detection engine to identify network-based intrusions and malicious activities.

Learn and master the proprietary signature syntax, functions, and capabilities to develop effective detection rules across various protocols and attack vectors.

Analyze network traffic patterns and packet captures to create custom signatures tailored to the proprietary IPS platform's unique detection capabilities.

Collaborate with engineering teams to understand platform-specific limitations and optimize signature performance within the proprietary engine environment.

Support and contribute to internal automation processes designed to streamline threat detection activities and signature deployment workflows.

Work closely with senior researchers and team leads to learn advanced detection methodologies and complex signature development techniques.

Capture, analyze, and process indicators of compromise from diverse third-party threat intelligence sources and internal security tools.

Monitor security advisories and vulnerability disclosures to identify new detection opportunities within the proprietary platform framework.

Document research findings and contribute to knowledge sharing initiatives that benefit the broader security research team.

Gain hands-on experience with complex detection capabilities by shadowing senior team members during high-priority investigations and research projects.

Develop expertise in the proprietary platform through guided learning sessions and practical application under senior supervision.

Qualifications:

Bachelors/Masters degree in Computer Science, Electrical Engineering, Cyber Security or a related field.

1-3 years of experience in cybersecurity, network security, or threat detection roles.

Understanding of core network concepts including TCP/IP, protocols, routing, and traffic analysis.

Familiarity with network security tools, IDS/IPS, and malware prevention/monitoring solutions.

Working experience on signature writing and threat detection technologies.

Working Knowledge of both Windows and Linux based operating systems.

Basic scripting capabilities in Python or similar languages for automation and data processing tasks.

Must thrive within a team environment as well as on an individual basis.

Natural curiosity and willingness to learn in a fast-paced, ever-changing threat landscape.

A passion for cybersecurity, continuous improvement, and staying current on threat trend.