Security Developer/Researcher

2 days ago

Bengaluru, Karnataka, India Zyoin Group Full time ₹ 15,00,000 - ₹ 25,00,000 per year

Location: Bengaluru

Experience: 4+ years

About the Role

We are looking for an experienced
Detection Engineer
to join our MDR (Managed Detection & Response) team. In this role, you will design, develop, and optimize high-fidelity security detections across network, endpoint, and cloud environments. You'll bring deep expertise in networking, protocols, and threat detection to help solve complex security challenges and improve threat visibility for our customers.

Key Responsibilities

  • Design, develop, tune, and optimize detections with a strong focus on:
  • NDR / IDS / IPS detections and signatures
  • Anomaly-based and behavioural-based detections
  • Research emerging network-based threat vectors and translate them into effective security detections
  • Perform deep analysis of network traffic and protocols including
    TCP/IP, DNS, HTTP
    , and related protocol analysers
  • Write, review, and optimize
    Suricata / Snort rules
  • Leverage
    MITRE ATT&CK
    ,
    PCAP analysis
    , and
    threat intelligence feeds
    to enhance detection coverage
  • Collaborate closely with MDR analysts and engineering teams to solve complex detection and security challenges
  • Contribute to continuous improvement of detection quality, coverage, and performance

Required Skills & Experience

  • 4+ years of hands-on detection authoring experience
    , primarily in network security
  • Strong understanding of networking fundamentals and protocols (TCP/IP, DNS, HTTP, etc.)
  • In-depth knowledge of:
  • IDS / IPS / NDR technologies
  • Protocol analysis and network threat detection
  • Network-related security domains such as
    LDAP, NTLM
    , and similar protocols
  • Proven ability to research threats and develop detections for network-based attack techniques
  • Experience using
    MITRE ATT&CK
    ,
    PCAPs
    , and
    threat intelligence feeds
  • Working knowledge of third-party firewalls, IDS/IPS, and network edge devices (PAN, Cisco, Fortinet, etc.) including their capabilities and common vulnerabilities.

Development & Engineering Experience

Experience in
at least two
of the following languages or practices:

  • Programming languages:
    Python, Go, Java, or C/C++
  • Test-Driven Development (TDD)
  • Strong understanding of
    DevOps tools and methodologies
  • Secure development best practices
  • Cloud development experience in
    AWS, Azure, or GCP
    , including:
  • Kubernetes / Containers
  • IaaS and key PaaS services
  • Agile methodologies (
    Scrum / Kanban
    )

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