Assistant Manager – Network Security Testing | Cybersecurity Jobs at Deloitte | Mumbai

September 18, 2025

Job Description

Summary

Deloitte Touche Tohmatsu India LLP is hiring an Assistant Manager – Cybersecurity (Network Security Testing) in Mumbai (I-Think Campus). This role is ideal for cybersecurity professionals with experience in VAPT, penetration testing, cloud security, network security, and vulnerability management.

As part of Deloitte’s Cyber Detect & Respond (D&R) team, you will work on cutting-edge security testing engagements, perform vulnerability assessments and penetration testing (VAPT), and help clients strengthen their cyber resilience. This opportunity allows you to join one of the world’s leading consulting firms and advance your career in ethical hacking, penetration testing, and cybersecurity consulting.


Job Details at a Glance

Job TitleAssistant Manager – Network Security Testing
CompanyDeloitte Touche Tohmatsu India LLP
LocationMumbai (I-Think Campus)
EntityCyber Risk – Detect & Respond (D&R)
DesignationAssistant Manager (AM)
Experience Required2+ years in Cybersecurity (VAPT, Pentesting, Config Reviews)
EducationB.Tech / M.Tech (preferred in CS, IT, or related fields)
CertificationsCEH, OSCP, LPT (mandatory); GPEN, CREST (preferred)
ToolsKali Linux, Nessus, Qualys, Metasploit, Acunetix, AppScan, Fortify, Nmap

Key Responsibilities

As an Assistant Manager – Cybersecurity, you will:

  • Perform Vulnerability Assessment & Penetration Testing (VAPT) for:
    • Web applications
    • Mobile apps (iOS & Android)
    • APIs
    • Infrastructure & networks
    • Cloud configuration reviews
  • Conduct source code reviews and config reviews (Windows, Linux, UNIX, Solaris, Databases).
  • Work with firewalls, IDS/IPS, routers, switches, and network architectures.
  • Utilize advanced vulnerability management tools such as Nessus, Nexpose, Qualys Guard, and Fortify.
  • Script in Python, Shell, or PERL for automation and testing.
  • Apply knowledge of key security technologies (IPSec, SSL, SSH, VPN, SMTP, FTP, WAN, FDDI, ISDN).
  • Prepare high-quality reports, risk assessments, and client presentations.

Required Skills & Qualifications

Must Have:

  • B.Tech / M.Tech in Computer Science, IT, or related field.
  • 2+ years of hands-on experience in cybersecurity, penetration testing, and VAPT.
  • Security certifications: CEH, LPT, OSCP (mandatory).
  • Strong understanding of TCP/IP, firewalls, IDS/IPS, and security architecture.
  • Experience with web app security, mobile app pentesting, and infrastructure testing.
  • Familiarity with scripting languages (Python, Shell, PERL).

Good to Have:

  • Advanced certifications such as GPEN, CREST.
  • Exposure to cloud security, API testing, and vulnerability management frameworks.
  • Experience with Power BI, automation tools, and security dashboards.

Why Join Deloitte Cybersecurity?

  • Global Exposure: Work with leading clients on complex cyber risk challenges.
  • Cutting-Edge Tools: Hands-on access to industry-leading testing and security tools.
  • Career Development: Certifications, mentorship, and access to Deloitte University.
  • Inclusive Culture: Commitment to diversity, equity, and inclusion (DEI).
  • Purpose-Driven Work: Protect clients, society, and communities from cyber threats.

Apply Now

Take the next step in your cybersecurity career at Deloitte.

👉 Apply directly on Deloitte Careers

Be part of a world-class cybersecurity team and shape the future of network security testing and ethical hacking.