Deloitte

Penetration Tester

Deloitte • $95K — $115K *
Information Technology
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • Experience with Kali Linux or other penetration testing OS platforms; familiar with tools like Burp Professional and Metasploit.
  • Understanding of OWASP Top 10 security weaknesses and vulnerabilities.
  • Familiarity with AI models from providers like Anthropic and OpenAI; experience with tools like Obsidian is a plus.
  • Working knowledge of one scripting language; familiarity with at least one software programming language and framework.
  • Demonstrated experience engaging with diverse stakeholders on a global scale.
  • Ability to manage multiple initiatives with effective prioritization and time management.
  • Strong written and verbal communication skills.

Responsibilities

  • Execute a variety of penetration testing engagements including web applications, APIs, and mobile applications.
  • Provide clear, actionable consultative guidance based on testing findings.
  • Enhance and update methodologies and standards documentation for testing processes.
  • Leverage AI/LLM tools to speed up reconnaissance and refine testing scripts.
  • Build and maintain AI-driven agents for automating testing tasks.
  • Validate and improve accuracy of self-developed AI tools, focusing on minimizing false positives.
  • Evaluate and integrate new AI-assisted security tools into team playbooks.

Benefits

  • Work in a globally recognized technology development environment.
  • Collaborate with cross-disciplinary teams to explore innovative security solutions.
  • Access to emerging technologies and advanced tools in cybersecurity.
  • Professional development opportunities in a complex multinational setting.
  • Work in a culture that encourages creativity and collaboration.
Full Job Description
Work you'll do

This role is responsible for providing penetration testing services through a combination of technology and manual ingenuity as part of the Global cyber services organization for member firms.

Responsibilities of this role include:
  • Executing Penetration testing engagements:
    • Web Application Penetration Testing
    • Web Services / Application Programming Interface (API) Penetration Testing
    • AI/LLM Penetration testing
    • Network Penetration Testing
    • Mobile Application Penetration Testing
    • Thick Client Penetration Testing
  • Providing consultative guidance to customers on findings identified in a clear and actionable fashion, both in writing and verbally
  • Enhancing and updating testing methodologies, processes, and standards documentation
  • Leveraging AI and LLM-based tools and prompt engineering, using both established platforms and emerging frameworks, to accelerate reconnaissance and generate or refine testing scripts
  • Building, customizing, and maintaining AI-driven agents to automate recurring testing tasks
  • Continuously validating the accuracy and reliability of self-developed AI tools, actively working to reduce hallucinations and false positives in vulnerability identification
  • Evaluating and integrating emerging AI-assisted offensive security tooling into team methodology and playbooks
  • Proficient at analyzing and understanding complex architecture designs.
  • Ability to effectively communicate the services and capabilities our group can facilitate to our clients.
Professionals currently in a Deloitte Global role may be considered for this position, regardless of their US location.

The team

Deloitte Technology works at the forefront of technology development and processes to support and protect Deloitte around the world. In this truly global environment, we operate not in "what is" but rather "what can be" to help Deloitte deliver and connect with its clients, its communities, and one another in ways not previously conceived.

Qualifications

Required:
  • Experienced with Kali Linux or other dedicated Penetration Testing OS Platform. With knowledge of common testing tools like Burp Professional, AMASS, Metasploit, Postman, Swagger, NMAP, Qualys, SQL Map, and others
  • Familiarity with OWASP Top 10 software security weaknesses and vulnerabilities
  • Familiarity with various AI models and frameworks from providers such as Anthropic and OpenAI, and experience configuring tools like Obsidian and Ollama is a plus for supporting other workflows.
  • Working knowledge of one scripting language and familiarity with at least one software programming language and framework
  • Demonstrated experience working with diverse stakeholders, preferably on a global multi-national basis
  • Ability to manage concurrent initiatives and use effective judgment in prioritization and time management
  • Strong written and verbal communication skills
  • Must be a US Citizen
Preferred:
  • Certified Ethical Hacker (CEH) Certification
  • Offensive Certified Security Professional (OSCP) Certification
  • Any GIAC Certification (GSEC, GWAB, GPEN, GMOB, GCPN)
  • OWASP Application Security Top 10
  • OWASP API Security Top 10
  • OWASP Thick Client Top 10
  • OWASP LLM Top 10
  • MITRE ATT&CK Framework
  • Cloud Service testing
  • Reverse Engineering
  • Static Application Software Testing (SAST)
  • Dynamic Application Testing (DAST)
  • Experience of Agentic development and its application to support penetration testing
  • Limited immigration sponsorship may be available.

    Requisition code: 368417

    Job ID 368417

About Deloitte

Deloitte is a multinational professional services network that provides audit, tax, consulting, enterprise risk and financial advisory services. The company was founded in London in 1845 and has since grown to become one of the largest professional services firms in the world. Deloitte has over 330,000 employees in more than 150 countries and territories. The company's mission is to help clients achieve their goals and make an impact that matters in their businesses and communities.
Learn more about Deloitte
Size
330,000 employees
Industry
Founded
1999

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