Deloitte

Penetration Tester

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

Qualifications

  • Experience with Kali Linux and common penetration testing tools (e.g., Burp Suite, Metasploit).
  • Familiarity with OWASP Top 10 vulnerabilities and software security weaknesses.
  • Knowledge of AI models and frameworks; experience with tools like Obsidian is advantageous.
  • Proficient in at least one scripting language and familiar with a programming language.
  • Demonstrated global stakeholder management skills.
  • Strong ability in prioritization and time management across initiatives.
  • Effective written and verbal communication skills.

Responsibilities

  • Execute diverse penetration testing engagements for web apps, APIs, AI systems, networks, mobile apps, and thick clients.
  • Provide consultative guidance on identified security findings clearly and actionably.
  • Enhance and update testing methodologies and processes in documentation.
  • Leverage AI-driven tools and prompt engineering to optimize reconnaissance and testing scripts.
  • Develop and maintain AI-driven agents to automate testing tasks.
  • Validate the accuracy of self-developed AI tools and reduce false positives in vulnerabilities.
  • Evaluate emerging AI-assisted security tools for integration into methodologies.

Benefits

  • Access to a global team with innovative technology solutions.
  • Opportunity to work with AI and cutting-edge security tools.
  • Ongoing professional development and educational support.
  • Exposure to diverse, international projects and collaboration.
  • Potential for limited immigration sponsorship.
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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