Mobile Application Penetration Testing Cybersecurity Jobs

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Penetration Tester

Deloitte Nashville, TN

Nashville, TN

Today

Full time Ai Security Api Penetration Testing Application Security

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Job Description

Deloitte’s Global cyber services team is seeking a Penetration Tester to deliver practical security testing across a wide range of modern application and infrastructure surfaces. In this onsite role in Nashville, TN, you will execute penetration testing engagements and support customers with clear, actionable guidance on findings, while helping evolve testing methods through AI/LLM-enabled workflows.

Penetration testing engagements

Execute penetration testing engagements across web applications
Perform web services / API penetration testing
Conduct AI/LLM penetration testing
Carry out network penetration testing
Test mobile applications
Evaluate thick client applications through penetration testing

Consulting and methodology

Provide consultative guidance to customers on identified findings, delivered in writing and verbally in a clear and actionable format
Enhance and update testing methodologies, processes, and standards documentation
Analyze and understand complex architecture designs
Communicate the services and capabilities the group can facilitate for clients
Proactively evaluate and integrate emerging AI-assisted offensive security tooling into team methodology and playbooks

AI/LLM-assisted offensive security

Leverage AI and LLM-based tools and prompt engineering to accelerate reconnaissance and generate or refine testing scripts, using established platforms and emerging frameworks
Build, customize, and maintain AI-driven agents to automate recurring testing tasks
Continuously validate the accuracy and reliability of self-developed AI tools, working to reduce hallucinations and false positives in vulnerability identification

Required skills and experience

Experienced with Kali Linux or other dedicated penetration testing OS platforms
Knowledge of common testing tools, including Burp Professional, AMASS, Metasploit, Postman, Swagger, NMAP, Qualys, SQL Map, and others
Familiarity with OWASP Top 10 software security weaknesses and vulnerabilities
Familiarity with AI models and frameworks from providers such as Anthropic and OpenAI, and experience configuring tools like Obsidian and Ollama is a plus
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 judgment in prioritization and time management
Strong written and verbal communication skills
Must be a US Citizen

Preferred qualifications

Certified Ethical Hacker (CEH)
Offensive Certified Security Professional (OSCP)
Any GIAC certification (GSEC, GWAB, GPEN, GMOB, GCPN)
OWASP Application Security Top 10, OWASP API Security Top 10, OWASP Thick Client Top 10, and OWASP LLM Top 10
MITRE ATT&CK Framework
Cloud service testing
Reverse Engineering
Static Application Software Testing (SAST) and Dynamic Application Testing (DAST)
Experience with agentic development and applying it to support penetration testing

Technologies

Kali Linux
Burp Professional
AMASS
Metasploit
Postman
Swagger
NMAP
Qualys
SQL Map
OWASP Top 10
Anthropic
OpenAI
Obsidian
Ollama

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