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# Pen Tester

- **Company:** Siemens Plc
- **Location:** United Kingdom
- **Experience:** Expert
- **Salary:** £55,116
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), .NET Framework, Microsoft Windows, Application Frameworks, Software System Penetration Testing, Software Debugging, Linux, Open Web Application Security, Reverse Engineering, WinDBg, Information Technology, Metasploit, IDA Pro, Nessus
- **Published:** October 24, 2026
- **Apply:** https://www.adzuna.co.uk/jobs/details/5210481212

## About the Role

* Education qualification - MCA / B. Tech /B.E. Computer Science or other IT related degree
 * Has at least 5 years of experience in pen testing
 * Extensive experience in various pen test tools such as Kali, Parrot, Burp, Metasploit, Nessus.
 * Proficiency in creating exploit and pen testing scripts
 * Experience in various debugging/reverse engineering/deobfuscation tools such as IDA Pro, WinDbg, metasm, miasm, VxStripper etc.
 * Strong knowledge of threat modeling and analysis frameworks such as CWE, MITRE ATT&ACK framework, Mitre CAPEC library, OWASP Top10, OWASP ASVS etc.
 * Good knowledge of low level interfaces of Linux and Windows platform
 * Good knowledge of hardware architecture such as x86, x64 and ARM
 * Good knowledge of reverse engineering Application frameworks such as .NET and Java
 * excellent spoken and written communication skills to explain your methods to a technical and non-technical audience
 * attention to detail, to be able to plan and execute tests while considering client requirements
 * the ability to think creatively and strategically to penetrate security systems
 * good time management and organizational skills to meet client deadlines
 * ethical integrity to be trusted with a high level of confidential information
 * the ability to think laterally and 'outside the box'
 * teamwork skills, to support colleagues and share techniques
 * exceptional analytical and problem-solving skills and the persistence to apply different techniques to get the job done
 * Good to have the certification in:
 * CREST Registered Penetration Tester (CRT)
 * Offensive Security Certified Professional (OSCP)
 * Certified Ethical Hacker (CEH) Certification
 * GIAC Certified Penetration Tester (GPEN)

## Description

We're looking for forward-thinking, ambitious game-changers like you to be part of our cybersecurity team for critical infrastructure such as Energy domain. Siemens needs a qualified penetration tester to join our IT/OT team! As our penetration tester, you will be responsible for conducting regular audits and inspections in order to make sure our network and computer systems are secure.

Specific duties

 * Work with clients to determine their technical security requirements as a basis for pen test design concept.
 * Plan and create penetration test specifications, methods, and scripts based on PTES and OSSTMM
 * Carry out remote testing of a client's network or onsite testing of their infrastructure to expose weaknesses in security
 * Simulate security breaches to test a system's relative security
 * Create reports and recommendations from your findings, including the security issues uncovered and level of risk based on metrics such as CVSS scores.
 * Advise on methods to fix or lower security risks to systems
 * Present your findings, risks and conclusions to management and other relevant parties
 * Consider the impact your 'attack' will have on the business and its users
 * Understand how the flaws that you identify could affect a business, or business function, if they're not fixed.