Penetration Tester

Claranet; Greater London; On-site; GBP 55,000 - 95,000; Full time

Job summary

Claranet is seeking a Penetration Tester to lead and execute web and mobile application and infrastructure testing engagements. You will collaborate with clients to deliver bespoke consultancy, contribute to whitepapers and advisories, and develop webinar content while pursuing CREST qualifications.

You should be able to report findings clearly, work under deadlines, and travel for onsite engagements as required.

Qualifications

• Experience in web and mobile app testing
• Experience with infrastructure testing engagements
• Ability to write technical reports and present findings
• Familiarity with CREST certifications or pursuing CPSA/CRT/CCT
• Proactive, client-facing consulting mindset
• Willingness to travel for onsite work

Responsibilities

• Undertaking web and mobile application testing and infrastructure testing engagements
• Using opportunities to improve skills across testing areas
• Providing bespoke consultancy and expertise to key clients
• Collaborating with other Claranet units on large client projects
• Assisting with pre/post sales activities as required
• Communicating clearly with clients and colleagues
• Contributing to whitepapers and advisories
• Delivering webinar content
• Developing R&D aligned with business direction
• Shadowing and developing in security testing areas

Skills

Penetration testing

Web testing

Mobile testing

Infrastructure testing

C/C++/C#

Java

Python

Ruby

Perl

CREST CPSA/CRT/CCT

Job description

As a Penetration Tester at Claranet, you will able to deliver you own web application tests and through training and partnering, you will be involved in a full range of testing work from mobile app and infrastructure testing to social engineering and Red Team exercises.

Key Responsibilities:

• Undertaking web and mobile application testing and infrastructure testing engagements


• Using the opportunities provided by the business to improve skills and capabilities into all areas of testing


• Working with key clients providing bespoke consultancy, analysis and expertise


• Collaborating with other Claranet Business Units on large client digital transformation projects


• Assisting with pre/post sales activities as required


• Encouraging a positive, proactive, collaborative and solution-oriented approach among colleagues


• Communicating within Claranet and with clients, both orally and in writing


• Contribute to the writing and publishing of whitepapers and advisories


• Developing and delivering webinar content


• Delivering targeted research and development in line with direction of the business


• If not achieved already, working towards CREST qualifications; CPSA, CRT and CCT


• Have a good understanding of web & mobile application and infrastructure testing and methodologies


• Able to manually and proficiently exploit web application and network infrastructure vulnerabilities


• Have a logical and time-conscious approach to report writing


• Have a working knowledge of common programming languages such as C, C++, C#, Java


• Have experience of at least one scripting language such as Ruby, Python or Perl


• Providing remediation advice


• Producing accurate technical reports


• Working under pressure of deadlines and structuring workload accordingly


• Problem-solving, helping others to understand complex ideas


• Client facing, able to confidently and professionally represent the company


• Must be self-motivated and able to work in an independent manner as well as part of a team


• Excellent written and oral communications skills


• Positive, collaborative and enthusiastic


• Conducting penetration testing work out of normal office hours on occasion


• Willing to travel to deliver onsite work as required


• Appetite to shadow, train and develop to improve capabilities into all areas of security testing

In Addition, The Following Are Highly Desirable:

• Security clearance (or eligibility for clearance)


• CTM or CTL status


• CISSP, CISA, CEH, OSCP or equivalent reputable information security certifications


• Familiarity with testing cloud environments