Consultant, Application Security Penetration Tester

🔒 Confidential Employer
Posted 23 April 2026
LOCATION
Remote
TYPE
Full-time
LEVEL
Mid-Senior level
SALARY
£72,810 / year
CATEGORY
Technology
This employer holds a UK Home Office sponsor license — sponsorship for this specific role is at the employer’s discretion

SKILLS

Application penetration testing Web Application Penetration Testing Security principles Programming/scripting languages Consulting Report writing

FULL DESCRIPTION

What You'll Do

Working independently and collaboratively with a team to both lead and support

  • Perform penetration testing on applications with complex technology stacks from both a: Blackbox & Whitebox perspective
  • Dynamically flex your skills when assessing emerging or custom technologies
  • Contextualize vulnerabilities and assess realistic impact to a client accounting for mitigating and aggravating factors
  • Manage priorities and tasks to achieve utilization targets
  • Operate with professionalism both internally and with clients
  • Ensure quality reports and services are delivered efficiently and on time
  • Maintains strong depth of knowledge in the practice area
  • Collaborate with project managers, quality management, sales and other delivery team members to drive customer satisfaction and meet project deliverables
  • Up to 10% travel

What You'll Bring

Application penetration testing and assessment tradecraft and methodologies (including browser-based, API)

  • Strong working knowledge of at least two programming or scripting languages
  • Strong understanding of security principles and industry best practices
  • Minimum of 2 years’ experience in a consulting/professional services role
  • Minimum of 2 years’ experience in Application Security and/or Software Development
  • Proficiency in Web Application Penetration Testing

Strong overall technical skills, with strong expertise in at least one of the following:

  • Mobile Application Penetration Testing
  • Thick Application Penetration Testing
  • Hardware Penetration Testing
  • Secure Code Review
  • Container Penetration Testing
  • Cloud Penetration Testing
  • Network Active Directory Penetration Testing
  • AI Penetration Testing

Strong consulting skills including:

  • Time management, performing adjacent tasks while ensuring on-time delivery, escalating issues as needed
  • Verbal communication, leading client calls for project kickoffs and debrief
  • Written communication & Report writing, for both executive audiences and technical staff
  • High school diploma required

Bonus Points

UK CREST Certification and eligibility to be approved for and maintain UK SC level Clearance

  • Strongly preferred CREST Certifications
  • CREST Practitioner Security Analyst (CPSA)
  • CREST Practitioner Threat Intelligence Analyst (CPTIA)
  • AWAE, OSCP, OSCE, OSEE offensive security certifications
  • Significant development and engineering backgrounds
  • Cloud Service penetration testing tradecraft and methodologies across multiple service providers (e.g. AWS, GCP, etc.).
  • Mobile platform and application penetration testing tradecraft and methodologies across both iOS and Android.
  • Red/Purple Team tradecraft and methodologies
  • Social engineering in all its forms
  • AWS Certified Solutions Architect – Professional, AWS Certified Security, AWS Certified Advanced Networking, AWS Certified SysOps Administrator
  • Network, Database, System administration experience and certifications
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