Senior Consultant, Mobile Application Security

Coalfire

Senior Consultant assessing security of various client applications. Leading engagements and providing expertise in application security and best practices.

Posted 6/23/2026full-timeRemote • 🇬🇧 United KingdomSenior💰 £65,000 - £134,000 per yearWebsite

Tech Stack

Tools & technologies

Cloud

About the role

Key responsibilities & impact

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 perspective
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.

Requirements

What you’ll need

Application penetration testing and assessment tradecraft and methodologies (including browser-based, API, mobile)
Working knowledge of at least two programming or scripting languages
Strong understanding of security principles and industry best practices.
Minimum of 4 years’ experience in a consulting/professional services role
Minimum of 4 years’ experience in Application Security and/or Software Development
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
Required proficiency in:
Web Application Penetration Testing
Mobile Application Penetration Testing
Strong overall technical skills, with additional strong expertise in at least one of the following preferred:
Thick Application Penetration Testing
Hardware Penetration Testing
Secure Code Review
Container Penetration Testing
Cloud Penetration Testing
Network Active Directory Penetration Testing
AI Penetration Testing

Benefits

Comp & perks

paid parental leave
flexible time off
certification and training reimbursement
digital mental health and wellbeing support membership
comprehensive insurance options

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

application penetration testingAPI testingmobile application testingweb application penetration testingthick application penetration testinghardware penetration testingsecure code reviewcontainer penetration testingcloud penetration testingnetwork active directory penetration testing

Soft Skills

time managementverbal communicationwritten communicationreport writingconsulting skillscollaborationprofessionalismtask managementcustomer satisfactionproject management