Senior Mobile Security Developer — Opportunihub
Job

Senior Mobile Security Developer

Waracle · London, England, United Kingdom

At a glance

Type
Job
Organisation
Waracle
Location
London, England, United Kingdom
Work mode
On-site
Deadline
Rolling / not stated
Posted
17 Sep 2026

About this job

<p><span style="color:#121317">Waracle are looking for a </span><strong><span style="color:#121317">Senior Mobile Security&nbsp;Developer</span></strong><span style="color:#121317"> for an exciting new role joining our world-class digital technology consultancy, home to a diverse, smart, curious and ambitious community of specialists in technology-driven transformation.<br></span></p><p style="text-align:justify;min-height: 1.7em;"></p><p style="text-align:justify;"><span style="color:#121317">We work with ambitious clients to help them solve their biggest business and customer challenges. We help our clients to innovate and create intelligent digital products and services. We thrive on complex challenges and deliver business-critical IT transformation projects, moving seamlessly from strategy, design and delivery to operations.</span></p><p style="min-height: 1.7em;"></p><p><span style="color:#121317">This is a Hybrid role, offering the flexibility to balance your professional and personal life, with 2 days a week spent connecting with colleagues in our </span><strong><span style="color:#121317">London office </span></strong><span style="color:#121317">or</span><strong><span style="color:#121317"> </span></strong><span style="color:#121317">on client site.</span></p><h4><strong><span style="color:#000000"><br></span><span style="color:#121317">The Role</span></strong></h4><p style="text-align:justify;"><span style="color:#121317">As a Senior Mobile Security Developer, you will define squad-level technical architecture and technical approach. You are a technical expert who ensures quality, security, and compliance across projects, driving robust and scalable solutions.</span></p><p style="min-height: 1.7em;"></p><p style="text-align:justify;"><span style="color:#121317">This role will be pivotal in building, delivering, and driving the security of our mobile platform, while being an integral part of our full-stack mobile practice, contributing to end-to-end development and security excellence across both front-end and back-end mobile systems.</span></p><p style="min-height: 1.7em;"></p><p><strong><span style="color:#121317">Key aspects of the role include:</span></strong></p><ul><li><p><strong><span style="color:#121317">Design and Delivery of a World-Class Security Framework: </span></strong><span style="color:#121317">Lead the design and delivery of security services, including mobile penetration testing, research, consultancy, and advisory engagements.</span></p></li><li><p><strong><span style="color:#121317">Technical Strategy &amp; Architecture: </span></strong><span style="color:#121317">Define secure technical approaches, identify risks, and develop effective threat models and mitigation strategies.</span></p></li><li><p><strong><span style="color:#121317">Strategic Planning: </span></strong><span style="color:#121317">Translate business objectives into technical strategy and ensure technical roadmaps align with long-term client goals.</span></p></li><li><p><strong><span style="color:#121317">Agile Practices: </span></strong><span style="color:#121317">Expertise in Agile methodologies, with a focus on resolving impediments and driving adoption across teams.</span></p></li><li><p><strong><span style="color:#121317">Client Engagement: </span></strong><span style="color:#121317">Communicate effectively with clients, manage expectations, and provide practical, risk-based security recommendations.</span></p></li><li><p><strong><span style="color:#121317">Continuous Improvement &amp; Collaboration: </span></strong><span style="color:#121317">Drive innovation, adopt emerging security practices, share knowledge, and support team success.</span></p></li></ul> <br> <p><strong><span style="color:#121317">What you'll bring:</span></strong></p><p><span style="color:#121317">We are seeking a highly technical expert with a strong focus on mobile platform security. You should bring:</span></p><ul><li><p><strong><span style="color:#121317">Mobile Security Expertise: </span></strong><span style="color:#121317">Strong hands-on knowledge of Android and iOS security fundamentals, common mobile threats and vulnerabilities, security architecture, controls, and mitigation techniques.</span></p></li><li><p><strong><span style="color:#121317">Mobile Security Testing: </span></strong><span style="color:#121317">Practical experience in mobile penetration testing, security assessments, threat modelling, and implementing or assessing security controls.</span></p></li><li><p><strong><span style="color:#121317">Security Problem Solving: </span></strong><span style="color:#121317">A systematic and analytical approach to identifying, investigating, and resolving mobile security issues.</span></p></li><li><p><strong><span style="color:#121317">Authentication &amp; Cryptography: </span></strong><span style="color:#121317">Strong understanding of authentication, authorisation, cryptography, encryption, and secure design principles, with the ability to recommend appropriate cryptographic controls.</span></p></li><li><p><strong><span style="color:#121317">Continuous Improvement: </span></strong><span style="color:#121317">A proactive approach to improving security practices, tooling, controls, and ways of working.</span></p><p style="min-height: 1.7em;"></p></li></ul><p><strong><span style="color:#121317">Desirable knowledge &amp; experience:</span></strong></p><ul><li><p><strong><span style="color:#121317">Mobile Security Tooling &amp; Analysis: </span></strong><span style="color:#121317">Experience with reverse engineering, analysis techniques, and tools such as Burp Suite Pro, Frida, Objection, JADX, IDA Pro, Hopper, Radare, ADB, Apktool, YARA, Xcode, and Android Studio.</span></p></li><li><p><strong><span style="color:#121317">Mobile Development &amp; DevSecOps: </span></strong><span style="color:#121317">Knowledge of Android/iOS development, secure development practices, DevSecOps tooling, testing, and automation frameworks.</span></p></li><li><p><strong><span style="color:#121317">Development &amp; Reverse Engineering: </span></strong><span style="color:#121317">Familiarity with C, Java, Kotlin, Objective-C, Swift, JavaScript, Python or Bash, and ideally ARM/ARM64 assembly.</span></p></li><li><p><strong><span style="color:#121317">Security Research:</span></strong><span style="color:#121317"> Awareness of emerging security technologies, Cloud security, and developments in mobile operating systems, APIs, tools, and security libraries.</span></p><p style="min-height: 1.7em;"></p></li></ul><p><strong><span style="color:#121317">What to expect from our hiring process</span></strong></p><ul><li><p><strong><span style="color:#121317">1. First Hello:</span></strong><span style="color:#121317"> An informal chat with your dedicated Talent Attraction Partner to talk about Waracle, what you want out of your next move, salary, benefits, and office hybrid working model.</span></p></li><li><p><strong><span style="color:#121317">2. Craft Showcase: </span></strong><span style="color:#121317">A chance to demonstrate your real-world expertise. Depending on the role, this will be a focused take-home task (capped at 2–3 hours to respect your time) or a practical presentation.</span></p></li><li><p><strong><span style="color:#121317">3. Talking Impact: </span></strong><span style="color:#121317">A collaborative deep dive into how you solve problems, work with others, and raise the bar, guided by our core values and competency framework.</span></p><p style="min-height: 1.7em;"></p></li></ul><p><span style="color:#121317">Your Talent Attraction Partner will be in your corner through every step right up to your Welcome Ritual on day one</span></p><p style="min-height: 1.7em;"></p><p><strong><span style="color:#121317">Our Benefits</span></strong></p><p><span style="color:#121317">We believe in supporting our team, inside and outside of work. Here's a glimpse of what you can expect:</span></p><ul><li><p><strong><span style="color:#121317">Rest &amp; Recharge: </span></strong><span style="color:#121317">You'll receive 27 days of annual leave, plus 8 bank holidays, totaling 35 days of holiday to unwind and pursue your passions.</span></p></li><li><p><strong><span style="color:#121317">Financial Future &amp; Security:</span></strong><span style="color:#121317"> Plan for retirement with our company-matched 5% pension contribution. For added peace of mind, we also offer a Death in Service benefit, providing 2 x your annual salary for your loved ones.</span></p></li><li><p><strong><span style="color:#121317">Health &amp; Wellness:</span></strong><span style="color:#121317"> Our Medicash Health Cash Plans help cover everyday healthcare costs, complemented by an Employee Assistance Programme for confidential support, and Group Sickness Cover for peace of mind.</span></p></li><li><p><strong><span style="color:#121317">Flexible Working: </span></strong><span style="color:#121317">We champion hybrid working, providing a home office setup budget to ensure you're comfortable and productive wherever you are.</span></p></li><li><p><strong><span style="color:#121317">Learning &amp; Development: </span></strong><span style="color:#121317">Invest in yourself with access to Udemy Business and a dedicated learning and development budget for continuous growth.</span></p></li><li><p><strong><span style="color:#121317">Lifestyle Perks: </span></strong><span style="color:#121317">Make the most of our Cycle to Work Scheme, and enjoy exclusive gym and retail discounts.</span></p></li><li><p><strong><span style="color:#121317">Family First: </span></strong><span style="color:#121317">Our enhanced parental leave policies include support for fertility journeys, recognising diverse family needs.</span></p></li><li><p><strong><span style="color:#121317">Community &amp; Connection: </span></strong><span style="color:#121317">We foster a vibrant culture with regular fun meet-ups and lunch on us in the office once a month. You'll also have the opportunity to make a local impact through Spirit of Waracle, our initiative for getting involved in charitable causes locally, building strong team bonds and giving back.</span></p><p style="min-height: 1.7em;"></p></li></ul><p><em><span style="color:#121317">We are an equal opportunities employer and welcome applications from all suitably qualified persons regardless of their race, gender, disability, religion/belief, sexual orientation or age.</span></em></p><p>Find more <a href="https://www.arbeitnow.co.uk/english-speaking-jobs">English Speaking Jobs in United Kingdom</a> on Arbeitnow</a>

How to apply

  1. 1 Read the full details above and confirm you meet the eligibility criteria.
  2. 2 Prepare your documents — an updated CV, and any cover letter, proposal or certificates required.
  3. 3 Click Apply on official site to complete your application on Waracle’s official page.
  4. 4 Submit as early as possible — many close once filled.
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