User Experience Designer jobs in United States

Who we are looking for

A Security Software Developer who will safeguard the Business by uncovering exploits, architecting robust defenses, and collaborating with teams to thwart sophisticated reverse engineers.

Within the fraud site defence team, you will be a key defender at the forefront of our security efforts on our iOS platform.

Every day, you will face sophisticated hackers by uncovering and analysing exploits, vulnerabilities, and cheat mechanisms.

You will design and implement cutting-edge anti-tamper and anti-cheat systems across our iOS native and companion apps, ensuring robust GPS data integrity, innovative client hardening, and anti-automation techniques.

This role will challenge you to leverage your iOS platform knowledge, reverse engineering, and mobile security expertise to keep the Business ahead in today’s dynamic threat landscape.

This role is eligible for inclusion in the Company’s hybrid working from home policy.

Preferred Skills, Qualifications, and Experience

• Experience in iOS security, mobile threat modelling, and developing anti-cheat measures.
• Proficient in low-level systems programming, operating system internals, and reverse engineering, with additional knowledge of ARM assembly being advantageous.
• Skilled in C++ for native development, with working knowledge of Swift for secure, high-performance mobile applications.
• Clear interest in architecting and implementing advanced security features, anti-tamper, and robust defense mechanisms.
• Experience in iOS development.
• Strong understanding of cryptography, encryption algorithms, hashing, and secure key management practices.
• Passionate about uncovering vulnerabilities and staying ahead of potential attackers.
• Proven ability to work effectively with cross-functional teams to translate complex security challenges into actionable solutions.
• Exceptional attention to detail, paired with a forward-thinking approach to enhancing security measures.

Main Responsibilities

• Identifying, analysing, and reverse engineering exploits, vulnerabilities, and cheat mechanisms to devise effective countermeasures.
• Designing and implementing advanced anti-tamper and anti-cheat systems across native and companion apps.
• Implementing measures that ensure GPS data in native apps remains unspoofed and untampered.
• Pioneering new methods from memory protection to code obfuscation to pre-empt and mitigate potential exploits.
• Designing and implementing robust detection and prevention systems to identify and block unauthorised automation, including bots, macros, and scripting tools, preserving user interaction integrity.
• Analysing emerging threats and hacker behaviour to refine and adapt security strategies.
• Providing mentorship and knowledge sharing to junior developers, fostering a proactive security culture.
• Creating and maintaining tools and scripts for real-time detection and response to suspicious activities.

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