Expert/Senior iOS Vulnerability Researcher

Summary

Join ELEKS as an Expert/Senior iOS Vulnerability Researcher in Ukraine and contribute to enhancing national and commercial resilience against mobile threats. This challenging role involves working with a team of top experts to solve complex problems in modern technology. You will conduct static and dynamic vulnerability research, design and execute fuzzing campaigns, and reverse engineer iOS binaries. The position requires strong proficiency in Objective-C, Swift, and ARM64 assembly, as well as in-depth knowledge of iOS security mechanisms. You will also develop proof-of-concept exploits and collaborate with offensive security teams. The role offers close cooperation with clients, opportunities for competence development, and a dynamic work environment.

Requirements

• Eligibility for a U.S. security clearance
• 5+ years of experience in mobile vulnerability research or reverse engineering
• Strong proficiency in Objective-C, Swift, and ARM64 assembly
• In-depth understanding of iOS platform security mechanisms, including sandboxing and jailbreak techniques
• Hands-on experience with browser/JavaScript fuzzing, Apple kernel internals, and memory corruption vulnerabilities
• Exceptional attention to detail with the ability to clearly document technical findings
• Ability to work professionally, reliably, and independently

Responsibilities

• Conduct static and dynamic vulnerability research across iOS applications and firmware
• Design and execute fuzzing campaigns targeting iOS components
• Reverse engineer iOS binaries using tools such as IDA Pro, Ghidra, and Hopper
• Develop proof-of-concept exploits and support the responsible disclosure process
• Collaborate with offensive security and red teams to assess real-world impact
• Document research findings and contribute to technical reports and internal security advisories
• Maintain and enhance internal mobile fuzzing frameworks
• Assist in threat emulation and defense hardening initiatives

Benefits

• Close cooperation with a customer
• Challenging tasks
• Competence development
• Ability to influence project technologies
• Team of professionals
• Dynamic environment with low level of bureaucracy