Security Engineer

Posted 4 days agoViewed

💎 Seniority level: Middle, 3+ years

📍 Location: Dubai, United Arab Emirates, Belarus, Ukraine, Kazakhstan, Armenia

🔍 Industry: Web3/DeFi

🏢 Company: MIRA- Search

⏳ Experience: 3+ years

🪄 Skills: AWSProject ManagementAgileCybersecurityGCPSCRUMAzureWeb3.jsDevOpsRisk Management

Develop and implement the platform’s security and resilience strategy.
Ensure the security of IT infrastructure, prevent and respond to cyber incidents.
Implement and maintain security monitoring and protection systems (SIEM, IDS/IPS, WAF, etc.).
Analyze vulnerabilities, assess risks, and develop mitigation strategies.
Maintain and update IT security documentation.
Collaborate with developers, DevOps, and technical teams to integrate security best practices.
Evaluate and test new solutions, analyze vendors and tools.
Build and manage the security team.

Posted 12 days ago

📍 South Africa, United Arab Emirates, France

🔍 Mobile App Security

🏢 Company: Yinkozi

🔧 Requirements

Proven knowledge of Android internals
Proficiency in writing efficient code in ARM64 assembly, C/C++, and Python
Experience with Android NDK, JNI, and native code optimization techniques
Experience with reverse engineering tools and applying findings to security improvements
Demonstrated ability to improve performance on devices with limited processing power and memory

💡 Responsibilities

Write and optimize low-level code in ARM64 assembly, C/C++, and Python to secure Android applications from vulnerabilities such as memory corruption, race conditions, and buffer overflows.
Develop and implement new detection techniques to identify and mitigate security threats on the device.
Analyze and refine Android codebases with a focus on native code integration, deep Android internals, and kernel-level interactions.
Debug complex issues related to memory management and low-level system interactions.
Utilize reverse engineering tools like Ghidra, IDA Pro, or Frida to understand vulnerabilities and develop appropriate protections
Collaborate with our cybersecurity team to design defense mechanisms that balance security and performance
Stay current with the latest security research and industry best practices to continuously improve our mobile shield.

PythonAndroidCybersecurityAssemblerC++AlgorithmsData StructuresMobile testingRESTful APIsLinuxDebugging

Posted 12 days ago

Posted 19 days ago

📍 AMER/EMEA/APAC

🧭 Full-Time

🔍 Security

🏢 Company: asymmetric.re

🔧 Requirements

Strong desire to understand how things work, and the ability to quickly absorb new information.
Familiarity with at least one or more Rust-based smart contract platforms, including Solana, Cosmwasm, NEAR (strong preference to pre-existing Solana experience).
Proven experience as either a consultant, engineer, bug bounty hunter or auditor.
Prior experience working with open source development practices.
Willingness and aptitude to learn multiple Rust-based runtimes.
Understanding of blockchain infrastructure technologies, such as bridging or oracles.
Prior experience with reverse engineering and/or fuzzing.
Prior experience with code reviews
Prior leaderboard ranking on bug bounty, code contest, or CTF competitions.

💡 Responsibilities

Design and implement security and defense-in-depth controls to prevent and limit vulnerabilities.
Perform cutting edge security research in Solana and other Rust-based smart contract platforms.
Develop security tooling and developer workflows to aid in the early detection of vulnerabilities.
Collaborate with core contributors to conduct internal security audits.
Shepherd external security audits with the help of leading 3rd party audit firms.
Operate leading bug bounty programs on Immunefi.
Work in a diverse decentralized team environment with web3 professionals.
Clearly communicate security risks and solutions.
Adhere to the highest standards of integrity, trust, and professionalism.

BlockchainCybersecurityAPI testingRustWeb3.jsCI/CD

Posted 19 days ago