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Portrait of Mahmoud Mahajna

Mahmoud Mahajna

Senior Software Enginner | Security ResearcherHaifa, IL

I'm a Software Engineer and Security Researcher with over 10+ years of experience spanning software development and cybersecurity. I specialize in building scalable applications, identifying security vulnerabilities, reverse engineering, and malware analysis. I'm passionate about understanding how systems work, uncovering their weaknesses, and engineering secure, reliable solutions.

Experience

  1. ActiveFenceWorking

    Security Researcher

    Nov 2025 – Present

    Israel (Hybrid)

    Research Android malware campaigns, reverse engineer APKs and ARM64 native libraries, and investigate malicious behavior through static and dynamic analysis. Identify evasion techniques, exploitation paths, and malicious infrastructure while developing AI-assisted research and automation workflows.

    AndroidIDA ProBinary NinjaJEBJADXFridaARM64Python
  2. Synack Red Team

    Security Researcher

    Aug 2023 – Oct 2025

    Remote (Remote)

    Conducted offensive security assessments across web, mobile, cloud, and enterprise environments. Identified and exploited vulnerabilities, reverse engineered mobile applications, and assessed Active Directory security. Developed automation tools and documented findings with actionable remediation guidance.

    Burp SuiteFridaGhidraPythonAWSActive DirectoryBloodHound
  3. Via Transportation

    Backend Developer

    Dec 2021 – Jul 2023

    Israel (On-Site)

    Designed and developed scalable Node.js microservices on AWS for workforce and shift management. Built event-driven integrations using AWS Lambda, SQS, and SNS, developed Flask APIs, and optimized real-time services for performance and infrastructure efficiency.

    Node.jsPythonFlaskAWSLambdaSQSSNS
  4. Munters

    Full Stack Developer

    Jan 2021 – Dec 2021

    Israel (On-Site)

    Developed web applications for IoT-based agricultural climate control systems using Angular and TypeScript. Integrated Azure IoT Hub to enable real-time environmental monitoring, remote configuration, and management of connected devices.

    TypeScriptAngularAzureAzure IoT HubIoT
  5. HOT

    Full Stack Developer

    Jan 2018 – Dec 2020

    Israel (On-Site)

    Developed customer-facing web applications and internal management tools, including an Angular-based service purchasing platform, WPF administration applications, and custom Umbraco CMS features.

    AngularTypeScriptC#WPFUmbraco CMS

Skills

Programming Languages

TypeScriptJavaScriptPythonCC++C#JavaKotlinAssemblyBashPowerShell

Frontend Development

ReactAngularHTMLCSSSCSSJavaScriptTypeScriptWebAssembly

Backend Development

Node.jsExpressFlaskFastAPI.NETSpringWebSocketsREST APIsGraphQLRPC

Databases & Messaging

PostgreSQLRedisMongoDBRabbitMQMSSQLMySQL

Cloud & DevOps

AWSAzureDockerKubernetesHelmGitLab CI/CDGitHub ActionsTerraformAnsible

Cyber Security

Web SecurityMobile SecurityPenetration TestingActive DirectoryCloud SecurityVulnerability Research

Reverse Engineering & Malware Analysis

IDA ProGhidraJEBBinary NinjaJadxFridaLLDBGDBWinDbgx64dbg

Operating Systems

LinuxWindowsMacOSEmbedded LinuxRaspberry Pi OSAndroidiOS

Want to work together?

I'm always happy to talk about interesting problems. Email is best.

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