Muhammet Karakis

About

Experienced Software Engineer with over 10 years of experience and a strong background in backend development, specializing in web development, database design, mobile development, security software development, and so on. With a proven track record of working with top companies such as Amazon and Meta, I gained invaluable experience in building robust, scalable, and secure software applications. As a freelance Software Consultant, I am committed to working collaboratively with clients to understand their unique needs and provide custom software solutions that meet their specific requirements. With extensive experience in Java, C, C++, Node.js, and Python, I am well-equipped to take on challenging projects and deliver exceptional results.

Experience

• Senior Software Engineer · Facebook10-01-2021 – 01-01-2023

  As a Software Engineer on the WhatsApp Security team, I ensured the security of WhatsApp clients on Android, iOS, Web, and Desktop, protecting users from potential attacks. In this role, I: - Designed and developed a automated black-box security testing framework for the Android client, which improved the overall security of the app and helped to identify and fix any potential issues. - Developed security tests for the native (C/C++) codebase, ensuring that all potential vulnerabilities were identified and addressed. - Identified and fixed vulnerabilities found in client applications, ensuring that WhatsApp clients remained secure at all times. - Built a roadmap for the WhatsApp security vulnerability management plan. - Triaged security vulnerabilities found by various tools, prioritizing those that posed the greatest risk to WhatsApp users. Overall, my work on the WhatsApp Security team helped to ensure the safety and security of billions of users, and I am proud of the impact that I was able to make in this role.

• Software Engineer · Amazon12-01-2017 – 09-01-2021

  At Amazon, I worked on a range of impactful projects that helped to improve the company's global operations. Highlights of my work include: - Working on the AWS Payments team to develop secure, reliable payment systems and user-friendly tools for managing subscriptions. - Developing internationalization libraries and tools to enable teams to launch products and services worldwide. - Designing a runtime delivery system for application resources. I hold a patent for one of my designs. - Launching two features that improved fulfillment quality and enabled faster delivery in Europe. Overall, my time at Amazon allowed me to make a significant impact on the company's global infrastructure, and I am proud of the work that I accomplished during my tenure there.

• Senior Software Engineer · Smartface.io08-01-2013 – 11-01-2017

  Built cross platform mobile application development framework with all the tools including Cloud IDE, Cloud Debugger, Emulator, Application Publisher. Developed low-level APIs to efficiently build mobile applications using Javascript while keeping the flexibility. I lead a 6-month refactoring where we stopped incoming customers which was pretty successful and resulted being able to use all Android and most iOS libraries via Javascript, just like developing in Java and Objective-C.

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