Clement Gomiero
Clement Gomiero is an associate security consultant with K2 Integrity/Leviathan Security Group. He specializes in manual security testing, source-level analysis of applications and binaries, and identifying authentication, authorization, and input-handling flaws. In addition to his work in application assessments, he has a strong foundation in offensive security and has developed custom automation tools to streamline […]
Denys Tushchenko
Denys Tushchenko is a security consultant with K2 Integrity/Leviathan Security Group, where he provides security architecture guidance and conducts black- and white-box penetration testing of applications, security audits, and security research and development. His work focuses primarily on web application and API penetration testing, as well as comprehensive security reviews of source code, supporting organizations […]
Vladyslav Koltsov
Vladyslav Koltsovis is a security consultant at K2 Integrity/Leviathan Security Group, specializing in penetration testing across web, API, mobile, cloud-based, and network environments, including Amazon Web Services deployment reviews focused on IAM, EC2, S3, and other major AWS services. He conducts both black-box and white-box application assessments and supports clients in evaluating the security of […]
Rostyslav Grynov
Rostyslav Grynov is a security consultant at K2 Integrity/Leviathan Security Group, specializing in complex application security penetration testing and evaluations, with experience spanning web, API, mobile application, and network penetration testing. Rostyslav conducts black- and white-box penetration testing of applications, auditing, security research, and the training and mentoring of other security consultants. His work focuses […]
Phillip Christensen
Phillip Christensen is a security consultant at K2 Integrity/Leviathan Security Group, specializing in complex applications, security penetration testing, and technical evaluations. His work includes hardware security engagements, security code reviews, and application penetration testing across web, API, and native platforms, as well as extensive testing of cloud services and applications for major cloud platform providers. […]
Max Andonov
Max Andonov is a senior director in K2 Integrity’s Financial Crimes Risk Management practice. He works with financial institution clients to review and improve their financial crime policies and practices and ensure compliance with U.S. and global requirements, including the Bank Secrecy Act (BSA), Foreign Corrupt Practices Act (FCPA), and Office of Foreign Assets Control […]
Nazar Yakymiv
Nazar Yakymiv is a security consultant at K2 Integrity/Leviathan Security Group. His work focuses on conducting black-, gray-, and white‑box application penetration testing, as well as contributing to security research and development initiatives. Nazar specializes in security testing of web applications, APIs, external networks, and cloud‑based systems in commercial settings. Prior to joining K2 Integrity/Leviathan […]
Shane Tachick
Shane Tachick is an experienced information security consultant specializing in penetration testing, security assessments, and risk communication. With a strong technical background and a strategic approach to security, he helps organizations identify vulnerabilities, mitigate risk, and strengthen overall security posture. Shane has led offensive security engagements aligned with compliance frameworks such as PCI, FedRAMP, and […]
Viktor Sytnik
Viktor Sytnik is a technical director at K2 Integrity/Leviathan Security Group, where he leads advanced cybersecurity engagements and oversees black-, grey-, and white-box penetration testing projects. He specializes in application and mobile penetration testing and cloud security, providing expert security architecture guidance while mentoring consultants in the identification and remediation of complex vulnerabilities. Prior to […]
Viacheslav Sych
Viacheslav Sych is a software engineer with more than a decade of experience in software development, specializing in back-end web and desktop applications. His work spans the full software development lifecycle, with a strong focus on building, maintaining, and refining complex systems across a range of platforms and technologies. Viacheslav has contributed to the development […]