Who Are We?Welltech is a global wellness technology company with Ukrainian roots. Our mission is to build and scale wellness apps globally through state-of-the-art, tech-driven performance marketing.We are one of the most established players in the wellness app space, and we are accelerating. Over 25.5 million people across the world use our apps — Muscle Booster, Yoga-Go, and WalkFit — to build healthier habits, move more, and feel better every day. Every subscription represents a real person making a real change in their life, and we take that seriously.With 500+ people across hubs in Cyprus, Ukraine, Poland, Spain, and the UK, we combine the scale of a market leader and the drive of a team that's just getting started.What We're Looking ForWe are seeking a talented and motivated Senior Security Engineer (x/f/m) to join our small but dedicated Security Team. In this role, you will play a crucial part in strengthening our overall security posture, collaborate across teams and domains, and own security initiatives company-wide.Responsibilities:Own and drive execution of multiple key security initiatives, ensuring they are well-integrated, documented, and effectively support Welltech’s security goals.Collaborate with leadership to shape the team’s roadmap, providing your expertise.Mentor junior team members in the Security team to help them grow in their role.Collaborate with engineering, IT, and product teams to embed security best practices throughout the development lifecycle and operational processes.Champion continuous improvement in Security Engineering by regularly reviewing processes, implementing automation, and driving standardization to enhance team efficiency and organizational impactLead PCI-DSS Compliance initiative with relevant stakeholdersDesign, implement, and maintain security controls and measures across Welltech’s systems, networks, and cloud environments.Contribute to threat modeling, risk assessments, and incident response, supporting a proactive and resilient security posture.Develop and refine internal security policies, standards, and tools to support company-wide security goals.Support and lead security awareness efforts, helping to foster a strong security culture throughout the organization.Continuously evaluate emerging threats, technologies, and practices, driving improvements to Welltech’s overall security maturity.