1GLOBAL is a technology-driven global mobile communications leader, built to help enterprises unlock the full potential of mobile connectivity at scale. Powered by a best-in-class telecom platform – including our own owned and operated global mobile core network, a full end-to-end eSIM technology stack, and an extensive portfolio of telecom licenses – 1GLOBAL operates as a fully regulated telecommunications provider across 40 countries worldwide. Combined with our privileged access to the global wholesale telecom market, this positions us uniquely to deliver seamless, compliant, and scalable connectivity solutions anywhere in the world.We serve many of the world's leading banks, enterprises, and digital-first businesses, including neo-banks, fast moving consumer goods companies, travel leaders, and payment service providers. Today, 1GLOBAL connects more than 70 million people and devices globally, enabling our customers to launch, scale, and innovate with confidence in the mobile ecosystem.1GLOBAL is a profitable, fast-growing business. With full-year revenues exceeding US$200 million and profits of over US$25 million, we generate strong cash flows and fund our growth independently—continuously investing in infrastructure, platform innovation, and global expansion. Recent years have marked a defining phase in our journey, with major enterprise and mass-consumer client wins accelerating our evolution into a global mobile connectivity powerhouse, purpose-built to enable consumer brands to enter and succeed with their own telecommunications offerings.Founded in 2022 by experienced technology entrepreneurs Hakan Koç and Pyrros Koussios, 1GLOBAL has rapidly emerged as a European technology leader shaping the future of global telecommunications. We operate as a fully regulated Mobile Virtual Network Operator (MVNO) in 12 countries and as a regulated telecom operator in an additional 28 markets. Headquartered in the Netherlands, with world-class R&D hubs in Lisbon, Berlin, and São Paulo, our team of close to 500 experts across 15 countries is united by a single ambition: to redefine global mobile connectivity through technology, scale, and execution excellence. Position OverviewWe are looking for a talented Senior DevSecOps / Cloud Security Engineer to join our Technology Department, with a focus on strengthening and automating our security posture across cloud and hybrid infrastructure.As a DevSecOps / Cloud Security Engineer, you will be responsible for embedding security into every stage of our infrastructure lifecycle, from design to deployment. You will lead the implementation of cloud-native security controls in AWS, harden Kubernetes environments, and drive best practices across CI/CD pipelines. Your role includes continuous vulnerability management, network protection, monitoring for threats, and working with development, DevOps and IP teams to ensure secure-by-default practices. You'll also proactively identify risks, secure network perimeters, and automate remediation wherever possible.Key responsibilitiesDesign, implement, and evolve scalable cloud security controls across AWS multi-account environments using security-as-code principlesOwn Kubernetes security architecture including workload isolation, RBAC, pod security standards, and network segmentationEmbed security automation into CI/CD pipelines, including image scanning, IaC validation, and policy enforcementContinuously assess cloud and Kubernetes environments for vulnerabilities, misconfigurations, and emerging threatsDesign and maintain strong IAM and secrets management practices, enforcing least-privilege accessPartner with DevOps, Platform, and IP/Network teams to deliver security controls as code and by designAnalyze network traffic and security telemetry using flow logs, metrics, and targeted packet inspection where requiredEnsure alignment with internal security policies and external frameworks (CIS, NIST, ISO 27001, etc.)Produce and maintain clear documentation, including security architectures, runbooks, and incident response playbooksAct as a security champion, driving best practices, awareness, and secure engineering culture across teamsRequirementsA minimum of 3+ years Cloud Security / DevSecOps / Infrastructure SecurityStrong AWS security fundamentals (IAM, KMS, GuardDuty, Config, Security Hub)Solid Linux security and cloud networking fundamentalsHands-on Kubernetes security (RBAC, NetworkPolicies, pod security, image scanning)Infrastructure as Code (Terraform) and Git-based workflowsScripting for automation (Python or Go or Bash)Experience with vulnerability management and container securitySecurity-first mindset with strong troubleshooting skillsExperience with WAFs and cloud DDoS protectionComfortable with packet inspection, flow analysis, and traffic monitoring (tcpdump, Wireshark, Suricata, etc.)BenefitsWhy 1GLOBAL?Growth Opportunities: Advance your career in one of the fastest growing telecommunications companies, expanding over 100% year-on-year under the leadership of successful tech entrepreneurs.Major Transaction Exposure: Be in the driver's seat for transactions that will have an impact on the future telco industry.Work with a Talented Team: From the Board and the Founders to the Senior Management Team, you will collaborate daily with the most capable and renowned external advisors, and constantly being exposed to talented and driven individuals.Dynamic Work Environment: Thrive in a collaborative, fast-paced workplace where innovation is encouraged, and every contribution counts.Professional Development: Work alongside industry experts to enhance your skills and knowledge in a cutting-edge field.International Experience: Gain opportunities to work in different 1GLOBAL offices around the world as you grow within the company.Open Communication Culture: Join a team where your ideas are heard, and open dialogue is encouraged, fostering a supportive and transparent work environment.Get Things Done Attitude: Be part of a results-driven team that values efficiency, creativity, and the drive to make a tangible impact in the industry.1GLOBAL is an equal opportunity employer, we value your character as much as your talent. Diversity drives our innovation, and we offer a collaborative, dynamic, and international work environment. We are excited for you to join our mission to revolutionise connectivity globally.