About 1GLOBAL

1GLOBAL is a technology-driven global mobile communications provider dedicated to empowering enterprises worldwide to unlock the full growth potential of mobile connectivity. With a best‑in‑class telecom technology platform, a comprehensive suite of globally viable regulatory licenses, and privileged access to the telecom wholesale market, 1GLOBAL delivers seamless compliance and connectivity solutions to banks, corporations, and digital‑first businesses—connecting over 43 million devices worldwide.

Position Overview

We are looking for a talented Senior DevSecOps / Cloud Security Engineer to join our Technology Department, focusing on strengthening and automating our security posture across cloud and hybrid infrastructure. The role embeds security in every stage of our infrastructure lifecycle, from design to deployment, and leads the implementation of cloud‑native security controls in AWS, hardening Kubernetes environments, and driving best practices across CI/CD pipelines.

Key Responsibilities

• Design and implement scalable cloud security controls in AWS multi‑account environments.
• Lead Kubernetes security architecture, including PodSecurity, RBAC, and network policies.
• Enforce zero‑trust network architecture and secure segmentation across cloud and hybrid environments.
• Integrate security automation into CI/CD pipelines (image scanning, SAST, IaC analysis).
• Deploy and manage endpoint and vulnerability management tools such as CrowdStrike and Tenable.
• Continuously monitor infrastructure for vulnerabilities, threats, and misconfigurations.
• Enforce least privilege IAM policies and secure secrets management.
• Conduct regular audits, penetration testing, and hardening of cloud workloads and host systems.
• Conduct network traffic inspection using tools like VPC Flow Logs, packet capture, or NetFlow.
• Collaborate with DevOps and IP teams on security‑as‑code principles.
• Maintain compliance with internal policies and external standards (e.g., CIS, NIST, ISO 27001).
• Tune and respond to alerts from WAF, IDS/IPS, and SIEM systems.
• Document security controls, incident response playbooks, and operational runbooks.
• Champion a security‑first culture through collaboration, training, and awareness.

Requirements

• A minimum of 5 years in DevSecOps, Cloud Security, or Infrastructure Security roles.
• Strong expertise in AWS security services (IAM, KMS, GuardDuty, Config, Security Hub, etc.).
• In‑depth understanding of network security principles (firewalls, routing, segmentation, VPNs, IPsec, etc.).
• Proven hands‑on experience with Kubernetes security (RBAC, NetworkPolicies, OPA/Gatekeeper, Admission Controllers).
• Experience operating CrowdStrike Falcon and Tenable Nessus/Tenable.io.
• Experience with WAFs, DDoS protection, NIDS/NIPS, and threat intelligence integrations.
• Comfortable with packet inspection, flow analysis, and traffic monitoring (tcpdump, Wireshark, Suricata, etc.).
• Proficiency in Infrastructure as Code (Terraform, Terragrunt) and configuration management (Ansible, Packer).
• Strong scripting/programming skills (Python, Go, or Bash) for automation and tooling.
• Solid understanding of Linux security hardening and secure cloud networking.
• Familiarity with service‑mesh security in Istio or similar.
• Experience with GitOps workflows using tools like Argo CD or Flux.
• Understanding of vulnerability management, secure software development lifecycle (SSDLC), and security controls for containers.
• Exposure to compliance frameworks such as ISO 27001, SOC2, NIST, PCI‑DSS.
• Excellent analytical and problem‑solving skills with a proactive mindset.
• Certifications such as AWS Certified Security Specialty, CKS, OSCP, or CISSP are a plus.
• Experience with multi‑cloud security (Azure/GCP).
• Background in ethical hacking, bug bounty programs, or red teaming.
• Familiarity with tools like Falco, Sysdig, Trivy, or eBPF‑based runtime security tools.

Benefits

• Growth Opportunities: Advance your career in a fast‑growing telecommunications company.
• Major Transaction Exposure: Opportunity to influence industry‑shaping transactions.
• Dynamic Work Environment: Collaborative, fast‑paced workplace with innovation encouraged.
• Professional Development: Work with industry experts to enhance skills in cutting‑edge security.
• International Experience: Potential to work in multiple 1GLOBAL offices worldwide.
• Open Communication Culture: Ideas are heard and dialogue is encouraged.
• Results‑Driven Team: Efficiency, creativity, and tangible impact are valued.

Job Details

Location: Warsaw, Mazowieckie, Poland

Salary: $70,000.00 – $80,000.00

Seniority Level: Mid‑Senior

Employment Type: Full‑time

Equal Opportunity Statement

1GLOBAL is an equal‑opportunity employer. We value diversity and offer a collaborative, dynamic, international work environment. We are excited for you to join our mission to revolutionise connectivity globally.