Deputy CISO

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 is uniquely positioned to deliver seamless compliance and connectivity solutions. Serving the world's leading banks, corporations, and digital‑first businesses—including neo‑banks, travel companies, and payment service providers—1GLOBAL connects over 43 million devices globally. With 2024 full‑year revenue exceeding US$100 million and on track to surpass US$200 million in FY25, the company is profitable and reinvesting in infrastructure, transformation, and growth.

Position Overview

The Deputy CISO will play a critical leadership role within the Global Cybersecurity Organization, acting as the operational right hand to the Group CISO. The role drives the day‑to‑day execution of the security strategy across a worldwide telecommunications footprint, ensuring the resilience, integrity, and security of all network, IT, and cloud environments.

Key Responsibilities

Operational Leadership

- Leverage the 1Global Security Operations Team (CyberDefense), including SOC, Threat Detection & Response, Incident Response, Vulnerability Management, and Security Engineering

- Own daily operational security performance, ensuring 24/7 protection across a distributed, high‑availability telco environment

- Translate the CISO's strategic objectives into executable operational plans and measurable KPIs

- Oversee the CyberTrust team activity focused on compliance and security awareness

Security Architecture & Solutions

- Oversee the design, deployment, and lifecycle management of critical security technologies (SIEM, SOAR, EDR/XDR, IAM/PAM, network security, cloud security platforms)

- Evaluate and integrate new security solutions, emphasizing scalability, automation, and alignment with telco‑grade performance requirements

- Ensure technical standards, reference architectures, and hardening guidelines are maintained and adopted globally

- Ensure operational compliance with international standards and regulations (ISO 27001, NIS2, GDPR, telecom regulatory frameworks)

- Lead technical risk identification, quantification, and mitigation activities across infrastructure, applications, and services

- Oversee security audits, penetration tests, and red‑team scenarios, ensuring findings are remediated promptly

Incident Response & Crisis Management

- Serve as the technical lead during major security incidents, coordinating cross‑functional teams, external partners, and executive communication

- Maintain and continuously improve global incident response playbooks and readiness programs

Cross‑Functional Collaboration

- Act as the bridge between strategic security leadership and operational teams across all regions

- Work closely with Network Engineering, Cloud, IT, Product, and Managed Services teams to embed security into designs and operations

- Engage with external partners, MSSPs, vendors, and regulatory agencies as required

- Work closely with 1Global Group CTO and Platforms Director to ensure strategic alignment and secure implementations

Requirements

Must‑Have

- 10+ years in cybersecurity, with at least 5 years in operational leadership roles (SecOps, Cyber Defense, Security Architecture)

- Strong background implementing and managing enterprise security technologies and large‑scale security platforms in complex environments

- Proven experience in global telecommunications or other highly distributed, high‑availability infrastructures

- Deep understanding of telco‑specific security areas such as network core protection, signaling security (SS7/Diameter), mobile network security (4G/5G), OSS/BSS security, and cloud‑native telecom environments

Nice‑to‑Have

- Experience with global regulatory environments and cross‑border operations

- Certifications such as CISSP, CISM, CCSP, GCIH, or similar

- Experience leading hybrid internal/MSSP SOC models

- Familiarity with Zero Trust, Secure‑by‑Design, and automation‑centric security approaches

Personal Attributes

- Highly operational mindset with strong execution discipline

- Excellent communication skills, able to translate technical issues into business impact

- Calm under pressure and effective in crisis situations

- Collaborative, pragmatic, and able to influence diverse global teams

- Curious and restless in learning new challenges

Benefits – Why 1GLOBAL?

- Growth Opportunities: Advance your career in a fast‑growing telecommunications company

- Major Transaction Exposure: Play a key role in shaping the future telco industry

- Work with a Talented Team: Collaborate with senior leaders and external advisors

- Dynamic Work Environment: Thrive in an innovative, fast‑paced organization

- Professional Development: Enhance your skills alongside industry experts

- International Experience: Opportunities to work in different 1GLOBAL offices worldwide

- Open Communication Culture: Your ideas are heard and encouraged

- Get Things Done Attitude: Drive results and create tangible impact

1GLOBAL is an equal opportunity employer. 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.

Seniority level

Executive

Employment type

Full‑time

Job function

Information Technology

Industries

Non‑profit Organizations and Primary and Secondary Education

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