Head of Internal Audit

About Us
1GLOBAL is a technology-driven global mobile communications provider, delivering global connectivity solutions to enterprises and consumers. Powered by a best-in-class telecom platform – including its own owned and operated global mobile core network, fully fledged in-house developed eSIM technology, and an extensive portfolio of telecom licenses – 1GLOBAL operates as a fully regulated telecommunications provider across 40 countries worldwide.

We serve many of the world’s leading banks, enterprises, and digital-first businesses, including neo-banks, global 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 in 2025 exceeding US$200 million and profits of over US$25 million, we generate strong cash flows to fund our growth allowing us to continuously invest 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 aspirations to offer telecommunications services to their clients.

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.

About the Team

We are seeking a credible and experienced Head of Internal Audit to establish and lead our internal audit function. Reporting to the Audit Committee of the Board and for day-to-day matters to the Finance Director, this role will design and execute a risk-based audit programme covering key business areas including finance, legal, HR, and operations. The Head of Internal Audit will also be responsible for overseeing remediation workstreams and managing relationships with senior stakeholders across the organisation.

The role will suit someone who brings technical depth across core financial and operational processes—such as order-to-cash, procure-to-pay, and tax—paired with the influencing skills to drive meaningful change. You’ll also have the opportunity to shape and mentor a growing team, starting with one direct report (Internal Audit Analyst).

About the Role

Internal Audit Framework & Execution

• Design and implement the internal audit function, including policies, planning cycles, and reporting structures.
• Develop a risk-based annual audit plan, with coverage across financial reporting, revenue assurance, billing, tax, payroll, HR processes, and contract compliance.
• Lead the execution of internal audits from end-to-end: scoping, risk and control assessment, testing design, fieldwork, and reporting.
• Establish documentation standards and quality assurance processes for audit activities.

Ad-Hoc Audits & Reporting

• Be the go-to person for ad-hoc queries by senior management and deliver timely and independently from day-to-day management views on the operational efficiency of the business.
• Prepare analysis of key performance indicators for the Audit Committee and the Board and report to them when requested to do so.

Stakeholder Engagement & Reporting

• Build trusted relationships with senior stakeholders across finance, legal, HR, operations, and executive leadership.
• Present audit findings clearly and constructively, ensuring recommendations are pragmatic and solution oriented.
• Provide regular reporting to the Finance Director and senior leadership team on audit progress, findings, and remediation.
• Serve as an advisor to the business on internal controls and risk management best practice.

Remediation Oversight

• Drive the resolution of audit findings by coordinating remediation plans and tracking progress through to completion.
• Hold business owners accountable for timely and effective action.
• Contribute to the development of policies and internal control improvements based on audit outcomes.

Team Leadership & Development

• Line manage and develop the Internal Audit Analyst, providing coaching, technical guidance, and performance management. Overtime the internal audit team may be expanded further to include additional headcount.
• Champion a culture of integrity, accountability, and continuous improvement.

Requirements:
About You
Must-haves

• Professional qualification in audit/accounting (e.g. CIA, ACA, ACCA, or equivalent).
• Strong internal audit experience gained in practice (e.g. Big 4 or top 10) and/or industry.
• Solid knowledge of business processes including order-to-cash, procure-to-pay, taxation, HR, and operational workflows.
• Proven ability to challenge and influence at a senior/executive level.
• Experience running audits from planning to reporting, including risk assessment and test execution.
• Demonstrated project management and stakeholder coordination capabilities.
• Experience managing and developing junior team members.

Nice-to-haves

• Experience in high-growth, multi-national or listed businesses.
• Experience within the Telecoms sector.
• Familiarity with GRC tools, audit workflow software, or data analytics in audit.

Benefits:
Why 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.