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Mobile Network Testing Intern - Part Time

Technology

Madrid, Spain

Part-time

About Us

1GLOBAL is a technology-driven global mobile communications provider, delivering integral connectivity solutions to enterprises and consumers. Powered by a best-in-class telecom platform with its own owned and operated global mobile core network in 15 countries, fully fledged in-house developed eSIM technology, and an extensive portfolio of telecom licenses; 1GLOBAL operates as a fully regulated telecommunications provider across 43 countries worldwide.

The company serves many of the world’s leading banks, multinational enterprises, global retailers and digital-first businesses, including neo-banks, global fast moving consumer goods companies, travel leaders, and payment service providers. Today, 1GLOBAL connects more than 80 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. In 2026 also the parent of the Lidl Group acquired a 10% interest in 1GLOBAL as part of a deal for Lidl to offer globally to its 180 million consumers communication services.

Recent years have marked a defining phase in 1GLOBAL’s journey, with major enterprise and mass-consumer client wins accelerating its 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. It operates as a fully regulated Mobile Virtual Network Operator (MVNO) in 15 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, its team of close to 550 experts across 16 countries is united by a single ambition: to redefine global mobile connectivity through technology, scale, and execution excellence.

About The Team

We are looking for detail-oriented students to support testing activities for our mobile network services. This role is ideal for candidates interested in telecommunications, mobile technology, or quality assurance who want hands-on exposure to a global MVNE platform.

About The Role

- Perform daily functional tests on mobile devices (calls, SMS, data, voicemail, call forwarding, barring, and related services)
- Execute structured test cases across physical smartphones and SIM/eSIM profiles
- Validate service configurations such as subscription controls and feature provisioning
- Support broader testing activities across the MVNE product suite




- Document test results and report issues clearly to the engineering and product teams
- Help maintain and organize the device testing inventory
- This is a part-time position of 20 hours per week for a duration of 12 months

Requirements

- Student currently based in Madrid (technical or engineering fields preferred)
- Strong attention to detail and reliability in executing repetitive test procedures
- Basic familiarity with smartphones (iOS and Android)
- Good written English and ability to follow structured test instructions
- Interest in telecommunications or mobile technology is a plus

Benefits Why 1GLOBAL?

- Growth Opportunities: Advance your career in one of the fastest growing telecommunications companies, expanding over 50% 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.

Apply now

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1GLOBAL is a trading name of 1GLOBAL Holdings B.V.

Mobile Network Testing Intern - Part Time

Technology

Madrid, Spain

Part-time

About The Team

We are looking for detail-oriented students to support testing activities for our mobile network services. This role is adecuado for candidates interested in telecommunications, mobile technology, or quality assurance who want hands-on exposure to a global MVNE platform.

About The Role

- Perform daily functional tests on mobile devices (calls, SMS, data, voicemail, call forwarding, barring, and related services)
- Execute structured test cases across physical smartphones and SIM/eSIM profiles
- Validate service configurations such as subscription controls and feature provisioning
- Support broader testing activities across the MVNE product suite
- Document test results and report issues clearly to the engineering and product teams
- Help maintain and organize the device testing inventory
- This is a part-time position of 20 hours per week for a duration of 12 months

Requirements

- Student currently based in Madrid (technical or engineering fields preferred)
- Strong attention to detail and reliability in executing repetitive test procedures
- Basic familiarity with smartphones (iOS and Android)
- Good written English and ability to follow structured test instructions




- Interest in telecommunications or mobile technology is a plus

Benefits Why 1GLOBAL?

- Growth Opportunities: Advance your career in one of the fastest growing telecommunications companies, expanding over 50% 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.

Apply now

About The Team

We are looking for detail-oriented students to support testing activities for our mobile network services. This role is ideal for candidates interested in telecommunications, mobile technology, or quality assurance who want hands-on exposure to a integral MVNE platform.

About The Role

- Perform daily functional tests on mobile devices (calls, SMS, data, voicemail, call forwarding, barring, and related services)
- Execute structured test cases across physical smartphones and SIM/eSIM profiles
- Validate service configurations such as subscription controls and feature provisioning
- Support broader testing activities across the MVNE product suite
- Document test results and report issues clearly to the engineering and product teams
- Help maintain and organize the device testing inventory
- This is a part-time position of 20 hours per week for a duration of 12 months

Requirements

- Student currently based in Madrid (technical or engineering fields preferred)
- Strong attention to detail and reliability in executing repetitive test procedures
- Basic familiarity with smartphones (iOS and Android)
- Good written English and ability to follow structured test instructions
- Interest in telecommunications or mobile technology is a plus

Benefits Why 1GLOBAL?

- Growth Opportunities: Advance your career in one of the fastest growing telecommunications companies, expanding over 50% 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.

📌 Mobile Network Testing Intern - Part Time (Madrid)
🏢 Truphone (formerly Cellnetrix)
📍 Madrid