Footprint Engineer

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 in line to exceed US$200 million in FY25, 1GLOBAL is a profitable business generating significant cash flows to fund its ongoing investments in infrastructure, transformation, and growth. 2024 saw major client wins and marked 1GLOBAL's evolution from a multi-market telecommunication provider to a global technology-driven mobile connectivity powerhouse.

Established in 2022 by experienced tech founders and entrepreneurs Hakan Koç and Pyrros Koussios, 1GLOBAL is a European technology leader driving digital transformation in the global telecommunications market. It operates as a fully regulated Mobile Virtual Network Operator ("MVNO") in ten countries and as a regulated telecommunications operator in an additional 31 countries. Headquartered in the Netherlands, with world-class R&D hubs in Lisbon, Berlin, and São Paulo, 1GLOBAL employs over 450 experts across 15 countries.

Position Overview

1Global is seeking a talented and detail-oriented Footprint Engineer to manage and optimize the footprint of our diverse product range. In close collaboration with our wholesale team, you will play a critical role in designing and structuring SIM and eSIM profiles to align with footprint requirements, while also leading impactful update campaigns to ensure top-tier functionality and compatibility. We're looking for a proactive individual with a strong technical foundation, adept at troubleshooting support cases and enhancing operational processes for seamless footprint updates.

Key Responsibilities

• Define development requirements according to customer requests
• Develop, validate, and deploy new applets according to definitions
• Create and complete documentation of applet specifications and implementations
• Responsible for the life cycle of created and deployed applets
• Timely delivery of applet and SIM software developments
• High performance and reliability of SIM/eSIM services
• Effective observability and monitoring of SIM-based solutions
• Automation of testing processes for SIM applets and OTA flows
• Oversee the footprint management of all 1Global products, working closely with the wholesale and other networks team.

Requirements

Must Have

• Design and structure SIM and eSIM profiles tailored to footprint needs.
• Plan, design, and execute update campaigns for product enhancement.
• Troubleshoot and resolve support cases efficiently and effectively.
• Innovate and streamline processes to improve the efficiency of footprint update procedures.
• Perform implementations in live environment. Understanding of End to End system testing requirements.
• Follow-up and define Quality and Performance indicators
• Capacity and Performance Analysis, Reporting and Improvement Solution Definition
• Close relationship with external partners like carriers, service providers
• Have successful partnerships with other departments and teams

Qualifications

• Degree in Telecom Engineering or Computer Science or equivalent experience
• Knowledge of 3GPP, ETSI, standards and specifications for SIM/eSIM
• Knowledge and experience with protocols such as MAP, S6a
• Familiar with an RSP architecture and experience operating it
• Knowledge in scripting and have basic programming skills.
• Experience with protocol analyzer tools like Wireshark, Astelia, and ability to use them to troubleshoot networks errors/problems for the mentioned protocols
• Experience with ETSI NFV architecture and solutions
• Familiar with MVNO/MVNE/MVNA architecture(s) and landscape

Benefits

What we offer?

• CLT contract
  — enjoy job stability and reliable benefits that value your work
• Quarterly performance bonuses
  to reward your hard work and achievements
• Meal allowance paid into Caju card
   — R$100 per working day
• Health insurance with SulAmérica
  — 50% covered by the company
• Daycare allowance
  provided to mothers with children under 3 years old — R$500 per month per child
• Kickstart your journey with an exciting welcome
  onboarding trip to one of our European offices
  (Lisbon or Berlin)

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.