Oracle ECE Architect - Lisbon Based

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 Position Overview We are seeking a highly skilled Oracle ECE and OCOMC Expert to strengthen our charging and billing operations and empower our charging & billing team. The ideal candidate will possess deep expertise in Oracle’s charging and mediation platforms, with the ability to translate complex technical concepts into practical training for non‑technical billing staff. This role bridges IT and business operations, ensuring accurate, scalable, and efficient handling of large volumes of usage events and billing data, in real time, providing team the technical knowledge and skills to manage and monitoring OCS in a way that delivers high levels of service availability to our customers with high level of accuracy in usage events rating, earning from our customers their trust and confidence in the service 1GLOBAL provide them. This role positions the expert as both a technical authority in Oracle ECE/OCOMC and a trainer who empowers the billing team to handle large volumes of usage events effectively and securely.