Network Solution Architect

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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, 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 nine 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 400 experts across 13 countries.
The Role As an Architect inside the Network Engineering department, you will act as a Solution Architect for new products, services, and technologies in 1Global, acting as a point of contact towards internal and external customers. Effectively work closely with Product and Marketing, but also with all different technical stakeholders and vendors, in shaping, designing, testing, and implementing new solutions.
The Architect is responsible for leading the requirements analysis process, in close contact with all relevant stakeholders, to a refined and clear scope, allowing a solution to be created, documented, and planned to be implemented.
We are open to hiring for this position in Lisbon, Portugal, and São Paulo, Brazil. The successfully hired candidate will receive onboarding and training in Lisbon, gaining valuable skills while experiencing one of Europe's most dynamic and renowned cities.
Key Responsibilities Iterates with the customer (internal and external) and other stakeholders to determine the technical requirements, risks, technical impacts, and recommendations.Design of new consumer and corporate telecom solutions.Collaborates with technical teams in defining reliable, modular, scalable, and customer-centric solutions, as well as planning and reviewing solutions.Design and present solutions in documents and workshops. For the solution, identify the impacts, efforts, and the resources needed.Market prospection of new solutions through elaboration and analysis of Request for Information/Proposal/Quotation processes and negotiation with potential suppliers.Follow up on new technology trends in the Telecom industry and identify interesting solutions for the product portfolio.Definition and follow up of company technological evolution roadmaps.Documents the existing technology portfolio and proposes recommendations for improvements and/or alternatives.Ensure and control quality of documentation execution (HLD's, LLD's, WO's, etc.).Ensure and control implementation quality. Understanding of End to End system testing requirements.Ensure the network is compliant with industry standards and regulations.Capacity and Performance Analysis, Reporting, and Improvement Solution Definition.Work on complex solutions that influence the design of current products and address design issues for future products or technologies. Enhance, simplify, and optimize existing applications and processes.Evolves the engineering maturity to be on par with the non-functional and functional state-of-the-art.Communicates transparently to the whole business.Reaches out to other teams and works towards alignment and overall continuous improvement.Requirements Must Have Excellent understanding of Mobile Networks and its architectures.Experience with MVNO architecture(s) and landscape. Familiar with roaming environment, including its technical, commercial, and regulatory aspects.Solid knowledge of networking principles & protocols, including security.Experience in network protocols like MAP, CAMEL, SIGTRAN, DIAMETER, SIP.Knowledge and experience of OCS and Gy/Sy interfaces.Experience with VoLTE and VoWiFi.Experience with LTE, 5G, IMS, IP technologies and protocols.Familiar with cloud-based solutions and virtualization technologies.High Level Designs and Low Level Designs. Experience developing and presenting internal and external documents.Experience with 5G Core Mobile Networks.Experience with monitoring tools and protocols in Mobile Networks.Anticipates problems and addresses them before they cause impact.Understands how big-picture goals inform technical details and vice-versa.Ability to work in complex environments (multi-cultural/multi-country/geographically distributed teams).High attention to detail. Doesn't leave things to be addressed or left undone.Business oriented, capable to engage and discuss with non-technical persons in order to create technical requirements.Excellent communication and presentation skills.English proficiency mandatory, other languages are a plus.Degree in Telecom Engineering or Computer Science or equivalent experience.Nice to Have Experience with cloud applications monitoring and analytics is a plus.Experience with AI/ML cloud-based service assurance is a plus.+8 years working on telecoms, designing and implementing mobile core networks.Why 1GLOBAL? Growth Opportunities: Advance your career in one of the fastest growing telecommunications companies, expanding over 40% 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 be 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.

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