Roaming Solution Architect

Job Description

Who we are

VOIS (Vodafone Intelligent Solutions) is a strategic arm of Vodafone Group Plc, creating value for customers by delivering intelligent solutions through Talent, Technology & Transformation.
As the largest shared services organisation in the global telco industry with 30,000 FTE, our portfolio of next-generation solutions and services are designed in partnership with customers across Vodafone Group, local markets, and partner markets to simplify and drive growth. With our strategic partner Accenture, we work alongside our Vodafone customers, other Telco and tech companies to drive transformation, meet the challenges of our industry and ensure we stay relevant and resilient. This partnership is a unique, industry-first model which brings together the best of in-house and 3rd party capability.
We work with customers across 28 countries from 10 VOIS locations: Albania, Egypt, Hungary, India, Romania, Spain, Turkey, UK, Germany, Ireland, and with a network of teams in Czech Republic, Italy, Greece, and Portugal.
#VOIS #BeUnrivalled #CreateTheFuture

About this Role

We are seeking a Roaming Solution Architect to design and guide the evolution of roaming services across global Vodafone markets. In this role, the individual will own the end‑to‑end roaming architecture, ensuring secure, scalable, standards‑aligned solutions that support Vodafone’s international mobility strategy. This includes technical authority across S8HR, LBO, signalling, routing, emergency services, international interworking, and roaming security. The position also involves driving technical readiness, lifecycle assurance, architectural governance, and cross‑market alignment to ensure exceptional roaming performance and service reliability.

What you will do

• Define, maintain, and evolve the global roaming target architecture, covering S8HR, LBO, signalling, routing, and interconnect models.
• Lead High‑Level and Low‑Level Design creation for multi‑market roaming service deployments.
• Establish architectural principles, reusable patterns, and guardrails to support cross‑market engineering consistency.Ensure compliance with GSMA and 3GPP roaming specifications (including IR.21, IR.65, IR.85, IR.88, IR.95).Drive standardisation and cross‑market alignment for roaming services and technical frameworks.
• Lead technical readiness and launch governance for roaming services, ensuring seamless interworking with EPC/5GC, IPX, and signalling networks.
• Conduct inter‑operator testing, roaming trials, and international interoperability validation.
• Oversee lifecycle assurance, deep‑dive diagnostics, and issue resolution for deployed roaming services.Monitor and optimise key roaming KPIs including attach, registration, and session success.Act as Vodafone’s technical authority in vendor engagements, IPX discussions, GSMA working groups, and operator‑partner interactions.
• Provide technical mentorship to teams across VOIS and Vodafone markets.Support technical budget planning for roaming evolution, including investment recommendations and cost‑efficient design choices.Evaluate vendor proposals and assess licensing, capacity, and financial implications in line with Group strategy.

Who you are

8–12 years of experience in mobile core, roaming architecture, interconnect services, or international mobility.Strong expertise across roaming technologies such as S8HR, LBO, IPX connectivity, Diameter, SIP, MAP/CAMEL, and EPC/5GC interfaces (S6a, S8, S9, N26, N9, SEPP).Deep understanding of international roaming flows, service security, and GSMA/3GPP compliance.Proven experience leading multi‑market roaming deployments or complex cross‑operator programmes.Strong collaboration background with GSMA, 3GPP, vendors, and international operators.Bachelor’s degree in Telecommunications, Electronics, Computer Engineering, or a related discipline.Solid foundation in mobile core network design, roaming integration, and international service delivery.

Not a Perfect Fit?

Concerned you may not meet every requirement? Vodafone is committed to creating an inclusive workplace where everyone can thrive. If you are excited about this role but your experience does not align exactly with every aspect of the job description, you are encouraged to apply. You may be the right candidate for this or another opportunity, and the recruitment team will support you in exploring where your skills fit best.

What skills you will learn

• Advanced roaming architecture design across multi‑market ecosystems.
• Deep expertise in GSMA/3GPP standards and roaming interoperability.
• Cross‑market governance, global alignment, and architectural leadership.
• Vendor negotiation, stakeholder management, and technical authority communication skills.Data‑driven performance optimisation across international signalling and mobility services.

VOIS Equal Opportunity Employer Commitment

Vodafone recognises and celebrates the value of diversity in building a workforce that reflects the customers and communities it serves. No form of discrimination is tolerated. This includes, but is not limited to, discrimination based on race, colour, age, veteran status, gender identity, gender expression, sexual orientation, pregnancy, maternity or parental status, ethnicity, disability, religion or belief, political affiliation, trade union membership, nationality, citizenship, indigenous status, medical condition, HIV status, neurodiversity, social origin, cultural background, marital or civil partnership status, or socio-economic background.

Join Us

At Vodafone, we’re working hard to build a better future. A more connected, inclusive and sustainable world. As a dynamic global community, it's our human spirit, together with technology, that empowers us to achieve this.
We challenge and innovate in order to connect people, businesses, and communities across the world. Delighting our customers and earning their loyalty drive us, and we experiment, learn fast and get it done, together.
With us, you can truly be yourself and belong, share inspiration, embrace new opportunities, thrive, and make a real difference.

What’s in it for you

• Hybrid way of working
• Medical and dental services
• Life and hospitalization insurance
• Dedicated employee phone subscription
• Take control of your benefits and choose any of the below options: MEAL TICKETS/ PRIVATE PENSION/ VACATION VOUCHERS/ CULTURAL VOUCHERS within the budget.
• Special discounts for gyms and retailers
• Annual Company Bonus
• Loyalty Programme
• Ongoing Education – we continuously invest in you to ensure you have everything needed to excel on the job and enhance your skills
• You get to work with tried and trusted web-technology
• Getting in on the ground floor of a technology changing company
• We let you write your own story by planning vacations: go for a trip, experience new things, have fun and enjoy your 23 days off.
• Special Paternal Program - 4 months of paid paternity leave