Join BT International as a Voice Platform Architect Principal in a flexible location across the UK, Hungary, India, or Europe. Lead the evolution of intelligent communication ecosystems leveraging AI agents, cloud-native technologies, and advanced telecommunications for global enterprises.
Requirements
Extensive principal-level architecture leadership experience in large, complex enterprise environments.
Deep expertise in SIP, IMS, SBCs, carrier interconnects, and telecom regulations.
Experience with REST APIs, GraphQL, OAuth2, microservices, and cloud platforms (AWS, Azure, GCP, OpenStack).
No specific degree is explicitly stated as mandatory in the posting.
Skills & Responsibilities
Strategic Architecture: Define target state architecture for telephony, UC, CPaaS, and CCaaS services to transform customer experiences.
Agentic AI & Automation: Lead the adoption of Agentic AI, AI harness methodologies, and event-driven architectures across voice platforms.
Vendor & Lifecycle Management: Drive vendor assessments, technology selections, and the exit of legacy capabilities for seamless customer migrations.
Compliance & Security: Ensure designs are resilient, secure, and compliant with international regulatory conditions through proactive testing.
Potential transition routes: People from Enterprise Architect, Solution Architect, or Telecom Engineering roles may bring relevant cloud, API, and voice infrastructure skills, alongside meeting senior architectural leadership requirements.
Job description
Please be noted that the role will be flexibile to be considered to be based in UK, Hungary, India or other European countries.
About the role
We are seeking a highly experienced Voice, Unified Communications, Contact Centre & Voice Agent Architect to define and deliver the next generation of enterprise communications solutions for Forbes 2000 companies . This role combines deep expertise in telecommunications, Unified Communications (UC), Contact Centre technologies, API-led integration, and Agentic AI architectures.
The successful candidate will lead the evolution of intelligent communication ecosystems that leverage AI agents, orchestration frameworks, automation platforms, APIs, and cloud-native technologies to transform customer experiences at the session layer and B/OSS workflow.
The architect will act as the bridge between Customer and Portfolio requirements into Behaviour Driven Development following SAFe Lean-Agile principles into measurable business outcomes.
What you’ll be doing
Define strategic target state architecture for Telephony, UC, collaboration, CPaaS and CCaaS services.
Develop architectures for Number Management, Emergency Service, Regulatory Compliance and Carrier Interconnects.
Lead the adoption of Agentic AI and AI Harness methodologies across voice platforms.
Establish standards for event-driven architectures and AI DevSecOps with Agentic control.
Prove architecture hypothesis with proof of value accountability
Adjudicate design and investment cases at the architectural control board and support submissions to the BTI investment board
Ensure designs are resilient, secure and compliant to international regulatory conditions through proactive testing and monitoring.
Champion Behaviour Driven Development following SAFe Lean-Agile principles.
Drive vendor assessments and technology selections.
Lead exit of legacy capabilities and tooling for customer and service migrations
Essential Skills / Experience
Strategic Architectural Leadership
Proven principal-level architecture leadership experience within large and complex enterprise environments.
Demonstrated ability to define technology strategy and influence executive stakeholders across business and technology functions.
Experience communicating architectural direction, transformation strategy and investment recommendations at executive leadership level.
Voice, Contact & Unified Communication Essentials
Extensive expertise in: SIP, IMS, SBCs, Carrier interconnects, Telecom regulations, Call Servers, Number Management, Messaging, Fraud, Shaken/Stir, Media Servers/Gateways, IVR and agentic voice applications inc operational hands on experence.
Experience integrating enterprise systems through APIs and automation platforms – Rest APIs, GraphQL, OAuth2, Microservces, Service Level Execution (SLEE), CAMARA & vCON
Desirable
Microsoft Teams OC, WebEX UC, Zoom inc phone.
Implementation of TM Forum ODA, ITIL foundation, TOGAF, Opensource developments and software development workflows (GIT, JIRA)
Experience delivering enterprise contact centre architectures – Genesys, Five 9s, WebEx CC.
Hands on experience
Hands on deployments in private and public cloud native environments. Openstack, Azure, AWS, GCP inc with VMWare
Strong understanding of modern software architecture principles and enterprise platform engineering
Experience with data management and exposure. Kafka, Relational, Time Series & In Memory inc in AWS.
Experience deploying AI agents into operational environments, and prototype with coding agents
Our Package
Tailored benefits make a real difference. That’s why we offer a comprehensive range to support your growth, wellbeing, and everyday life. You can design the package to suit you and your lifestyle. Your core benefits include:
Company car scheme (or cash alternative)
15% on target annual bonus
Private healthcare for you and your family
Access to an online private GP 24/7 for you and your immediate family
Market-leading paid carers leave with up to 2 weeks off
Equalised maternity, paternity, and adoption leave – 18 weeks’ full pay and 8 weeks’ half pay
Discounted EE and BT products, including mobile and broadband
Market leading Pension scheme – 5% from you and 10% from us
Holiday purchase scheme
You can select additional benefits, including healthcare, dental, gym memberships and more when you’re ready.
At BT International, our purpose is to keep the world connected. As part of BT, we build on almost 180 years of innovation and expertise to deliver secure connectivity and digital services to some of the world’s leading multinational businesses and organisations. Our customers trust us to safeguard their data, drive their digital transformation and keep their businesses running. With colleagues on the ground across the world and supporting customers wherever they need to operate, BT International offers a truly global experience. Whether it’s about providing cloud connectivity, helping organisations collaborate, or enabling innovation in cybersecurity and digital services, you’ll be part of a team that shapes how businesses succeed in a world that is being transformed by AI. If you have the drive and ambition to make an impact on a global stage, BT International is where it happens.
