Voice Platform Architect Principal

PlusNet; Greater London; Remote; GBP 150,000 - 210,000; Full time

Benefits offered by this job

Company car scheme or cash alternative

15% on target annual bonus

Private healthcare for you and family

Online private GP 24/7

Pension scheme – 5% employee + 10%公司

Holiday purchase scheme

Job summary

BT International is seeking a Voice Platform Architect Principal to define and deliver next-generation enterprise communications solutions. You will lead strategic architecture across Telephony, UC, CPaaS and CCaaS, aligning with business goals and regulatory compliance.

Role involves Agentic AI, event-driven designs, and SAFe Lean-Agile practices to produce measurable business outcomes. Flexible to base locations across the UK, Europe, India, and beyond.

Qualifications

• Experience defining technology strategy and influencing executives.
• Proven principal-level architecture leadership in large enterprise environments.
• Experience with SIP/IMS/SBCs, Carrier interconnects, and UC/CCaaS tech.

Responsibilities

• Define target state architecture for Telephony, UC, CPaaS and CCaaS.
• Lead adoption of Agentic AI and AI Harness within voice platforms.
• Ensure designs are secure, resilient and compliant with regulations.

Skills

Strategic leadership

Executive stakeholder influence

Voice / UC / CCaaS architecture

APIs & automation

Agentic AI

Education

Bachelor in Computer Science / related field

TOGAF

ITIL Foundation

Tools

Azure

AWS

OpenStack

Kafka

GIT/JIRA

Job description

Job Description

Job Title: Voice Platform Architect Principal

Job Location: GBR-London-BTHQ One Braham, HUN Budapest ONE, IND-Gurugram-IQ

Advertised Salary: competitive

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.