Define and lead the architectural strategy for IT systems and BSS modernization across BT International, establishing the target state architecture that guides system rationalization, vendor consolidation and platform transformation initiatives
Own the application portfolio rationalization roadmap, making strategic keep/modernize/retire decisions based on technical fitness, business value and architectural alignment while managing stakeholder expectations
Establish API-first integration architecture that decouples BSS systems from each other and from product applications, creating clear service boundaries that enable independent team delivery and reduce system dependencies
Lead vendor rationalization strategy across SaaS platforms, on-premise systems and cloud-based solutions, reducing vendor dependencies through strategic build vs buy decisions and phasing out unnecessary third-party systems in favor of composable in-house capabilities
Champion modern architecture patterns including microservices, event-driven integration and API gateways that enable incremental transformation without big-bang rewrites
Collaborate with Data and AI architects to ensure IT systems generate high-quality data with proper lineage and governance, enabling analytics and AI capabilities across the platform
Drive architectural governance through design reviews and architecture conformance processes, ensuring solutions align with platform standards while empowering team autonomy and decision-making
Participate in technical spike work and proof-of-concepts to validate architectural decisions, evaluate integration approaches and prove out modernization strategies before committing to full implementation
Provide technical thought leadership on emerging platform architecture trends including composable architecture, API management and platform engineering, translating these into roadmaps that align with BT International's platform strategy
Mentor architects and engineers, fostering architectural thinking and technical leadership capability across both the architecture and product engineering organizations

Requirements

Strong engineering background with hands-on experience in software development or systems engineering, demonstrating technical credibility through active contribution to architecture implementations, POCs and technical spikes
Extensive experience leading IT systems and BSS architecture in telecommunications or complex B2B environments, with demonstrated success modernizing legacy landscapes across multiple system domains
Proven track record defining and executing architectural strategies that enabled large-scale system rationalization, vendor consolidation and platform transformation while maintaining business continuity
Significant experience establishing API-first integration architectures in complex enterprise environments, including work with API management platforms, event streaming and microservices patterns
Strong background working with major enterprise platforms (Salesforce, ServiceNow, Microsoft) and telco-specific BSS vendors, including negotiating technical approaches and influencing vendor roadmaps
Experience building and leading architecture teams, with track record developing technical leadership capability and establishing architectural practices that scale across product engineering organizations
Demonstrated success working in product operating models and agile contexts, with understanding of how architecture enables rather than constrains product team autonomy and delivery velocity
Background in telco operations and BSS domains with deep understanding of the technical and organizational challenges in transforming mission-critical systems that directly impact revenue

Benefits

Attractive salary
Cafeteria package - HUF 600,000/ year
Performance-based bonus
Comprehensive private health care package for all the employees, which can be extended to family members
Nursery support for mothers returning from maternity
Extended paternity leave: 10+10 day fully paid days
Commuting allowance
Home office allowance
Employee discount opportunities
Highly affordable mobile packages for the family as well

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard skills

API-first integration architecturemicroservicesevent-driven integrationarchitecture governancetechnical spike workproof-of-conceptssystem rationalizationvendor consolidationplatform transformationcomposable architecture

Soft skills

technical leadershipmentoringstakeholder managementcollaborationarchitectural thinkingdecision-makinginfluencingfostering autonomystrategic thinkingcommunication