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Solution Architect – OSS/BSS Transformation Projects

Square One Resources
Poland August 19, 2026
Solution ArchitectEnterprise-class ApplicationsREST APISOAPMessaging queuesEvent-driven ArchitectureApplication securityIntegration patterns
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Solution ArchitectEnterprise-class ApplicationsREST APISOAPMessaging queuesEvent-driven ArchitectureApplication securityIntegration patternsSolutionArchitectOSSBSS

About the role

Must-Have Requirements • 5+ years of professional experience as a Solution Architect . • Proven experience designing enterprise-class applications . • Strong experience with system integration using technologies such as: • REST APIs, • SOAP, • messaging queues, • event-driven architecture. • Ability to design and document both logical and physical solution architectures . • Good understanding of application security principles and practices. • Proven experience conducting technical analyses and supporting software development teams. • Strong understanding of enterprise application architecture and integration patterns. • Ability to collaborate effectively with technical and business stakeholders. Nice-to-Have Requirements • Previous experience in the telecommunications industry . • Knowledge of OSS/BSS systems and architectures . • Experience delivering business or technology transformation projects . • Experience working in complex enterprise environments with multiple technology and business stakeholders. Project Description Our client is a leading telecommunications infrastructure operator in Poland. As part of the planned reinforcement of project teams for the period September–December 2026 , we are looking for an experienced Solution Architect to support the delivery of transformation and development projects in the area of OSS/BSS applications . The role will involve designing scalable and secure enterprise solutions, supporting development and analysis teams, and working closely with Enterprise Architects and Product Owners to ensure the delivery of optimal technical solutions. Engagement Details • Position: Solution Architect • Domain: OSS/BSS / Telecommunications • Project type: Transformation & Development • Engagement period: September–December 2026 • Location: Poland Solution Architect, Enterprise-class Applications, REST API, SOAP, Messaging queues, Event-driven Architecture, Application security, Integration patterns Telecommunications industry, OSS/BSS systems , Transformation projects, Stakeholder management
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