SOLUTION / DOMAIN ARCHITECT1 Telstra Mainframe Exit · App Group 3 · Solution & Domain Architecture · TRAM / AWS-Aligned Modernisation Programme / Context Telstra Mainframe Exit / AI Accelerated Legacy Exit, focused on App Group 3 application modernisation and architecture governance. ABOUT THE ROLE The Solution / Domain Architect1 will provide solution and telecom-domain architecture leadership for Telstra Mainframe Exit App Group 3. The role will translate application, business, interface, data, NFR, migration and dependency findings into treatment recommendations, target designs and delivery-ready architecture inputs. It will support architecture alignment to TRAM and cloud-native direction, preservation of operational integrity and business parity, and coordination across application, migration, cloud, testing and transition stakeholders. Solution Architecture Telecom Domain TRAM Alignment Migration & Cutover Architecture Governance Solution & Domain Architecture Develop and maintain solution-architecture inputs for assigned App Group 3 applications and treatment pathways. Translate application functions, business rules, interfaces, data, batch behaviour and NFRs into target-design and migration considerations. Provide telecom-domain guidance for applications supporting Copper, fixed-line, billing, credit-management and reporting functions. TRAM & Target-State Alignment Align solution decisions to Telstra Reference Architecture Method and the sourced AWS-aligned modernisation direction. Promote open standards, capability-based architecture, API-first design and decoupled functional boundaries where applicable to approved treatments. Document architecture assumptions, constraints, dependencies and decisions for review through the relevant governance and design-authority forums. Legacy Modernisation & Treatment Planning Support assessment of refactor, migration, decommissioning-support and treatment-to-be-confirmed pathways. Help preserve business rules, downstream interfaces, output formats,



functional parity and required NFRs through modernisation. Collaborate with mainframe, Java/AWS, data, integration, testing and operations specialists on implementable designs. Data, Interface & Migration Architecture Define or review data, interface, batch and integration impacts for migration and cutover planning. Support dependency mapping, reconciliation, golden-dataset replay, parallel/dual-run and rollback considerations where required by application treatment. Identify architecture risks arising from undocumented dependencies, source-code availability, third-party tooling or strategic- capability readiness. Architecture Governance & Stakeholder Engagement Present architecture recommendations, decision options, risks and trade-offs to programme, client and delivery stakeholders. Work with programme governance, architects, PMO, risk, OCM, delivery and incumbent teams to maintain alignment across solution decisions. Provide clear evidence-based inputs to RAID, change requests, readiness reviews and architecture sign-offs. Transition, Cutover & Stabilisation Support Support knowledge acquisition and transition-in by validating application architecture, dependencies, operational processes and documentation. Provide architecture support for test readiness, migration, cutover, hyper-care and handover into steady-state support. Ensure solution decisions account for business continuity, security posture and relevant compliance constraints. REQUIRED SKILLS & EXPERIENCE Architecture & Domain Experience in solution or domain architecture for complex enterprise or telecommunications transformation.



Ability to model business capability, application, integration, data and technology implications of legacy modernisation. Strong communication and facilitation skills across business, architecture, engineering and governance stakeholders. Mainframe & Cloud Modernisation Working understanding of COBOL/DB2-centred estates and associated IMS, VSAM, NATURAL, SAS, batch and interface complexity. Experience with mainframe-to-cloud or legacy-modernisation patterns, including Java/Spring and AWS-aligned architecture where relevant. Ability to assess functional parity, NFR, migration, integration, cutover and operational-continuity implications. Governance & Delivery Experience producing solution blueprints, architecture decisions, dependency maps, treatment inputs, migration designs and risk/assumption records. Ability to work through incomplete documentation without treating unvalidated assumptions as facts. Experience collaborating in multi-vendor, regulated and distributed delivery environments. DESIRABLE QUALIFICATIONS & EXPERIENCE Telecommunications architecture experience across order, service, billing, assurance, customer or fixed-line capabilities. Enterprise/solution architecture or cloud certification is desirable Experience in data migration, integration architecture, application decomposition, cutover or legacy decommissioning support. Experience with multi-vendor architecture governance and executive/client design reviews. PERSONAL ATTRIBUTES & SOFT SKILLS Structured problem solver who converts ambiguous legacy-estate information into actionable architecture decisions. Pragmatic architect who balances target-state alignment with safe delivery and continuity. Evidence-led communicator who clearly separates confirmed facts, assumptions and open decisions. Collaborative across Telstra, Cognizant, incumbents, cloud/platform, testing and operations teams. Robust ownership of architecture actions, dependencies, risks and sign-offs.

📌 Solution Architect - Mainframe modernization -SM /AD Level (India)
🏢 People First Consultants
📍 India