Solution Architect

We are seeking an experienced and technically proficient Solution Architect to lead the end-to-end solution design and upgrade strategy for UDM (User Data Management), IMS (IP Multimedia Subsystem), and Packet Core network elements. The architect will collaborate with cross-functional teams to define upgrade paths, validate design impacts, and ensure seamless execution in live network environments.

Key Responsibilities:

• Upgrade Strategy & Planning:
• Define upgrade approach (ISSU vs. redeployment) based on product capabilities and customer environment.
• Evaluate backward compatibility and interoperability impacts across EPC/5GC/Cloud components.
• Align upgrade activities with network architecture roadmap, lifecycle policies, and vendor release cycles.
• Solution Architecture & Design:
• Develop high- and low-level solution architecture for upgrades, including software/hardware pre-requisites.
• Create detailed upgrade impact assessments and rollback strategies.
• Validate upgrade path for clustered/HA deployments, geo-redundancy, and distributed architectures.
• Stakeholder Coordination:
• Work with delivery, operations, product teams, and customers to gather requirements and constraints.
• Participate in technical governance and change control boards for upgrade approvals.
• Present solution documents, risk mitigations, and test validation plans to internal and external stakeholders.
• Tools, Automation & Compliance:
• Leverage automation for pre-checks, health-checks, and post-upgrade validation (e.g., EVFNM, CaaS scripts).
• Ensure compliance with security, data protection, and audit standards during upgrade cycles.
• Integrate solutions with CI/CD pipelines where applicable.
• Documentation & Knowledge Sharing:
• Develop and maintain architecture documentation, upgrade playbooks, and decision logs.
• Share knowledge across teams via technical sessions, mentoring, and documentation.

Required Skills & Experience:

• Telecom Domain Expertise:
• Deep understanding of UDM (HSS, UDR, UDSF, AUSF), IMS (CSCF, TAS, MGCF), and Packet Core (MME, SGW, PGW, AMF, SMF, UPF) in EPC/5GC networks.
• Proven experience in at least 2-3 large-scale upgrade projects involving these domains.
• Technical Skills:
• Familiarity with virtualization (VMware, OpenStack) and containerization platforms (Kubernetes, Docker, CaaS).
• Competence in scripting (Python, Bash, Ansible) for automation.
• Experience with integration and deployment tools like Git, Jenkins, Helm is a plus.
• Design & Analysis:
• Strong grasp of system interdependencies, signaling flows (Diameter, SIP, HTTP2, GTP), and failover mechanisms.
• Ability to conduct impact analysis across interfaces (Nxx, Sxx, Gx, Rx, etc.).
• Soft Skills:
• Excellent communication and stakeholder management.
• Analytical mindset and problem-solving orientation.