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VP, Network Site Reliability Engineering Architect
Sumitomo Mitsui Banking Corporation
Remote · sg
4d ago
80%
Strong
Job description
Key Responsibilities A. Network Architecture & Design Authority • Define target-state and reference architectures for APAC network services, covering data centre, campus, branch, WAN/SD-WAN, Internet gateways, cloud connectivity, wireless, remote access, network security, load balancing, and core network services. • Produce and govern high-level and low-level designs, engineering standards, approved technology patterns, configuration baselines, and lifecycle roadmaps. • Lead design reviews and provide technical assurance for strategic projects, major changes, new site onboarding, technology refresh, migrations, and service introductions. • Ensure designs address availability, scalability, security, operability, capacity, disaster recovery, regulatory requirements, and support-model readiness from inception. B. Instrumentation, Observability & SLOs • Define network SLIs, SLOs, error budgets, reliability KPIs, and service-health measures for critical connectivity and security services. • Architect end-to-end telemetry across network devices, controllers, security platforms, synthetic monitoring, flow data, logs, events, configuration state, and user-experience indicators. • Establish actionable dashboards, intelligent alerting, dependency visibility, baseline performance, and early-warning thresholds that reduce noise and improve fault isolation. • Own the technical reliability reporting framework and use evidence from service performance, incidents, capacity, and availability to prioritise engineering improvements. C. Automation, Infrastructure as Code & Self-Healing • Design and develop automation for provisioning, configuration validation, compliance checks, inventory, software lifecycle, change pre-checks and post-checks, backup, recovery, and operational reporting. • Build reusable automation and Infrastructure-as-Code patterns using Python, Ansible, APIs, Git-based workflows, and suitable orchestration platforms. • Engineer closed-loop or human-approved auto-remediation for repeatable failure conditions, with appropriate security controls, auditability, rollback, and exception handling. • Promote test-driven network automation, peer review, version control, reusable modules, and standard engineering pipelines across network services. D. Reliability, Resilience & Capacity Engineering • Perform reliability and failure-mode analysis for critical network services, identifying single points of failure, hidden dependencies, convergence risks, and operational weaknesses. • Design and validate high-availability, disaster-recovery, failover, redundancy, traffic-engineering, and service-continuity patterns through regular testing and evidence-based improvement. • Lead capacity planning using utilisation trends, peak and percentile analysis, growth forecasts, service criticality, and agreed engineering headroom. • Optimise routing, switching, wireless, security-policy enforcement, application delivery, and network performance to improve stability, scalability, and user experience. E. Problem Management & Technical Escalation • Act as the L3 architecture and engineering escalation point for complex, recurring, or cross-domain network reliability issues. • Lead technical root-cause analysis and blameless post-incident reviews, converting findings into durable architecture, automation, monitoring, process, and documentation improvements. • Analyse incident patterns, change failures, configuration drift, vulnerabilities, technical debt, and operational toil to eliminate systemic causes rather than repeat manual recovery. • Partner with Network Operations, Regional NOC, Security, Infrastructure, Application, Cloud, and vendor teams to resolve dependencies and drive corrective actions to closure. F. Security, Risk, Governance & Lifecycle • Embed security-by-design, least privilege, segmentation, secure management access, configuration compliance, logging, and resilience controls into network architecture. • Support technical risk assessments, audit responses, exception reviews, and remediation plans with clear evidence, compensating controls, ownership, and target-state recommendations. • Govern network hardware and software lifecycle, including standards, version strategy, vulnerability remediation, end-of-sale/end-of-support planning, and technology refresh priorities. • Ensure architecture and engineering deliverables comply with enterprise policies, change-management requirements, applicable regulatory expectations, and internal control frameworks. G. Technical Leadership & Capability Development • Mentor network engineers and SRE practitioners in architecture, automation, observability, reliability engineering, troubleshooting, and documentation disciplines. • Define reusable playbooks, design templates, engineering checklists, test plans, and operational acceptance criteria for consistent delivery across APAC. • Facilitate architecture forums, technical reviews, proof-of-concepts, and knowledge-sharing sessions to improve engineering standards and reduce key-person dependency. • Engage technology vendors and internal stakeholders to evaluate solutions, validate roadmaps, and ensure that investments support the target network architecture. Qualifications & Requirements • Bachelor’s degree in Computer Science, Information Technology, Engineering, Telecommunications, or a related discipline. • Minimum 8–12 years of experience in network architecture, network engineering, infrastructure/platform engineering, Site Reliability Engineering, or network operations, including substantial experience in complex enterprise environments. • Demonstrable experience designing resilient data centre, campus, branch, WAN/SD-WAN, Internet, cloud connectivity, wireless, and network-security solutions. • Strong knowledge of routing and switching, BGP, OSPF, QoS, multicast, high availability, network segmentation, VPN, DNS/DHCP/IPAM, load balancing, and network access control. • Hands-on automation experience using Python, Ansible, REST APIs, Git, data formats such as JSON/YAML, and Infrastructure-as-Code or orchestration practices. • Strong experience with observability, telemetry, SNMP, syslog, flow analytics, synthetic monitoring, dashboards, alerting, SLIs/SLOs, error budgets, and capacity engineering. • Experience with enterprise network and security technologies such as Cisco, Palo Alto Networks, Fortinet, F5, Meraki, Zscaler, and Cisco ISE, or equivalent platforms. • Strong problem-management, troubleshooting, packet-analysis, RCA, post-incident review, risk assessment, and technical documentation capabilities. • Experience in banking, financial services, or another regulated environment preferred; knowledge of MAS TRM and relevant regional regulatory requirements is advantageous. • Preferred certifications include CCNP/CCIE, vendor security or cloud-networking certifications, Python/Ansible automation credentials, SRE/DevOps qualifications, and ITIL.