Lead Infrastructure Engineer - DDI, IPv6

Job title: Lead Infrastructure Engineer - DDI, IPv6

About the Role Lead a vital infrastructure engineering function within JPMorganChase's Enterprise Technology network services team, focusing on designing, operating, and improving enterprise DNS and IPv6 capabilities with reliability, security, and measurable service outcomes. Partner with infrastructure, application, and operations teams to deliver scalable network design and accurate name resolution in a diverse, inclusive environment.

What You'll Do

• Design enterprise DNS architectures and standards that support resilient, scalable name resolution across hybrid environments.
• Engineer IPv6 addressing plans and network designs using 128-bit formats, subnetting, and architecture patterns (e.g., GUA, ULA).
• Implement reverse DNS delegation for IPv6 using ip6.arpa zones and nibble-format delegation models.
• Execute IPv6 transition and mitigation approaches (e.g., Dual-Stack, NAT64, DNS64) aligned to application and network readiness.
• Operate core DNS services with an availability-first mindset, ensuring consistent performance and predictable change outcomes.
• Troubleshoot complex DNS and connectivity issues using disciplined diagnostics (e.g., dig, nslookup) across A vs. AAAA resolution paths.
• Analyze routing and protocol interactions impacting DNS and reachability, including TCP/IP layering and routing protocols (e.g., BGP, OSPFv3).
• Automate repeatable DNS and IPv6 operational tasks to reduce manual effort and improve consistency, auditability, and time-to-recovery.
• Document designs, runbooks, and troubleshooting playbooks that raise team effectiveness and reduce operational ambiguity.
• Use enterprise-authorized AI capabilities within the work environment to accelerate infrastructure analysis and design documentation, validating outputs and handling operational data according to sensitivity and security requirements.
• Apply reuse-first, AI-assisted practices within delivery and automation routines to identify recurring issues and validate remediation options, ensuring changes are traceable/auditable and aligned to resiliency and security expectations.

What We're Looking For

• Formal training or certification on Infrastructure engineering concepts and 5+ years of applied experience.
• Deep experience with DNS, IPv6, and related networking protocols.
• Knowledge of IPv6 transition technologies (Dual-Stack, NAT64, DNS64) and reverse DNS (ip6.arpa).
• Proficiency with diagnostic tools (dig, nslookup) and routing protocols (BGP, OSPFv3).
• Ability to design, implement, automate, and document large-scale DNS/IPV6 environments with a focus on reliability and security.

Compensation & Benefits

• Salary range: USD 142,500.00 - USD 185,000.00 per year.
• Benefits information not specified in the posting.