JOB DESCRIPTIONAssume a vital position as a key member of a high‑performing team that delivers infrastructure and performance excellence. Your role will be instrumental in shaping the future at one of the world’s largest and most influential companies.
As a Lead Infrastructure Engineer at JPMorganChase within the Enterprise Technology, network services team, you design, operate, and continuously improve enterprise DNS and IPv6 capabilities with a focus on reliability, security, and measurable service outcomes. You partner with infrastructure, application, and operations teams to deliver scalable network design, accurate name resolution, and strong diagnostics practices in a diverse, inclusive environment.
Job Responsibilities
- 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 infrastru

📌 Lead Infrastructure Engineer (Buenos Aires)
🏢 慨正橡扯
📍 Buenos Aires