Sr. Network Engineer_Johnson City, TX (Hybrid, Face to Face Interview)

(Must be local to Johnson City, TX / In-Person Interview Required) Position: Sr. Network Engineer Location: Johnson City, TX (Hybrid) Duration: Contract Job Description: Top Requirements ? ACI/SDWAN Experience ? Has done a legacy migration ? Great Communication Project Overview We are seeking an experienced Network Architect / Senior Network Engineer (Contract) to support a large-scale migration from a legacy network architecture to Cisco Application Centric Infrastructure (ACI). Including pre-routing changes as preparation for ACI. This role is highly hands-on and focused on design support, migration and test planning, execution support, network and services validations, and troubleshooting during the transition. The person is expected to participate in Change Management and CAB meetings, presenting documentation and other support material. The ideal candidate has deep ACI expertise, strong routing fundamentals, and real- world experience migrating networks and routing protocols with minimal business impact. The candidate must live in the Austin-Leander-Johnson City area or within 2 hrs. drive. Key Responsibilities ? Support the migration of legacy Layer 2/Layer 3 network infrastructure to Cisco ACI. ? Support the integration of ACI to SD-WAN. ? Design support, validate, and implement ACI fabrics, including: o Tenants, VRFs, Bridge Domains, EPGs o Contracts, filters, and policy models o External connectivity (L3Outs,L2Outs) ? Plan and execute network migrations with minimal downtime, including: o Brownfield ACI deployments o Phased cutovers and rollback strategies ? Design, implement, and migrate routing protocols, including: o BGP o OSPF o EIGRP o Migrations between routing protocols (e.g., EIGRP ? OSPF or BGP) ? Integrate ACI with existing enterprise networks, firewalls, WAN/SDWAN, and data center services. ? Perform hands-on configuration, validation, and troubleshooting during and after migration windows. ? Support change management, documentation, and operational handoff. ? Collaborate with internal network, systems, applications and security teams. ? Provide guidance and best practices for ACI operations post-migration. Deliverables ? Weekly ACI operational overview sessions with Network Team. ? Documentation of key troubleshooting workflows or SOPs, tailored for the newly implemented network. ? Validate and deliver final ACI detailed diagram in Visio or other company approved program. ? Document with lessons learned during the project. Required Qualifications ? Strong hands-on experience with Cisco ACI (5+ years preferred) ? Proven experience with network migrations, especially: o Legacy to ACI o Routing protocol transitions ? Deep knowledge of routing protocols: o BGP (iBGP/eBGP, route-maps, redistribution) o OSPF (multi-area design, redistribution) o EIGRP(redistribution) ? Strong understanding of: o Layer 2 & Layer 3 networking o VRFs, route leaking, redistribution strategies o Data center network design principles ? Experience configuring and troubleshooting: o Cisco Nexus platforms o ACI spines, leaves, and APIC ? Ability to work in a team environment under the guidance of the lead Network Architect, and under the Network Operations Manager supervision. ? Strong documentation and communication skills Preferred / Nice-to-Have Skills ? Experience with brownfield ACI migrations ? ACI Multi-Pod or Multi-Site experience ? Experience integrating ACI with: o Firewalls (Cisco) o WAN / SD-WAN environments ? Cisco certifications (CCNP, CCIE, or ACI-specific certifications) Best Regards, T Chandra Sekhar - Technical Sr. Recruiter Agile Global Solutions, Inc ....."Empowering Enterprises" 193 Blue Ravine Road, Suite 160, Folsom, CA 95630 Direct - 916-413-7282 Sekhar@agileglobalsolutions.com | www.agileglobal.com