Sr Principal Network Architect; Remote

Ventus, part of Digi International, is an industry leader in IT networking innovations,leveraging technology to produce market-driving network solutions. Operating from over 20 years of experience delivering secure enterprise class networks, Ventus develops cellular wireless and fixed line SD-WAN, Hybrid WAN, and Cellular WAN solutions for an expanding array of business connectivity applications.

We are seeking a Senior Principal Architect to own the design, evolution, and standardization of Ventus’s cellular IoT and managed network service platforms. This is a deeply technical, internally-focused role (~70% internal architecture / ~30% customer-facing) where you will define reference architectures across cellular WAN, SD-WAN, SASE, and cloud-managed network services – with direct engagement on strategic RFPs and customer design reviews.

The ideal candidate brings 10+ years of network architecture experience in a cellular-first MSP, MVNO, or MNO environment, with hands‑on expertise in LTE/5G, eSIM, multi‑tenant infrastructure, and meaningful exposure to banking, lottery, retail, or critical infrastructure customers.

• Define and own cellular IoT reference architectures spanning LTE/4G and 5G, optimized for the availability and security demands of critical IoT infrastructure customers.
• Lead SD‑WAN and SASE architecture across distributed cellular and hybrid WAN environments, including segmentation and security integration for regulated industries.
• Architect and evolve the multi‑tenant MSP network platform: BGP/OSPF routing, IPsec/GRE VPN, QoS, and carrier‑grade high availability, backed by Datacenter/Colo and AWS hybrid connectivity (Direct Connect, Transit Gateway, VPC).
• Develop and enforce network design standards, reference architectures, and documentation that drive consistent, repeatable service delivery at scale.

• Develop vertical‑specific reference architectures for Ventus’s core markets: branch and ATM connectivity for financial services, secure real‑time transaction networks for lottery and gaming, multi‑site retail, and critical IoT infrastructure.
• Architect connectivity solutions that satisfy the uptime, security, and compliance requirements of regulated industries, including PCI‑DSS‑aligned segmentation and financial services network resilience standards.
• Partner with Product and Engineering to translate vertical regulatory and audit requirements into concrete platform design decisions.

Serve as Tier‑4 escalation authority for complex cellular, SD‑WAN, and hybrid WAN issues across the managed services platform.

Mentor network engineers; lead architecture reviews, vendor evaluations, and cross‑team knowledge transfer.

On strategic deals and RFPs (~30% of time): lead design workshops, author SOWs, and present architecture recommendations to enterprise buyers and their technical teams.

• 10+ years in network engineering and architecture, with at least 5 years in an MSP, MVNO/MVNE, or cellular‑first managed services environment.
• Demonstrable expertise in distributed network architecture: LTE/4G and 5G RAN, core, and transport; SIM/eSIM lifecycle; MVNO/MVNE carrier integrations; APN/PDN management.
• Strong hands‑on experience with SD‑WAN, hybrid WAN, and core routing/switching: BGP, OSPF, IPsec/GRE, QoS, and multi‑tenant network segmentation.
• AWS networking proficiency: VPC, Transit Gateway, Direct Connect, Route 53, NACLs, Security Groups.
• Experience with IoT device management platforms (Ventus Genesis, Digi Remote Manager, Cradlepoint Net Cloud, or equivalent) at scale.
• Active CCNP; CCIE is a significant differentiator. AWS Certified Advanced Networking – Specialty strongly preferred.
• Translates complex cellular IoT and network architecture into clear direction for both engineers and non‑technical executive stakeholders.
• Sets architectural direction and drives consensus across engineering, product, and sales without requiring direct authority.
• Execution‑oriented: brings large platform initiatives and cross‑functional…