Networking

Enterprise networking engineered to stay invisible.SimplyRem designs and deploys enterprise networks, SD-WAN fabrics, zero-trust access, and multi-cloud connectivity for organisations whose business depends on the network being boring. Every engagement is led by a senior network architect with CCIE / JNCIE / equivalent depth and the engineering discipline to deliver runbooks, diagrams, and IaC — not Visio art. No certifications-collecting juniors. No box-shifting from a reseller catalogue.What we build

• Greenfield network architecture — campus, branch, data centre, and cloud-native designs documented end-to-end: IP plan, VLAN map, routing topology, redundancy strategy, and a written rollout plan.
• SD-WAN deployments — multi-site SD-WAN on Cisco, Fortinet, Palo Alto, VeloCloud, and Cloudflare Magic WAN, with QoS, application steering, and zero-touch provisioning.
• Zero-trust network access (ZTNA) — identity-aware access replacing legacy VPN, built on Cloudflare Access, Tailscale, Twingate, Zscaler, or open-source WireGuard fabrics.
• Multi-cloud & hybrid connectivity — AWS Transit Gateway, GCP Network Connectivity Center, Azure Virtual WAN, Direct Connect / Interconnect / ExpressRoute, mesh peering, and the policy work to keep it operable.
• Data centre networking — leaf-spine fabrics, EVPN-VXLAN, BGP / OSPF design, and the slow careful work of migrating from legacy three-tier to modern overlays without downtime.
• Network security & segmentation — micro-segmentation with NSX, Cisco ACI, or cloud-native security groups, plus next-gen firewall design on Palo Alto, Fortinet, and Check Point.
• Wi-Fi 6/6E/7 design — site surveys, AP placement, controller design, and roaming optimisation for offices, warehouses, and hospitality environments.
• Network observability & telemetry — streaming telemetry, flow analytics, packet-broker design, and the dashboards your NOC will actually open during an incident.
• Network automation — Terraform, Ansible, NetBox-as-source-of-truth, and CI-driven config rollouts that replace clicking through GUIs.

Why teams choose our networking services

• Senior-only delivery. A staff-level network architect owns the engagement — not a delivery manager with a reference architecture and a vendor-supplied bill of materials.
• Vendor-agnostic. Cisco, Juniper, Arista, Palo Alto, Fortinet, Cloudflare, open-source — we recommend by fit, not channel margin. We have no reseller relationships shaping the answer.
• Boring networks are good networks. We pick the smallest set of moving parts that solves the problem. EVPN-VXLAN only when you need it. SD-WAN only when the SLAs justify it.
• Documented as built, not as imagined. Every engagement closes with current-state diagrams, a written runbook, and a NetBox or Nautobot source of truth your team can actually keep up to date.
• Migration over big-bang. Cut-overs happen in reversible steps. Production stays usable through the entire engagement — and we plan rollback for every change before it ships.
• Security and compliance baked in. Segmentation, identity, logging, and change control designed for SOC 2, ISO 27001, PCI-DSS, and HIPAA scope from day one, not retrofitted before the audit.
• Stay-on retainers. Most clients keep us on a monthly retainer for ongoing change review, capacity planning, vendor escalation help, and on-call augmentation when something breaks at 3 AM.

SD-WAN, zero-trust, or traditional VPN — what should you choose?We are agnostic, and we will tell you honestly. Traditional VPN (IPsec / SSL) is the right call when you have a handful of sites, low complexity, and a finance team that hates monthly subscription costs. SD-WAN is the right call when you operate ten or more branches, run real-time traffic (voice, video, ERP), or need active-active multi-link with application-aware steering. Zero-trust network access is the right call when you need identity-aware access for a remote-first workforce, want to retire your legacy VPN, or are buying down lateral-movement risk after a security review. Most teams over fifty engineers end up with a small SD-WAN footprint for branches and ZTNA for users — and we will tell you when that is overkill.Our network engineering process1. Audit & discovery (1–2 weeks)We map your current network — physical, logical, cloud, identity — and produce a written current-state report covering topology, risk register, capacity headroom, vendor lifecycle, and the top failure modes we expect to see. You receive this deliverable even if you choose not to hire us for the build.2. Architecture & design (2–3 weeks)Target architecture documented in full: IP plan, routing topology, segmentation, identity integration, vendor selection rationale, cost model, and a phased migration plan with rollback for every step. Reviewed with your team before a single device is racked.3. Implementation in reversible cutsChanges ship in two-week increments — each one reversible. Lab-validated, change-managed, and shipped behind feature flags or maintenance windows. You see real progress every fortnight, not a month-three reveal.4. Cut-over, hardening & documentationFinal cut-over with a written runbook, capacity baseline, telemetry dashboards, and an on-call playbook handed to your team. A security review is included for every external-facing surface; deeper engagements pair with our cybersecurity practice for a full penetration test.5. StewardshipMost clients retain us on a monthly retainer — change review, capacity planning, vendor escalation help, NetBox source-of-truth maintenance, and on-call augmentation. Networks drift; a retainer is how you keep them honest.The networking stack we deploy

• Routing & switching: Cisco IOS-XE / NX-OS, Juniper Junos, Arista EOS, FRRouting on Linux.
• SD-WAN & WAN: Cisco Catalyst SD-WAN, Fortinet Secure SD-WAN, Palo Alto Prisma SD-WAN, Cloudflare Magic WAN.
• Zero-trust & remote access: Cloudflare Access, Tailscale, Twingate, Zscaler Private Access, WireGuard.
• Firewalls & security: Palo Alto NGFW, Fortinet FortiGate, Check Point, Cisco Firepower, pfSense / OPNsense at the edges.
• Cloud networking: AWS VPC + Transit Gateway, GCP VPC + NCC, Azure VNet + Virtual WAN, Direct Connect / Interconnect / ExpressRoute.
• Wireless: Cisco Meraki, Aruba CX / Instant, Juniper Mist, Ruckus, Ubiquiti UniFi for smaller footprints.
• Automation & SoT: Terraform, Ansible, NetBox, Nautobot, GitHub Actions for config CI/CD.
• Observability: Grafana, Prometheus SNMP exporter, Telegraf, Kentik, NetFlow / sFlow / IPFIX collectors, ELK for syslog.

Who we work withOur networking clients are typically Series B+ scale-ups outgrowing their first office network, mid-market organisations consolidating multi-region branches, fintechs and healthtechs with real segmentation and compliance pressure, and enterprises whose internal network team needs senior bench depth without a hiring round. We do our best work when the brief is concrete — a measurable reliability target, a cut-over date, a compliance deadline — and the team on the other side cares about operability as much as we do.Engagement models & pricing

• Network audit & architecture — $20k–$80k, two to six weeks. Current-state report, target architecture, risk register, vendor selection, and a phased migration plan.
• Build & migration — $80k–$400k+, three to nine months. Fixed scope, milestone-billed, with a documented cut-over and rollback plan for every phase.
• SD-WAN or ZTNA rollout — $60k–$200k, six to sixteen weeks. Vendor selection, design, zero-touch provisioning, identity integration, and post-launch tuning.
• Embedded network engineer — monthly retainer. Senior coverage for teams scaling without a full-time network architect on staff.
• On-call augmentation — monthly retainer. Pre-negotiated SLA-backed coverage for organisations that cannot yet sustain a 24/7 NOC.

We are booking new networking engagements one quarter at a time. Tell us what you are running — we respond to every brief within one business day, with NDA enclosed.