Network Security & Infrastructure
The network is where security either holds or fails. We design, build and run it as one thing — not a network with security added on afterward.
The problem with bolted-on security
Most networks were not designed insecurely. They were designed for connectivity, and security arrived later — a firewall at the edge, an access-control project that stalled halfway, a flat VLAN nobody wants to touch because too much depends on it. Each addition was reasonable on its own. Together they produce an estate where the controls sit beside the network rather than inside it.
That shows up in familiar ways: a perimeter that is strong outward-facing and open once crossed, segmentation that exists on a diagram but not in the configuration, and rule sets nobody will prune because the blast radius of a mistake is unknown. None of it is negligence. It is what happens when the people who design the network and the people who secure it are different teams working at different times.
We do both, at the same time, as the same engagement. Segmentation is decided when the addressing plan is decided. Enforcement points are placed when the topology is drawn. It is considerably cheaper to design a boundary than to retrofit one.
What this covers
Core, distribution and access
Switching architecture from the core outward — resilient core design, sane distribution, and access layers that enforce policy at the port rather than trusting whatever plugs in. Routing that is understandable at 2am by someone who did not build it.
Segmentation and internal boundaries
Dividing the network so a compromise in one place does not become a compromise everywhere. That means real internal boundaries with enforcement behind them, not VLANs that route freely to each other. We scope segmentation to what the business actually needs to keep separate — payment systems, clinical devices, building controls, guest traffic — rather than segmenting for its own sake.
Secure wireless
Coverage and capacity designed for the building as it is used, with authentication that distinguishes a corporate laptop from a personal phone from a contractor’s tablet, and puts each where it belongs.
Firewall architecture
Placement, high availability and rule structure — including the unglamorous work of making a policy set that can still be reviewed in three years. Perimeter enforcement matters, but so does enforcement between internal zones.
Modernization and cutover
Replacing equipment that is past end-of-support, consolidating estates after an acquisition, or migrating off an architecture that has outgrown its original assumptions — planned so the cutover window is short, rehearsed and reversible.
How we engage
This follows the same three phases as the rest of our work. You can start at any of them — plenty of clients come to us mid-project, or with an estate somebody else built.
Consult
Assessment of what is actually deployed — not what the documentation claims. Current topology, where the boundaries are and are not, what is past support, and where the real exposure sits. You get a prioritized roadmap and a budget that reflects it, whether or not we do the work.
Integrate
Design and deployment: architecture, staging, configuration, and a cutover plan with a rollback path. The engineer who scoped it is the engineer who builds it, so nothing is lost in a handoff between sales and delivery.
Manage
Monitoring, patch and firmware lifecycle, configuration change control, and regular review of whether the design still fits how the business has changed. Networks drift; the point of managing one is to notice before it matters.
Vendor-neutral by design
We hold partnerships with several manufacturers and deploy plenty more, but we do not lead with a product. The right architecture depends on what you already run, what your team can operate confidently, and what you have already paid for. Replacing a functioning estate to suit a vendor relationship is not engineering.
In practice that means we will happily design around equipment you already own, inherit a mixed estate, or tell you the honest answer when the existing gear is fine and the actual problem is the design. See the vendors we work with for where our relationships and experience sit.
Who this is for
- Organizations with a network that grew organically and now needs an architecture rather than another addition.
- Teams facing a compliance requirement — segmentation, access control, audit evidence — with an estate that cannot currently demonstrate it.
- IT leaders who have inherited someone else’s design and need an honest assessment before committing budget.
- Businesses at the point where equipment is aging out and the refresh is an opportunity to fix the underlying structure.
Ready to hand off the tech?
Book a free technology & security assessment. We'll map your gaps and give you a prioritized roadmap — no obligation, no jargon.