Some things stay on the ground. Some things go to the cloud. We design what.
Not everything belongs in the cloud. Manufacturing line software, latency-sensitive trading, legacy regulated systems — these are happier on-prem. The trick is making the on-prem and cloud halves talk to each other reliably, securely, and without a 600ms ping every time someone opens a file. That's the design problem we solve.
Where pure-cloud fails.
The factory floor lost connection to head office.
Cloud-hosted MES system. Internet hiccup. Production stopped for an hour.
Healthcare PACS system can't go to the cloud.
Regulator-mandated on-prem retention. But everything else is cloud. Now both worlds need to talk.
Trading desk needs sub-millisecond latency.
Cloud round-trip is too slow. On-prem servers stay. The rest moves.
Cloud bill exceeds what equivalent hardware would cost.
Steady-state workloads aren't right for pay-as-you-go. Sometimes on-prem is cheaper.
What we design + build.
- 01
Workload placement decisions
Each system evaluated: cloud, on-prem, or both. Reasoned, documented, approved by stakeholders.
- 02
Site-to-cloud networking
Express Route, AWS Direct Connect, or site-to-site VPN. Predictable latency, encrypted, monitored.
- 03
Hybrid identity
Entra ID + on-prem AD synced. Single sign-on works across both worlds. Conditional access spans both.
- 04
Data flow + replication
Some data lives in both worlds. Replication direction, conflict resolution, and backup all designed.
- 05
Failover scenarios
What happens when one side goes down. Tested annually. Documented runbook.
- 06
Multi-cloud where it makes sense
When AWS + Azure together beats either alone — usually for resilience or pricing leverage.
How we design a hybrid setup.
Workload audit
Every system mapped: latency needs, data sovereignty, integrations, cost. Workload placement matrix produced.
Network design
How sites connect to cloud and to each other. Bandwidth, redundancy, failover paths.
Identity + security
Hybrid identity model. Single sign-on across boundaries. Conditional access for both worlds.
Pilot integration
One non-critical workload made hybrid. Tested under realistic load. Performance verified.
Production rollout
Remaining workloads placed per the design. Phased, tested, documented.
Operate + tune
Monthly review of placement decisions. Some things move. Some stay. Designs aren't frozen.
Where each kind of workload belongs.
| On-prem | Cloud | Either / both | |
|---|---|---|---|
| Latency-sensitive (manufacturing, trading) | Yes | Rarely | — |
| Regulator-bound (medical PACS, gov data) | Often | Where allowed | — |
| Steady high-load DB | Cheaper | Easier | Depends on cost math |
| Bursty workloads (batch, ML training) | Wasteful | Yes | — |
| Email + collaboration | Rarely | Yes (M365 / Workspace) | — |
| Web apps + APIs | Sometimes | Usually | Yes — multi-cloud for resilience |
| Backup + DR | Some copies | Some copies | Best to have both |
Hybrid infrastructure components.
Hybrid scorecard.
Across hybrid workloads in last 12 months.
Average for clients on Direct Connect / ExpressRoute.
Tested monthly. Documented annually.
Why each system is where it is, reviewed quarterly.
“We thought 'hybrid' meant we'd done cloud wrong. Senator convinced us it was the right architecture for our manufacturing setup, then helped us build it cleanly. Our MES stays on the floor, everything else lives in Azure. Best of both.”
Who needs this.
- Manufacturing, healthcare, financial firms with on-prem requirements.
- Firms with critical legacy software that can't move yet — but everything else can.
- Multi-cloud firms running AWS + Azure together for resilience or pricing.
- Acquirers integrating a target with a mix of on-prem and cloud assets.
Q01Is hybrid more expensive than pure cloud?
Is hybrid more expensive than pure cloud?
Sometimes, yes — you pay for both. But the right things on-prem can be much cheaper than equivalent cloud. We do the math per workload.
Q02What about latency between sites?
What about latency between sites?
With Direct Connect or ExpressRoute, single-digit milliseconds. Good enough for almost any application except real-time trading or specific industrial control.
Q03Can we go pure-cloud later?
Can we go pure-cloud later?
Yes — hybrid is often a transitional state. We design with that in mind, so workloads can shift cleanly when the constraint that kept them on-prem changes.
Q04What's multi-cloud good for?
What's multi-cloud good for?
Three reasons: avoiding vendor lock-in, resilience against a single cloud's outage, and price leverage at renewal. Not always worth the complexity.
Free 90-min architecture review.
We'll look at what you've got, what you're trying to do, and tell you whether hybrid is the right shape — and what the design should look like.