Cloud migration · Full-stack engineering · Platform operations
We migrate the systems that can’t go down.
StackGB moves production infrastructure to the cloud — planned, rehearsed, and executed without downtime — then builds and operates what runs on it.
Request an assessment[09:41:02] drain legacy traffic ··············· ok
[09:41:07] promote green environment ·········· ok
[09:41:09] health checks 4/4 ·················· ok
[09:41:09] cutover complete — downtime 0ms
02 / How we operate
Standards, not claims03 / The playbook
Monolith → managed KubernetesForty-five minutes of deploy risk, cut to five.
Starting point
A typical estate: a fifteen-year-old monolith on bare metal. Deployments take 45 minutes, happen out of hours, and fail often enough that every release needs a rollback engineer on standby.
The migration
We containerise service by service and stand up managed Kubernetes alongside the legacy estate — then run both in parallel. Same traffic, same data, compared nightly.
Cutover day
Cutover happens on a weekday morning, inside business hours — a cutover you can only attempt at 2am is a cutover you don’t control. Traffic shifts gradually, and every step is reversible.
What changes
Releases go from one a week to twelve a day. The out-of-hours deploy window disappears. Infrastructure cost typically falls by a third.
Fig. 01 — release frequency, before and after
45→5
minutes per deploy
12/day
releases
0ms
cutover downtime
04 / Method
Typical engagement · 6–8 weeks- 00
Assess
infrastructure audit · dependency graph · risk register
- 01
Plan
cutover design · rollback rehearsal · stakeholder comms
- 02
Migrate
staged cutover · dual-run validation · live monitoring
- 03
Verify
load & failover tests · security review · sign-off
- 04
Optimise
cost tuning · runbooks · team handover
Every phase ends with a decision point. You can stop at any of them.
05 / Capabilities
What we build and moveCloud migration
We take production systems off ageing infrastructure and onto AWS, GCP, or Azure without stopping them — every cutover planned, rehearsed, and reversible.
- Audit and risk register in week one
- Rehearsed, reversible cutover — zero downtime
- Ninety days of post-migration optimisation
Full-stack development
Product engineering on the MERN stack — MongoDB, Express, React, Node — with TypeScript throughout, shipped through the same pipelines we operate.
- Working software every two weeks, not a slide deck
- Typed, tested code with CI/CD from the first commit
- Built to run on the infrastructure we already operate
Platform & DevOps
Kubernetes operations, CI/CD, observability, and cost control as an ongoing engagement.
Details →06 / Architecture
A typical transformationEvery engagement lands in the same place: containerised workloads on managed Kubernetes, deployed through CI/CD, observable end to end — and cheaper to run than what they replaced.
07 / The standard
What we build to0.00%
the uptime target every platform we hand over is built to meet
0
planned downtime in a cutover — rollback is rehearsed, not improvised
24/7
observability on everything we run — if it moves, it’s on a dashboard
Written into every statement of work
08 / Contact
Response within one working dayTell us what you’re running.
One conversation. An honest read on what your migration or product build would take: the effort, the risk, and what it would save. No deck. No pressure.
Request an assessmentDartford, United Kingdom