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Snowflake Migration · Norwich

Snowflake Migration in Norwich

Migrating Norwich organisations onto Snowflake, where the temptation is to recreate the warehouse you had. Much of an existing schema exists to work around the old platform's limits — aggregate tables built because queries were slow, extracts created because concurrency was constrained — and carrying those forward means paying for a new platform to behave like the old one.

Why this comes up

The problem

The migration plan reproduces every aggregate table and nightly extract that existed to compensate for the previous system.

What you get

What we deliver

  • Existing structures assessed for whether they solve a problem that still exists
  • Workarounds for old platform limits identified and dropped deliberately
  • Historic data migrated according to what is genuinely queried
  • Transformations rebuilt rather than translated where the old approach was shaped by constraints
  • Access model redesigned, since the previous one reflected different mechanics
  • Parallel running with reconciliation before the old platform is retired

Want this scoped for your business in Norwich?

Thirty minutes, no charge, no sales script. You leave with a written summary of what snowflake migration would actually involve — whether or not you use us.

Book a 30-minute call

Working in Norwich

East of England

Norwich pairs a long-standing insurance sector with a large agricultural hinterland, and agri-food clients here often need systems that work offline and sync later, because rural connectivity is a real constraint.

Agri-food clients frequently need systems that work offline and sync later, alongside more conventional insurance and professional services work.

Sectors we work with in Norwich

  • Insurance & Financial Services
  • Agriculture & Food
  • Digital & Creative
  • Tourism

What we work with

Technologies and platforms

  • Snowflake
  • dbt
  • SQL
  • Airflow

Who we work with

Industries we serve

  • Financial services
  • Retail
  • Media companies
  • Manufacturing
  • SaaS businesses

Why us

Why Norwich businesses choose Asionis

  • Projects typically launched within 4–8 weeks
  • No long-term contracts required
  • All team members UK-based
  • Dedicated account manager and development team
  • Transparent reporting with monthly performance metrics
  • Scalable from startup to enterprise

How we work

  1. Step 1

    Free consultation

    A 30-minute call to understand the problem. You keep the written summary either way.

  2. Step 2

    Proposal

    Scope, timeline and a fixed price, in writing, before anything starts.

  3. Step 3

    Build

    Short cycles with regular check-ins, so you see progress rather than hear about it.

  4. Step 4

    Launch and support

    We handle the go-live and stay available afterwards.

Snowflake Migration in Norwich — common questions

Why not lift and shift?
Because you inherit the compromises. Pre-aggregated tables, scheduled extracts and denormalised copies exist because the old platform could not answer the question directly — recreating them means the new platform never gets to demonstrate that it can.
How much history should move?
What is queried, plus what you are required to keep. Storage is inexpensive and migration effort is not, so bringing decades of detail that nobody has queried since it was written is cost without a corresponding use.
What about existing transformations?
Review them rather than translating. Logic written for a platform with different performance characteristics is frequently structured around avoiding operations that are now trivial, and rebuilding it produces something simpler as well as faster.
Is parallel running necessary?
For at least one full reporting cycle. Numbers must reconcile between old and new before anyone decommissions anything, and a month-end comparison finds the discrepancies that daily checks pass over. It also gives the finance and reporting teams a period to build confidence in figures they will shortly have no way of checking against anything.
Do you work with businesses across Norfolk?
Yes. We are based in Leicester, United Kingdom and work with clients throughout East of England, including Norwich and the surrounding Norfolk area. Most collaboration happens remotely, and we travel for kick-offs and key milestones.
What kind of Norwich businesses do you usually work with?
Agri-food clients frequently need systems that work offline and sync later, alongside more conventional insurance and professional services work. Beyond that we work across Insurance & Financial Services, Agriculture & Food, Digital & Creative and Tourism.
Do you cover the areas around Norwich?
Yes — we work throughout East of England, including Cambridge, London. Norwich is an urban area of roughly 200,000+, and we take on work across the wider Norfolk region rather than the city boundary alone.

Talk to us about Snowflake Migration in Norwich

A 30-minute call with someone who would actually work on it. No sales script, no obligation.

  • Projects typically launched within 4–8 weeks
  • No long-term contracts required
  • All team members UK-based
  • Dedicated account manager and development team
  • Transparent reporting with monthly performance metrics
  • Scalable from startup to enterprise

Or reach us directly

07707 771599admin@asionis.com

Leicester, United Kingdom