Castle Trust Bank Tech Stack

UK mortgage and savings bank focused on non-standard lending and buy-to-let investors

Banking London 201–500 employees Founded 2012 Public Company

Castle Trust Bank operates a lean, technology-enabled mortgage and savings platform built on Azure Synapse and Databricks, with active hiring across data, product, and operations. The pain-point list reveals infrastructure modernization pressure—strengthening technology foundations, optimizing the Azure data platform, and expanding digital capabilities—while maintaining complex lending workflows for buy-to-let and bridging products. The small but senior-weighted hiring cohort (8 roles, mix of lead and manager hires) suggests targeted capability gaps rather than broad growth.

Tech Stack 21 technologies

Core StackPower BI Jira Trello Python Azure DevOps Databricks Intune Active Directory Azure AD Azure Synapse DAX Windows 11 PowerShell WSUS Freshservice

What Castle Trust Bank Is Building

◆Challenges

Implementing technology change
Expanding digital capabilities
Complex bridging and specialist btl lending
Non‑standard lending structures
Portfolio quality protection
Strengthening technology foundations
Enhancing colleague experience
Building high performing digital environment
Optimising azure data platform
Statutory accounts preparation

▲Active Projects

Build high-quality data pipelines and models
Develop reliable elt workflows
Maintain data pipelines
Completion accounts for acquisitions, disposals, or group restructurings
Statutory accounts for bank and group entities
Root cause analysis framework implementation
Complaints mi reporting
Group complaints forum leadership

Hiring Activity

Accelerating8 roles · 8 in 30d

Department

Finance

Ops

Support

Data

Product

Seniority

Mid

Senior

Junior

Lead

Manager

Notable leadership hires: Head of Underwriting

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About Castle Trust Bank

Castle Trust Bank is a UK-registered public bank founded in 2012, headquartered in London. The bank specializes in mortgages and savings products, with particular focus on non-standard lending for experienced buy-to-let investors and bridging finance. Operating with minimal branch overhead, the bank redirects savings proceeds into lending solutions. The product suite includes savings accounts (with FSCS protection), mortgages, buy-to-let loans, bridging finance, development loans, and consumer finance through its Omni Capital subsidiary. The organization runs active data engineering and financial accounting workstreams alongside mortgage underwriting and compliance operations.

HeadquartersLondon

Company Size201–500 employees

Founded2012

Frequently Asked Questions

What tech stack does Castle Trust Bank use?

Primary stack: Power BI, Azure Synapse, Databricks, Python, Jira, Azure DevOps. Infrastructure: Azure AD, Active Directory, Intune, Windows 11. No publicly announced adopts or replacements in recent months.

What is Castle Trust Bank working on?

Focus areas: building data pipelines and ETL workflows, maintaining data integrity, completing acquisition and restructuring accounting, implementing root cause analysis frameworks, and strengthening Azure data platform performance. Internal challenges include technology modernization and expanding digital capabilities.

How this profile is built

Castle Trust Bank's technology stack, projects, and hiring signals are inferred from public hiring and company data — career pages, public listings, and company web presence — then clustered and de-duplicated. Figures are estimates that refresh over time. Read our full methodology →

This is not an official vendor or customer list. It is a technology-adoption signal inferred from public data, intended for B2B research.