Inversion of Control Contracts

Inversion of Control (IoC)
UK

The table below provides summary statistics for contract job vacancies requiring Inversion of Control skills. It includes a benchmarking guide to the contractor rates offered in vacancies that cited Inversion of Control over the 6 months leading up to 1 May 2025, comparing them to the same period in the previous two years.

6 months to
1 May 2025
Same period 2024 Same period 2023
Rank 513 578 703
Rank change year-on-year +65 +125 +126
Contract jobs citing Inversion of Control 7 4 15
As % of all contract jobs advertised in the UK 0.024% 0.009% 0.025%
As % of the Processes & Methodologies category 0.026% 0.011% 0.028%
Number of daily rates quoted 5 4 12
10th Percentile - - £465
25th Percentile £500 £505 £492
Median daily rate (50th Percentile) £550 £510 £875
Median % change year-on-year +7.84% -41.71% +34.62%
75th Percentile £554 £524 £925
90th Percentile £597 £540 -
UK excluding London median daily rate £600 £550 £494
% change year-on-year +9.09% +11.39% -16.31%

All Process and Methodology Skills
UK

Inversion of Control falls under the Processes and Methodologies category. For comparison with the information above, the following table provides summary statistics for all contract job vacancies requiring process or methodology skills.

Contract vacancies with a requirement for process or methodology skills 26,594 37,597 53,655
As % of all contract IT jobs advertised in the UK 90.84% 86.31% 89.91%
Number of daily rates quoted 17,149 24,227 37,238
10th Percentile £308 £300 £325
25th Percentile £413 £413 £438
Median daily rate (50th Percentile) £520 £525 £550
Median % change year-on-year -0.95% -4.55% +4.76%
75th Percentile £630 £638 £650
90th Percentile £743 £750 £750
UK excluding London median daily rate £483 £500 £500
% change year-on-year -3.50% - +5.26%
Number of hourly rates quoted 1,071 2,443 1,746
10th Percentile £14.41 £12.75 £11.00
25th Percentile £18.21 £16.00 £16.25
Median hourly rate £29.00 £35.65 £37.30
Median % change year-on-year -18.65% -4.42% +49.20%
75th Percentile £60.38 £59.98 £65.00
90th Percentile £75.00 £72.50 £75.00
UK excluding London median hourly rate £27.50 £37.34 £36.00
% change year-on-year -26.35% +3.72% +80.00%

Inversion of Control
Job Vacancy Trend

Job postings citing Inversion of Control as a proportion of all IT jobs advertised.

Job vacancy trend for Inversion of Control in the UK

Inversion of Control
Contractor Daily Rate Trend

3-month moving average daily rate quoted in jobs citing Inversion of Control.

Daily rate trend for Inversion of Control in the UK

Inversion of Control
Contractor Hourly Rate Trend

3-month moving average hourly rates quoted in jobs citing Inversion of Control.

Hourly rate trend for Inversion of Control in the UK

Inversion of Control
Top 5 Contract Locations

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing Inversion of Control within the UK over the 6 months to 1 May 2025. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Jobs
England +62 6 £550 - 4
London - 5 £525 - 2
UK excluding London +63 1 £600 +9.09% 3
Work from Home +38 1 £550 +7.84% 3
South West - 1 £600 -

Inversion of Control
Co-occurring Skills and Capabilities by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same employment type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Cloud Services
1 6 (85.71%) Azure
2 5 (71.43%) Azure Data Factory
2 5 (71.43%) Azure Service Bus
3 1 (14.29%) Azure DevOps
Communications & Networking
1 1 (14.29%) Firewall
1 1 (14.29%) Intrusion Detection
Database & Business Intelligence
1 5 (71.43%) Relational Database
2 4 (57.14%) SQL Server
Development Applications
1 1 (14.29%) Git
1 1 (14.29%) Visual Studio
Job Titles
1 5 (71.43%) Data Engineer
1 5 (71.43%) Senior
1 5 (71.43%) Senior Data Engineer
2 3 (42.86%) Azure Engineer
2 3 (42.86%) Developer
3 2 (28.57%) Azure Data Engineer
3 2 (28.57%) Azure Developer
3 2 (28.57%) Senior Developer
4 1 (14.29%) .NET Developer
4 1 (14.29%) C# .NET Developer
4 1 (14.29%) C# Developer
4 1 (14.29%) C# WPF Developer
4 1 (14.29%) Database Engineer
4 1 (14.29%) Senior Database Engineer
4 1 (14.29%) WPF Developer
Libraries, Frameworks & Software Standards
1 6 (85.71%) .NET
1 6 (85.71%) .NET Core
1 6 (85.71%) .NET Framework
1 6 (85.71%) Entity Framework
1 6 (85.71%) WCF
1 6 (85.71%) Web Services
2 5 (71.43%) ASP.NET
2 5 (71.43%) ASP.NET MVC
2 5 (71.43%) ASP.NET Web API
2 5 (71.43%) Autofac
2 5 (71.43%) Dapper ORM
2 5 (71.43%) REST
2 5 (71.43%) StructureMap
3 1 (14.29%) Managed Extensibility Framework
3 1 (14.29%) RESTful
3 1 (14.29%) Silverlight
3 1 (14.29%) WPF
Miscellaneous
1 5 (71.43%) N-Tier
2 1 (14.29%) Security Operations Centre
Operating Systems
1 2 (28.57%) Windows
2 1 (14.29%) Linux
Processes & Methodologies
1 6 (85.71%) Design Patterns
1 6 (85.71%) MVC
1 6 (85.71%) Scrum
1 6 (85.71%) Unit Testing
2 5 (71.43%) Agile
2 5 (71.43%) BDD
2 5 (71.43%) CRM
2 5 (71.43%) Data Design
2 5 (71.43%) OOP
2 5 (71.43%) TDD
2 5 (71.43%) Web Development
3 4 (57.14%) Batch Processing
3 4 (57.14%) Change Data Capture
4 2 (28.57%) Data Integration
5 1 (14.29%) Change Control
5 1 (14.29%) Computer Science
5 1 (14.29%) Cybersecurity
5 1 (14.29%) Mathematics
5 1 (14.29%) Physics
5 1 (14.29%) Use Case
Programming Languages
1 6 (85.71%) C#
2 5 (71.43%) SQL
2 5 (71.43%) T-SQL
3 1 (14.29%) XAML
Qualifications
1 6 (85.71%) Degree
2 5 (71.43%) MCPD
2 5 (71.43%) MCSD
2 5 (71.43%) Microsoft Certification
3 1 (14.29%) A+ Certification
3 1 (14.29%) CISM
3 1 (14.29%) CISSP
3 1 (14.29%) CompTIA CySA+
3 1 (14.29%) CompTIA Security+
3 1 (14.29%) DV Cleared
3 1 (14.29%) Master's Degree
3 1 (14.29%) PhD
3 1 (14.29%) SANS
3 1 (14.29%) Security Cleared
Quality Assurance & Compliance
1 1 (14.29%) ISO/IEC 27001
1 1 (14.29%) NIST
1 1 (14.29%) NIST 800
Systems Management
1 1 (14.29%) OPNET
Vendors
1 2 (28.57%) Microsoft