Period
to 4 December 2021

The table below looks at the prevalence of the term Reference Data in contract job vacancies advertised in the City of London. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Reference Data over the 6 months to 4 December 2021 with a comparison to the same period over the previous 2 years.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

Reference Data
Central London > City of London
6 months to
4 Dec 2021
Same period 2020 Same period 2019
Rank 166 116 213
Rank change year-on-year -50 +97 +28
Contract jobs citing Reference Data 15 6 6
As % of all contract jobs advertised in the City of London 0.37% 0.30% 0.10%
As % of the Miscellaneous category 1.03% 0.85% 0.35%
Number of daily rates quoted 14 4 5
10th Percentile £497 £590 £478
25th Percentile £581 £613 £500
Median daily rate (50th Percentile) £650 £650 £550
Median % change year-on-year - +18.18% -
75th Percentile £700 £675 £584
90th Percentile £795 " £624
Central London median daily rate £650 £650 £525
% change year-on-year - +23.81% -4.55%

Reference Data is in the Generic IT Skills category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in the City of London with a requirement for generic IT skills.

All Generic IT Skills
City of London
Contract vacancies with a requirement for generic IT skills 1,459 710 1,737
As % of all contract IT jobs advertised in the City of London 36.28% 35.66% 30.08%
Number of daily rates quoted 1,110 507 1,344
10th Percentile £381 £325 £300
25th Percentile £488 £425 £413
Median daily rate (50th Percentile) £575 £525 £525
Median % change year-on-year +9.52% - -
75th Percentile £688 £638 £625
90th Percentile £788 £725 £700
Central London median daily rate £575 £525 £525
% change year-on-year +9.52% - -
Number of hourly rates quoted 22 22 23
10th Percentile £20.78 £14.03 £12.15
25th Percentile £32.61 £23.00 £13.01
Median hourly rate £38.00 £35.75 £20.83
Median % change year-on-year +6.29% +71.63% +8.21%
75th Percentile £58.94 £44.50 £23.34
90th Percentile £62.65 £47.58 £48.38
Central London median hourly rate £38.50 £33.75 £21.00
% change year-on-year +14.07% +60.71% +9.09%

Reference Data
Job Vacancy Trend in the City of London

Job postings citing Reference Data as a proportion of all IT jobs advertised in the City of London.

Job vacancy trend for Reference Data in the City of London

Reference Data
Contractor Daily Rate Trend in the City of London

3-month moving average daily rate quoted in jobs citing Reference Data in the City of London.

Daily rate trend for Reference Data in the City of London

Reference Data
Daily Rate Histogram in the City of London

Daily rate distribution for jobs citing Reference Data in the City of London over the 6 months to 4 December 2021.

Daily rate histogram for Reference Data in the City of London

Reference Data
Contractor Hourly Rate Trend in the City of London

3-month moving average hourly rates quoted in jobs citing Reference Data in the City of London.

Hourly rate trend for Reference Data in the City of London

For the 6 months to 4 December 2021, IT contractor jobs citing Reference Data also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all contract job ads across the City of London region with a requirement for Reference Data.

1 12 (80.00%) Agile Software Development
2 10 (66.67%) Finance
3 7 (46.67%) Java
3 7 (46.67%) SQL
4 6 (40.00%) TDD
5 5 (33.33%) React
5 5 (33.33%) Social Skills
6 4 (26.67%) Problem-Solving
6 4 (26.67%) Relational Database
6 4 (26.67%) Kafka
6 4 (26.67%) SQL Server
6 4 (26.67%) Investment Banking
6 4 (26.67%) Banking
6 4 (26.67%) JIRA
6 4 (26.67%) Oracle Coherence
7 3 (20.00%) QA
7 3 (20.00%) Business Analysis
7 3 (20.00%) Equities
7 3 (20.00%) Stakeholder Management
7 3 (20.00%) REST
7 3 (20.00%) Hazelcast
7 3 (20.00%) Infinispan
7 3 (20.00%) BDD
7 3 (20.00%) DevOps
7 3 (20.00%) API Design
7 3 (20.00%) Apache Ignite
8 2 (13.33%) Smart Order Routing
8 2 (13.33%) Serverless
8 2 (13.33%) Infrastructure Management
8 2 (13.33%) Low Latency

Reference Data
Co-occurring IT Skills in the City of London by Category

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

Application Platforms
1 4 (26.67%) Oracle Coherence
2 1 (6.67%) Confluence
Cloud Services
1 2 (13.33%) AWS
1 2 (13.33%) Azure
1 2 (13.33%) Serverless
Database & Business Intelligence
1 4 (26.67%) Relational Database
1 4 (26.67%) SQL Server
2 3 (20.00%) Apache Ignite
2 3 (20.00%) Hazelcast
2 3 (20.00%) Infinispan
3 2 (13.33%) Data Mining
4 1 (6.67%) Oracle Database
4 1 (6.67%) Oracle Database 11g
4 1 (6.67%) Oracle Database 12c
4 1 (6.67%) RDBMS
Development Applications
1 4 (26.67%) JIRA
2 1 (6.67%) IntelliJ
2 1 (6.67%) Jenkins
2 1 (6.67%) SonarQube
2 1 (6.67%) TeamCity
2 1 (6.67%) Visual Studio
General
1 10 (66.67%) Finance
2 5 (33.33%) Social Skills
3 4 (26.67%) Banking
3 4 (26.67%) Investment Banking
4 2 (13.33%) Analytical Skills
4 2 (13.33%) Financial Institution
Job Titles
1 5 (33.33%) Analyst
1 5 (33.33%) Developer
1 5 (33.33%) Java Developer
2 4 (26.67%) Business Analyst
3 2 (13.33%) Architect
3 2 (13.33%) Banking Analyst
3 2 (13.33%) Investment Banking Business Analyst
3 2 (13.33%) Investment Banking Java Developer
3 2 (13.33%) XML Analyst
4 1 (6.67%) Agile Project Manager
4 1 (6.67%) Equity Analyst
4 1 (6.67%) Exchange Architect
4 1 (6.67%) Oracle Specialist
4 1 (6.67%) Product Business Analyst
4 1 (6.67%) Project Manager
4 1 (6.67%) Senior UAT Analyst
4 1 (6.67%) Solutions Architect
4 1 (6.67%) Technical Architect
4 1 (6.67%) Test Analyst
4 1 (6.67%) UAT Test Analyst
Libraries, Frameworks & Software Standards
1 5 (33.33%) React
2 4 (26.67%) Kafka
3 3 (20.00%) REST
4 2 (13.33%) FIX Protocol
4 2 (13.33%) FpML
4 2 (13.33%) HTML
4 2 (13.33%) HTML5
4 2 (13.33%) Spring
4 2 (13.33%) Spring Boot
4 2 (13.33%) Web Services
4 2 (13.33%) XML
5 1 (6.67%) AngularJS
5 1 (6.67%) Spring Cloud
Miscellaneous
1 3 (20.00%) Equities
2 2 (13.33%) Fixed Income
2 2 (13.33%) SWIFT
3 1 (6.67%) Pricing Data
Operating Systems
1 2 (13.33%) Unix
2 1 (6.67%) Linux
Processes & Methodologies
1 12 (80.00%) Agile Software Development
2 6 (40.00%) TDD
3 4 (26.67%) Problem-Solving
4 3 (20.00%) API Design
4 3 (20.00%) BDD
4 3 (20.00%) Business Analysis
4 3 (20.00%) DevOps
4 3 (20.00%) Stakeholder Management
5 2 (13.33%) Computer Science
5 2 (13.33%) Continuous Integration
5 2 (13.33%) Data Analysis
5 2 (13.33%) Enterprise Architecture
5 2 (13.33%) Information Security
5 2 (13.33%) Microservices
5 2 (13.33%) Requirements Analysis
5 2 (13.33%) Risk Management
5 2 (13.33%) Scrum
5 2 (13.33%) SDLC
5 2 (13.33%) System Testing
5 2 (13.33%) Workflow
Programming Languages
1 7 (46.67%) Java
1 7 (46.67%) SQL
2 1 (6.67%) C
2 1 (6.67%) C#
2 1 (6.67%) Shell Script
Qualifications
1 2 (13.33%) Degree
2 1 (6.67%) Computer Science Degree
Quality Assurance & Compliance
1 3 (20.00%) QA
System Software
1 2 (13.33%) Docker
Systems Management
1 2 (13.33%) Kubernetes
2 1 (6.67%) ITRS Geneos
Vendors
1 1 (6.67%) Oracle