Period
to 25 May 2020

The following table provides summary statistics for contract job vacancies advertised in the City of London with a requirement for Performance Optimisation skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Performance Optimisation over the 6 months to 25 May 2020 with a comparison to the same period in 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.

Performance Optimisation
Central London > City of London
6 months to
25 May 2020
Same period 2019 Same period 2018
Rank 144 211 233
Rank change year-on-year +67 +22 -27
Contract jobs citing Performance Optimisation 11 31 21
As % of all contract jobs advertised in the City of London 0.35% 0.48% 0.30%
As % of the Processes & Methodologies category 0.40% 0.54% 0.34%
Number of daily rates quoted 8 17 19
Median daily rate £675 £550 £493
Median daily rate % change year-on-year +22.73% +11.68% -10.45%
10th Percentile £447 £413 £388
90th Percentile £725 £740 £705
Central London median daily rate £575 £550 £500
% change year-on-year +4.55% +10.00% -7.41%
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
Central London median hourly rate - - -

Performance Optimisation is in the Processes and Methodologies 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 process or methodology skills.

All Process and Methodology Skills
City of London
Contract vacancies with a requirement for process or methodology skills 2,753 5,792 6,184
As % of all contract IT jobs advertised in the City of London 87.23% 89.53% 88.63%
Number of daily rates quoted 1,959 4,448 4,882
Median daily rate £513 £525 £502
Median daily rate % change year-on-year -2.38% +4.69% +0.30%
10th Percentile £331 £348 £327
90th Percentile £675 £675 £688
Central London median daily rate £500 £525 £500
% change year-on-year -4.76% +5.00% +5.26%
Number of hourly rates quoted 61 60 98
Median hourly rate £27.50 £21.32 £18.85
Median hourly rate % change year-on-year +28.97% +13.12% +0.80%
10th Percentile £12.42 £11.25 £12.29
90th Percentile £52.25 £56.50 £38.48
Median hourly rate £35.00 £21.34 £20.00
% change year-on-year +64.01% +6.70% +17.92%

Performance Optimisation
Job Vacancy Trend in the City of London

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

Job vacancy trend for Performance Optimisation in the City of London

Performance Optimisation
Contractor Daily Rate Trend in the City of London

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

Daily rate trend for Performance Optimisation in the City of London

Performance Optimisation
Daily Rate Histogram in the City of London

Daily rate distribution for jobs citing Performance Optimisation in the City of London over the 6 months to 25 May 2020.

Daily rate histogram for Performance Optimisation in the City of London

For the 6 months to 25 May 2020, IT contractor jobs citing Performance Optimisation 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 Performance Optimisation.

1 9 (81.82%) Python
2 8 (72.73%) Java
3 7 (63.64%) Finance
4 6 (54.55%) Agile Software Development
4 6 (54.55%) SQL
5 5 (45.45%) Spring
5 5 (45.45%) Hadoop
5 5 (45.45%) Apache Spark
6 4 (36.36%) Performance Tuning
6 4 (36.36%) Risk Management
6 4 (36.36%) JIRA
6 4 (36.36%) Unix
6 4 (36.36%) OOP
6 4 (36.36%) OO
7 3 (27.27%) Linux
7 3 (27.27%) SQL Server
7 3 (27.27%) Retail Banking
7 3 (27.27%) Computer Science
7 3 (27.27%) Software Engineering
7 3 (27.27%) TDD
7 3 (27.27%) Analytics
7 3 (27.27%) HDFS
7 3 (27.27%) DevOps
7 3 (27.27%) R
7 3 (27.27%) HBase
7 3 (27.27%) Jenkins
7 3 (27.27%) Performance Testing
7 3 (27.27%) Scala
7 3 (27.27%) Hadoop YARN
7 3 (27.27%) Functional Programming

Performance Optimisation
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 5 (45.45%) Apache Spark
2 2 (18.18%) Apache
3 1 (9.09%) SugarCRM
Cloud Services
1 2 (18.18%) AWS
1 2 (18.18%) Cloud Computing
Communications & Networking
1 1 (9.09%) HTTP
1 1 (9.09%) SSL
Database & Business Intelligence
1 5 (45.45%) Hadoop
2 3 (27.27%) HBase
2 3 (27.27%) SQL Server
3 2 (18.18%) Big Data
3 2 (18.18%) Parquet
3 2 (18.18%) Relational Database
4 1 (9.09%) MariaDB
4 1 (9.09%) MongoDB
4 1 (9.09%) MySQL
4 1 (9.09%) NoSQL
4 1 (9.09%) RDBMS
Development Applications
1 4 (36.36%) JIRA
2 3 (27.27%) Jenkins
2 3 (27.27%) Travis CI
3 2 (18.18%) Maven
4 1 (9.09%) Team Foundation Server
General
1 7 (63.64%) Finance
2 3 (27.27%) Retail Banking
3 2 (18.18%) Banking
3 2 (18.18%) Front Office
3 2 (18.18%) Investment Banking
3 2 (18.18%) Retail
4 1 (9.09%) Law
4 1 (9.09%) Marketing
Job Titles
1 9 (81.82%) Developer
2 6 (54.55%) Java Developer
3 3 (27.27%) Hadoop Developer
3 3 (27.27%) Java Hadoop Developer
4 2 (18.18%) Quantitative Developer
5 1 (9.09%) Architect
5 1 (9.09%) Cloud Architect
5 1 (9.09%) Cloud Developer
5 1 (9.09%) Lead Architect
5 1 (9.09%) Lead Cloud Architect
5 1 (9.09%) Lead Developer
5 1 (9.09%) Python Developer
5 1 (9.09%) Salesforce Architect
5 1 (9.09%) Salesforce Developer
5 1 (9.09%) Technical Leader
Libraries, Frameworks & Software Standards
1 5 (45.45%) Spring
2 3 (27.27%) PySpark
3 2 (18.18%) Apache Avro
3 2 (18.18%) NumPy
4 1 (9.09%) .NET
4 1 (9.09%) Ajax
4 1 (9.09%) CSS
4 1 (9.09%) HTML
4 1 (9.09%) Java EE
4 1 (9.09%) jQuery
4 1 (9.09%) JSP
4 1 (9.09%) Pandas
4 1 (9.09%) REST
4 1 (9.09%) Servlets
4 1 (9.09%) SOAP
4 1 (9.09%) Vert.x
4 1 (9.09%) Web Services
4 1 (9.09%) XML
4 1 (9.09%) XSLT
Miscellaneous
1 3 (27.27%) Linux Command Line
2 2 (18.18%) Credit Risk
2 2 (18.18%) Derivative
2 2 (18.18%) Market Risk
3 1 (9.09%) Algorithms
3 1 (9.09%) Clustering
3 1 (9.09%) Data Structures
3 1 (9.09%) Management Information System
Operating Systems
1 4 (36.36%) Unix
2 3 (27.27%) Linux
Processes & Methodologies
1 6 (54.55%) Agile Software Development
2 4 (36.36%) OO
2 4 (36.36%) OOP
2 4 (36.36%) Performance Tuning
2 4 (36.36%) Risk Management
3 3 (27.27%) Analytics
3 3 (27.27%) Computer Science
3 3 (27.27%) DevOps
3 3 (27.27%) Functional Programming
3 3 (27.27%) Performance Testing
3 3 (27.27%) Software Engineering
3 3 (27.27%) TDD
4 2 (18.18%) Asset Management
4 2 (18.18%) Mathematics
4 2 (18.18%) Multithreading
4 2 (18.18%) Quantitative Analysis
4 2 (18.18%) Refactoring
4 2 (18.18%) SOA
4 2 (18.18%) Software Architecture
4 2 (18.18%) Test Automation
Programming Languages
1 9 (81.82%) Python
2 8 (72.73%) Java
3 6 (54.55%) SQL
4 3 (27.27%) Java 8
4 3 (27.27%) R
4 3 (27.27%) Scala
5 2 (18.18%) PHP
6 1 (9.09%) C#
6 1 (9.09%) JavaScript
6 1 (9.09%) Ruby
6 1 (9.09%) VB.NET
Qualifications
1 1 (9.09%) Degree
1 1 (9.09%) Master's Degree
System Software
1 3 (27.27%) HDFS
2 1 (9.09%) Docker
Systems Management
1 3 (27.27%) Hadoop YARN
2 1 (9.09%) Ansible
2 1 (9.09%) Galera Cluster
2 1 (9.09%) Opscode Chef
2 1 (9.09%) Puppet
2 1 (9.09%) Terraform
Vendors
1 2 (18.18%) MapR
2 1 (9.09%) Netezza
2 1 (9.09%) Oracle
2 1 (9.09%) Salesforce Marketing Cloud
2 1 (9.09%) Salesforce.com