Period
to 20 October 2021

The following table provides summary statistics for contract job vacancies advertised in the City of London with a requirement for Unix skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Unix over the 6 months to 20 October 2021 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.

Unix
Central London > City of London
6 months to
20 Oct 2021
Same period 2020 Same period 2019
Rank 110 54 84
Rank change year-on-year -56 +30 -18
Contract jobs citing Unix 69 64 171
As % of all contract jobs advertised in the City of London 1.77% 3.56% 2.88%
As % of the Operating Systems category 14.90% 20.78% 15.42%
Number of daily rates quoted 57 44 133
10th Percentile £454 £415 £375
25th Percentile £500 £461 £438
Median daily rate (50th Percentile) £600 £498 £540
Median % change year-on-year +20.60% -7.87% +2.86%
75th Percentile £688 £619 £591
90th Percentile £700 £690 £700
Central London median daily rate £600 £525 £513
% change year-on-year +14.29% +2.44% -2.38%
Number of hourly rates quoted 1 1 1
Median hourly rate £19.00 £37.50 £47.50
Median % change year-on-year -49.33% -21.05% +111.11%
Central London median hourly rate £19.00 £37.50 £47.50
% change year-on-year -49.33% -21.05% +111.11%

Unix is in the Operating Systems 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 operating system skills.

All Operating Systems
City of London
Contract vacancies with a requirement for operating system skills 463 308 1,109
As % of all contract IT jobs advertised in the City of London 11.91% 17.12% 18.70%
Number of daily rates quoted 372 246 874
10th Percentile £180 £200 £172
25th Percentile £363 £358 £355
Median daily rate (50th Percentile) £513 £475 £475
Median % change year-on-year +7.89% - -2.56%
75th Percentile £600 £570 £573
90th Percentile £700 £650 £650
Central London median daily rate £504 £475 £463
% change year-on-year +6.16% +2.70% -2.63%
Number of hourly rates quoted 8 3 34
10th Percentile £13.44 £20.50 £12.04
25th Percentile £13.81 £21.25 £14.06
Median hourly rate £14.25 £22.50 £20.50
Median % change year-on-year -36.67% +9.76% +9.63%
75th Percentile £15.72 £30.38 £21.44
90th Percentile £20.20 £35.10 £44.80
Central London median hourly rate £14.25 £20.00 £20.67
% change year-on-year -28.75% -3.22% +10.51%

Unix
Job Vacancy Trend in the City of London

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

Job vacancy trend for Unix in the City of London

Unix
Contractor Daily Rate Trend in the City of London

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

Daily rate trend for Unix in the City of London

Unix
Daily Rate Histogram in the City of London

Daily rate distribution for jobs citing Unix in the City of London over the 6 months to 20 October 2021.

Daily rate histogram for Unix in the City of London

Unix
Contractor Hourly Rate Trend in the City of London

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

Hourly rate trend for Unix in the City of London

For the 6 months to 20 October 2021, IT contractor jobs citing Unix 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 Unix.

1 39 (56.52%) Finance
2 38 (55.07%) Linux
3 30 (43.48%) Java
4 22 (31.88%) Agile Software Development
5 20 (28.99%) SQL
5 20 (28.99%) Docker
6 17 (24.64%) DevOps
6 17 (24.64%) Kubernetes
6 17 (24.64%) Oracle
6 17 (24.64%) SQL Server
7 15 (21.74%) Banking
7 15 (21.74%) Social Skills
8 14 (20.29%) Python
9 12 (17.39%) Git (software)
9 12 (17.39%) Ansible
10 11 (15.94%) Microservices
10 11 (15.94%) Red Hat
11 10 (14.49%) Shell Script
11 10 (14.49%) Sybase
11 10 (14.49%) AWS
12 9 (13.04%) Subversion
12 9 (13.04%) Spring
12 9 (13.04%) Derivative
12 9 (13.04%) Analytical Skills
13 8 (11.59%) JIRA
13 8 (11.59%) Red Hat Enterprise Linux
13 8 (11.59%) Windows
14 7 (10.14%) Migration
14 7 (10.14%) Scrum
14 7 (10.14%) Solaris

Unix
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 7 (10.14%) Confluence
2 4 (5.80%) SharePoint
3 3 (4.35%) Apache
3 3 (4.35%) Apache Spark
3 3 (4.35%) CMS
3 3 (4.35%) IIS
3 3 (4.35%) JBoss
3 3 (4.35%) WebLogic
4 1 (1.45%) Appian
4 1 (1.45%) Elasticsearch
4 1 (1.45%) Oracle SOA Suite
4 1 (1.45%) SharePoint Server
Applications
1 1 (1.45%) Microsoft Excel
1 1 (1.45%) Microsoft Office
1 1 (1.45%) Microsoft PowerPoint
1 1 (1.45%) MS Visio
Business Applications
1 1 (1.45%) ION MarketView
1 1 (1.45%) Temenos Globus
1 1 (1.45%) Temenos T24
1 1 (1.45%) TIBCO iProcess
Cloud Services
1 10 (14.49%) AWS
2 6 (8.70%) Azure
3 5 (7.25%) GCP
4 4 (5.80%) AWS CloudFormation
4 4 (5.80%) GitHub
4 4 (5.80%) PaaS
5 2 (2.90%) Amazon CloudWatch
5 2 (2.90%) IaaS
5 2 (2.90%) NuGet
5 2 (2.90%) SaaS
6 1 (1.45%) Amazon EMR
6 1 (1.45%) Amazon SQS
6 1 (1.45%) AWS CloudTrail
6 1 (1.45%) AWS Lambda
6 1 (1.45%) AWS Step Functions
6 1 (1.45%) Azure Active Directory
6 1 (1.45%) Kong
6 1 (1.45%) OpenShift
6 1 (1.45%) Serverless
6 1 (1.45%) Virtual Private Cloud
Communications & Networking
1 5 (7.25%) DNS
2 4 (5.80%) Kerberos
3 3 (4.35%) TCP/IP
4 2 (2.90%) DHCP
4 2 (2.90%) Firewall
4 2 (2.90%) LAN
4 2 (2.90%) WAN
5 1 (1.45%) Internet
5 1 (1.45%) Intranet
5 1 (1.45%) IPv4
5 1 (1.45%) IPv6
5 1 (1.45%) NAS
5 1 (1.45%) SAN
5 1 (1.45%) SIGTRAN
5 1 (1.45%) SMPP
5 1 (1.45%) SMS
5 1 (1.45%) SS7
5 1 (1.45%) Wireshark
Database & Business Intelligence
1 17 (24.64%) SQL Server
2 7 (10.14%) Relational Database
3 4 (5.80%) Big Data
3 4 (5.80%) MySQL
3 4 (5.80%) NoSQL
3 4 (5.80%) RDBMS
4 3 (4.35%) BigQuery
4 3 (4.35%) Bigtable
4 3 (4.35%) Oracle Database
4 3 (4.35%) Oracle Database 11g
4 3 (4.35%) Oracle Database 12c
4 3 (4.35%) Oracle Exadata
5 2 (2.90%) Data Mart
5 2 (2.90%) Data Warehouse
5 2 (2.90%) Hadoop
5 2 (2.90%) MongoDB
5 2 (2.90%) PostgreSQL
5 2 (2.90%) SQL Server Analysis Services
6 1 (1.45%) DB2
6 1 (1.45%) Star Schema
Development Applications
1 12 (17.39%) Git (software)
2 9 (13.04%) Subversion
3 8 (11.59%) JIRA
4 6 (8.70%) Jenkins
5 5 (7.25%) Maven
5 5 (7.25%) TeamCity
6 2 (2.90%) AutoIt
6 2 (2.90%) Bitbucket
6 2 (2.90%) Gradle
6 2 (2.90%) Selenium
6 2 (2.90%) SonarQube
6 2 (2.90%) Sonatype Nexus
7 1 (1.45%) Artifactory
7 1 (1.45%) Atlassian Bamboo
7 1 (1.45%) CMake
7 1 (1.45%) Cucumber
7 1 (1.45%) FishEye
7 1 (1.45%) Mockito
7 1 (1.45%) Robot Framework
7 1 (1.45%) Serena SBM
General
1 39 (56.52%) Finance
2 15 (21.74%) Banking
2 15 (21.74%) Social Skills
3 9 (13.04%) Analytical Skills
4 6 (8.70%) Front Office
4 6 (8.70%) Investment Banking
5 5 (7.25%) Financial Institution
6 4 (5.80%) Legal
7 3 (4.35%) Documentation Skills
7 3 (4.35%) International Banking
8 2 (2.90%) Advertising
8 2 (2.90%) Back Office
8 2 (2.90%) Telecoms
Job Titles
1 20 (28.99%) Developer
2 15 (21.74%) Java Developer
3 10 (14.49%) Analyst
4 8 (11.59%) Applications Support
5 7 (10.14%) Applications Support Analyst
5 7 (10.14%) Support Analyst
6 6 (8.70%) Architect
6 6 (8.70%) Payments Analyst
7 5 (7.25%) Administrator
7 5 (7.25%) Linux Administrator
8 3 (4.35%) Cloud Architect
8 3 (4.35%) Consultant
8 3 (4.35%) DBA
8 3 (4.35%) DevOps Engineer
8 3 (4.35%) Linux Engineer
8 3 (4.35%) Linux Systems Administrator
8 3 (4.35%) Oracle DBA
8 3 (4.35%) Senior Developer
8 3 (4.35%) Senior Java Developer
8 3 (4.35%) Systems Administrator
Libraries, Frameworks & Software Standards
1 9 (13.04%) Spring
2 7 (10.14%) XSLT
3 5 (7.25%) LDAP
3 5 (7.25%) REST
4 4 (5.80%) J2EE
4 4 (5.80%) Middleware
4 4 (5.80%) Web Services
4 4 (5.80%) XML
5 3 (4.35%) Hibernate
5 3 (4.35%) HTML
5 3 (4.35%) Java EE
5 3 (4.35%) JMS
5 3 (4.35%) Oracle GoldenGate
6 2 (2.90%) Apache Flex
6 2 (2.90%) FIX Protocol
6 2 (2.90%) Kafka
6 2 (2.90%) Murex MxML
6 2 (2.90%) RAML
6 2 (2.90%) RESTful
6 2 (2.90%) SailPoint
Miscellaneous
1 9 (13.04%) Derivative
2 7 (10.14%) SWIFT
3 6 (8.70%) Exotic Derivative
3 6 (8.70%) Foreign Exchange (FX)
4 4 (5.80%) Cloud Native
4 4 (5.80%) Equities
4 4 (5.80%) Fixed Income
4 4 (5.80%) Hedge funds
4 4 (5.80%) Linux Command Line
5 3 (4.35%) Data Centre
5 3 (4.35%) Data Structures
5 3 (4.35%) Equity Derivative
5 3 (4.35%) Replication
6 2 (2.90%) Management Information System
7 1 (1.45%) Algorithms
7 1 (1.45%) Clustering
7 1 (1.45%) Mainframe
7 1 (1.45%) PKI
7 1 (1.45%) Reference Data
7 1 (1.45%) Video\Live Streaming
Operating Systems
1 38 (55.07%) Linux
2 8 (11.59%) Red Hat Enterprise Linux
2 8 (11.59%) Windows
3 7 (10.14%) Solaris
4 1 (1.45%) Android
4 1 (1.45%) CentOS
4 1 (1.45%) Mac OS X
4 1 (1.45%) Mesosphere
4 1 (1.45%) Windows Server
4 1 (1.45%) Windows Server 2008
4 1 (1.45%) Windows Server 2012
4 1 (1.45%) Windows Server 2016
4 1 (1.45%) Windows Server 2019
Processes & Methodologies
1 22 (31.88%) Agile Software Development
2 17 (24.64%) DevOps
3 11 (15.94%) Microservices
4 7 (10.14%) Mathematics
4 7 (10.14%) Migration
4 7 (10.14%) Multithreading
4 7 (10.14%) Scrum
5 6 (8.70%) Disaster Recovery
5 6 (8.70%) Problem-Solving
5 6 (8.70%) Quantitative Finance
5 6 (8.70%) Storage Management
6 5 (7.25%) Computer Science
6 5 (7.25%) Electronic Trading
6 5 (7.25%) IT Strategy
6 5 (7.25%) Kernel Tuning
6 5 (7.25%) Performance Tuning
6 5 (7.25%) Root Cause Analysis
6 5 (7.25%) Test Automation
7 4 (5.80%) Data Protection
7 4 (5.80%) User Acceptance Testing
Programming Languages
1 30 (43.48%) Java
2 20 (28.99%) SQL
3 14 (20.29%) Python
4 10 (14.49%) Shell Script
5 7 (10.14%) C#
5 7 (10.14%) Perl
6 5 (7.25%) PL/SQL
7 3 (4.35%) Bash Shell
7 3 (4.35%) Groovy
7 3 (4.35%) JavaScript
7 3 (4.35%) PowerShell
8 2 (2.90%) C
9 1 (1.45%) BeanShell
9 1 (1.45%) Bourne shell
9 1 (1.45%) C++
9 1 (1.45%) Go
9 1 (1.45%) Java 8
9 1 (1.45%) Korn
Qualifications
1 4 (5.80%) Degree
2 3 (4.35%) OCP
2 3 (4.35%) Oracle Certification
3 1 (1.45%) Computer Science Degree
Quality Assurance & Compliance
1 4 (5.80%) GDPR
2 2 (2.90%) QA
3 1 (1.45%) Dodd-Frank
3 1 (1.45%) EMIR
3 1 (1.45%) MiFID
3 1 (1.45%) SEPA
System Software
1 20 (28.99%) Docker
2 7 (10.14%) Active Directory
3 4 (5.80%) VMware Infrastructure
4 3 (4.35%) Oracle RAC
4 3 (4.35%) VMware ESXi
5 2 (2.90%) NFS
5 2 (2.90%) Veritas File System
5 2 (2.90%) Veritas Volume Manager
6 1 (1.45%) Apache ZooKeeper
6 1 (1.45%) HDFS
6 1 (1.45%) RACF
6 1 (1.45%) vSphere
Systems Management
1 17 (24.64%) Kubernetes
2 12 (17.39%) Ansible
3 5 (7.25%) Red Hat Satellite
3 5 (7.25%) Terraform
4 4 (5.80%) QRadar
5 3 (4.35%) Control-M
5 3 (4.35%) Data Guard
5 3 (4.35%) EMC NetWorker
5 3 (4.35%) Netcool
5 3 (4.35%) Oracle RMAN
5 3 (4.35%) Tivoli
5 3 (4.35%) Tivoli Storage Manager
6 2 (2.90%) Failover Clustering
6 2 (2.90%) ITRS Geneos
6 2 (2.90%) Packer
6 2 (2.90%) Puppet
7 1 (1.45%) BladeLogic
7 1 (1.45%) Icinga
7 1 (1.45%) Microsoft Clustering
7 1 (1.45%) Opscode Chef
Vendors
1 17 (24.64%) Oracle
2 11 (15.94%) Red Hat
3 10 (14.49%) Sybase
4 7 (10.14%) CyberArk
4 7 (10.14%) Microsoft
5 6 (8.70%) EMC
5 6 (8.70%) Splunk
6 4 (5.80%) Qualys
6 4 (5.80%) VMware
7 3 (4.35%) Atlassian
7 3 (4.35%) BMC
7 3 (4.35%) Google
7 3 (4.35%) IBM
7 3 (4.35%) Infoblox
7 3 (4.35%) Murex
7 3 (4.35%) SaltStack
8 2 (2.90%) AppDynamics
8 2 (2.90%) ION Trading
9 1 (1.45%) jBASE
9 1 (1.45%) Serena