Period
to 14 June 2021

The following table provides summary statistics for contract job vacancies advertised in 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 14 June 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
England > London
6 months to
14 Jun 2021
Same period 2020 Same period 2019
Rank 98 96 90
Rank change year-on-year -2 -6 -35
Contract jobs citing Unix 681 474 1,145
As % of all contract jobs advertised in London 2.66% 2.62% 2.86%
As % of the Operating Systems category 18.88% 15.02% 15.75%
Number of daily rates quoted 470 317 764
10th Percentile £405 £350 £363
25th Percentile £463 £438 £438
Median daily rate (50th Percentile) £550 £525 £538
Median % change year-on-year +4.76% -2.33% +2.38%
75th Percentile £650 £638 £625
90th Percentile £700 £696 £700
England median daily rate £500 £488 £500
% change year-on-year +2.56% -2.50% -
Number of hourly rates quoted 9 2 4
10th Percentile " £36.88 "
25th Percentile £24.35 £37.81 £47.50
Median hourly rate £58.71 £41.25 £50.00
Median % change year-on-year +42.33% -17.50% +57.48%
75th Percentile £60.00 £45.31 £54.69
90th Percentile £62.00 £46.63 £58.63
England median hourly rate £39.50 £45.00 £35.00
% change year-on-year -12.22% +28.57% +7.69%

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 London with a requirement for operating system skills.

All Operating Systems
London
Contract vacancies with a requirement for operating system skills 3,607 3,156 7,271
As % of all contract IT jobs advertised in London 14.10% 17.43% 18.14%
Number of daily rates quoted 2,508 2,266 5,169
10th Percentile £288 £194 £180
25th Percentile £406 £351 £363
Median daily rate (50th Percentile) £500 £475 £480
Median % change year-on-year +5.26% -1.04% +1.05%
75th Percentile £600 £575 £588
90th Percentile £699 £650 £660
England median daily rate £450 £427 £445
% change year-on-year +5.39% -4.04% +1.71%
Number of hourly rates quoted 48 74 189
10th Percentile £14.93 £13.80 £13.00
25th Percentile £16.27 £18.00 £16.00
Median hourly rate £40.00 £23.50 £20.50
Median % change year-on-year +70.21% +14.63% +7.89%
75th Percentile £64.00 £47.22 £33.75
90th Percentile £68.30 £53.15 £51.09
England median hourly rate £17.75 £17.50 £17.16
% change year-on-year +1.43% +2.01% -1.97%

Unix
Job Vacancy Trend in London

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

Job vacancy trend for Unix in London

Unix
Contractor Daily Rate Trend in London

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

Daily rate trend for Unix in London

Unix
Daily Rate Histogram in London

Daily rate distribution for jobs citing Unix in London over the 6 months to 14 June 2021.

Daily rate histogram for Unix in London

Unix
Contractor Hourly Rate Trend in London

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

Hourly rate trend for Unix in London

Unix
Hourly Rate Histogram in London

Hourly rate distribution of jobs citing Unix in London over the 6 months to 14 June 2021.

Hourly rate histogram for Unix in London

Unix
Contract Job Locations in London

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing Unix within the London region over the 6 months to 14 June 2021. 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
Job
Vacancies
Central London -28 63 £550 +10.00% 41
West London +28 27 £359 -24.47% 17
East London -6 4 £433 -4.63% 5
South London +19 3 £575 +15.00% 5
Unix
England

For the 6 months to 14 June 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 London region with a requirement for Unix.

1 388 (56.98%) Linux
2 268 (39.35%) Java
3 212 (31.13%) Finance
4 209 (30.69%) Agile Software Development
5 199 (29.22%) SQL
6 190 (27.90%) Python
7 160 (23.49%) Git (software)
8 151 (22.17%) Windows
8 151 (22.17%) Banking
9 149 (21.88%) Oracle
10 148 (21.73%) Social Skills
11 131 (19.24%) Spring
12 109 (16.01%) Docker
13 107 (15.71%) Kubernetes
14 105 (15.42%) DevOps
15 103 (15.12%) TDD
16 98 (14.39%) Relational Database
17 94 (13.80%) Front Office
18 88 (12.92%) Jenkins
19 87 (12.78%) REST
20 84 (12.33%) Test Automation
20 84 (12.33%) Shell Script
20 84 (12.33%) Investment Banking
21 79 (11.60%) AWS
21 79 (11.60%) Ansible
22 70 (10.28%) Azure
23 69 (10.13%) JavaScript
24 67 (9.84%) Middleware
24 67 (9.84%) Microservices
25 64 (9.40%) SQL Server

Unix
Co-occurring IT Skills in 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 46 (6.75%) Mule
2 32 (4.70%) Confluence
3 24 (3.52%) Apache
4 23 (3.38%) JBoss
4 23 (3.38%) Tomcat
5 20 (2.94%) WebLogic
6 19 (2.79%) Apache Spark
7 15 (2.20%) WebSphere
8 14 (2.06%) Oracle Coherence
8 14 (2.06%) Red Hat Fuse
9 13 (1.91%) Oracle SOA Suite
10 12 (1.76%) CMS
11 10 (1.47%) Jetty
11 10 (1.47%) WebLogic Portal
12 9 (1.32%) IIS
13 8 (1.17%) Cloud Foundry
14 7 (1.03%) SharePoint
15 6 (0.88%) nginx
16 5 (0.73%) Apache Airflow
16 5 (0.73%) Elasticsearch
Applications
1 6 (0.88%) Microsoft Excel
2 5 (0.73%) Microsoft Office
3 4 (0.59%) MS Visio
4 1 (0.15%) Microsoft PowerPoint
Business Applications
1 15 (2.20%) Oracle EBS
2 11 (1.62%) Oracle Applications
3 9 (1.32%) Oracle EBS R12
4 8 (1.17%) RMDS
5 6 (0.88%) ION MarketView
5 6 (0.88%) Oracle Payables
5 6 (0.88%) Oracle Receivables
6 3 (0.44%) IntelliMatch
6 3 (0.44%) Remedy ITSM
7 2 (0.29%) Actimize
7 2 (0.29%) Eikon
7 2 (0.29%) OneSumX
7 2 (0.29%) R3 Corda
7 2 (0.29%) Refinitiv Enterprise Platform
7 2 (0.29%) Sentinel
8 1 (0.15%) BusinessWorks
8 1 (0.15%) Oracle Internet Expenses
8 1 (0.15%) Oracle iProcurement
8 1 (0.15%) Salerio
8 1 (0.15%) SAP Hybris
Cloud Services
1 79 (11.60%) AWS
2 70 (10.28%) Azure
3 42 (6.17%) GitHub
4 29 (4.26%) GCP
5 27 (3.96%) IaaS
6 16 (2.35%) Cloud Computing
7 13 (1.91%) OpenShift
8 10 (1.47%) NuGet
8 10 (1.47%) SaaS
9 9 (1.32%) Amazon S3
10 8 (1.17%) Microsoft 365
10 8 (1.17%) PaaS
11 7 (1.03%) AWS CloudFormation
11 7 (1.03%) Serverless
12 6 (0.88%) Amazon EMR
12 6 (0.88%) AWS Lambda
12 6 (0.88%) npm
13 5 (0.73%) Power Platform
14 4 (0.59%) Amazon EKS
14 4 (0.59%) AWS CodePipeline
Communications & Networking
1 30 (4.41%) HTTP
2 29 (4.26%) Firewall
3 22 (3.23%) TCP/IP
4 18 (2.64%) DNS
5 16 (2.35%) SAN
5 16 (2.35%) Wireshark
6 13 (1.91%) HTTPS
6 13 (1.91%) Internet
7 12 (1.76%) DHCP
8 11 (1.62%) Kerberos
8 11 (1.62%) Network Security
9 9 (1.32%) Intrusion Detection
9 9 (1.32%) NAS
9 9 (1.32%) tcpdump
10 8 (1.17%) Multicast
11 6 (0.88%) Broadband
11 6 (0.88%) WAN
12 5 (0.73%) SSH
12 5 (0.73%) SSL
13 4 (0.59%) LAN
Database & Business Intelligence
1 98 (14.39%) Relational Database
2 64 (9.40%) SQL Server
3 40 (5.87%) MySQL
4 32 (4.70%) NoSQL
4 32 (4.70%) Oracle Database
5 29 (4.26%) Hadoop
6 28 (4.11%) MongoDB
7 22 (3.23%) Big Data
8 19 (2.79%) PostgreSQL
9 17 (2.50%) Data Warehouse
10 16 (2.35%) Redis
11 15 (2.20%) Apache Hive
11 15 (2.20%) Oracle Database 12c
12 13 (1.91%) Apache Cassandra
12 13 (1.91%) DB2
13 12 (1.76%) Oracle Database 11g
14 10 (1.47%) Hazelcast
14 10 (1.47%) Oracle BI EE
14 10 (1.47%) RDBMS
15 9 (1.32%) KDB
Development Applications
1 160 (23.49%) Git (software)
2 88 (12.92%) Jenkins
3 58 (8.52%) JIRA
4 55 (8.08%) Maven
5 47 (6.90%) Subversion
6 36 (5.29%) TeamCity
7 34 (4.99%) JUnit
8 26 (3.82%) Mockito
9 23 (3.38%) Cucumber
10 20 (2.94%) Artifactory
11 17 (2.50%) Bitbucket
11 17 (2.50%) GitLab
12 14 (2.06%) jMock
13 12 (1.76%) Gatling
14 11 (1.62%) ProC
15 10 (1.47%) Atlassian Bamboo
15 10 (1.47%) Visual Studio
16 8 (1.17%) FishEye
16 8 (1.17%) Hudson
16 8 (1.17%) Jasmine
General
1 212 (31.13%) Finance
2 151 (22.17%) Banking
3 148 (21.73%) Social Skills
4 94 (13.80%) Front Office
5 84 (12.33%) Investment Banking
6 55 (8.08%) Analytical Skills
7 33 (4.85%) Telecoms
8 28 (4.11%) Back Office
9 22 (3.23%) Public Sector
10 20 (2.94%) Marketing
11 12 (1.76%) Financial Institution
12 11 (1.62%) Electronics
12 11 (1.62%) Manufacturing
13 9 (1.32%) Local Government
14 7 (1.03%) Documentation Skills
14 7 (1.03%) Presentation Skills
14 7 (1.03%) Prime Brokerage
15 5 (0.73%) Organisational Skills
16 4 (0.59%) Influencing Skills
17 3 (0.44%) French Language
Job Titles
1 298 (43.76%) Developer
2 132 (19.38%) Java Developer
3 60 (8.81%) Analyst
4 54 (7.93%) Senior Developer
5 38 (5.58%) Integration Developer
6 37 (5.43%) Applications Support
7 31 (4.55%) Senior Java Developer
8 30 (4.41%) C++ Developer
9 26 (3.82%) Consultant
9 26 (3.82%) DevOps Engineer
10 25 (3.67%) Support Analyst
11 24 (3.52%) Front End Developer (Client-Side Developer)
12 23 (3.38%) Administrator
12 23 (3.38%) DBA
13 20 (2.94%) Oracle DBA
14 17 (2.50%) Architect
15 16 (2.35%) Data Engineer
15 16 (2.35%) Full Stack Developer
16 15 (2.20%) Unix Engineer
17 14 (2.06%) Applications Support Analyst
Libraries, Frameworks & Software Standards
1 131 (19.24%) Spring
2 87 (12.78%) REST
3 67 (9.84%) Middleware
4 62 (9.10%) HTML
5 52 (7.64%) CSS
6 50 (7.34%) Web Services
7 47 (6.90%) XML
8 46 (6.75%) Hibernate
9 43 (6.31%) FIX Protocol
10 42 (6.17%) Apache Camel
11 41 (6.02%) RESTful
12 36 (5.29%) Kafka
12 36 (5.29%) Spring Integration
13 32 (4.70%) J2EE
13 32 (4.70%) Spring Boot
14 31 (4.55%) AngularJS
14 31 (4.55%) JSON
14 31 (4.55%) JTA
14 31 (4.55%) JTS
15 26 (3.82%) JMS
Miscellaneous
1 42 (6.17%) Equities
2 36 (5.29%) Management Information System
3 33 (4.85%) Foreign Exchange (FX)
4 32 (4.70%) Clustering
5 30 (4.41%) Fixed Income
6 27 (3.96%) SWIFT
7 22 (3.23%) Data Structures
7 22 (3.23%) Derivative
8 19 (2.79%) Linux Command Line
9 18 (2.64%) Data Centre
10 17 (2.50%) Algorithms
11 9 (1.32%) Client/Server
11 9 (1.32%) Enterprise Software
11 9 (1.32%) Reference Data
11 9 (1.32%) User Experience
11 9 (1.32%) Virtual Team
12 7 (1.03%) Market Risk
12 7 (1.03%) Public Cloud
12 7 (1.03%) Self-Motivation
13 6 (0.88%) Credit Risk
Operating Systems
1 388 (56.98%) Linux
2 151 (22.17%) Windows
3 45 (6.61%) Red Hat Enterprise Linux
4 26 (3.82%) Mac OS X
5 18 (2.64%) Solaris
6 17 (2.50%) AIX
7 13 (1.91%) Mac OS
8 10 (1.47%) Windows Server
9 7 (1.03%) Windows Server 2016
9 7 (1.03%) Windows Server 2019
10 4 (0.59%) Windows 10
10 4 (0.59%) Windows Server 2012
11 3 (0.44%) SUSE
11 3 (0.44%) Windows Server 2008
12 2 (0.29%) Android
12 2 (0.29%) CentOS
12 2 (0.29%) VMS
13 1 (0.15%) Apple iOS
13 1 (0.15%) Kali Linux
13 1 (0.15%) Oracle Linux
Processes & Methodologies
1 209 (30.69%) Agile Software Development
2 105 (15.42%) DevOps
3 103 (15.12%) TDD
4 84 (12.33%) Test Automation
5 67 (9.84%) Microservices
6 63 (9.25%) BDD
7 62 (9.10%) Software Engineering
8 57 (8.37%) Scrum
9 53 (7.78%) Problem-Solving
10 51 (7.49%) Continuous Integration
11 49 (7.20%) Configuration Management
12 45 (6.61%) Electronic Trading
12 45 (6.61%) Migration
13 42 (6.17%) High Availability
13 42 (6.17%) Performance Tuning
14 41 (6.02%) Project Management
15 40 (5.87%) Continuous Deployment
16 38 (5.58%) Unit Testing
17 37 (5.43%) Incident Management
18 34 (4.99%) Pair Programming
Programming Languages
1 268 (39.35%) Java
2 199 (29.22%) SQL
3 190 (27.90%) Python
4 84 (12.33%) Shell Script
5 69 (10.13%) JavaScript
6 53 (7.78%) Perl
7 48 (7.05%) C++
8 42 (6.17%) Java 8
9 39 (5.73%) PL/SQL
10 38 (5.58%) Bash Shell
11 31 (4.55%) PowerShell
12 30 (4.41%) C#
13 27 (3.96%) Ruby
14 26 (3.82%) C
15 20 (2.94%) Scala
16 12 (1.76%) PHP
16 12 (1.76%) VB
17 9 (1.32%) ES6
17 9 (1.32%) Go
17 9 (1.32%) Groovy
Qualifications
1 51 (7.49%) Degree
2 26 (3.82%) Security Cleared
3 21 (3.08%) SC Cleared
4 15 (2.20%) Computer Science Degree
5 8 (1.17%) CISSP
6 7 (1.03%) DV Cleared
6 7 (1.03%) GIAC
7 5 (0.73%) CISM
8 4 (0.59%) CEH
8 4 (0.59%) CISA
8 4 (0.59%) CREST Certified
8 4 (0.59%) GCFA
8 4 (0.59%) GCIH
9 3 (0.44%) Master's Degree
10 2 (0.29%) AWS Certification
10 2 (0.29%) CCNP
10 2 (0.29%) Cisco Certification
10 2 (0.29%) OCP
10 2 (0.29%) Oracle Certification
10 2 (0.29%) VCAP
Quality Assurance & Compliance
1 30 (4.41%) QA
2 13 (1.91%) Accessibility
2 13 (1.91%) SLA
3 11 (1.62%) Data Quality
4 7 (1.03%) ISO/IEC 27001
5 3 (0.44%) MiFID
5 3 (0.44%) PMO
5 3 (0.44%) SEPA
6 2 (0.29%) GDPR
6 2 (0.29%) ISO 15022
6 2 (0.29%) ISO 20022
6 2 (0.29%) Sarbanes-Oxley
6 2 (0.29%) WCAG
7 1 (0.15%) COREP
7 1 (0.15%) CRD IV
7 1 (0.15%) FINREP
7 1 (0.15%) FISMA
7 1 (0.15%) IFRS
7 1 (0.15%) IFRS 9
7 1 (0.15%) ISO/IEC 27005
System Software
1 109 (16.01%) Docker
2 33 (4.85%) Active Directory
3 27 (3.96%) VMware Infrastructure
4 11 (1.62%) Apache ZooKeeper
5 8 (1.17%) Oracle RAC
5 8 (1.17%) VMware ESXi
6 6 (0.88%) Veritas File System
7 5 (0.73%) GPFS
7 5 (0.73%) HDFS
7 5 (0.73%) NFS
7 5 (0.73%) PowerHA
8 4 (0.59%) BitLocker
9 2 (0.29%) Active Directory Lightweight Directory Services
9 2 (0.29%) Hyper-V
9 2 (0.29%) KVM
9 2 (0.29%) vCloud
9 2 (0.29%) Veritas Cluster Server
9 2 (0.29%) Veritas Volume Manager
9 2 (0.29%) VMware NSX
9 2 (0.29%) vSphere
Systems Management
1 107 (15.71%) Kubernetes
2 79 (11.60%) Ansible
3 48 (7.05%) Puppet
4 30 (4.41%) Terraform
5 27 (3.96%) Opscode Chef
6 16 (2.35%) Grafana
6 16 (2.35%) ITRS Geneos
7 15 (2.20%) Prometheus
8 13 (1.91%) Oracle RMAN
9 12 (1.76%) Control-M
10 8 (1.17%) BladeLogic
11 7 (1.03%) Istio
12 6 (0.88%) Red Hat Satellite
13 5 (0.73%) Active Directory Federation Services
13 5 (0.73%) EnCase
13 5 (0.73%) Failover Clustering
13 5 (0.73%) QRadar
13 5 (0.73%) Salt
14 4 (0.59%) FTK
14 4 (0.59%) Hadoop YARN
Vendors
1 149 (21.88%) Oracle
2 47 (6.90%) IBM
3 45 (6.61%) Red Hat
4 36 (5.29%) Microsoft
4 36 (5.29%) VMware
5 34 (4.99%) Google
5 34 (4.99%) Splunk
6 25 (3.67%) Sybase
7 18 (2.64%) Citrix
7 18 (2.64%) Murex
8 16 (2.35%) ServiceNow
9 15 (2.20%) SAP
9 15 (2.20%) TIBCO
10 13 (1.91%) Atlassian
10 13 (1.91%) Bloomberg
10 13 (1.91%) BMC
11 12 (1.76%) CyberArk
11 12 (1.76%) Reuters
11 12 (1.76%) SaltStack
12 11 (1.62%) AppDynamics