Period
to 12 April 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 12 April 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
12 Apr 2021
Same period 2020 Same period 2019
Rank 90 108 78
Rank change year-on-year +18 -30 -29
Contract jobs citing Unix 579 585 1,323
As % of all contract jobs advertised in London 2.69% 2.40% 3.10%
As % of the Operating Systems category 18.24% 13.60% 16.65%
Number of daily rates quoted 418 395 911
10th Percentile £406 £350 £363
25th Percentile £463 £418 £429
Median daily rate (50th Percentile) £575 £525 £525
Median % change year-on-year +9.52% - -
75th Percentile £675 £625 £625
90th Percentile £700 £700 £688
England median daily rate £500 £475 £500
% change year-on-year +5.26% -4.95% -0.05%
Number of hourly rates quoted 6 1 2
10th Percentile £24.35 " £48.13
25th Percentile £27.08 £42.50 £49.06
Median hourly rate £38.75 £45.00 £53.75
Median % change year-on-year -13.89% -16.28% +67.97%
75th Percentile £55.50 £47.50 £59.06
90th Percentile £60.00 " £60.38
England median hourly rate £41.00 £36.50 £32.00
% change year-on-year +12.33% +14.06% -

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 3,174 4,300 7,948
As % of all contract IT jobs advertised in London 14.72% 17.64% 18.65%
Number of daily rates quoted 2,255 3,040 5,612
10th Percentile £270 £163 £181
25th Percentile £400 £315 £363
Median daily rate (50th Percentile) £500 £450 £485
Median % change year-on-year +11.11% -7.22% +2.11%
75th Percentile £588 £575 £575
90th Percentile £675 £650 £650
England median daily rate £450 £425 £438
% change year-on-year +5.88% -2.86% -
Number of hourly rates quoted 39 133 201
10th Percentile £15.66 £14.40 £12.75
25th Percentile £22.63 £18.50 £16.00
Median hourly rate £42.00 £21.25 £20.00
Median % change year-on-year +97.65% +6.25% +6.95%
75th Percentile £62.50 £47.83 £27.50
90th Percentile £66.80 £63.75 £47.50
England median hourly rate £17.77 £17.25 £17.00
% change year-on-year +3.01% +1.47% +3.03%

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 12 April 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 12 April 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 12 April 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 +11 59 £575 +11.92% 42
West London +34 19 £550 +15.79% 11
East London +12 5 £403 -15.26% 4
South London +31 4 £513 +2.50%
Unix
England

For the 6 months to 12 April 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.

1 375 (64.77%) Linux
2 236 (40.76%) Java
3 168 (29.02%) Agile Software Development
4 167 (28.84%) Finance
5 161 (27.81%) Python
6 153 (26.42%) SQL
7 139 (24.01%) Banking
7 139 (24.01%) Docker
8 133 (22.97%) Kubernetes
9 127 (21.93%) Git (software)
10 126 (21.76%) Spring
11 124 (21.42%) Windows
12 114 (19.69%) Oracle
13 105 (18.13%) Relational Database
14 101 (17.44%) Front Office
15 100 (17.27%) TDD
16 83 (14.34%) DevOps
17 78 (13.47%) Middleware
18 77 (13.30%) AWS
19 75 (12.95%) Test Automation
20 65 (11.23%) Azure
20 65 (11.23%) Shell Script
21 64 (11.05%) REST
22 63 (10.88%) Mule
22 63 (10.88%) Investment Banking
23 62 (10.71%) BDD
23 62 (10.71%) Jenkins
23 62 (10.71%) Ansible
23 62 (10.71%) Apache Camel
24 61 (10.54%) Microservices

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 63 (10.88%) Mule
2 29 (5.01%) Confluence
3 25 (4.32%) JBoss
4 24 (4.15%) WebLogic
5 22 (3.80%) Tomcat
6 18 (3.11%) Apache
7 13 (2.25%) Red Hat Fuse
8 12 (2.07%) Cloud Foundry
9 11 (1.90%) Oracle SOA Suite
10 10 (1.73%) WebLogic Portal
10 10 (1.73%) WebSphere
11 9 (1.55%) CMS
12 8 (1.38%) Apache Spark
12 8 (1.38%) Jetty
13 7 (1.21%) Oracle Coherence
14 5 (0.86%) Elasticsearch
15 4 (0.69%) SAS
16 3 (0.52%) nginx
16 3 (0.52%) Oracle Workflow
17 2 (0.35%) Umbraco
Applications
1 11 (1.90%) Microsoft Excel
2 5 (0.86%) Microsoft Office
2 5 (0.86%) MS Visio
3 2 (0.35%) Microsoft PowerPoint
4 1 (0.17%) Microsoft Project
4 1 (0.17%) Spreadsheet
Business Applications
1 12 (2.07%) Oracle EBS
2 11 (1.90%) Oracle Applications
3 5 (0.86%) ION MarketView
4 3 (0.52%) IntelliMatch
5 2 (0.35%) BusinessWorks
5 2 (0.35%) Eikon
5 2 (0.35%) Oracle EBS R12
5 2 (0.35%) R3 Corda
5 2 (0.35%) Remedy ITSM
5 2 (0.35%) Salerio
5 2 (0.35%) Sentinel
6 1 (0.17%) Oracle Internet Expenses
6 1 (0.17%) Oracle iProcurement
6 1 (0.17%) Oracle Payables
6 1 (0.17%) Oracle Receivables
6 1 (0.17%) Refinitiv Enterprise Platform
6 1 (0.17%) RMDS
6 1 (0.17%) SAP Hybris
Cloud Services
1 77 (13.30%) AWS
2 65 (11.23%) Azure
3 31 (5.35%) GitHub
4 22 (3.80%) IaaS
5 20 (3.45%) Cloud Computing
6 18 (3.11%) GCP
7 17 (2.94%) OpenShift
8 10 (1.73%) NuGet
9 9 (1.55%) AWS CloudFormation
10 8 (1.38%) PaaS
11 7 (1.21%) SaaS
12 6 (1.04%) Microsoft 365
13 5 (0.86%) Azure Active Directory
14 4 (0.69%) Amazon EC2
14 4 (0.69%) Amazon S3
14 4 (0.69%) AWS Lambda
14 4 (0.69%) npm
14 4 (0.69%) Serverless
15 3 (0.52%) Amazon ECS
15 3 (0.52%) Amazon EKS
Communications & Networking
1 28 (4.84%) HTTP
2 19 (3.28%) Firewall
2 19 (3.28%) TCP/IP
3 18 (3.11%) DNS
4 17 (2.94%) HTTPS
5 15 (2.59%) DHCP
6 14 (2.42%) SAN
7 11 (1.90%) Internet
8 10 (1.73%) Intrusion Detection
9 9 (1.55%) Network Security
10 7 (1.21%) Kerberos
10 7 (1.21%) NAS
10 7 (1.21%) SSL
11 6 (1.04%) Broadband
11 6 (1.04%) LAN
11 6 (1.04%) WAN
11 6 (1.04%) Wireshark
12 4 (0.69%) Intranet
12 4 (0.69%) SSH
13 3 (0.52%) VoIP
Database & Business Intelligence
1 105 (18.13%) Relational Database
2 54 (9.33%) SQL Server
3 37 (6.39%) MySQL
4 32 (5.53%) NoSQL
5 29 (5.01%) Oracle Database
6 28 (4.84%) MongoDB
7 22 (3.80%) Hadoop
8 15 (2.59%) Big Data
8 15 (2.59%) PostgreSQL
9 13 (2.25%) Oracle Database 11g
9 13 (2.25%) Redis
10 12 (2.07%) Apache Hive
10 12 (2.07%) Data Warehouse
10 12 (2.07%) Oracle Database 12c
11 11 (1.90%) Apache Cassandra
11 11 (1.90%) DB2
11 11 (1.90%) Oracle Database 10g
12 10 (1.73%) Hazelcast
12 10 (1.73%) Oracle BI EE
13 8 (1.38%) Oracle Reports
Development Applications
1 127 (21.93%) Git (software)
2 62 (10.71%) Jenkins
3 52 (8.98%) JIRA
4 41 (7.08%) Subversion
5 37 (6.39%) Maven
6 30 (5.18%) JUnit
7 26 (4.49%) Bitbucket
7 26 (4.49%) Cucumber
8 22 (3.80%) Atlassian Bamboo
8 22 (3.80%) Mockito
9 20 (3.45%) Artifactory
10 19 (3.28%) TeamCity
11 15 (2.59%) GitLab
12 13 (2.25%) jMock
13 11 (1.90%) Visual Studio
14 10 (1.73%) FishEye
14 10 (1.73%) Gatling
14 10 (1.73%) Hudson
15 9 (1.55%) Eclipse
15 9 (1.55%) ProC
General
1 167 (28.84%) Finance
2 139 (24.01%) Banking
3 101 (17.44%) Front Office
4 63 (10.88%) Investment Banking
5 26 (4.49%) Telecoms
6 24 (4.15%) Back Office
7 23 (3.97%) Public Sector
8 19 (3.28%) Marketing
9 10 (1.73%) Electronics
9 10 (1.73%) Manufacturing
10 7 (1.21%) Financial Institution
11 4 (0.69%) Law
12 3 (0.52%) Retail
13 2 (0.35%) Advertising
13 2 (0.35%) Legal
13 2 (0.35%) Local Government
14 1 (0.17%) Games
14 1 (0.17%) Pharmaceutical
14 1 (0.17%) Publishing
14 1 (0.17%) Wholesale Banking
Job Titles
1 254 (43.87%) Developer
2 129 (22.28%) Java Developer
3 50 (8.64%) Senior Developer
4 48 (8.29%) Integration Developer
5 42 (7.25%) Analyst
6 34 (5.87%) Senior Java Developer
7 26 (4.49%) C++ Developer
8 23 (3.97%) Consultant
8 23 (3.97%) DevOps Engineer
9 22 (3.80%) Administrator
9 22 (3.80%) Front End Developer (Client-Side Developer)
10 21 (3.63%) DBA
11 20 (3.45%) Oracle DBA
12 17 (2.94%) Architect
13 13 (2.25%) Investment Banking C++ Developer
13 13 (2.25%) Java Middleware Developer
13 13 (2.25%) Middleware Developer
13 13 (2.25%) Unix Engineer
14 12 (2.07%) Data Engineer
14 12 (2.07%) Ruby Developer
Libraries, Frameworks & Software Standards
1 126 (21.76%) Spring
2 78 (13.47%) Middleware
3 64 (11.05%) REST
4 62 (10.71%) Apache Camel
5 59 (10.19%) Spring Integration
6 46 (7.94%) XML
7 44 (7.60%) Web Services
8 42 (7.25%) HTML
9 41 (7.08%) RESTful
10 37 (6.39%) Hibernate
10 37 (6.39%) Kafka
11 34 (5.87%) FIX Protocol
12 30 (5.18%) CSS
13 28 (4.84%) .NET
14 25 (4.32%) J2EE
14 25 (4.32%) JSON
14 25 (4.32%) Spring Boot
15 20 (3.45%) JTA
15 20 (3.45%) JTS
16 19 (3.28%) JMS
Miscellaneous
1 37 (6.39%) Management Information System
2 33 (5.70%) Analytical Skills
3 30 (5.18%) Fixed Income
4 28 (4.84%) Clustering
5 27 (4.66%) Equities
6 23 (3.97%) Foreign Exchange (FX)
7 22 (3.80%) SWIFT
8 16 (2.76%) Derivative
8 16 (2.76%) Linux Command Line
9 15 (2.59%) Algorithms
9 15 (2.59%) Data Centre
9 15 (2.59%) User Experience
10 13 (2.25%) Data Structures
11 11 (1.90%) Market Risk
12 10 (1.73%) Credit Risk
13 9 (1.55%) Enterprise Software
13 9 (1.55%) Grid Computing
14 8 (1.38%) Client/Server
15 7 (1.21%) Public Cloud
16 6 (1.04%) Mainframe
Operating Systems
1 375 (64.77%) Linux
2 124 (21.42%) Windows
3 37 (6.39%) Red Hat Enterprise Linux
4 25 (4.32%) Mac OS X
5 18 (3.11%) AIX
6 17 (2.94%) Windows Server
7 16 (2.76%) Solaris
8 13 (2.25%) Mac OS
9 7 (1.21%) VMS
10 6 (1.04%) Oracle Linux
10 6 (1.04%) Windows Server 2012
11 4 (0.69%) Windows Server 2008
11 4 (0.69%) Windows Server 2016
11 4 (0.69%) Windows Server 2019
12 3 (0.52%) SUSE
12 3 (0.52%) Windows 10
12 3 (0.52%) Windows XP
13 2 (0.35%) Apple iOS
13 2 (0.35%) CentOS
13 2 (0.35%) HPUX
Processes & Methodologies
1 168 (29.02%) Agile Software Development
2 100 (17.27%) TDD
3 83 (14.34%) DevOps
4 75 (12.95%) Test Automation
5 62 (10.71%) BDD
6 61 (10.54%) Microservices
7 58 (10.02%) Scrum
8 54 (9.33%) Software Engineering
9 51 (8.81%) Configuration Management
10 47 (8.12%) Continuous Integration
11 45 (7.77%) Problem-Solving
12 41 (7.08%) Migration
13 34 (5.87%) Continuous Delivery
14 32 (5.53%) Continuous Deployment
15 31 (5.35%) Performance Tuning
15 31 (5.35%) Risk Management
16 30 (5.18%) Kanban
16 30 (5.18%) Pair Programming
16 30 (5.18%) Project Management
17 29 (5.01%) Unit Testing
Programming Languages
1 236 (40.76%) Java
2 161 (27.81%) Python
3 153 (26.42%) SQL
4 65 (11.23%) Shell Script
5 59 (10.19%) JavaScript
6 47 (8.12%) Perl
7 39 (6.74%) PL/SQL
8 36 (6.22%) C++
9 35 (6.04%) PowerShell
10 31 (5.35%) Java 8
11 29 (5.01%) Bash Shell
11 29 (5.01%) Ruby
12 22 (3.80%) C#
13 21 (3.63%) Scala
14 19 (3.28%) C
15 13 (2.25%) Go
16 10 (1.73%) ES6
17 8 (1.38%) VB
18 6 (1.04%) VBScript
19 5 (0.86%) VBA
Qualifications
1 38 (6.56%) Degree
2 35 (6.04%) Security Cleared
3 30 (5.18%) SC Cleared
4 13 (2.25%) CISSP
5 10 (1.73%) CISM
6 8 (1.38%) GIAC
7 7 (1.21%) Cisco Certification
7 7 (1.21%) Computer Science Degree
7 7 (1.21%) GCIH
8 6 (1.04%) CREST Certified
8 6 (1.04%) DV Cleared
8 6 (1.04%) GCFA
9 5 (0.86%) CCNP
10 4 (0.69%) CEH
10 4 (0.69%) CISA
11 3 (0.52%) GCIA
12 2 (0.35%) CCNA
12 2 (0.35%) CCSP
12 2 (0.35%) GSEC
12 2 (0.35%) VCAP
Quality Assurance & Compliance
1 20 (3.45%) QA
2 11 (1.90%) SLA
3 8 (1.38%) NIST
4 7 (1.21%) Data Quality
5 6 (1.04%) COBIT
6 5 (0.86%) PMO
7 4 (0.69%) ISO/IEC 27001
8 3 (0.52%) COREP
8 3 (0.52%) ISO/IEC 27002 (supersedes ISO/IEC 17799)
8 3 (0.52%) WCAG
9 2 (0.35%) CRD IV
9 2 (0.35%) FINREP
9 2 (0.35%) GDPR
9 2 (0.35%) ISO 15022
9 2 (0.35%) ISO 20022
9 2 (0.35%) Sarbanes-Oxley
9 2 (0.35%) SEPA
10 1 (0.17%) GxP
10 1 (0.17%) ISO/IEC 27005
10 1 (0.17%) MiFID
System Software
1 139 (24.01%) Docker
2 32 (5.53%) Active Directory
3 19 (3.28%) VMware Infrastructure
4 10 (1.73%) Apache ZooKeeper
5 6 (1.04%) GPFS
5 6 (1.04%) HDFS
5 6 (1.04%) Oracle RAC
6 5 (0.86%) PowerHA
6 5 (0.86%) VMware ESXi
7 4 (0.69%) BitLocker
7 4 (0.69%) NFS
7 4 (0.69%) Veritas Cluster Server
7 4 (0.69%) Virtual Machines
7 4 (0.69%) VMware NSX
7 4 (0.69%) vSphere
8 3 (0.52%) Firmware
8 3 (0.52%) KVM
8 3 (0.52%) Samba
8 3 (0.52%) Veritas File System
8 3 (0.52%) Xen
Systems Management
1 133 (22.97%) Kubernetes
2 62 (10.71%) Ansible
3 47 (8.12%) Puppet
4 38 (6.56%) Terraform
5 32 (5.53%) Opscode Chef
6 19 (3.28%) Grafana
7 18 (3.11%) Prometheus
8 12 (2.07%) Oracle RMAN
8 12 (2.07%) Salt
9 8 (1.38%) Istio
10 6 (1.04%) BladeLogic
10 6 (1.04%) Control-M
10 6 (1.04%) ITRS Geneos
11 5 (0.86%) EnCase
12 4 (0.69%) Failover Clustering
12 4 (0.69%) FTK
12 4 (0.69%) Hadoop YARN
12 4 (0.69%) Nagios
12 4 (0.69%) Oracle Enterprise Manager
12 4 (0.69%) vRealize
Vendors
1 114 (19.69%) Oracle
2 35 (6.04%) Red Hat
3 32 (5.53%) Microsoft
3 32 (5.53%) VMware
4 31 (5.35%) IBM
5 30 (5.18%) Google
6 28 (4.84%) Splunk
7 24 (4.15%) Sybase
8 16 (2.76%) Atlassian
9 15 (2.59%) SAP
10 14 (2.42%) Bloomberg
10 14 (2.42%) ServiceNow
11 13 (2.25%) CyberArk
12 12 (2.07%) Cisco
12 12 (2.07%) Murex
13 11 (1.90%) AppDynamics
13 11 (1.90%) Informatica
14 10 (1.73%) BMC
14 10 (1.73%) HP
15 9 (1.55%) Veritas