Period
to 4 March 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 4 March 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
4 Mar 2021
Same period 2020 Same period 2019
Rank 83 97 78
Rank change year-on-year +14 -19 -39
Contract jobs citing Unix 51 99 217
As % of all contract jobs advertised in the City of London 2.25% 2.14% 3.19%
As % of the Operating Systems category 14.96% 12.76% 16.00%
Number of daily rates quoted 45 75 156
Median daily rate £600 £525 £538
Median daily rate % change year-on-year +14.29% -2.33% +3.86%
10th Percentile £363 £338 £361
90th Percentile £700 £700 £650
Central London median daily rate £575 £525 £538
% change year-on-year +9.52% -2.33% +7.50%
Number of hourly rates quoted 0 0 1
Median hourly rate - - £22.50
Central London median hourly rate - - £22.50

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 341 776 1,356
As % of all contract IT jobs advertised in the City of London 15.02% 16.75% 19.95%
Number of daily rates quoted 267 598 1,019
Median daily rate £485 £450 £475
Median daily rate % change year-on-year +7.78% -5.26% -5.00%
10th Percentile £187 £150 £155
90th Percentile £688 £638 £638
Central London median daily rate £485 £430 £475
% change year-on-year +12.79% -9.47% -1.55%
Number of hourly rates quoted 4 24 37
Median hourly rate £22.75 £18.70 £18.70
Median hourly rate % change year-on-year +21.66% - +20.65%
10th Percentile £16.55 £12.50 £13.60
90th Percentile £23.00 £21.00 £31.70
Median hourly rate £22.75 £18.70 £18.75
% change year-on-year +21.66% -0.27% +7.76%

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 4 March 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 4 March 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 35 (68.63%) Linux
2 24 (47.06%) Finance
3 20 (39.22%) Banking
4 19 (37.25%) Java
5 18 (35.29%) SQL
6 15 (29.41%) Windows
7 14 (27.45%) Investment Banking
8 13 (25.49%) Oracle
8 13 (25.49%) Kubernetes
9 12 (23.53%) Docker
9 12 (23.53%) TDD
10 11 (21.57%) Spring
10 11 (21.57%) Front Office
11 10 (19.61%) Python
11 10 (19.61%) Maven
11 10 (19.61%) Market Risk
11 10 (19.61%) AWS
11 10 (19.61%) DevOps
12 9 (17.65%) Analytical Skills
12 9 (17.65%) Spring Boot
12 9 (17.65%) Problem-Solving
13 8 (15.69%) Grid Computing
13 8 (15.69%) Risk Management
13 8 (15.69%) PL/SQL
13 8 (15.69%) Data Analysis
13 8 (15.69%) Credit Risk
13 8 (15.69%) Visualisation
13 8 (15.69%) Low Latency
14 7 (13.73%) Oracle Database
14 7 (13.73%) Azure

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 2 (3.92%) Confluence
1 2 (3.92%) JBoss
1 2 (3.92%) SAS
2 1 (1.96%) Cloud Foundry
2 1 (1.96%) Mule
2 1 (1.96%) Oracle Workflow
2 1 (1.96%) Red Hat Fuse
2 1 (1.96%) Tomcat
2 1 (1.96%) WebLogic
Applications
1 4 (7.84%) Microsoft Excel
Business Applications
1 2 (3.92%) Eikon
1 2 (3.92%) ION MarketView
1 2 (3.92%) Salerio
2 1 (1.96%) IntelliMatch
2 1 (1.96%) Summit
Cloud Services
1 10 (19.61%) AWS
2 7 (13.73%) Azure
3 3 (5.88%) OpenShift
4 2 (3.92%) AWS CloudFormation
4 2 (3.92%) Azure Active Directory
5 1 (1.96%) Cloud Computing
5 1 (1.96%) IaaS
5 1 (1.96%) Microsoft 365
5 1 (1.96%) PaaS
Communications & Networking
1 6 (11.76%) Firewall
2 4 (7.84%) DHCP
2 4 (7.84%) DNS
3 3 (5.88%) LAN
3 3 (5.88%) SSL
3 3 (5.88%) VPN
3 3 (5.88%) WAN
4 2 (3.92%) HTTPS
4 2 (3.92%) Intrusion Detection
4 2 (3.92%) Wireshark
5 1 (1.96%) BIG-IP
5 1 (1.96%) Cisco ASA
5 1 (1.96%) Cisco IOS
5 1 (1.96%) Network Security
5 1 (1.96%) SAN
5 1 (1.96%) Sourcefire
5 1 (1.96%) TCP/IP
5 1 (1.96%) Unified Communications
5 1 (1.96%) VoIP
5 1 (1.96%) Wireless
Database & Business Intelligence
1 7 (13.73%) Oracle Database
2 4 (7.84%) SQL Server
3 2 (3.92%) Data Mart
3 2 (3.92%) Data Warehouse
3 2 (3.92%) MongoDB
3 2 (3.92%) MySQL
3 2 (3.92%) Relational Database
4 1 (1.96%) Amazon Redshift
4 1 (1.96%) Apache Hive
4 1 (1.96%) Base SAS
4 1 (1.96%) Big Data
4 1 (1.96%) Geospatial Data
4 1 (1.96%) Hadoop
4 1 (1.96%) HBase
4 1 (1.96%) NoSQL
4 1 (1.96%) Oracle Database 11g
4 1 (1.96%) Pentaho
4 1 (1.96%) SAS Data Integration Studio
4 1 (1.96%) SQL Server Integration Services
4 1 (1.96%) SQL Server Reporting Services
Development Applications
1 10 (19.61%) Maven
2 4 (7.84%) Bitbucket
2 4 (7.84%) Git (software)
2 4 (7.84%) Jenkins
3 3 (5.88%) Oracle APEX
4 2 (3.92%) JIRA
4 2 (3.92%) JUnit
4 2 (3.92%) Octopus Deploy
5 1 (1.96%) Atlassian Bamboo
5 1 (1.96%) CA Gen
5 1 (1.96%) Cucumber
5 1 (1.96%) Eclipse
5 1 (1.96%) FishEye
5 1 (1.96%) GitLab
5 1 (1.96%) Hudson
5 1 (1.96%) IntelliJ
5 1 (1.96%) jMock
5 1 (1.96%) Subversion
General
1 24 (47.06%) Finance
2 20 (39.22%) Banking
3 14 (27.45%) Investment Banking
4 11 (21.57%) Front Office
5 4 (7.84%) Back Office
6 1 (1.96%) Public Sector
6 1 (1.96%) Telecoms
Job Titles
1 16 (31.37%) Developer
2 10 (19.61%) Java Developer
3 9 (17.65%) Senior Developer
3 9 (17.65%) Senior Java Developer
4 6 (11.76%) Analyst
4 6 (11.76%) DBA
4 6 (11.76%) Oracle DBA
5 4 (7.84%) Automation Engineer
5 4 (7.84%) DevOps Engineer
6 3 (5.88%) Database Engineer
6 3 (5.88%) Development DBA
6 3 (5.88%) Development Engineer
6 3 (5.88%) Information Analyst
6 3 (5.88%) Information Security Analyst
6 3 (5.88%) Oracle Database Engineer
6 3 (5.88%) Oracle Development DBA
6 3 (5.88%) Security Analyst
7 2 (3.92%) Software Developer
7 2 (3.92%) Unix Engineer
7 2 (3.92%) Unix Scripting Engineer
Libraries, Frameworks & Software Standards
1 11 (21.57%) Spring
2 9 (17.65%) Spring Boot
3 3 (5.88%) .NET
3 3 (5.88%) Middleware
4 2 (3.92%) Elastic Stack
4 2 (3.92%) J2EE
4 2 (3.92%) Kafka
4 2 (3.92%) MSMQ
4 2 (3.92%) Regular Expression
4 2 (3.92%) REST
4 2 (3.92%) XML
4 2 (3.92%) YAML
5 1 (1.96%) AngularJS
5 1 (1.96%) Apache Camel
5 1 (1.96%) D3.js
5 1 (1.96%) Flask
5 1 (1.96%) JTA
5 1 (1.96%) Node.js
5 1 (1.96%) Spring Integration
5 1 (1.96%) Swagger
Miscellaneous
1 10 (19.61%) Market Risk
2 9 (17.65%) Analytical Skills
3 8 (15.69%) Credit Risk
3 8 (15.69%) Grid Computing
4 4 (7.84%) Fixed Income
5 3 (5.88%) Cyber Kill Chain
5 3 (5.88%) SWIFT
6 2 (3.92%) Derivative
6 2 (3.92%) Management Information System
6 2 (3.92%) Robotics
7 1 (1.96%) Algorithms
7 1 (1.96%) Blog
7 1 (1.96%) Hybrid Cloud
7 1 (1.96%) Linux Command Line
7 1 (1.96%) Public Cloud
7 1 (1.96%) RIA
7 1 (1.96%) Self-Motivation
Operating Systems
1 35 (68.63%) Linux
2 15 (29.41%) Windows
3 5 (9.80%) Windows Server
4 3 (5.88%) Solaris
4 3 (5.88%) Windows XP
5 2 (3.92%) Red Hat Enterprise Linux
5 2 (3.92%) Windows 10
5 2 (3.92%) Windows Server 2012
6 1 (1.96%) Mac OS
6 1 (1.96%) VMS
Processes & Methodologies
1 12 (23.53%) TDD
2 10 (19.61%) DevOps
3 9 (17.65%) Problem-Solving
4 8 (15.69%) Data Analysis
4 8 (15.69%) Low Latency
4 8 (15.69%) Risk Management
4 8 (15.69%) Visualisation
5 7 (13.73%) Configuration Management
6 6 (11.76%) Agile Software Development
6 6 (11.76%) Incident Management
6 6 (11.76%) Problem Management
6 6 (11.76%) Threat Modelling
7 5 (9.80%) Investment Management
7 5 (9.80%) SIEM
8 4 (7.84%) Change Management
8 4 (7.84%) Computer Science
8 4 (7.84%) Migration
8 4 (7.84%) Process Improvement
8 4 (7.84%) Project Management
8 4 (7.84%) Test Strategy
Programming Languages
1 19 (37.25%) Java
2 18 (35.29%) SQL
3 10 (19.61%) Python
4 8 (15.69%) PL/SQL
5 6 (11.76%) Perl
5 6 (11.76%) PowerShell
5 6 (11.76%) Shell Script
6 3 (5.88%) JavaScript
6 3 (5.88%) R
6 3 (5.88%) VB
6 3 (5.88%) VBScript
7 2 (3.92%) Bash Shell
7 2 (3.92%) C#
7 2 (3.92%) Go
7 2 (3.92%) Ruby
8 1 (1.96%) COBOL
8 1 (1.96%) HiveQL
8 1 (1.96%) Korn
8 1 (1.96%) SAS Macro
8 1 (1.96%) Scala
Qualifications
1 6 (11.76%) Security Cleared
2 5 (9.80%) Cisco Certification
2 5 (9.80%) Degree
3 4 (7.84%) CISSP
3 4 (7.84%) SC Cleared
4 3 (5.88%) CCNP
5 2 (3.92%) (ISC)2 CCSP
5 2 (3.92%) CCSP
5 2 (3.92%) CEH
5 2 (3.92%) CISM
5 2 (3.92%) CREST Certified
5 2 (3.92%) DV Cleared
5 2 (3.92%) GCFA
5 2 (3.92%) GCIA
5 2 (3.92%) GCIH
5 2 (3.92%) GIAC
6 1 (1.96%) CCNA
6 1 (1.96%) Computer Science Degree
6 1 (1.96%) Numerate Degree
Quality Assurance & Compliance
1 3 (5.88%) NIST
2 2 (3.92%) COBIT
3 1 (1.96%) SEPA
System Software
1 12 (23.53%) Docker
2 7 (13.73%) Active Directory
3 4 (7.84%) VMware Infrastructure
4 1 (1.96%) HDFS
4 1 (1.96%) Oracle RAC
4 1 (1.96%) Time Sharing Option
4 1 (1.96%) Tivoli Workload Scheduler
4 1 (1.96%) VMware NSX
4 1 (1.96%) vSphere
Systems Management
1 13 (25.49%) Kubernetes
2 4 (7.84%) Ansible
2 4 (7.84%) Terraform
3 2 (3.92%) CSIRT
3 2 (3.92%) Grafana
3 2 (3.92%) Nagios
3 2 (3.92%) Puppet
3 2 (3.92%) Salt
4 1 (1.96%) Cisco CUCM
4 1 (1.96%) Cisco Prime
4 1 (1.96%) ITRS Geneos
4 1 (1.96%) Opscode Chef
4 1 (1.96%) Oracle Enterprise Manager
4 1 (1.96%) Oracle RMAN
4 1 (1.96%) SolarWinds Orion
4 1 (1.96%) Tivoli
4 1 (1.96%) vRealize
Vendors
1 13 (25.49%) Oracle
2 7 (13.73%) VMware
3 5 (9.80%) Microsoft
4 4 (7.84%) Cisco
5 3 (5.88%) Delphix
5 3 (5.88%) IBM
5 3 (5.88%) ION Trading
5 3 (5.88%) Murex
5 3 (5.88%) Red Hat
6 2 (3.92%) Bloomberg
6 2 (3.92%) Google
6 2 (3.92%) Linedata
6 2 (3.92%) Reuters
6 2 (3.92%) Solace
6 2 (3.92%) Splunk
7 1 (1.96%) BEA
7 1 (1.96%) Citrix
7 1 (1.96%) Informatica
7 1 (1.96%) Sybase
7 1 (1.96%) webMethods