Period
to 14 May 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 14 May 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
14 May 2021
Same period 2020 Same period 2019
Rank 90 76 80
Rank change year-on-year -14 +4 -28
Contract jobs citing Unix 66 81 192
As % of all contract jobs advertised in the City of London 2.38% 2.41% 2.97%
As % of the Operating Systems category 18.28% 14.24% 15.37%
Number of daily rates quoted 55 59 141
10th Percentile £340 £323 £400
25th Percentile £431 £400 £475
Median daily rate (50th Percentile) £550 £500 £550
Median % change year-on-year +10.00% -9.09% +4.76%
75th Percentile £675 £604 £625
90th Percentile £695 £700 £669
Central London median daily rate £550 £513 £550
% change year-on-year +7.32% -6.82% +4.76%

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 361 569 1,249
As % of all contract IT jobs advertised in the City of London 13.04% 16.91% 19.30%
Number of daily rates quoted 274 439 934
10th Percentile £217 £149 £161
25th Percentile £379 £263 £341
Median daily rate (50th Percentile) £499 £450 £475
Median % change year-on-year +10.83% -5.26% -5.00%
75th Percentile £595 £574 £585
90th Percentile £694 £650 £650
Central London median daily rate £499 £450 £475
% change year-on-year +10.83% -5.26% -5.00%
Number of hourly rates quoted 2 12 23
10th Percentile £13.66 £11.15 £17.29
25th Percentile £13.72 £13.63 £18.98
Median hourly rate £13.88 £16.48 £21.00
Median % change year-on-year -15.78% -21.55% +12.30%
75th Percentile £13.97 £18.90 £32.00
90th Percentile £13.99 £20.85 £37.50
Central London median hourly rate £13.88 £18.70 £21.00
% change year-on-year -25.80% -10.95% +5.00%

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 14 May 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 14 May 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 (59.09%) Linux
2 28 (42.42%) Finance
3 24 (36.36%) Java
4 20 (30.30%) SQL
5 19 (28.79%) Oracle
6 18 (27.27%) Banking
7 15 (22.73%) Python
8 14 (21.21%) Windows
8 14 (21.21%) Spring
9 13 (19.70%) Docker
10 12 (18.18%) Maven
10 12 (18.18%) Investment Banking
10 12 (18.18%) Shell Script
11 11 (16.67%) Risk Management
11 11 (16.67%) Front Office
11 11 (16.67%) Agile Software Development
11 11 (16.67%) TDD
11 11 (16.67%) Market Risk
11 11 (16.67%) Visualisation
11 11 (16.67%) Kubernetes
12 10 (15.15%) DevOps
12 10 (15.15%) Incident Management
12 10 (15.15%) Data Analysis
13 9 (13.64%) Grid Computing
13 9 (13.64%) Perl
13 9 (13.64%) PL/SQL
13 9 (13.64%) Active Directory
13 9 (13.64%) Credit Risk
13 9 (13.64%) SWIFT
13 9 (13.64%) Spring Boot

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 4 (6.06%) Confluence
1 4 (6.06%) JBoss
2 3 (4.55%) Apache
2 3 (4.55%) Apache Spark
3 2 (3.03%) CMS
3 2 (3.03%) SAS
3 2 (3.03%) SharePoint
3 2 (3.03%) WebLogic
4 1 (1.52%) Appian
4 1 (1.52%) Elasticsearch
4 1 (1.52%) IIS
4 1 (1.52%) Mule
4 1 (1.52%) nginx
4 1 (1.52%) Oracle SOA Suite
4 1 (1.52%) Oracle Workflow
4 1 (1.52%) Red Hat Fuse
4 1 (1.52%) Tomcat
Applications
1 4 (6.06%) Microsoft Excel
2 1 (1.52%) Microsoft Office
Business Applications
1 2 (3.03%) Eikon
1 2 (3.03%) IntelliMatch
1 2 (3.03%) ION MarketView
1 2 (3.03%) Salerio
Cloud Services
1 8 (12.12%) Azure
2 6 (9.09%) AWS
3 3 (4.55%) GitHub
3 3 (4.55%) IaaS
3 3 (4.55%) PaaS
4 2 (3.03%) Azure Active Directory
4 2 (3.03%) GCP
4 2 (3.03%) OpenShift
4 2 (3.03%) SaaS
5 1 (1.52%) Amazon CloudWatch
5 1 (1.52%) Amazon EC2
5 1 (1.52%) Amazon EMR
5 1 (1.52%) Amazon S3
5 1 (1.52%) Amazon SQS
5 1 (1.52%) AWS CloudFormation
5 1 (1.52%) AWS Lambda
5 1 (1.52%) AWS Step Functions
5 1 (1.52%) Cloud Computing
5 1 (1.52%) Microsoft 365
5 1 (1.52%) Virtual Private Cloud
Communications & Networking
1 6 (9.09%) DNS
2 4 (6.06%) DHCP
3 2 (3.03%) Firewall
3 2 (3.03%) HTTPS
3 2 (3.03%) Internet
3 2 (3.03%) Intrusion Detection
3 2 (3.03%) Kerberos
3 2 (3.03%) TCP/IP
4 1 (1.52%) Intranet
4 1 (1.52%) NAS
4 1 (1.52%) Network Security
4 1 (1.52%) SAN
4 1 (1.52%) SIGTRAN
4 1 (1.52%) SMPP
4 1 (1.52%) SMS
4 1 (1.52%) SS7
4 1 (1.52%) SSL
4 1 (1.52%) Wireshark
Database & Business Intelligence
1 8 (12.12%) Oracle Database
2 6 (9.09%) SQL Server
3 4 (6.06%) MySQL
4 3 (4.55%) Data Warehouse
4 3 (4.55%) Hadoop
4 3 (4.55%) NoSQL
4 3 (4.55%) Relational Database
5 2 (3.03%) Apache Hive
5 2 (3.03%) Big Data
5 2 (3.03%) Data Mart
5 2 (3.03%) MongoDB
6 1 (1.52%) Base SAS
6 1 (1.52%) GIS
6 1 (1.52%) HBase
6 1 (1.52%) Oracle Database 11g
6 1 (1.52%) Pentaho
6 1 (1.52%) PostgreSQL
6 1 (1.52%) SQL Server Integration Services
6 1 (1.52%) SQL Server Reporting Services
6 1 (1.52%) SQLPlus
Development Applications
1 12 (18.18%) Maven
2 8 (12.12%) Git (software)
3 5 (7.58%) JIRA
4 4 (6.06%) Bitbucket
5 3 (4.55%) Jenkins
5 3 (4.55%) Oracle APEX
5 3 (4.55%) Subversion
6 2 (3.03%) Gradle
6 2 (3.03%) JUnit
6 2 (3.03%) Octopus Deploy
6 2 (3.03%) TeamCity
7 1 (1.52%) Atlassian Bamboo
7 1 (1.52%) CA Gen
7 1 (1.52%) Cucumber
7 1 (1.52%) Eclipse
7 1 (1.52%) FishEye
7 1 (1.52%) GitLab
7 1 (1.52%) Hudson
7 1 (1.52%) IntelliJ
7 1 (1.52%) Sonatype Nexus
General
1 28 (42.42%) Finance
2 18 (27.27%) Banking
3 12 (18.18%) Investment Banking
4 11 (16.67%) Front Office
5 8 (12.12%) Analytical Skills
6 7 (10.61%) Social Skills
7 6 (9.09%) Back Office
8 2 (3.03%) Public Sector
9 1 (1.52%) Advertising
Job Titles
1 22 (33.33%) Developer
2 11 (16.67%) Java Developer
3 10 (15.15%) Senior Developer
3 10 (15.15%) Senior Java Developer
4 9 (13.64%) Analyst
5 8 (12.12%) Support Analyst
6 6 (9.09%) Applications Support
6 6 (9.09%) Applications Support Analyst
6 6 (9.09%) DBA
6 6 (9.09%) Oracle DBA
7 4 (6.06%) Automation Engineer
7 4 (6.06%) Payments Analyst
7 4 (6.06%) Unix Engineer
8 3 (4.55%) Database Engineer
8 3 (4.55%) Development DBA
8 3 (4.55%) Development Engineer
8 3 (4.55%) Murex Developer
8 3 (4.55%) Oracle Database Engineer
8 3 (4.55%) Oracle Development DBA
8 3 (4.55%) Unix Scripter
Libraries, Frameworks & Software Standards
1 14 (21.21%) Spring
2 9 (13.64%) Spring Boot
3 5 (7.58%) Middleware
4 4 (6.06%) REST
4 4 (6.06%) Web Services
5 3 (4.55%) .NET
5 3 (4.55%) CSS
5 3 (4.55%) Hibernate
5 3 (4.55%) HTML
5 3 (4.55%) Java EE
5 3 (4.55%) Kafka
5 3 (4.55%) LDAP
6 2 (3.03%) J2EE
6 2 (3.03%) JMS
6 2 (3.03%) JSON
6 2 (3.03%) MSMQ
6 2 (3.03%) RAML
6 2 (3.03%) Regular Expression
6 2 (3.03%) RESTful
6 2 (3.03%) XML
Miscellaneous
1 11 (16.67%) Market Risk
2 9 (13.64%) Credit Risk
2 9 (13.64%) Grid Computing
2 9 (13.64%) SWIFT
3 5 (7.58%) Fixed Income
4 3 (4.55%) Replication
5 2 (3.03%) Data Structures
5 2 (3.03%) Derivative
5 2 (3.03%) Management Information System
6 1 (1.52%) Cyberthreat
6 1 (1.52%) Equities
6 1 (1.52%) Hybrid Cloud
6 1 (1.52%) Linux Command Line
6 1 (1.52%) Public Cloud
6 1 (1.52%) RIA
Operating Systems
1 39 (59.09%) Linux
2 14 (21.21%) Windows
3 3 (4.55%) Red Hat Enterprise Linux
3 3 (4.55%) Solaris
4 2 (3.03%) Mac OS
4 2 (3.03%) Windows 10
4 2 (3.03%) Windows Server
4 2 (3.03%) Windows Server 2012
5 1 (1.52%) Android
5 1 (1.52%) VMS
Processes & Methodologies
1 11 (16.67%) Agile Software Development
1 11 (16.67%) Risk Management
1 11 (16.67%) TDD
1 11 (16.67%) Visualisation
2 10 (15.15%) Data Analysis
2 10 (15.15%) DevOps
2 10 (15.15%) Incident Management
3 9 (13.64%) Low Latency
4 7 (10.61%) Configuration Management
4 7 (10.61%) Migration
4 7 (10.61%) Problem-Solving
5 6 (9.09%) Problem Management
6 5 (7.58%) Disaster Recovery
6 5 (7.58%) Kalman Filter
6 5 (7.58%) Patch Management
6 5 (7.58%) Project Management
7 4 (6.06%) Change Management
7 4 (6.06%) High Availability
7 4 (6.06%) Microservices
7 4 (6.06%) Test Strategy
Programming Languages
1 24 (36.36%) Java
2 20 (30.30%) SQL
3 15 (22.73%) Python
4 12 (18.18%) Shell Script
5 9 (13.64%) Perl
5 9 (13.64%) PL/SQL
6 7 (10.61%) PowerShell
7 4 (6.06%) Bash Shell
8 3 (4.55%) JavaScript
8 3 (4.55%) VB
8 3 (4.55%) VBScript
9 2 (3.03%) C#
9 2 (3.03%) Scala
10 1 (1.52%) COBOL
10 1 (1.52%) HiveQL
10 1 (1.52%) Korn
10 1 (1.52%) R
10 1 (1.52%) Ruby
10 1 (1.52%) SAS Macro
10 1 (1.52%) VBA
Qualifications
1 7 (10.61%) Security Cleared
2 5 (7.58%) Degree
2 5 (7.58%) SC Cleared
3 3 (4.55%) CISSP
3 3 (4.55%) DV Cleared
3 3 (4.55%) GIAC
4 2 (3.03%) CCNP
4 2 (3.03%) CEH
4 2 (3.03%) Cisco Certification
5 1 (1.52%) CISA
5 1 (1.52%) CISM
5 1 (1.52%) Computer Science Degree
5 1 (1.52%) CREST Certified
5 1 (1.52%) GCFA
5 1 (1.52%) GCIH
Quality Assurance & Compliance
1 3 (4.55%) SEPA
2 1 (1.52%) QA
2 1 (1.52%) SLA
System Software
1 13 (19.70%) Docker
2 9 (13.64%) Active Directory
3 5 (7.58%) VMware Infrastructure
4 2 (3.03%) HDFS
4 2 (3.03%) NFS
4 2 (3.03%) Veritas File System
4 2 (3.03%) Veritas Volume Manager
4 2 (3.03%) VMware ESXi
5 1 (1.52%) Apache ZooKeeper
5 1 (1.52%) BitLocker
5 1 (1.52%) Oracle RAC
Systems Management
1 11 (16.67%) Kubernetes
2 4 (6.06%) Ansible
3 3 (4.55%) Red Hat Satellite
4 2 (3.03%) Control-M
4 2 (3.03%) EMC NetWorker
4 2 (3.03%) Failover Clustering
4 2 (3.03%) Grafana
4 2 (3.03%) Nagios
4 2 (3.03%) Netcool
4 2 (3.03%) Oracle Enterprise Manager
4 2 (3.03%) QRadar
4 2 (3.03%) Tivoli
4 2 (3.03%) Tivoli Storage Manager
5 1 (1.52%) EnCase
5 1 (1.52%) FTK
5 1 (1.52%) Hadoop YARN
5 1 (1.52%) Oozie
5 1 (1.52%) Oracle RMAN
5 1 (1.52%) Terraform
Vendors
1 19 (28.79%) Oracle
2 7 (10.61%) Red Hat
3 5 (7.58%) Microsoft
3 5 (7.58%) VMware
4 4 (6.06%) IBM
4 4 (6.06%) Murex
4 4 (6.06%) Splunk
5 3 (4.55%) Atlassian
5 3 (4.55%) Delphix
6 2 (3.03%) Bloomberg
6 2 (3.03%) BMC
6 2 (3.03%) CyberArk
6 2 (3.03%) EMC
6 2 (3.03%) ION Trading
6 2 (3.03%) Linedata
6 2 (3.03%) Qualys
6 2 (3.03%) Reuters
6 2 (3.03%) SaltStack
6 2 (3.03%) Solace
6 2 (3.03%) Sybase