Period
to 30 July 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 30 July 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
30 Jul 2021
Same period 2020 Same period 2019
Rank 107 58 75
Rank change year-on-year -49 +17 -14
Contract jobs citing Unix 62 84 204
As % of all contract jobs advertised in the City of London 1.80% 3.57% 3.12%
As % of the Operating Systems category 15.86% 20.39% 15.75%
Number of daily rates quoted 53 59 151
10th Percentile £408 £361 £400
25th Percentile £463 £456 £461
Median daily rate (50th Percentile) £585 £495 £538
Median % change year-on-year +18.08% -7.91% -2.27%
75th Percentile £675 £594 £600
90th Percentile £700 £750 £688
Central London median daily rate £575 £513 £525
% change year-on-year +12.20% -2.38% -4.55%
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 391 412 1,295
As % of all contract IT jobs advertised in the City of London 11.36% 17.52% 19.78%
Number of daily rates quoted 311 316 1,001
10th Percentile £245 £213 £165
25th Percentile £411 £356 £363
Median daily rate (50th Percentile) £513 £475 £475
Median % change year-on-year +7.89% - -5.00%
75th Percentile £638 £563 £575
90th Percentile £700 £650 £650
Central London median daily rate £513 £475 £475
% change year-on-year +7.89% - -5.00%
Number of hourly rates quoted 5 3 30
10th Percentile £13.73 £16.35 £12.04
25th Percentile £13.88 £19.88 £17.34
Median hourly rate £14.25 £27.18 £21.00
Median % change year-on-year -47.56% +29.40% +12.30%
75th Percentile £19.00 £33.42 £22.64
90th Percentile £21.40 £36.32 £38.23
Central London median hourly rate £16.19 £19.00 £21.00
% change year-on-year -14.82% -9.52% +11.41%

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 30 July 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 30 July 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 36 (58.06%) Finance
2 29 (46.77%) Linux
3 25 (40.32%) Java
4 15 (24.19%) SQL
4 15 (24.19%) Oracle
5 14 (22.58%) Python
6 13 (20.97%) Docker
7 12 (19.35%) DevOps
7 12 (19.35%) Agile Software Development
7 12 (19.35%) Banking
8 11 (17.74%) Spring
8 11 (17.74%) SWIFT
8 11 (17.74%) Kubernetes
9 10 (16.13%) SQL Server
10 9 (14.52%) Shell Script
10 9 (14.52%) Git (software)
10 9 (14.52%) Analytical Skills
10 9 (14.52%) Social Skills
11 8 (12.90%) Maven
11 8 (12.90%) Incident Management
11 8 (12.90%) Front Office
11 8 (12.90%) Windows
11 8 (12.90%) Red Hat
12 6 (9.68%) Active Directory
12 6 (9.68%) Sybase
12 6 (9.68%) Risk Management
12 6 (9.68%) Migration
12 6 (9.68%) Fixed Income
12 6 (9.68%) Derivative
12 6 (9.68%) Market Risk

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 (6.45%) Apache
2 3 (4.84%) Apache Spark
2 3 (4.84%) Confluence
2 3 (4.84%) JBoss
3 2 (3.23%) CMS
3 2 (3.23%) IIS
3 2 (3.23%) SharePoint
3 2 (3.23%) WebLogic
4 1 (1.61%) Appian
4 1 (1.61%) Elasticsearch
4 1 (1.61%) nginx
4 1 (1.61%) Oracle SOA Suite
Applications
1 1 (1.61%) Microsoft Excel
1 1 (1.61%) Microsoft Office
Business Applications
1 2 (3.23%) Eikon
1 2 (3.23%) IntelliMatch
1 2 (3.23%) ION MarketView
Cloud Services
1 6 (9.68%) AWS
2 5 (8.06%) Azure
3 4 (6.45%) GCP
4 3 (4.84%) AWS CloudFormation
4 3 (4.84%) GitHub
4 3 (4.84%) IaaS
5 2 (3.23%) PaaS
5 2 (3.23%) SaaS
6 1 (1.61%) Amazon CloudWatch
6 1 (1.61%) Amazon EC2
6 1 (1.61%) Amazon EMR
6 1 (1.61%) Amazon S3
6 1 (1.61%) Amazon SQS
6 1 (1.61%) AWS Lambda
6 1 (1.61%) AWS Step Functions
6 1 (1.61%) Cloud Computing
6 1 (1.61%) Power Platform
6 1 (1.61%) Serverless
6 1 (1.61%) Virtual Private Cloud
Communications & Networking
1 4 (6.45%) DNS
2 2 (3.23%) DHCP
2 2 (3.23%) Firewall
2 2 (3.23%) HTTPS
2 2 (3.23%) Internet
2 2 (3.23%) Intrusion Detection
2 2 (3.23%) Kerberos
2 2 (3.23%) TCP/IP
3 1 (1.61%) Intranet
3 1 (1.61%) LAN
3 1 (1.61%) NAS
3 1 (1.61%) Network Security
3 1 (1.61%) SIGTRAN
3 1 (1.61%) SMPP
3 1 (1.61%) SMS
3 1 (1.61%) SS7
3 1 (1.61%) WAN
3 1 (1.61%) Wireshark
Database & Business Intelligence
1 10 (16.13%) SQL Server
2 5 (8.06%) Relational Database
3 4 (6.45%) MySQL
4 3 (4.84%) Data Warehouse
5 2 (3.23%) Big Data
5 2 (3.23%) BigQuery
5 2 (3.23%) Bigtable
5 2 (3.23%) Data Mart
5 2 (3.23%) Hadoop
5 2 (3.23%) NoSQL
5 2 (3.23%) Oracle Database
5 2 (3.23%) PostgreSQL
5 2 (3.23%) RDBMS
6 1 (1.61%) Amazon Athena
6 1 (1.61%) Data Lake
6 1 (1.61%) Microsoft Analysis Services
6 1 (1.61%) OLAP Cube
6 1 (1.61%) Oracle Database 12c
6 1 (1.61%) Power BI
6 1 (1.61%) SQL Server Integration Services
Development Applications
1 9 (14.52%) Git (software)
2 8 (12.90%) Maven
3 5 (8.06%) JIRA
4 4 (6.45%) Subversion
5 2 (3.23%) Gradle
5 2 (3.23%) Jenkins
5 2 (3.23%) TeamCity
6 1 (1.61%) Ant
6 1 (1.61%) Eclipse
6 1 (1.61%) IntelliJ
6 1 (1.61%) Selenium
6 1 (1.61%) Sonatype Nexus
General
1 36 (58.06%) Finance
2 12 (19.35%) Banking
3 9 (14.52%) Analytical Skills
3 9 (14.52%) Social Skills
4 8 (12.90%) Front Office
5 6 (9.68%) Investment Banking
6 4 (6.45%) Back Office
7 3 (4.84%) Financial Institution
8 2 (3.23%) Advertising
8 2 (3.23%) Legal
9 1 (1.61%) Documentation Skills
9 1 (1.61%) Public Sector
9 1 (1.61%) Telecoms
Job Titles
1 20 (32.26%) Developer
2 15 (24.19%) Analyst
3 12 (19.35%) Support Analyst
4 11 (17.74%) Applications Support
4 11 (17.74%) Java Developer
5 10 (16.13%) Applications Support Analyst
6 8 (12.90%) Payments Analyst
7 4 (6.45%) Architect
7 4 (6.45%) Senior Developer
7 4 (6.45%) Senior Java Developer
8 3 (4.84%) Back Office Engineer
8 3 (4.84%) Murex Developer
9 2 (3.23%) Administrator
9 2 (3.23%) Data Engineer
9 2 (3.23%) Front End Developer (Client-Side Developer)
9 2 (3.23%) Linux Administrator
9 2 (3.23%) Linux Systems Administrator
9 2 (3.23%) Systems Administrator
9 2 (3.23%) Technical Architect
9 2 (3.23%) Unix Engineer
Libraries, Frameworks & Software Standards
1 11 (17.74%) Spring
2 5 (8.06%) Middleware
2 5 (8.06%) Spring Boot
3 4 (6.45%) HTML
3 4 (6.45%) LDAP
3 4 (6.45%) Web Services
3 4 (6.45%) XSLT
4 3 (4.84%) CSS
4 3 (4.84%) Java EE
4 3 (4.84%) JMS
4 3 (4.84%) REST
5 2 (3.23%) .NET
5 2 (3.23%) Hibernate
5 2 (3.23%) J2EE
5 2 (3.23%) JSON
5 2 (3.23%) RAML
5 2 (3.23%) RESTful
5 2 (3.23%) XML
6 1 (1.61%) Pandas
6 1 (1.61%) React
Miscellaneous
1 11 (17.74%) SWIFT
2 6 (9.68%) Derivative
2 6 (9.68%) Fixed Income
2 6 (9.68%) Market Risk
3 4 (6.45%) Credit Risk
3 4 (6.45%) Exotic Derivative
3 4 (6.45%) Grid Computing
4 3 (4.84%) Replication
5 2 (3.23%) Cloud Native
5 2 (3.23%) Data Structures
5 2 (3.23%) Equities
5 2 (3.23%) Foreign Exchange (FX)
5 2 (3.23%) Hedge funds
5 2 (3.23%) Linux Command Line
5 2 (3.23%) Management Information System
6 1 (1.61%) Cyberthreat
6 1 (1.61%) Mainframe
6 1 (1.61%) Pricing Data
6 1 (1.61%) Reference Data
6 1 (1.61%) Video\Live Streaming
Operating Systems
1 29 (46.77%) Linux
2 8 (12.90%) Windows
3 5 (8.06%) Red Hat Enterprise Linux
4 3 (4.84%) Solaris
5 2 (3.23%) Mac OS
6 1 (1.61%) Android
Processes & Methodologies
1 12 (19.35%) Agile Software Development
1 12 (19.35%) DevOps
2 8 (12.90%) Incident Management
3 6 (9.68%) Microservices
3 6 (9.68%) Migration
3 6 (9.68%) Risk Management
3 6 (9.68%) TDD
3 6 (9.68%) Visualisation
4 5 (8.06%) Data Analysis
4 5 (8.06%) Kalman Filter
4 5 (8.06%) Problem-Solving
5 4 (6.45%) Decision-Making
5 4 (6.45%) IT Strategy
5 4 (6.45%) Low Latency
5 4 (6.45%) Mathematics
5 4 (6.45%) Multithreading
5 4 (6.45%) Quantitative Finance
5 4 (6.45%) Root Cause Analysis
6 3 (4.84%) Patch Management
6 3 (4.84%) Storage Management
Programming Languages
1 25 (40.32%) Java
2 15 (24.19%) SQL
3 14 (22.58%) Python
4 9 (14.52%) Shell Script
5 5 (8.06%) Perl
6 4 (6.45%) C#
6 4 (6.45%) JavaScript
7 3 (4.84%) Bash Shell
7 3 (4.84%) PL/SQL
7 3 (4.84%) PowerShell
8 1 (1.61%) BeanShell
8 1 (1.61%) Bourne shell
8 1 (1.61%) C
8 1 (1.61%) Korn
8 1 (1.61%) Scala
8 1 (1.61%) VB
8 1 (1.61%) VBScript
Qualifications
1 4 (6.45%) Degree
2 3 (4.84%) CISSP
2 3 (4.84%) GIAC
2 3 (4.84%) SC Cleared
2 3 (4.84%) Security Cleared
3 2 (3.23%) CCNP
3 2 (3.23%) CEH
3 2 (3.23%) Cisco Certification
4 1 (1.61%) CISA
4 1 (1.61%) CISM
4 1 (1.61%) Computer Science Degree
4 1 (1.61%) CREST Certified
4 1 (1.61%) DV Cleared
4 1 (1.61%) GCFA
4 1 (1.61%) GCIH
4 1 (1.61%) OCP
4 1 (1.61%) Oracle Certification
Quality Assurance & Compliance
1 3 (4.84%) SEPA
2 2 (3.23%) GDPR
2 2 (3.23%) QA
3 1 (1.61%) SLA
System Software
1 13 (20.97%) Docker
2 6 (9.68%) Active Directory
3 3 (4.84%) VMware Infrastructure
4 2 (3.23%) NFS
4 2 (3.23%) Veritas File System
4 2 (3.23%) Veritas Volume Manager
4 2 (3.23%) VMware ESXi
5 1 (1.61%) Apache ZooKeeper
5 1 (1.61%) BitLocker
5 1 (1.61%) HDFS
5 1 (1.61%) Oracle RAC
5 1 (1.61%) RACF
Systems Management
1 11 (17.74%) Kubernetes
2 3 (4.84%) Ansible
2 3 (4.84%) Red Hat Satellite
3 2 (3.23%) Control-M
3 2 (3.23%) EMC NetWorker
3 2 (3.23%) Failover Clustering
3 2 (3.23%) Netcool
3 2 (3.23%) QRadar
3 2 (3.23%) Tivoli
3 2 (3.23%) Tivoli Storage Manager
4 1 (1.61%) Data Guard
4 1 (1.61%) EnCase
4 1 (1.61%) FTK
4 1 (1.61%) Hadoop YARN
4 1 (1.61%) ITRS Geneos
4 1 (1.61%) Oozie
4 1 (1.61%) Oracle Enterprise Manager
4 1 (1.61%) Oracle RMAN
4 1 (1.61%) Terraform
Vendors
1 15 (24.19%) Oracle
2 8 (12.90%) Red Hat
3 6 (9.68%) Sybase
4 3 (4.84%) Bloomberg
4 3 (4.84%) EMC
4 3 (4.84%) Google
4 3 (4.84%) ION Trading
4 3 (4.84%) Murex
4 3 (4.84%) VMware
5 2 (3.23%) Atlassian
5 2 (3.23%) BMC
5 2 (3.23%) CyberArk
5 2 (3.23%) IBM
5 2 (3.23%) Microsoft
5 2 (3.23%) Qualys
5 2 (3.23%) Reuters
5 2 (3.23%) SaltStack
5 2 (3.23%) Solace
5 2 (3.23%) Splunk
6 1 (1.61%) Mavenir