Period
to 16 July 2018

The following table provides summary statistics for permanent job vacancies advertised in the City of London with a requirement for Open Source skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited Open Source over the 6 months to 16 July 2018 with a comparison to the same period in the previous 2 years.

Open Source
Central London > City of London
6 months to
16 Jul 2018
Same period 2017 Same period 2016
Rank 106 109 91
Rank change year-on-year +3 -18 +33
Permanent jobs citing Open Source 335 298 438
As % of all permanent IT jobs advertised in the City of London 2.98% 2.89% 3.22%
As % of the Processes & Methodologies category 3.23% 3.19% 3.52%
Number of salaries quoted 295 257 417
City of London median annual salary £70,000 £68,753 £60,000
Median salary % change year-on-year +1.81% +14.59% -
10th Percentile £42,000 £38,750 £38,053
90th Percentile £101,500 £97,500 £87,500
Central London median annual salary £70,000 £65,000 £60,000
% change year-on-year +7.69% +8.33% +4.35%

Open Source is in the Processes and Methodologies category. The following table is for comparison with the above and provides summary statistics for all permanent job vacancies advertised in the City of London with a requirement for process or methodology skills.

All Process and Methodology Skills
City of London
Permanent vacancies with a requirement for process or methodology skills 10,379 9,336 12,429
As % of all permanent IT jobs advertised in the City of London 92.22% 90.56% 91.42%
Number of salaries quoted 9,227 8,390 11,236
City of London median annual salary £62,500 £60,000 £57,500
Median salary % change year-on-year +4.17% +4.35% +4.55%
10th Percentile £37,000 £35,000 £35,000
90th Percentile £93,750 £92,500 £87,500
Central London median annual salary £62,500 £60,000 £57,500
% change year-on-year +4.17% +4.35% +4.55%

Open Source
Job Vacancy Trend in the City of London

Job postings citing Open Source as a percentage of all IT jobs advertised in the City of London.

Job vacancy trend for Open Source in the City of London

Open Source
Salary Trend in the City of London

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing Open Source in the City of London.

Salary trend for Open Source in the City of London

Open Source
Salary Histogram in the City of London

The salary distribution of IT jobs citing Open Source in the City of London over the 6 months to 16 July 2018.

Salary histogram for Open Source in the City of London

For the 6 months to 16 July 2018, IT jobs citing Open Source also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all permanent job ads across the City of London region with a requirement for Open Source.

1 147 (43.88%) Java
2 146 (43.58%) Agile Software Development
3 109 (32.54%) Finance
4 97 (28.96%) Python
5 88 (26.27%) Linux
5 88 (26.27%) JavaScript
6 87 (25.97%) Amazon AWS
7 84 (25.07%) DevOps
8 77 (22.99%) SQL
9 69 (20.60%) Scrum
9 69 (20.60%) Docker
10 54 (16.12%) Ansible
11 53 (15.82%) Software Engineering
12 52 (15.52%) Microsoft Azure
13 50 (14.93%) Degree
13 50 (14.93%) C#
14 49 (14.63%) NoSQL
14 49 (14.63%) Big Data
15 48 (14.33%) TDD
16 46 (13.73%) Puppet
16 46 (13.73%) Jenkins
17 45 (13.43%) HTML
18 44 (13.13%) SQL Server
18 44 (13.13%) Microservices
19 43 (12.84%) Kafka
19 43 (12.84%) Ruby
20 42 (12.54%) Configuration Management
21 41 (12.24%) MySQL
22 38 (11.34%) HTML5
22 38 (11.34%) Continuous Integration

Open Source
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 37 (11.04%) Apache Spark
2 19 (5.67%) Apache
3 16 (4.78%) OpenStack
4 12 (3.58%) Elasticsearch
5 11 (3.28%) JBoss
6 9 (2.69%) WebLogic
7 8 (2.39%) CMS
8 7 (2.09%) Confluence
8 7 (2.09%) WebSphere
9 4 (1.19%) NServiceBus
9 4 (1.19%) Oracle SOA Suite
9 4 (1.19%) WordPress
10 3 (0.90%) Apache Solr
10 3 (0.90%) Drupal
10 3 (0.90%) nginx
10 3 (0.90%) Oracle Workflow
11 2 (0.60%) GemFire
11 2 (0.60%) GeoServer
11 2 (0.60%) Tomcat
12 1 (0.30%) Ethereum
Applications
1 12 (3.58%) Microsoft Excel
2 10 (2.99%) Microsoft Office
Business Applications
1 1 (0.30%) Dynamics CRM
1 1 (0.30%) ION MarketView
Cloud Services
1 87 (25.97%) Amazon AWS
2 52 (15.52%) Microsoft Azure
3 31 (9.25%) Google Cloud Platform
4 17 (5.07%) SaaS
5 13 (3.88%) Serverless
6 12 (3.58%) AWS Lambda
7 10 (2.99%) GitHub
7 10 (2.99%) PaaS
8 8 (2.39%) Cloud Computing
9 7 (2.09%) CloudFront
9 7 (2.09%) OpenShift
10 5 (1.49%) Amazon EC2
10 5 (1.49%) Amazon EMR
11 4 (1.19%) Amazon S3
11 4 (1.19%) Datadog
11 4 (1.19%) Virtual Private Cloud
12 3 (0.90%) IaaS
13 2 (0.60%) Amazon Glacier
13 2 (0.60%) Boomi
13 2 (0.60%) npm
Communications & Networking
1 19 (5.67%) Firewall
2 10 (2.99%) Internet
2 10 (2.99%) TCP/IP
3 8 (2.39%) WAN
4 7 (2.09%) HTTP
5 6 (1.79%) DNS
5 6 (1.79%) LAN
6 5 (1.49%) Intrusion Detection
7 4 (1.19%) Peer-to-Peer Networking
7 4 (1.19%) SMTP
7 4 (1.19%) VPN
8 3 (0.90%) SMS
9 2 (0.60%) BGP
9 2 (0.60%) Network Security
10 1 (0.30%) EIGRP
10 1 (0.30%) HTTPS
10 1 (0.30%) Kerberos
10 1 (0.30%) OSPF
10 1 (0.30%) Wireless
Database & Business Intelligence
1 49 (14.63%) Big Data
1 49 (14.63%) NoSQL
2 44 (13.13%) SQL Server
3 41 (12.24%) MySQL
4 31 (9.25%) Hadoop
5 27 (8.06%) Apache Cassandra
6 21 (6.27%) MongoDB
7 20 (5.97%) Relational Database
8 14 (4.18%) Power BI
9 11 (3.28%) HBase
10 10 (2.99%) PostgreSQL
10 10 (2.99%) Redis
11 9 (2.69%) Apache Hive
11 9 (2.69%) SQL Server Reporting Services
12 8 (2.39%) Blockchain
13 7 (2.09%) Amazon RDS
13 7 (2.09%) Data Mining
13 7 (2.09%) RDBMS
14 6 (1.79%) Amazon DynamoDB
15 5 (1.49%) Data Lake
Development Applications
1 46 (13.73%) Jenkins
2 32 (9.55%) Git (software)
3 16 (4.78%) JIRA
4 15 (4.48%) Subversion
4 15 (4.48%) Visual Studio
5 13 (3.88%) JUnit
6 10 (2.99%) TeamCity
7 9 (2.69%) Mockito
8 8 (2.39%) Selenium
8 8 (2.39%) Vagrant
9 7 (2.09%) Cucumber
9 7 (2.09%) Maven
9 7 (2.09%) NUnit
9 7 (2.09%) webpack
10 6 (1.79%) GoCD
10 6 (1.79%) JMeter
10 6 (1.79%) SpecFlow
10 6 (1.79%) VisualVM
11 5 (1.49%) Grunt
11 5 (1.49%) gulp
General
1 109 (32.54%) Finance
2 31 (9.25%) Banking
3 27 (8.06%) Advertising
4 18 (5.37%) Law
5 16 (4.78%) Retail
6 13 (3.88%) Legal
7 9 (2.69%) Front Office
8 8 (2.39%) Automotive
8 8 (2.39%) Financial Institution
8 8 (2.39%) Games
8 8 (2.39%) Marketing
9 7 (2.09%) Telecoms
10 6 (1.79%) Investment Banking
11 4 (1.19%) Aerospace
11 4 (1.19%) Multimedia
Job Titles
1 133 (39.70%) Developer
2 47 (14.03%) Java Developer
3 37 (11.04%) DevOps Engineer
4 36 (10.75%) Architect
5 23 (6.87%) Analyst
6 20 (5.97%) Senior Developer
7 15 (4.48%) AWS Engineer
7 15 (4.48%) C++ Developer
7 15 (4.48%) Software Engineer
8 14 (4.18%) Data Engineer
8 14 (4.18%) Solutions Architect
9 13 (3.88%) Consultant
10 11 (3.28%) Agile Developer
10 11 (3.28%) C# Developer
11 10 (2.99%) Big Data Engineer
11 10 (2.99%) Junior
11 10 (2.99%) Software Developer
12 9 (2.69%) Front End Developer (Client-Side Developer)
12 9 (2.69%) Java Software Developer
12 9 (2.69%) Python Developer
Libraries, Frameworks & Software Standards
1 45 (13.43%) HTML
2 43 (12.84%) Kafka
3 38 (11.34%) HTML5
4 37 (11.04%) .NET
4 37 (11.04%) CSS
4 37 (11.04%) React
5 36 (10.75%) AngularJS
6 31 (9.25%) Node.js
7 29 (8.66%) Spring
8 26 (7.76%) Web Services
9 24 (7.16%) REST
10 21 (6.27%) XML
11 18 (5.37%) J2EE
12 17 (5.07%) CSS3
13 16 (4.78%) Hibernate
14 15 (4.48%) JMX
14 15 (4.48%) jQuery
15 14 (4.18%) JMS
16 13 (3.88%) RabbitMQ
17 11 (3.28%) JSON
Miscellaneous
1 36 (10.75%) Fintech
2 34 (10.15%) User Experience
3 32 (9.55%) Greenfield Project
4 28 (8.36%) Analytical Skills
4 28 (8.36%) Computer Science
5 23 (6.87%) Data Centre
6 20 (5.97%) Algorithms
6 20 (5.97%) Hedge funds
7 17 (5.07%) Mobile App
8 14 (4.18%) Derivative
9 13 (3.88%) Management Information System
10 9 (2.69%) Public Cloud
11 8 (2.39%) Data Structures
11 8 (2.39%) Market Risk
12 7 (2.09%) Blog
12 7 (2.09%) Enterprise Software
13 6 (1.79%) Equities
13 6 (1.79%) Fixed Income
13 6 (1.79%) Video Conferencing
14 5 (1.49%) Reinsurance
Operating Systems
1 88 (26.27%) Linux
2 36 (10.75%) Windows
3 35 (10.45%) Unix
4 13 (3.88%) CentOS
5 10 (2.99%) HPUX
5 10 (2.99%) Red Hat Enterprise Linux
6 8 (2.39%) Android
7 7 (2.09%) Windows 7
8 6 (1.79%) Apple iOS
8 6 (1.79%) Windows 8
9 5 (1.49%) AIX
9 5 (1.49%) Windows Server 2003
9 5 (1.49%) Windows Server 2008
9 5 (1.49%) Windows Server 2012
9 5 (1.49%) Windows XP
10 1 (0.30%) Debian
10 1 (0.30%) Mac OS
Processes & Methodologies
1 146 (43.58%) Agile Software Development
2 84 (25.07%) DevOps
3 69 (20.60%) Scrum
4 53 (15.82%) Software Engineering
5 48 (14.33%) TDD
6 44 (13.13%) Microservices
7 42 (12.54%) Configuration Management
8 38 (11.34%) Continuous Integration
9 36 (10.75%) SDLC
10 35 (10.45%) OO
11 33 (9.85%) Mentoring
12 31 (9.25%) Analytics
12 31 (9.25%) BDD
13 29 (8.66%) Problem-Solving
14 27 (8.06%) Stakeholder Management
15 26 (7.76%) Mathematics
16 25 (7.46%) Test Automation
17 24 (7.16%) E-Commerce
18 23 (6.87%) ETL
19 21 (6.27%) OOD
Programming Languages
1 147 (43.88%) Java
2 97 (28.96%) Python
3 88 (26.27%) JavaScript
4 77 (22.99%) SQL
5 50 (14.93%) C#
6 43 (12.84%) Ruby
7 26 (7.76%) C++
8 25 (7.46%) Scala
9 21 (6.27%) PHP
10 17 (5.07%) Bash Shell
11 15 (4.48%) Go
12 14 (4.18%) Java 8
12 14 (4.18%) VBA
13 10 (2.99%) PowerShell
14 9 (2.69%) Groovy
14 9 (2.69%) Kotlin
14 9 (2.69%) Perl
15 7 (2.09%) R
15 7 (2.09%) TypeScript
16 6 (1.79%) VB.NET
Qualifications
1 50 (14.93%) Degree
2 9 (2.69%) CISSP
2 9 (2.69%) Computer Science Degree
3 7 (2.09%) CISM
3 7 (2.09%) Security Cleared
4 6 (1.79%) Numerate Degree
4 6 (1.79%) PhD
5 3 (0.90%) MBA
5 3 (0.90%) SC Cleared
5 3 (0.90%) TOGAF Certification
6 2 (0.60%) AWS Certification
6 2 (0.60%) DV Cleared
6 2 (0.60%) ISTQB
6 2 (0.60%) ISTQB Foundation Certification
7 1 (0.30%) CompTIA Security+
7 1 (0.30%) GPEN
7 1 (0.30%) Master's Degree
7 1 (0.30%) OSCE
7 1 (0.30%) OSCP
7 1 (0.30%) OSWP
Quality Assurance & Compliance
1 11 (3.28%) Data Quality
2 9 (2.69%) QA
3 8 (2.39%) GCP
4 3 (0.90%) ISO/IEC 27001
4 3 (0.90%) SLA
5 2 (0.60%) GDPR
5 2 (0.60%) MiFID
6 1 (0.30%) PCI DSS
System Software
1 69 (20.60%) Docker
2 7 (2.09%) Virtual Desktop
2 7 (2.09%) Virtual Machines
2 7 (2.09%) VMware Infrastructure
3 5 (1.49%) Virtual Servers
4 2 (0.60%) Active Directory
4 2 (0.60%) HDFS
4 2 (0.60%) Snort
5 1 (0.30%) Apache ZooKeeper
5 1 (0.30%) Firmware
5 1 (0.30%) NFS
5 1 (0.30%) vSphere
Systems Management
1 54 (16.12%) Ansible
2 46 (13.73%) Puppet
3 38 (11.34%) Opscode Chef
4 35 (10.45%) Kubernetes
5 21 (6.27%) Salt
6 20 (5.97%) Terraform
7 8 (2.39%) Consul
8 7 (2.09%) Nagios
8 7 (2.09%) vCenter Server
9 6 (1.79%) ZABBIX
10 4 (1.19%) Mesos
10 4 (1.19%) Prometheus
11 3 (0.90%) Kibana
12 2 (0.60%) logstash
12 2 (0.60%) OSSEC
12 2 (0.60%) Packer
13 1 (0.30%) CFEngine
13 1 (0.30%) Graphite
13 1 (0.30%) rkt
13 1 (0.30%) SELinux
Vendors
1 37 (11.04%) Oracle
2 36 (10.75%) Microsoft
3 34 (10.15%) Google
4 13 (3.88%) Red Hat
5 10 (2.99%) New Relic
6 9 (2.69%) VMware
7 8 (2.39%) Atlassian
8 7 (2.09%) Citrix
8 7 (2.09%) Cloudera
8 7 (2.09%) Hortonworks
8 7 (2.09%) MapR
8 7 (2.09%) Sun
9 6 (1.79%) IBM
9 6 (1.79%) Splunk
9 6 (1.79%) Wyse
10 5 (1.49%) ATG
10 5 (1.49%) Demandware
10 5 (1.49%) hybris
10 5 (1.49%) IBM Sterling
11 4 (1.19%) Facebook