Period
to 22 January 2019

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 22 January 2019 with a comparison to the same period in the previous 2 years.

Open Source
Central London > City of London
6 months to
22 Jan 2019
Same period 2018 Same period 2017
Rank 109 118 113
Rank change year-on-year +9 -5 -5
Permanent jobs citing Open Source 297 281 269
As % of all permanent IT jobs advertised in the City of London 2.88% 2.68% 2.56%
As % of the Processes & Methodologies category 3.13% 2.88% 2.82%
Number of salaries quoted 280 234 240
City of London median annual salary £74,500 £65,000 £62,500
Median salary % change year-on-year +14.62% +4.00% +8.70%
10th Percentile £42,250 £37,500 £41,125
90th Percentile £98,750 £97,125 £87,750
Central London median annual salary £72,500 £65,000 £62,500
% change year-on-year +11.54% +4.00% +7.76%

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 9,474 9,750 9,552
As % of all permanent IT jobs advertised in the City of London 91.87% 93.15% 90.85%
Number of salaries quoted 8,423 8,693 8,702
City of London median annual salary £65,000 £60,000 £60,000
Median salary % change year-on-year +8.33% - +4.35%
10th Percentile £36,800 £36,250 £35,000
90th Percentile £95,000 £95,000 £92,500
Central London median annual salary £65,000 £60,000 £57,500
% change year-on-year +8.33% +4.35% -

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 22 January 2019.

Salary histogram for Open Source in the City of London

Open Source
Job Locations in the City of London

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing Open Source within the City of London region over the 6 months to 22 January 2019. 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
Permanent
IT Job Ads
Median Salary
Past 6 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
Moorgate - 2 £20,750 -
Open Source
Central London

For the 6 months to 22 January 2019, 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.

1 126 (42.42%) Finance
2 119 (40.07%) Linux
3 108 (36.36%) Agile Software Development
4 88 (29.63%) Python
5 83 (27.95%) Java
6 72 (24.24%) DevOps
7 67 (22.56%) JavaScript
8 65 (21.89%) SQL
9 63 (21.21%) AngularJS
10 60 (20.20%) Amazon AWS
11 56 (18.86%) Docker
12 48 (16.16%) Windows
13 46 (15.49%) TDD
13 46 (15.49%) Software Engineering
13 46 (15.49%) Puppet
14 45 (15.15%) Microservices
15 44 (14.81%) Microsoft Azure
15 44 (14.81%) Degree
16 43 (14.48%) Greenfield Project
17 41 (13.80%) HTML
18 40 (13.47%) Scrum
19 37 (12.46%) Ansible
20 36 (12.12%) C#
20 36 (12.12%) Kubernetes
21 35 (11.78%) C++
21 35 (11.78%) Web Services
21 35 (11.78%) Kafka
22 34 (11.45%) Unix
22 34 (11.45%) Information Security
23 33 (11.11%) OO

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 32 (10.77%) Apache Spark
2 12 (4.04%) Confluence
3 8 (2.69%) Apache
4 7 (2.36%) Elasticsearch
5 5 (1.68%) OpenStack
6 3 (1.01%) Apache Solr
7 2 (0.67%) Oracle SOA Suite
8 1 (0.34%) Apache Pig
8 1 (0.34%) CMS
8 1 (0.34%) JBoss
8 1 (0.34%) nginx
8 1 (0.34%) SharePoint
8 1 (0.34%) WebLogic
8 1 (0.34%) WebSphere
Applications
1 3 (1.01%) Microsoft Excel
2 2 (0.67%) Microsoft PowerPoint
3 1 (0.34%) Chatbot
Cloud Services
1 60 (20.20%) Amazon AWS
2 44 (14.81%) Microsoft Azure
3 15 (5.05%) Google Cloud Platform
4 10 (3.37%) Serverless
5 8 (2.69%) SaaS
6 6 (2.02%) Cloud Computing
6 6 (2.02%) GitHub
6 6 (2.02%) Office 365
7 4 (1.35%) AWS CloudFormation
7 4 (1.35%) Virtual Private Cloud
8 3 (1.01%) Akamai
8 3 (1.01%) Amazon EC2
8 3 (1.01%) Amazon EMR
8 3 (1.01%) IaaS
8 3 (1.01%) PaaS
9 2 (0.67%) npm
9 2 (0.67%) OpenShift
10 1 (0.34%) AWS Lambda
10 1 (0.34%) Azure Data Factory
10 1 (0.34%) Cortana Intelligence Suite
Communications & Networking
1 31 (10.44%) Firewall
2 28 (9.43%) TCP/IP
3 10 (3.37%) WAN
4 9 (3.03%) AMQP
5 8 (2.69%) Network Security
6 7 (2.36%) LAN
7 5 (1.68%) Cisco IOS
7 5 (1.68%) DKIM
7 5 (1.68%) DMARC
8 4 (1.35%) Intrusion Detection
9 2 (0.67%) DSL
9 2 (0.67%) FTP
9 2 (0.67%) Internet
9 2 (0.67%) Kerberos
9 2 (0.67%) SSL
9 2 (0.67%) VLAN
9 2 (0.67%) VPN
10 1 (0.34%) HTTP
10 1 (0.34%) SMS
10 1 (0.34%) VoIP
Database & Business Intelligence
1 30 (10.10%) SQL Server
2 29 (9.76%) NoSQL
3 23 (7.74%) Relational Database
4 22 (7.41%) Apache Cassandra
5 21 (7.07%) Big Data
6 15 (5.05%) PostgreSQL
7 13 (4.38%) MySQL
8 9 (3.03%) MongoDB
8 9 (3.03%) RDBMS
9 7 (2.36%) SQL Server Analysis Services
9 7 (2.36%) SQL Server Integration Services
9 7 (2.36%) SQL Server Reporting Services
10 6 (2.02%) Blockchain
10 6 (2.02%) Hadoop
11 5 (1.68%) Amazon Redshift
11 5 (1.68%) Apache Hive
11 5 (1.68%) Data Warehouse
11 5 (1.68%) OpenTSDB
12 4 (1.35%) Amazon DynamoDB
12 4 (1.35%) HBase
Development Applications
1 31 (10.44%) Jenkins
2 22 (7.41%) Git (software)
3 20 (6.73%) JIRA
4 9 (3.03%) TeamCity
5 8 (2.69%) Grunt
5 8 (2.69%) gulp
6 7 (2.36%) Visual Studio
7 6 (2.02%) Karma Test Runner
7 6 (2.02%) Octopus Deploy
8 5 (1.68%) Atlassian Bamboo
8 5 (1.68%) Cucumber
8 5 (1.68%) JUnit
8 5 (1.68%) Metasploit
8 5 (1.68%) Selenium
9 4 (1.35%) JHipster
9 4 (1.35%) Mockito
9 4 (1.35%) Protractor
9 4 (1.35%) Subversion
9 4 (1.35%) Vagrant
10 3 (1.01%) GitLab
General
1 126 (42.42%) Finance
2 28 (9.43%) Banking
3 22 (7.41%) Legal
4 11 (3.70%) Advertising
5 10 (3.37%) Games
6 9 (3.03%) Marketing
7 8 (2.69%) Financial Institution
8 7 (2.36%) Front Office
9 6 (2.02%) Law
10 5 (1.68%) Telecoms
11 4 (1.35%) Publishing
12 2 (0.67%) Retail
13 1 (0.34%) Aerospace
13 1 (0.34%) Automotive
13 1 (0.34%) Investment Banking
13 1 (0.34%) Manufacturing
Job Titles
1 133 (44.78%) Developer
2 39 (13.13%) Java Developer
3 27 (9.09%) C++ Developer
4 24 (8.08%) DevOps Engineer
5 21 (7.07%) Administrator
6 19 (6.40%) Security Manager
6 19 (6.40%) Security Officer
7 17 (5.72%) Linux Administrator
7 17 (5.72%) Linux Systems Administrator
8 16 (5.39%) Architect
8 16 (5.39%) Linux Engineer
8 16 (5.39%) Linux Systems Engineer
9 15 (5.05%) J2EE Developer
9 15 (5.05%) Java/J2EE Developer
10 14 (4.71%) C# Developer
11 13 (4.38%) Full Stack Developer
11 13 (4.38%) Lead Developer
12 12 (4.04%) Front End Developer (Client-Side Developer)
13 11 (3.70%) JavaScript Developer
13 11 (3.70%) Scrum Master
Libraries, Frameworks & Software Standards
1 63 (21.21%) AngularJS
2 41 (13.80%) HTML
3 35 (11.78%) Kafka
3 35 (11.78%) Web Services
4 32 (10.77%) Elastic Stack
4 32 (10.77%) Spring
5 31 (10.44%) React
6 29 (9.76%) CSS
7 28 (9.43%) .NET
8 26 (8.75%) REST
9 21 (7.07%) Node.js
10 19 (6.40%) JMS
11 16 (5.39%) ASP.NET Web API
11 16 (5.39%) J2EE
12 15 (5.05%) DHTML
12 15 (5.05%) Ehcache
12 15 (5.05%) Java EE
13 13 (4.38%) Spring Boot
14 12 (4.04%) ASP.NET
15 11 (3.70%) Ajax
Miscellaneous
1 43 (14.48%) Greenfield Project
2 32 (10.77%) Fintech
3 30 (10.10%) Hedge funds
4 28 (9.43%) User Experience
5 16 (5.39%) Derivative
6 11 (3.70%) Management Information System
7 9 (3.03%) Data Centre
8 8 (2.69%) Analytical Skills
8 8 (2.69%) Mobile App
9 7 (2.36%) Public Cloud
10 5 (1.68%) Algorithms
10 5 (1.68%) BYOD
10 5 (1.68%) Enterprise Software
11 4 (1.35%) Blog
11 4 (1.35%) Clustering
11 4 (1.35%) Cyber Kill Chain
11 4 (1.35%) Data Structures
11 4 (1.35%) Equities
11 4 (1.35%) Hybrid Cloud
11 4 (1.35%) NHS
Operating Systems
1 119 (40.07%) Linux
2 48 (16.16%) Windows
3 34 (11.45%) Unix
4 17 (5.72%) CentOS
5 15 (5.05%) Solaris
6 8 (2.69%) Red Hat Enterprise Linux
7 4 (1.35%) AIX
7 4 (1.35%) Android
7 4 (1.35%) HPUX
7 4 (1.35%) Windows Server 2003
7 4 (1.35%) Windows Server 2008
7 4 (1.35%) Windows Server 2012
7 4 (1.35%) Windows XP
8 3 (1.01%) Amazon Linux
8 3 (1.01%) Apple iOS
8 3 (1.01%) Ubuntu
8 3 (1.01%) Windows 7
9 2 (0.67%) Fedora
9 2 (0.67%) Windows 10
10 1 (0.34%) Mac OS X
Processes & Methodologies
1 108 (36.36%) Agile Software Development
2 72 (24.24%) DevOps
3 46 (15.49%) Software Engineering
3 46 (15.49%) TDD
4 45 (15.15%) Microservices
5 40 (13.47%) Scrum
6 34 (11.45%) Information Security
7 33 (11.11%) OO
8 31 (10.44%) Front End Development
9 29 (9.76%) Mathematics
9 29 (9.76%) SIEM
10 27 (9.09%) OOP
11 26 (8.75%) Cybersecurity
12 25 (8.42%) Migration
13 24 (8.08%) Configuration Management
13 24 (8.08%) Data Encryption
13 24 (8.08%) Penetration Testing
14 23 (7.74%) Continuous Delivery
14 23 (7.74%) Continuous Improvement
15 22 (7.41%) Continuous Integration
Programming Languages
1 88 (29.63%) Python
2 83 (27.95%) Java
3 67 (22.56%) JavaScript
4 65 (21.89%) SQL
5 36 (12.12%) C#
6 35 (11.78%) C++
7 27 (9.09%) PowerShell
8 18 (6.06%) Bash Shell
9 16 (5.39%) Scala
10 15 (5.05%) Ruby
10 15 (5.05%) T-SQL
11 14 (4.71%) PHP
12 11 (3.70%) ES6
13 8 (2.69%) TypeScript
14 6 (2.02%) Java 8
14 6 (2.02%) VB.NET
15 5 (1.68%) Go
15 5 (1.68%) PHP 7
15 5 (1.68%) PL/SQL
16 4 (1.35%) Perl
Qualifications
1 44 (14.81%) Degree
2 23 (7.74%) CISM
2 23 (7.74%) CISSP
3 19 (6.40%) Numerate Degree
4 6 (2.02%) Security Cleared
5 5 (1.68%) Computer Science Degree
5 5 (1.68%) SC Cleared
6 1 (0.34%) AWS Certification
6 1 (0.34%) CEH
6 1 (0.34%) CFCE
6 1 (0.34%) EnCE
6 1 (0.34%) GCFA
6 1 (0.34%) GCFE
6 1 (0.34%) GREM
6 1 (0.34%) Microsoft Certification
6 1 (0.34%) PhD
6 1 (0.34%) RHCE
6 1 (0.34%) RHCSA
6 1 (0.34%) TOGAF Certification
Quality Assurance & Compliance
1 20 (6.73%) GDPR
2 19 (6.40%) MiFID
3 12 (4.04%) QA
4 3 (1.01%) Data Quality
5 2 (0.67%) SLA
System Software
1 56 (18.86%) Docker
2 19 (6.40%) Snort
3 11 (3.70%) Active Directory
4 8 (2.69%) HDFS
4 8 (2.69%) Hyper-V
5 7 (2.36%) VMware Infrastructure
6 5 (1.68%) KVM
7 2 (0.67%) Apache ZooKeeper
7 2 (0.67%) GlusterFS
7 2 (0.67%) Virtual Machines
8 1 (0.34%) iptables
8 1 (0.34%) Virtual Desktop
Systems Management
1 46 (15.49%) Puppet
2 37 (12.46%) Ansible
3 36 (12.12%) Kubernetes
4 25 (8.42%) Opscode Chef
5 20 (6.73%) Mesos
6 19 (6.40%) OSSEC
7 14 (4.71%) Terraform
8 8 (2.69%) Salt
9 7 (2.36%) SCCM
10 5 (1.68%) Nessus
10 5 (1.68%) Network Intrusion Detection System
10 5 (1.68%) OpenVAS
10 5 (1.68%) QRadar
10 5 (1.68%) SCOM
11 4 (1.35%) Graphite
11 4 (1.35%) logstash
11 4 (1.35%) Oozie
12 3 (1.01%) Grafana
12 3 (1.01%) Kibana
12 3 (1.01%) Prometheus
Vendors
1 26 (8.75%) Microsoft
2 20 (6.73%) Google
3 15 (5.05%) NetApp
3 15 (5.05%) Red Hat
3 15 (5.05%) Terracotta
4 14 (4.71%) Oracle
5 9 (3.03%) Splunk
5 9 (3.03%) Sun
5 9 (3.03%) VMware
6 6 (2.02%) Cisco
7 5 (1.68%) Palo Alto
7 5 (1.68%) Qualys
7 5 (1.68%) Rapid7
7 5 (1.68%) Tripwire
8 3 (1.01%) Apple
8 3 (1.01%) Citrix
8 3 (1.01%) ForgeRock
8 3 (1.01%) Hortonworks
8 3 (1.01%) SaltStack
8 3 (1.01%) Zend