Period
to 14 November 2019

The following table provides summary statistics for permanent job vacancies advertised in 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 14 November 2019 with a comparison to the same period in the previous 2 years.

Open Source
England > London
6 months to
14 Nov 2019
Same period 2018 Same period 2017
Rank 100 90 92
Rank change year-on-year -10 +2 -6
Permanent jobs citing Open Source 1,712 2,387 2,731
As % of all permanent IT jobs advertised in London 3.12% 3.53% 3.60%
As % of the Processes & Methodologies category 3.36% 3.82% 3.84%
Number of salaries quoted 1,258 1,669 2,274
London median annual salary £72,500 £70,000 £67,500
Median salary % change year-on-year +3.57% +3.70% +3.85%
10th Percentile £41,000 £42,000 £41,750
90th Percentile £115,000 £95,000 £95,000
England median annual salary £60,000 £60,000 £57,500
% change year-on-year - +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 London with a requirement for process or methodology skills.

All Process and Methodology Skills
London
Permanent vacancies with a requirement for process or methodology skills 51,006 62,455 71,088
As % of all permanent IT jobs advertised in London 93.09% 92.46% 93.71%
Number of salaries quoted 41,079 50,567 54,751
London median annual salary £65,000 £62,500 £60,000
Median salary % change year-on-year +4.00% +4.17% +4.35%
10th Percentile £36,250 £35,000 £35,000
90th Percentile £100,000 £95,000 £90,000
England median annual salary £52,500 £52,500 £50,000
% change year-on-year - +5.00% -

Open Source
Job Vacancy Trend in London

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

Job vacancy trend for Open Source in London

Open Source
Salary Trend in London

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

Salary trend for Open Source in London

Open Source
Salary Histogram in London

The salary distribution of IT jobs citing Open Source in London over the 6 months to 14 November 2019.

Salary histogram for Open Source in London

Open Source
Job Locations in 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 London region over the 6 months to 14 November 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
Central London -9 355 £72,500 +3.57% 97
South London -17 47 £70,000 - 6
West London -12 46 £52,500 -12.50% 32
East London -9 5 £71,000 +18.33% 16
North London +2 3 £66,640 -4.80%
Open Source
England

For the 6 months to 14 November 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 London region with a requirement for Open Source.

1 963 (56.25%) Agile Software Development
2 723 (42.23%) Java
3 685 (40.01%) AWS
4 672 (39.25%) DevOps
5 627 (36.62%) Python
6 568 (33.18%) Docker
7 451 (26.34%) Azure
8 441 (25.76%) Kubernetes
9 436 (25.47%) Linux
10 431 (25.18%) Finance
11 412 (24.07%) Software Engineering
12 390 (22.78%) JavaScript
13 362 (21.14%) Microservices
14 348 (20.33%) SQL
15 309 (18.05%) Git (software)
16 301 (17.58%) Continuous Integration
17 292 (17.06%) C#
18 279 (16.30%) Jenkins
19 278 (16.24%) Degree
20 274 (16.00%) Ansible
21 272 (15.89%) TDD
22 257 (15.01%) Analytics
23 254 (14.84%) GCP
24 247 (14.43%) Scrum
25 239 (13.96%) Computer Science
26 238 (13.90%) Problem-Solving
27 237 (13.84%) Puppet
28 231 (13.49%) Mentoring
29 227 (13.26%) Web Services
30 216 (12.62%) Terraform

Open Source
Co-occurring IT Skills in 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
1 102 (5.96%) Apache Spark
2 76 (4.44%) Elasticsearch
3 74 (4.32%) Apache
4 64 (3.74%) Confluence
5 40 (2.34%) nginx
6 37 (2.16%) IIS
7 34 (1.99%) Tomcat
8 31 (1.81%) CMS
9 26 (1.52%) OpenStack
10 21 (1.23%) Drupal
11 17 (0.99%) Ethereum
12 16 (0.93%) WordPress
13 14 (0.82%) SharePoint
14 13 (0.76%) Hyperledger
15 11 (0.64%) Apache Airflow
15 11 (0.64%) Headless CMS
15 11 (0.64%) WebSphere
16 9 (0.53%) Jupyter
16 9 (0.53%) Zope
17 8 (0.47%) Oracle SOA Suite
Applications
1 24 (1.40%) Microsoft Excel
2 17 (0.99%) Microsoft Office
3 7 (0.41%) AutoCAD
3 7 (0.41%) Sketch
4 6 (0.35%) Figma
5 4 (0.23%) InVision
5 4 (0.23%) Marvel
5 4 (0.23%) MS Visio
6 3 (0.18%) SPSS
7 2 (0.12%) Spreadsheet
8 1 (0.058%) Adobe Creative Suite
8 1 (0.058%) Chatbot
8 1 (0.058%) Microsoft PowerPoint
8 1 (0.058%) Photoshop
8 1 (0.058%) Stata
Business Applications
1 23 (1.34%) Distributed Ledger
1 23 (1.34%) FINCAD Analytics
2 15 (0.88%) R3 Corda
3 11 (0.64%) Magento
4 5 (0.29%) PolarLake
5 3 (0.18%) OpenCart
5 3 (0.18%) Oracle Applications
5 3 (0.18%) osCommerce
5 3 (0.18%) Payment Gateway
5 3 (0.18%) SAP Business One
6 2 (0.12%) Dynamics CRM
6 2 (0.12%) Oracle BPM
6 2 (0.12%) SAP Hybris
6 2 (0.12%) SAP S/4HANA
7 1 (0.058%) SAP ERP
Cloud Services
1 685 (40.01%) AWS
2 451 (26.34%) Azure
3 254 (14.84%) GCP
4 115 (6.72%) GitHub
5 92 (5.37%) Serverless
6 61 (3.56%) AWS Lambda
7 56 (3.27%) AWS CloudFormation
8 46 (2.69%) Amazon EC2
9 43 (2.51%) OpenShift
9 43 (2.51%) PaaS
10 38 (2.22%) Slack
11 37 (2.16%) Cloud Computing
11 37 (2.16%) SaaS
12 35 (2.04%) Amazon ECS
13 34 (1.99%) Amazon S3
13 34 (1.99%) CloudBees
14 32 (1.87%) Office 365
15 27 (1.58%) Amazon SQS
16 24 (1.40%) Power Platform
17 22 (1.29%) npm
Communications & Networking
1 80 (4.67%) Firewall
2 43 (2.51%) Internet
3 33 (1.93%) DNS
4 31 (1.81%) TCP/IP
5 23 (1.34%) VPN
6 21 (1.23%) HTTP
7 20 (1.17%) Network Security
7 20 (1.17%) SSL
8 9 (0.53%) BGP
8 9 (0.53%) MPLS
8 9 (0.53%) OSPF
8 9 (0.53%) Peer-to-Peer Networking
9 8 (0.47%) Broadband
9 8 (0.47%) IPFS
9 8 (0.47%) LAN
9 8 (0.47%) Multicast
9 8 (0.47%) Spanning Tree
10 7 (0.41%) GPON
10 7 (0.41%) Kerberos
10 7 (0.41%) Wi-Fi
Database & Business Intelligence
1 173 (10.11%) Big Data
2 141 (8.24%) NoSQL
3 134 (7.83%) SQL Server
4 133 (7.77%) PostgreSQL
5 96 (5.61%) Hadoop
6 90 (5.26%) MongoDB
7 87 (5.08%) MySQL
8 72 (4.21%) Relational Database
9 53 (3.10%) Blockchain
10 52 (3.04%) Redis
11 46 (2.69%) Data Warehouse
12 35 (2.04%) Apache Hive
13 32 (1.87%) Amazon RDS
13 32 (1.87%) Azure SQL Database
14 31 (1.81%) Amazon DynamoDB
15 28 (1.64%) Data Lake
16 25 (1.46%) Amazon Aurora
17 24 (1.40%) Power BI
17 24 (1.40%) RDBMS
18 22 (1.29%) Amazon Athena
Development Applications
1 309 (18.05%) Git (software)
2 279 (16.30%) Jenkins
3 99 (5.78%) TeamCity
4 97 (5.67%) JIRA
5 80 (4.67%) Cucumber
6 71 (4.15%) Bitbucket
7 65 (3.80%) Octopus Deploy
8 61 (3.56%) JUnit
8 61 (3.56%) Selenium
9 59 (3.45%) Travis CI
10 56 (3.27%) Maven
10 56 (3.27%) Team Foundation Server
11 47 (2.75%) Atlassian Bamboo
12 45 (2.63%) Artifactory
13 42 (2.45%) IBM UrbanCode
14 40 (2.34%) GitLab
15 36 (2.10%) SpecFlow
16 33 (1.93%) Gradle
17 32 (1.87%) Visual Studio
18 31 (1.81%) Bitbucket Server
General
1 431 (25.18%) Finance
2 137 (8.00%) Banking
3 98 (5.72%) Front Office
4 90 (5.26%) Marketing
5 77 (4.50%) Public Sector
6 71 (4.15%) Games
7 66 (3.86%) Retail
8 40 (2.34%) Telecoms
9 24 (1.40%) Law
10 20 (1.17%) Billing
11 19 (1.11%) Legal
12 17 (0.99%) Manufacturing
13 14 (0.82%) Advertising
14 12 (0.70%) Electronics
14 12 (0.70%) Publishing
15 11 (0.64%) Aerospace
15 11 (0.64%) Investment Banking
16 8 (0.47%) Financial Institution
17 3 (0.18%) French Language
17 3 (0.18%) Music Industry
Job Titles
1 607 (35.46%) Developer
2 234 (13.67%) DevOps Engineer
3 143 (8.35%) Java Developer
4 131 (7.65%) Architect
5 111 (6.48%) Consultant
6 109 (6.37%) Senior Developer
7 100 (5.84%) Software Engineer
8 85 (4.96%) Software Developer
9 71 (4.15%) AWS Engineer
10 67 (3.91%) .NET Developer
11 61 (3.56%) C# Developer
12 58 (3.39%) Solutions Architect
13 55 (3.21%) Analyst
13 55 (3.21%) Platform Engineer
14 54 (3.15%) Senior DevOps
15 51 (2.98%) Java Engineer
15 51 (2.98%) JavaScript Developer
16 48 (2.80%) React Developer
17 47 (2.75%) Full Stack Developer
18 45 (2.63%) Front End Developer (Client-Side Developer)
Libraries, Frameworks & Software Standards
1 227 (13.26%) Web Services
2 207 (12.09%) React
3 195 (11.39%) Node.js
4 183 (10.69%) REST
5 168 (9.81%) .NET
6 167 (9.75%) AngularJS
6 167 (9.75%) CSS
7 165 (9.64%) HTML
8 140 (8.18%) RESTful
9 115 (6.72%) Spring
10 108 (6.31%) Kafka
11 92 (5.37%) Elastic Stack
11 92 (5.37%) HTML5
12 88 (5.14%) J2EE
13 62 (3.62%) Spring Boot
14 57 (3.33%) ASP.NET
15 50 (2.92%) JSON
16 47 (2.75%) Vue.js
17 46 (2.69%) ASP.NET Web API
18 44 (2.57%) XML
Miscellaneous
1 96 (5.61%) Analytical Skills
2 93 (5.43%) User Experience
3 87 (5.08%) Public Cloud
4 86 (5.02%) Algorithms
4 86 (5.02%) Cloud Native
5 82 (4.79%) Derivative
5 82 (4.79%) Fixed Income
6 75 (4.38%) Equities
7 74 (4.32%) Greenfield Project
8 62 (3.62%) Hedge funds
9 61 (3.56%) Mobile App
10 51 (2.98%) Data Centre
10 51 (2.98%) Equity Derivative
10 51 (2.98%) PlayStation
11 42 (2.45%) Data Structures
11 42 (2.45%) Exotic Derivative
12 41 (2.39%) Blog
13 31 (1.81%) Foreign Exchange (FX)
14 28 (1.64%) Management Information System
14 28 (1.64%) Self-Motivation
Operating Systems
1 436 (25.47%) Linux
2 151 (8.82%) Windows
3 62 (3.62%) Android
3 62 (3.62%) Apple iOS
4 61 (3.56%) Unix
5 48 (2.80%) CentOS
6 38 (2.22%) Red Hat Enterprise Linux
7 35 (2.04%) Mesosphere
8 34 (1.99%) Windows Server
9 28 (1.64%) Ubuntu
10 24 (1.40%) Mac OS X
11 17 (0.99%) Debian
12 10 (0.58%) Windows 10
13 9 (0.53%) Mac OS
14 5 (0.29%) CoreOS
14 5 (0.29%) Fedora
15 4 (0.23%) Data ONTAP
16 3 (0.18%) Windows 7
16 3 (0.18%) Windows Server 2012
17 2 (0.12%) FreeBSD
Processes & Methodologies
1 963 (56.25%) Agile Software Development
2 672 (39.25%) DevOps
3 412 (24.07%) Software Engineering
4 362 (21.14%) Microservices
5 301 (17.58%) Continuous Integration
6 272 (15.89%) TDD
7 257 (15.01%) Analytics
8 247 (14.43%) Scrum
9 239 (13.96%) Computer Science
10 238 (13.90%) Problem-Solving
11 231 (13.49%) Mentoring
12 190 (11.10%) Test Automation
13 189 (11.04%) Configuration Management
14 187 (10.92%) BDD
15 185 (10.81%) OO
16 162 (9.46%) Artificial Intelligence
17 133 (7.77%) Continuous Delivery
18 114 (6.66%) Migration
19 110 (6.43%) Fintech
20 108 (6.31%) Infrastructure as Code
Programming Languages
1 723 (42.23%) Java
2 627 (36.62%) Python
3 390 (22.78%) JavaScript
4 348 (20.33%) SQL
5 292 (17.06%) C#
6 169 (9.87%) Go
7 164 (9.58%) C++
8 157 (9.17%) Ruby
9 142 (8.29%) PHP
10 135 (7.89%) Bash Shell
11 106 (6.19%) Kotlin
12 104 (6.07%) Scala
13 88 (5.14%) PowerShell
14 77 (4.50%) C
15 69 (4.03%) Java 8
16 61 (3.56%) T-SQL
17 56 (3.27%) TypeScript
18 42 (2.45%) ES6
19 41 (2.39%) R
20 29 (1.69%) Apple Swift
Qualifications
1 278 (16.24%) Degree
2 142 (8.29%) Computer Science Degree
3 53 (3.10%) Security Cleared
4 38 (2.22%) PhD
5 26 (1.52%) SC Cleared
6 17 (0.99%) Master's Degree
7 15 (0.88%) JNCIE
7 15 (0.88%) JNCIP
8 13 (0.76%) AWS Certification
9 11 (0.64%) ISEB
9 11 (0.64%) ISTQB
10 9 (0.53%) Cisco Certification
10 9 (0.53%) DV Cleared
10 9 (0.53%) ISTQB Foundation Certification
11 6 (0.35%) CISSP
11 6 (0.35%) Microsoft Certification
11 6 (0.35%) SANS
12 5 (0.29%) CCNA
13 4 (0.23%) CCNP
13 4 (0.23%) RHCE
Quality Assurance & Compliance
1 144 (8.41%) QA
2 36 (2.10%) Data Quality
3 12 (0.70%) GDPR
4 7 (0.41%) NIST
5 6 (0.35%) ISO/IEC 27001
5 6 (0.35%) PCI DSS
6 3 (0.18%) COBIT
7 2 (0.12%) PSD2
8 1 (0.058%) MiFID
8 1 (0.058%) SLA
System Software
1 568 (33.18%) Docker
2 39 (2.28%) Active Directory
3 18 (1.05%) VMware Infrastructure
4 16 (0.93%) KVM
5 15 (0.88%) BIND 9
6 14 (0.82%) Hyper-V
7 10 (0.58%) Virtual Machines
7 10 (0.58%) vSphere
8 8 (0.47%) Oracle RAC
9 6 (0.35%) Apache ZooKeeper
10 5 (0.29%) etcd
10 5 (0.29%) Varnish
11 4 (0.23%) Ceph
11 4 (0.23%) Firmware
11 4 (0.23%) Gluster
11 4 (0.23%) Postfix
11 4 (0.23%) VMware NSX
12 3 (0.18%) HDFS
12 3 (0.18%) iptables
13 2 (0.12%) VMware ESXi
Systems Management
1 441 (25.76%) Kubernetes
2 274 (16.00%) Ansible
3 237 (13.84%) Puppet
4 216 (12.62%) Terraform
5 161 (9.40%) Opscode Chef
6 85 (4.96%) Prometheus
7 63 (3.68%) Consul
8 59 (3.45%) Salt
9 42 (2.45%) Grafana
10 39 (2.28%) Packer
11 36 (2.10%) Rancher
12 35 (2.04%) Automic
13 34 (1.99%) Mesos
14 32 (1.87%) Docker Swarm
15 22 (1.29%) Nagios
16 18 (1.05%) Graphite
17 15 (0.88%) RANCID
18 12 (0.70%) CA Service Virtualization
19 11 (0.64%) Istio
19 11 (0.64%) Kibana
Vendors
1 184 (10.75%) Google
2 181 (10.57%) Microsoft
3 68 (3.97%) Oracle
4 57 (3.33%) Splunk
5 52 (3.04%) Red Hat
6 49 (2.86%) VMware
7 31 (1.81%) Atlassian
8 29 (1.69%) Bloomberg
9 25 (1.46%) Cisco
10 23 (1.34%) Tableau
11 22 (1.29%) Symantec
12 20 (1.17%) SAP
13 17 (0.99%) Juniper
14 16 (0.93%) MuleSoft
15 15 (0.88%) Apple
15 15 (0.88%) EMC
15 15 (0.88%) Salesforce.com
16 13 (0.76%) Black Duck
16 13 (0.76%) Palo Alto
17 12 (0.70%) Perfecto Mobile