Job Vacancy Trend Salary Trend Salary Histogram Job Locations Skill Sets
Period
to 19 January 2019

The following table provides summary statistics for permanent job vacancies advertised in England with a requirement for TDD skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited TDD over the 6 months to 19 January 2019 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
UK > England
6 months to
19 Jan 2019		 Same period 2018 Same period 2017
Rank 24 19 21
Rank change year-on-year -5 +2 +3
Permanent jobs citing TDD 11,317 14,928 14,026
As % of all permanent IT jobs advertised in England 8.08% 9.16% 8.40%
As % of the Processes & Methodologies category 8.81% 9.98% 9.20%
Number of salaries quoted 9,645 13,006 12,800
England median annual salary £55,000 £52,500 £52,500
Median salary % change year-on-year +4.76% - +5.00%
10th Percentile £34,000 £32,500 £32,500
90th Percentile £87,500 £80,000 £77,500
UK median annual salary £55,000 £50,000 £50,000
% change year-on-year +10.00% - -

TDD 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 England with a requirement for process or methodology skills.

All Process and Methodology Skills
England
Permanent vacancies with a requirement for process or methodology skills 128,420 149,627 152,475
As % of all permanent IT jobs advertised in England 91.69% 91.81% 91.33%
Number of salaries quoted 102,342 121,370 127,073
England median annual salary £52,500 £50,000 £50,000
Median salary % change year-on-year +5.00% - +5.26%
10th Percentile £30,000 £28,750 £28,000
90th Percentile £85,000 £80,000 £80,000
UK median annual salary £52,500 £50,000 £47,500
% change year-on-year +5.00% +5.26% -

TDD
Job Vacancy Trend in England

Job postings citing TDD as a percentage of all IT jobs advertised in England.

Job vacancy trend for TDD in England

TDD
Salary Trend in England

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing TDD in England.

Salary trend for TDD in England

TDD
Salary Histogram in England

The salary distribution of IT jobs citing TDD in England over the 6 months to 19 January 2019.

Salary histogram for TDD in England

TDD
Job Locations in England

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing TDD within the England region over the 6 months to 19 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
London -7 5,507 £67,500 +8.00% 1,025
South East -5 1,999 £50,000 +11.11% 332
North of England -4 1,738 £47,500 +5.56% 351
North West -7 972 £50,000 +11.11% 193
South West -4 796 £50,000 +5.26% 147
Yorkshire +6 652 £45,000 - 131
Midlands -2 649 £45,000 +12.50% 186
East of England -9 634 £52,500 +6.06% 123
West Midlands +18 370 £45,000 +12.50% 105
East Midlands -11 279 £42,500 - 81
North East +12 118 £45,000 - 27
TDD
UK

For the 6 months to 19 January 2019, IT jobs citing TDD 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 England region with a requirement for TDD.

1 8,606 (76.04%) Agile Software Development
2 4,909 (43.38%) C#
3 4,438 (39.22%) BDD
4 4,428 (39.13%) JavaScript
5 4,277 (37.79%) .NET
6 4,261 (37.65%) Java
7 3,211 (28.37%) Scrum
8 3,197 (28.25%) Continuous Integration
9 2,995 (26.46%) MVC
10 2,992 (26.44%) SQL
11 2,793 (24.68%) AngularJS
12 2,704 (23.89%) SQL Server
13 2,626 (23.20%) HTML
14 2,510 (22.18%) ASP.NET
15 2,448 (21.63%) Software Engineering
16 2,437 (21.53%) Git (software)
17 2,337 (20.65%) CSS
18 2,166 (19.14%) Microservices
19 2,031 (17.95%) RESTful
20 2,015 (17.81%) Finance
21 1,987 (17.56%) Test Automation
22 1,842 (16.28%) ASP.NET MVC
23 1,766 (15.60%) DevOps
24 1,730 (15.29%) Amazon AWS
25 1,721 (15.21%) Node.js
26 1,687 (14.91%) ASP.NET Web API
27 1,684 (14.88%) Spring
28 1,652 (14.60%) Microsoft Azure
29 1,558 (13.77%) React
30 1,544 (13.64%) Microsoft

TDD
Co-occurring IT Skills in England 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
1 383 (3.38%) Elasticsearch
2 355 (3.14%) Confluence
3 293 (2.59%) Apache
4 261 (2.31%) Apache Spark
5 258 (2.28%) CMS
6 189 (1.67%) Tomcat
7 145 (1.28%) IIS
8 127 (1.12%) JBoss
9 108 (0.95%) EPiServer
10 92 (0.81%) Umbraco
11 90 (0.80%) Sitecore CMS
12 81 (0.72%) WordPress
13 75 (0.66%) nginx
14 70 (0.62%) WebSphere
15 65 (0.57%) SharePoint
16 63 (0.56%) Cloud Foundry
16 63 (0.56%) Drupal
17 58 (0.51%) WebLogic
18 50 (0.44%) Apache Solr
18 50 (0.44%) NServiceBus
Applications
1 34 (0.30%) Microsoft Office
2 21 (0.19%) Microsoft Excel
3 20 (0.18%) Photoshop
4 18 (0.16%) Microsoft Project
5 16 (0.14%) MS Visio
6 14 (0.12%) Microsoft PowerPoint
7 13 (0.11%) Chatbot
8 8 (0.071%) InVision
9 6 (0.053%) Maya
10 5 (0.044%) Adobe Illustrator
10 5 (0.044%) Open Workbench
11 4 (0.035%) Adobe Creative Suite
11 4 (0.035%) Fireworks
11 4 (0.035%) Mingle
12 3 (0.027%) Spreadsheet
13 2 (0.018%) Snapchat
14 1 (0.009%) HipChat
14 1 (0.009%) InDesign
14 1 (0.009%) InfoPath
14 1 (0.009%) SPSS
Business Applications
1 60 (0.53%) Payment Gateway
2 45 (0.40%) Dynamics CRM
3 32 (0.28%) Magento
4 21 (0.19%) Eloqua
5 9 (0.080%) FastStats
5 9 (0.080%) Oracle BPM
6 6 (0.053%) Distributed Ledger
6 6 (0.053%) Oracle EBS
6 6 (0.053%) Oracle Retail
7 4 (0.035%) Adobe Campaign
7 4 (0.035%) Dynamics AX
7 4 (0.035%) SAP BPC
7 4 (0.035%) SAP CO
7 4 (0.035%) SAP FI
7 4 (0.035%) SAP FI/CO
7 4 (0.035%) SAP FS
7 4 (0.035%) SAP FSCM
7 4 (0.035%) SunGard GMI
8 3 (0.027%) SAP Hybris
9 2 (0.018%) Markit EDM
Cloud Services
1 1,730 (15.29%) Amazon AWS
2 1,652 (14.60%) Microsoft Azure
3 352 (3.11%) GitHub
4 313 (2.77%) SaaS
5 289 (2.55%) Google Cloud Platform
6 250 (2.21%) Serverless
7 211 (1.86%) npm
8 145 (1.28%) Amazon EC2
9 141 (1.25%) Cloud Computing
10 139 (1.23%) PaaS
11 112 (0.99%) OpenShift
12 81 (0.72%) AWS Lambda
13 77 (0.68%) IaaS
14 71 (0.63%) Office 365
15 67 (0.59%) Amazon S3
16 45 (0.40%) NuGet
17 44 (0.39%) Amazon EMR
17 44 (0.39%) Amazon SQS
18 43 (0.38%) G Suite
19 40 (0.35%) Azure Functions
Communications & Networking
1 457 (4.04%) Internet
2 228 (2.01%) HTTP
3 70 (0.62%) Broadband
4 59 (0.52%) TCP/IP
5 52 (0.46%) Hyperconnected
6 51 (0.45%) SSL
7 41 (0.36%) Wireless
8 26 (0.23%) Firewall
9 23 (0.20%) AMQP
10 22 (0.19%) RIP
10 22 (0.19%) Wi-Fi
11 15 (0.13%) Network Security
11 15 (0.13%) VLAN
12 14 (0.12%) Bluetooth
12 14 (0.12%) DNS
12 14 (0.12%) HTTPS
13 12 (0.11%) SSH
14 11 (0.097%) OpenLDAP
15 10 (0.088%) Reverse Proxy
15 10 (0.088%) Skype
Database & Business Intelligence
1 2,704 (23.89%) SQL Server
2 1,382 (12.21%) NoSQL
3 1,048 (9.26%) SQL Server 2016
4 694 (6.13%) MySQL
5 642 (5.67%) Big Data
6 637 (5.63%) MongoDB
7 536 (4.74%) PostgreSQL
8 410 (3.62%) Relational Database
9 279 (2.47%) Hadoop
10 259 (2.29%) Redis
11 232 (2.05%) Apache Cassandra
12 137 (1.21%) SQL Server Integration Services
13 116 (1.03%) Oracle Database
14 113 (1.00%) RDBMS
15 105 (0.93%) Amazon DynamoDB
16 103 (0.91%) Blockchain
17 102 (0.90%) SQL Server Reporting Services
18 85 (0.75%) SQL Server 2012
19 84 (0.74%) Data Warehouse
20 74 (0.65%) Amazon RDS
Development Applications
1 2,437 (21.53%) Git (software)
2 1,278 (11.29%) Jenkins
3 984 (8.69%) JIRA
4 980 (8.66%) Selenium
5 767 (6.78%) Visual Studio
6 667 (5.89%) Maven
7 609 (5.38%) Cucumber
8 524 (4.63%) TeamCity
9 509 (4.50%) JUnit
10 484 (4.28%) Team Foundation Server
11 400 (3.53%) NUnit
12 342 (3.02%) Subversion
13 284 (2.51%) WebDriver
14 281 (2.48%) gulp
15 275 (2.43%) SoapUI
16 273 (2.41%) SpecFlow
17 254 (2.24%) Octopus Deploy
18 252 (2.23%) Gradle
19 247 (2.18%) webpack
20 198 (1.75%) Atlassian Bamboo
General
1 2,015 (17.81%) Finance
2 613 (5.42%) Banking
3 598 (5.28%) Games
4 581 (5.13%) Retail
5 389 (3.44%) Marketing
6 254 (2.24%) Telecoms
7 199 (1.76%) Advertising
8 181 (1.60%) Manufacturing
9 177 (1.56%) Electronics
10 145 (1.28%) Law
11 118 (1.04%) Front Office
12 114 (1.01%) Investment Banking
13 99 (0.87%) Automotive
14 89 (0.79%) Publishing
15 74 (0.65%) Back Office
16 73 (0.65%) Financial Institution
17 64 (0.57%) Legal
18 43 (0.38%) Pharmaceutical
19 38 (0.34%) Music Industry
20 28 (0.25%) Military
Job Titles
1 7,951 (70.26%) Developer
2 2,618 (23.13%) .NET Developer
3 2,144 (18.94%) Java Developer
4 1,982 (17.51%) C# Developer
5 1,619 (14.31%) Senior Developer
6 1,432 (12.65%) C# .NET Developer
7 992 (8.77%) Software Engineer
8 728 (6.43%) Software Developer
9 627 (5.54%) ASP.NET Developer
10 599 (5.29%) C# ASP.NET Developer
11 538 (4.75%) Agile Developer
12 498 (4.40%) Senior Java Developer
13 483 (4.27%) Front End Developer (Client-Side Developer)
14 476 (4.21%) Lead Developer
15 469 (4.14%) JavaScript Developer
16 421 (3.72%) Full Stack Developer
17 403 (3.56%) ASP.NET MVC Developer
18 397 (3.51%) Senior .NET Developer
19 379 (3.35%) Java Engineer
20 343 (3.03%) Architect
Libraries, Frameworks & Software Standards
1 4,277 (37.79%) .NET
2 2,793 (24.68%) AngularJS
3 2,626 (23.20%) HTML
4 2,510 (22.18%) ASP.NET
5 2,337 (20.65%) CSS
6 2,031 (17.95%) RESTful
7 1,842 (16.28%) ASP.NET MVC
8 1,721 (15.21%) Node.js
9 1,687 (14.91%) ASP.NET Web API
10 1,684 (14.88%) Spring
11 1,558 (13.77%) React
12 1,417 (12.52%) Web Services
13 1,321 (11.67%) REST
14 1,146 (10.13%) HTML5
15 1,142 (10.09%) .NET Framework
16 1,033 (9.13%) jQuery
16 1,033 (9.13%) WCF
17 784 (6.93%) Twitter Bootstrap
18 778 (6.87%) Entity Framework
19 691 (6.11%) .NET Core
Miscellaneous
1 1,424 (12.58%) Greenfield Project
2 793 (7.01%) User Experience
3 607 (5.36%) Fintech
4 514 (4.54%) Enterprise Software
5 407 (3.60%) Analytical Skills
6 381 (3.37%) Mobile App
7 266 (2.35%) Self-Motivation
8 231 (2.04%) Algorithms
9 125 (1.10%) Data Structures
10 106 (0.94%) Tandem
11 96 (0.85%) Cloud Native
12 76 (0.67%) Hedge funds
13 74 (0.65%) Foreign Exchange (FX)
13 74 (0.65%) Social Media
14 70 (0.62%) Social Network
15 69 (0.61%) Linux Command Line
16 67 (0.59%) BBC
17 59 (0.52%) Virtual Team
18 56 (0.49%) Blog
19 55 (0.49%) Life Science
Operating Systems
1 940 (8.31%) Linux
2 664 (5.87%) Windows
3 404 (3.57%) Android
4 337 (2.98%) Apple iOS
5 241 (2.13%) Unix
6 69 (0.61%) Windows Server
7 57 (0.50%) CentOS
8 49 (0.43%) Red Hat Enterprise Linux
9 36 (0.32%) Ubuntu
10 23 (0.20%) openSUSE
11 22 (0.19%) Windows 10
12 17 (0.15%) Mac OS X
13 13 (0.11%) Solaris
14 7 (0.062%) Mac OS
15 6 (0.053%) Windows 7
16 5 (0.044%) VMS
17 3 (0.027%) Debian
17 3 (0.027%) watchOS
17 3 (0.027%) Windows Server 2012
18 2 (0.018%) DC/OS
Processes & Methodologies
1 8,606 (76.04%) Agile Software Development
2 4,438 (39.22%) BDD
3 3,211 (28.37%) Scrum
4 3,197 (28.25%) Continuous Integration
5 2,995 (26.46%) MVC
6 2,448 (21.63%) Software Engineering
7 2,166 (19.14%) Microservices
8 1,987 (17.56%) Test Automation
9 1,766 (15.60%) DevOps
10 1,506 (13.31%) OO
11 1,470 (12.99%) Kanban
12 1,097 (9.69%) Continuous Delivery
13 1,081 (9.55%) Unit Testing
14 1,018 (9.00%) Pair Programming
15 989 (8.74%) Problem-Solving
16 963 (8.51%) Web Application Development
17 951 (8.40%) SOLID
18 913 (8.07%) Mentoring
19 836 (7.39%) SDLC
19 836 (7.39%) Web Development
Programming Languages
1 4,909 (43.38%) C#
2 4,428 (39.13%) JavaScript
3 4,261 (37.65%) Java
4 2,992 (26.44%) SQL
5 1,360 (12.02%) Python
6 1,147 (10.14%) Java 8
7 887 (7.84%) Ruby
8 696 (6.15%) C++
9 655 (5.79%) Scala
10 601 (5.31%) PHP
11 489 (4.32%) TypeScript
12 404 (3.57%) T-SQL
13 358 (3.16%) C
14 341 (3.01%) ES6
15 250 (2.21%) PowerShell
16 238 (2.10%) Go
17 150 (1.33%) Bash Shell
18 141 (1.25%) Apple Swift
19 138 (1.22%) Kotlin
20 136 (1.20%) Groovy
Qualifications
1 1,214 (10.73%) Degree
2 440 (3.89%) Computer Science Degree
3 382 (3.38%) Security Cleared
4 233 (2.06%) SC Cleared
5 126 (1.11%) DV Cleared
6 113 (1.00%) ISTQB
7 82 (0.72%) Microsoft Certification
8 65 (0.57%) Numerate Degree
9 57 (0.50%) ISEB
10 32 (0.28%) Master's Degree
11 31 (0.27%) ISTQB Foundation Certification
12 30 (0.27%) PMI Certification
13 22 (0.19%) SAFe Agilist
14 20 (0.18%) MCSE
15 18 (0.16%) CISSP
16 13 (0.11%) MCPD
17 12 (0.11%) AWS Certification
17 12 (0.11%) DBS Check
17 12 (0.11%) PhD
18 10 (0.088%) PRINCE2 Certification
Quality Assurance & Compliance
1 873 (7.71%) QA
2 42 (0.37%) GDPR
3 38 (0.34%) PSD2
4 35 (0.31%) Data Quality
5 19 (0.17%) PMO
6 14 (0.12%) WCAG
7 10 (0.088%) ISO/IEC 27001
8 7 (0.062%) SLA
9 6 (0.053%) PMBOK
10 5 (0.044%) MiFID
11 4 (0.035%) EMIR
11 4 (0.035%) FATCA
12 3 (0.027%) WAI
13 2 (0.018%) FedRAMP
13 2 (0.018%) ISO 9001
13 2 (0.018%) SEPA
13 2 (0.018%) Web Application Security Consortium
14 1 (0.009%) ISO 20022
14 1 (0.009%) ISO 8583
14 1 (0.009%) JTAG
System Software
1 1,284 (11.35%) Docker
2 75 (0.66%) Active Directory
3 46 (0.41%) HDFS
4 45 (0.40%) Apache ZooKeeper
5 41 (0.36%) vSphere
6 37 (0.33%) Firmware
7 32 (0.28%) VirtualBox
8 27 (0.24%) VMware Infrastructure
9 15 (0.13%) Virtual Machines
10 10 (0.088%) Hyper-V
11 9 (0.080%) Apache Flume
12 7 (0.062%) Varnish
13 6 (0.053%) NFS
13 6 (0.053%) Oracle RAC
13 6 (0.053%) Samba
13 6 (0.053%) VMware ESXi
13 6 (0.053%) VMware NSX
14 2 (0.018%) iptables
14 2 (0.018%) Microsoft App-V
15 1 (0.009%) LXC
Systems Management
1 515 (4.55%) Kubernetes
2 359 (3.17%) Ansible
3 253 (2.24%) Puppet
4 246 (2.17%) Terraform
5 221 (1.95%) Opscode Chef
6 78 (0.69%) Kibana
7 60 (0.53%) HP Quality Center
8 44 (0.39%) Salt
9 31 (0.27%) Rancher
10 29 (0.26%) Hadoop YARN
11 26 (0.23%) Grafana
12 20 (0.18%) Mesos
13 18 (0.16%) Prometheus
14 17 (0.15%) HP ALM
15 14 (0.12%) Docker Swarm
15 14 (0.12%) Single Sign-On
16 13 (0.11%) Nagios
16 13 (0.11%) ZABBIX
17 10 (0.088%) SCOM
18 9 (0.080%) logstash
Vendors
1 1,544 (13.64%) Microsoft
2 588 (5.20%) Oracle
3 489 (4.32%) Google
4 179 (1.58%) SAP
5 169 (1.49%) Facebook
5 169 (1.49%) Xamarin
6 130 (1.15%) Sitecore
7 128 (1.13%) Apple
7 128 (1.13%) Atlassian
8 115 (1.02%) WorldPay
9 82 (0.72%) Splunk
10 71 (0.63%) Twitter
11 67 (0.59%) IBM
12 64 (0.57%) Yahoo!
13 63 (0.56%) Sony
14 62 (0.55%) Zend
15 57 (0.50%) Red Hat
16 51 (0.45%) HP
17 50 (0.44%) CA Agile Central
18 48 (0.42%) Adobe