Period
to 27 February 2021

The following table provides summary statistics for permanent job vacancies advertised in the City of London with a requirement for SOLID skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited SOLID over the 6 months to 27 February 2021 with a comparison to the same period in the previous 2 years.

SOLID Principles
Central London > City of London
6 months to
27 Feb 2021
Same period 2020 Same period 2019
Rank 85 182 162
Rank change year-on-year +97 -20 +51
Permanent jobs citing SOLID 158 117 181
As % of all permanent jobs advertised in the City of London 3.39% 1.29% 1.74%
As % of the Processes & Methodologies category 3.56% 1.38% 1.87%
Number of salaries quoted 147 127 168
Median annual salary £82,500 £70,000 £70,000
Median salary % change year-on-year +17.86% - +12.00%
10th Percentile £51,250 £45,000 £35,650
90th Percentile £88,750 £93,750 £90,375
Central London median annual salary £82,500 £75,000 £70,000
% change year-on-year +10.00% +7.14% +12.00%

SOLID 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 4,441 8,473 9,689
As % of all permanent IT jobs advertised in the City of London 95.36% 93.76% 92.97%
Number of salaries quoted 3,895 7,396 8,699
Median annual salary £72,500 £67,500 £65,000
Median salary % change year-on-year +7.41% +3.85% +5.69%
10th Percentile £45,000 £38,750 £36,250
90th Percentile £105,000 £97,500 £95,650
Central London median annual salary £70,000 £67,500 £65,000
% change year-on-year +3.70% +3.85% +8.33%

SOLID
Job Vacancy Trend in the City of London

Job postings citing SOLID as a proportion of all IT jobs advertised in the City of London.

Job vacancy trend for SOLID in the City of London

SOLID
Salary Trend in the City of London

3-month moving average salary quoted in jobs citing SOLID in the City of London.

Salary trend for SOLID in the City of London

SOLID
Salary Histogram in the City of London

Salary distribution for jobs citing SOLID in the City of London over the 6 months to 27 February 2021.

Salary histogram for SOLID in the City of London

For the 6 months to 27 February 2021, IT jobs citing SOLID 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 SOLID.

1 136 (86.08%) .NET
2 131 (82.91%) Agile Software Development
3 130 (82.28%) C#
4 112 (70.89%) JavaScript
5 111 (70.25%) OO
5 111 (70.25%) .NET Core
6 109 (68.99%) Microservices
6 109 (68.99%) Azure
7 108 (68.35%) DevOps
8 105 (66.46%) SQL
8 105 (66.46%) CSS
9 100 (63.29%) MVC
10 99 (62.66%) React
11 97 (61.39%) Continuous Integration
12 93 (58.86%) ASP.NET Web API
13 92 (58.23%) .NET Framework
14 91 (57.59%) Test Automation
15 90 (56.96%) SQL Server
16 89 (56.33%) SOA
17 86 (54.43%) Deployment Automation
18 85 (53.80%) Entity Framework
19 84 (53.16%) Twitter Bootstrap
20 81 (51.27%) N-Tier
20 81 (51.27%) UML
20 81 (51.27%) Web Services
20 81 (51.27%) jQuery
21 79 (50.00%) Don't repeat yourself (DRY)
22 77 (48.73%) Nintex
22 77 (48.73%) SharePoint
23 70 (44.30%) PaaS

SOLID
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 77 (48.73%) SharePoint
2 11 (6.96%) Moodle
3 3 (1.90%) Elasticsearch
4 1 (0.63%) Apache
Applications
1 3 (1.90%) InVision
1 3 (1.90%) Sketch
2 2 (1.27%) Microsoft Excel
Business Applications
1 64 (40.51%) Dynamics CRM
2 17 (10.76%) Sparx Enterprise Architect
Cloud Services
1 109 (68.99%) Azure
2 70 (44.30%) PaaS
3 50 (31.65%) Azure Active Directory
4 38 (24.05%) AWS
5 13 (8.23%) Dynamics 365
6 10 (6.33%) Azure Functions
6 10 (6.33%) NuGet
6 10 (6.33%) Serverless
7 5 (3.16%) npm
7 5 (3.16%) Veeva
8 4 (2.53%) Amazon EC2
9 1 (0.63%) GCP
9 1 (0.63%) OpenShift
Communications & Networking
1 1 (0.63%) HTTP
Database & Business Intelligence
1 90 (56.96%) SQL Server
2 34 (21.52%) NoSQL
3 15 (9.49%) MySQL
4 11 (6.96%) Big Data
5 10 (6.33%) Azure SQL Database
6 4 (2.53%) Amazon RDS
6 4 (2.53%) PostgreSQL
7 3 (1.90%) Amazon DynamoDB
8 1 (0.63%) Apache Hive
8 1 (0.63%) Hadoop
Development Applications
1 69 (43.67%) Team Foundation Server
2 64 (40.51%) Visual Studio Team System
3 19 (12.03%) Git (software)
4 8 (5.06%) NUnit
5 5 (3.16%) Jenkins
5 5 (3.16%) Selenium
6 4 (2.53%) Octopus Deploy
6 4 (2.53%) Rhino Mocks
6 4 (2.53%) TeamCity
7 3 (1.90%) Cypress.io
7 3 (1.90%) JIRA
7 3 (1.90%) PostCSS
8 2 (1.27%) git-flow
8 2 (1.27%) GitLab
8 2 (1.27%) Protractor
8 2 (1.27%) Xcode
9 1 (0.63%) Moq
General
1 42 (26.58%) Finance
2 13 (8.23%) Back Office
3 4 (2.53%) Front Office
4 3 (1.90%) Housing Association
Job Titles
1 120 (75.95%) Developer
2 86 (54.43%) C# Developer
3 66 (41.77%) Azure Developer
3 66 (41.77%) Senior Developer
4 61 (38.61%) Senior C# Developer
5 59 (37.34%) .NET Developer
6 45 (28.48%) C# .NET Developer
7 44 (27.85%) Senior .NET Developer
8 42 (26.58%) Senior C# .NET Developer
9 39 (24.68%) ASP.NET MVC Developer
9 39 (24.68%) Senior SQL Developer
9 39 (24.68%) SQL Developer
10 20 (12.66%) Full Stack Developer
11 17 (10.76%) Architect
11 17 (10.76%) Digital Architect
11 17 (10.76%) Digital Solutions Architect
11 17 (10.76%) Solutions Architect
12 11 (6.96%) Salesforce Developer
13 9 (5.70%) Lead Architect
13 9 (5.70%) Senior Architect
Libraries, Frameworks & Software Standards
1 136 (86.08%) .NET
2 111 (70.25%) .NET Core
3 105 (66.46%) CSS
4 99 (62.66%) React
5 93 (58.86%) ASP.NET Web API
6 92 (58.23%) .NET Framework
7 85 (53.80%) Entity Framework
8 84 (53.16%) Twitter Bootstrap
9 81 (51.27%) jQuery
9 81 (51.27%) Web Services
10 34 (21.52%) AngularJS
11 27 (17.09%) REST
12 23 (14.56%) HTML
13 16 (10.13%) JSON
14 14 (8.86%) ASP.NET
15 12 (7.59%) Node.js
15 12 (7.59%) RESTful
16 9 (5.70%) Spring
17 8 (5.06%) ASP.NET MVC
18 7 (4.43%) Vue.js
Miscellaneous
1 81 (51.27%) N-Tier
2 45 (28.48%) Analytical Skills
3 39 (24.68%) Reinsurance
4 10 (6.33%) User Experience
5 4 (2.53%) e-Learning
5 4 (2.53%) Hybrid Cloud
5 4 (2.53%) SCORM
6 2 (1.27%) Algorithms
7 1 (0.63%) Data Centre
7 1 (0.63%) Data Structures
7 1 (0.63%) Greenfield Project
7 1 (0.63%) Wiki
Operating Systems
1 5 (3.16%) Android
2 3 (1.90%) Apple iOS
Processes & Methodologies
1 131 (82.91%) Agile Software Development
2 111 (70.25%) OO
3 109 (68.99%) Microservices
4 108 (68.35%) DevOps
5 100 (63.29%) MVC
6 97 (61.39%) Continuous Integration
7 91 (57.59%) Test Automation
8 89 (56.33%) SOA
9 86 (54.43%) Deployment Automation
10 81 (51.27%) UML
11 79 (50.00%) Don't repeat yourself (DRY)
12 64 (40.51%) CRM
13 62 (39.24%) Mentoring
14 50 (31.65%) Migration
15 45 (28.48%) TDD
16 31 (19.62%) Waterfall
17 18 (11.39%) Scrum
18 17 (10.76%) TOGAF
18 17 (10.76%) Unit Testing
18 17 (10.76%) Zachman Framework
Programming Languages
1 130 (82.28%) C#
2 112 (70.89%) JavaScript
3 105 (66.46%) SQL
4 69 (43.67%) T-SQL
5 67 (42.41%) PowerShell
6 12 (7.59%) Java
7 11 (6.96%) PHP
8 9 (5.70%) TypeScript
9 6 (3.80%) Java 8
10 5 (3.16%) Python
10 5 (3.16%) SOQL
11 4 (2.53%) R
12 3 (1.90%) ES6
12 3 (1.90%) ES7
12 3 (1.90%) Go
12 3 (1.90%) Kotlin
12 3 (1.90%) Scala
12 3 (1.90%) VB.NET
13 2 (1.27%) VBA
Qualifications
1 53 (33.54%) Degree
2 11 (6.96%) Computer Science Degree
3 3 (1.90%) SANS
Quality Assurance & Compliance
1 6 (3.80%) QA
2 3 (1.90%) WCAG
System Software
1 17 (10.76%) Docker
Systems Management
1 70 (44.30%) Terraform
2 50 (31.65%) Opscode Chef
3 10 (6.33%) Kubernetes
4 3 (1.90%) Ansible
Vendors
1 77 (48.73%) Nintex
2 17 (10.76%) Sparx
3 11 (6.96%) Salesforce.com
4 8 (5.06%) Microsoft
5 2 (1.27%) Xamarin