Period
to 14 June 2021

The following table provides summary statistics for permanent job vacancies advertised in the City of London with a requirement for API Integration skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited API Integration over the 6 months to 14 June 2021 with a comparison to the same period in the previous 2 years.

API Integration
Central London > City of London
6 months to
14 Jun 2021
Same period 2020 Same period 2019
Rank 195 225 294
Rank change year-on-year +30 +69 -10
Permanent jobs citing API Integration 42 29 42
As % of all permanent jobs advertised in the City of London 0.81% 0.46% 0.42%
As % of the Processes & Methodologies category 0.85% 0.49% 0.45%
Number of salaries quoted 39 18 40
10th Percentile £37,500 " £51,175
25th Percentile £59,375 £46,250 £51,250
Median annual salary (50th Percentile) £72,500 £62,500 £58,750
Median % change year-on-year +16.00% +6.38% -9.62%
75th Percentile £77,500 £77,500 £67,500
90th Percentile " £102,500 £85,500
Central London median annual salary £72,500 £67,500 £65,000
% change year-on-year +7.41% +3.85% -

API Integration 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 4,928 5,965 9,379
As % of all permanent IT jobs advertised in the City of London 95.14% 94.25% 93.30%
Number of salaries quoted 4,381 5,224 8,364
10th Percentile £43,750 £41,250 £37,500
25th Percentile £55,000 £52,500 £50,000
Median annual salary (50th Percentile) £72,500 £70,000 £65,000
Median % change year-on-year +3.57% +7.69% +4.00%
75th Percentile £90,000 £85,000 £82,500
90th Percentile £106,250 £100,000 £97,500
Central London median annual salary £70,000 £70,000 £65,000
% change year-on-year - +7.69% +8.33%

API Integration
Job Vacancy Trend in the City of London

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

Job vacancy trend for API Integration in the City of London

API Integration
Salary Trend in the City of London

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

Salary trend for API Integration in the City of London

API Integration
Salary Histogram in the City of London

Salary distribution for jobs citing API Integration in the City of London over the 6 months to 14 June 2021.

Salary histogram for API Integration in the City of London

For the 6 months to 14 June 2021, IT jobs citing API Integration 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 API Integration.

1 25 (59.52%) Web Services
1 25 (59.52%) Azure
2 22 (52.38%) C#
2 22 (52.38%) SQL
3 21 (50.00%) DevOps
4 20 (47.62%) .NET
5 19 (45.24%) Microservices
5 19 (45.24%) NoSQL
6 18 (42.86%) Data Integration
7 17 (40.48%) TDD
7 17 (40.48%) Software Engineering
7 17 (40.48%) OO
7 17 (40.48%) SOLID
7 17 (40.48%) Serverless
7 17 (40.48%) Azure Functions
8 16 (38.10%) .NET Core
8 16 (38.10%) Azure Service Bus
8 16 (38.10%) Azure Service Fabric
8 16 (38.10%) Azure App Service
8 16 (38.10%) Azure Event Grid
8 16 (38.10%) Azure SQL Database
8 16 (38.10%) NuGet
8 16 (38.10%) Docker
8 16 (38.10%) BDD
8 16 (38.10%) Kubernetes
8 16 (38.10%) ERP
8 16 (38.10%) Migration
8 16 (38.10%) Software Testing
8 16 (38.10%) Data Migration
9 13 (30.95%) JavaScript

API Integration
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 2 (4.76%) Elasticsearch
1 2 (4.76%) Mendix
Cloud Services
1 25 (59.52%) Azure
2 17 (40.48%) Azure Functions
2 17 (40.48%) Serverless
3 16 (38.10%) Azure App Service
3 16 (38.10%) Azure Event Grid
3 16 (38.10%) Azure Service Bus
3 16 (38.10%) Azure Service Fabric
3 16 (38.10%) NuGet
4 2 (4.76%) Azure Data Factory
5 1 (2.38%) AWS
5 1 (2.38%) Azure Synapse Analytics
5 1 (2.38%) Snowflake
Communications & Networking
1 4 (9.52%) TCP/IP
Database & Business Intelligence
1 19 (45.24%) NoSQL
2 16 (38.10%) Azure SQL Database
3 9 (21.43%) Relational Database
4 3 (7.14%) SQL Server
5 2 (4.76%) PostgreSQL
6 1 (2.38%) Amazon Redshift
6 1 (2.38%) Data Lake
General
1 4 (9.52%) Finance
1 4 (9.52%) Social Skills
2 2 (4.76%) Publishing
Job Titles
1 15 (35.71%) Developer
2 10 (23.81%) Salesforce Developer
3 9 (21.43%) C# Software Engineer
3 9 (21.43%) Server Engineer
3 9 (21.43%) Serverless Engineer
3 9 (21.43%) Software Engineer
4 5 (11.90%) Customer Engineer
4 5 (11.90%) Integration Engineer
4 5 (11.90%) Junior
4 5 (11.90%) Junior Developer
4 5 (11.90%) Junior Salesforce Developer
5 4 (9.52%) .NET Developer
6 3 (7.14%) Consultant
7 2 (4.76%) Analyst
7 2 (4.76%) Analyst Programmer
7 2 (4.76%) C# Developer
7 2 (4.76%) Development Manager
7 2 (4.76%) Lead C# Developer
7 2 (4.76%) Lead Developer
7 2 (4.76%) Programmer
Libraries, Frameworks & Software Standards
1 25 (59.52%) Web Services
2 20 (47.62%) .NET
3 16 (38.10%) .NET Core
4 12 (28.57%) REST
5 9 (21.43%) Visualforce
6 6 (14.29%) CSS
6 6 (14.29%) HTML
7 5 (11.90%) FIX Protocol
8 4 (9.52%) CSS3
8 4 (9.52%) HTML5
8 4 (9.52%) Twitter Bootstrap
8 4 (9.52%) XML
9 3 (7.14%) AngularJS
9 3 (7.14%) JSON
10 2 (4.76%) Angular 2
10 2 (4.76%) Django
10 2 (4.76%) RESTful
Miscellaneous
1 9 (21.43%) Data Structures
2 4 (9.52%) Fixed Income
2 4 (9.52%) Greenfield Project
3 3 (7.14%) Self-Motivation
4 2 (4.76%) Enterprise Software
4 2 (4.76%) Mobile App
4 2 (4.76%) Reinsurance
4 2 (4.76%) User Experience
5 1 (2.38%) Housing Association
5 1 (2.38%) Public Cloud
Operating Systems
1 5 (11.90%) Linux
1 5 (11.90%) Unix
Processes & Methodologies
1 21 (50.00%) DevOps
2 19 (45.24%) Microservices
3 18 (42.86%) Data Integration
4 17 (40.48%) OO
4 17 (40.48%) Software Engineering
4 17 (40.48%) SOLID
4 17 (40.48%) TDD
5 16 (38.10%) BDD
5 16 (38.10%) Data Migration
5 16 (38.10%) ERP
5 16 (38.10%) Migration
5 16 (38.10%) Software Testing
6 10 (23.81%) Agile Software Development
7 9 (21.43%) CRM
7 9 (21.43%) Data Modelling
7 9 (21.43%) Fintech
7 9 (21.43%) SDLC
8 5 (11.90%) API Development
8 5 (11.90%) Electronic Trading
9 4 (9.52%) Scrum
Programming Languages
1 22 (52.38%) C#
1 22 (52.38%) SQL
2 13 (30.95%) JavaScript
3 9 (21.43%) Apex Code
3 9 (21.43%) SOQL
4 2 (4.76%) Java
4 2 (4.76%) Python
4 2 (4.76%) R
Quality Assurance & Compliance
1 4 (9.52%) QA
System Software
1 16 (38.10%) Docker
Systems Management
1 16 (38.10%) Kubernetes
Vendors
1 10 (23.81%) Salesforce.com
2 3 (7.14%) Microsoft
3 1 (2.38%) Databricks
3 1 (2.38%) Informatica
3 1 (2.38%) StreamSets