The following table provides summary statistics for permanent job vacancies advertised in London with a requirement for Esper skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited Esper over the 3 months to 26 March 2017 with a comparison to the same period in the previous 2 years.

3 months to
26 Mar 2017
Same period 2016 Same period 2015
EsperTech Esper/NEsper
England / London
Rank 574 626 636
Rank change year-on-year +52 +10  
Permanent jobs citing Esper 3 30 20
As % of all permanent IT jobs advertised in London 0.009% 0.072% 0.047%
As % of the Libraries, Frameworks & Software Standards category 0.023% 0.18% 0.13%
Number of salaries quoted 3 29 20
Median salary £60,000 £82,500 £60,000
Median salary % change year-on-year -27.27% +37.50%  
UK excluding London median salary - £61,250 £40,000
% change year-on-year - +53.12%  

Esper is in the industry standards, technical specifications and software library and framework skills category. The next table is for comparison with the above and provides summary statistics for all permanent job vacancies advertised in London with a requirement for industry standards, technical specifications and software library and framework skills.

Software Library & Framework Skills
London
Permanent job vacancies with a requirement for industry standards, technical specifications and software library and framework skills 13297 16747 15602
As % of all permanent IT job vacancies advertised in London 40.03% 39.93% 36.94%
Number of salaries quoted 11438 14622 13224
Median salary £57,500 £55,000 £54,000
Median salary % change year-on-year +4.54% +1.85%  
90% offered a salary of more than £37,500 £37,500 £35,000
10% offered a salary of more than £80,000 £72,500 £77,500
UK excluding London median salary £40,000 £42,500 £40,000
% change year-on-year -5.88% +6.25%  

Esper
Job Vacancy Trend in London

The job posting trend of jobs advertised in London citing Esper as a proportion of all permanent or contract IT jobs with a match in the Libraries, Frameworks & Software Standards category.

Job vacancy trend for Esper in London

Esper
Salary Trend in London

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

Salary trend for Esper in London

Esper
Salary Histogram in London

The salary distribution of IT jobs citing Esper in London over the 3 months to 26 March 2017.

Salary histogram for Esper in London

Esper
Top 30 Related IT Skills in London

For the 6 months to 26 March 2017, IT jobs citing Esper also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all job ads across the London region with a requirement for Esper.

1 6 (100.00%) Java
2 4 (66.67%) Computer Science
2 4 (66.67%) Finance
3 3 (50.00%) Python
3 3 (50.00%) J2SE
3 3 (50.00%) C#
3 3 (50.00%) C++
3 3 (50.00%) Degree
3 3 (50.00%) Mathematics
3 3 (50.00%) Physics
3 3 (50.00%) Banking
3 3 (50.00%) Maven
3 3 (50.00%) SciPy
3 3 (50.00%) NumPy
3 3 (50.00%) AngularJS
3 3 (50.00%) StreamBase
3 3 (50.00%) Pyramid
3 3 (50.00%) Pandas
4 2 (33.33%) Pair Programming
4 2 (33.33%) Algorithms
4 2 (33.33%) Data Acquisition
4 2 (33.33%) MongoDB
4 2 (33.33%) KDB
4 2 (33.33%) Visualisation
4 2 (33.33%) Open Source
4 2 (33.33%) Hedge funds
4 2 (33.33%) Front Office
4 2 (33.33%) C
4 2 (33.33%) OO
5 1 (16.67%) OOD

Esper
Top Related 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:

Database & Business Intelligence
1 2 (33.33%) KDB
1 2 (33.33%) MongoDB
Development Applications
1 3 (50.00%) Maven
General
1 4 (66.67%) Finance
2 3 (50.00%) Banking
3 2 (33.33%) Front Office
Job Titles
1 6 (100.00%) Developer
2 4 (66.67%) Senior Developer
3 3 (50.00%) Java Developer
3 3 (50.00%) Java Pricing Developer
3 3 (50.00%) Senior Java Developer
4 2 (33.33%) C# Developer
4 2 (33.33%) C++ Developer
5 1 (16.67%) C++/C# Developer
5 1 (16.67%) Python Developer
5 1 (16.67%) Senior C# Developer
Libraries, Frameworks & Software Standards
1 3 (50.00%) AngularJS
1 3 (50.00%) J2SE
1 3 (50.00%) NumPy
1 3 (50.00%) Pandas
1 3 (50.00%) Pyramid
1 3 (50.00%) SciPy
Miscellaneous
1 4 (66.67%) Computer Science
2 2 (33.33%) Algorithms
2 2 (33.33%) Hedge funds
3 1 (16.67%) Analytical Skills
3 1 (16.67%) Credit Risk
3 1 (16.67%) Data Structures
Operating Systems
1 1 (16.67%) Linux
Processes & Methodologies
1 3 (50.00%) Mathematics
1 3 (50.00%) Physics
2 2 (33.33%) Data Acquisition
2 2 (33.33%) OO
2 2 (33.33%) Open Source
2 2 (33.33%) Pair Programming
2 2 (33.33%) Visualisation
3 1 (16.67%) Agile Software Development
3 1 (16.67%) Continuous Integration
3 1 (16.67%) Credit Risk Modelling
3 1 (16.67%) Functional Programming
3 1 (16.67%) OOD
3 1 (16.67%) Refactoring
3 1 (16.67%) Software Engineering
3 1 (16.67%) Systematic Trading
3 1 (16.67%) TDD
Programming Languages
1 6 (100.00%) Java
2 3 (50.00%) C#
2 3 (50.00%) C++
2 3 (50.00%) Python
3 2 (33.33%) C
4 1 (16.67%) MATLAB
4 1 (16.67%) SQL
Qualifications
1 3 (50.00%) Degree
Vendors
1 3 (50.00%) StreamBase
2 1 (16.67%) Oracle