The table below looks at the prevalence of the term N-Tier in contract job vacancies advertised in the City of London. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited N-Tier over the 3 months to 27 March 2017 with a comparison to the same period over the previous 2 years.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

N-Tier
London / City of London
3 months to
27 Mar 2017
Same period 2016 Same period 2015
Rank 154 156 186
Rank change year-on-year +2 +30  
Contract jobs citing N-Tier 1 2 8
As % of all contract IT jobs advertised in the City of London 0.033% 0.060% 0.15%
As % of the Miscellaneous category 0.091% 0.17% 0.42%
Number of daily rates quoted 1 2 5
Median daily rate £450 £513 £500
Median daily rate % change year-on-year -12.19% +2.50%  
UK excluding London median daily rate £394 £350 £350
% change year-on-year +12.50% -  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate - - £125.00

N-Tier is in the generic IT skills category. The next table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in the City of London with a requirement for generic IT skills.

Generic IT Skills
City of London
Contract job vacancies with a requirement for generic IT skills 1093 1200 1884
As % of all contract IT job vacancies advertised in the City of London 36.25% 36.08% 36.43%
Number of daily rates quoted 842 952 1436
Median daily rate £525 £500 £470
Median daily rate % change year-on-year +5.00% +6.38%  
90% offered a daily rate of more than £300 £318 £290
10% offered a daily rate of more than £650 £658 £625
UK excluding London median daily rate £395 £375 £375
% change year-on-year +5.33% -  
Number of hourly rates quoted 8 27 36
Median hourly rate £19.00 £19.00 £17.87
Median hourly rate % change year-on-year - +6.35%  
90% offered a hourly rate of more than £13.79 £12.00 £12.73
10% offered a hourly rate of more than £28.35 £35.60 £27.37
UK excluding London median hourly rate £18.68 £27.75 £18.75
% change year-on-year -32.68% +48.00%  

N-Tier
Job Vacancy Trend in the City of London

The job posting trend of jobs advertised in the City of London citing N-Tier as a proportion of all contract or permanent IT jobs with a match in the Miscellaneous category.

Job vacancy trend for N-Tier in the City of London

N-Tier
Contractor Daily Rate Trend in the City of London

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing N-Tier in the City of London.

Contractor daily rate trend for N-Tier in the City of London

N-Tier
Contractor Hourly Rate Trend in the City of London

This chart provides the 3-month moving average for hourly rates quoted in IT contractor jobs citing N-Tier in the City of London.

Contractor hourly rate trend for N-Tier in the City of London

N-Tier
Top 30 Co-occurring IT Skills in the City of London

For the 6 months to 27 March 2017, IT contractor jobs citing N-Tier also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads across the City of London region with a requirement for N-Tier.

1 10 (76.92%) Java
2 9 (69.23%) Spring
2 9 (69.23%) Web Services
3 8 (61.54%) SQL
3 8 (61.54%) Finance
3 8 (61.54%) Banking
4 6 (46.15%) Agile Software Development
4 6 (46.15%) Credit Risk
4 6 (46.15%) Oracle
5 5 (38.46%) SQL Server
5 5 (38.46%) Ant
5 5 (38.46%) J2EE
5 5 (38.46%) SOAP
5 5 (38.46%) Windows
5 5 (38.46%) Grid Computing
5 5 (38.46%) JBoss
5 5 (38.46%) Maven
5 5 (38.46%) REST
5 5 (38.46%) Jenkins
6 4 (30.77%) SoapUI
6 4 (30.77%) Web Development
6 4 (30.77%) Selenium
7 3 (23.08%) Online Banking
7 3 (23.08%) Project Planning
7 3 (23.08%) Team Foundation Server
7 3 (23.08%) CruiseControl
7 3 (23.08%) Subversion
7 3 (23.08%) TDD
7 3 (23.08%) NUnit
7 3 (23.08%) ClearCase

N-Tier
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 5 (38.46%) JBoss
Communications & Networking
1 3 (23.08%) Internet
Database & Business Intelligence
1 5 (38.46%) SQL Server
Development Applications
1 5 (38.46%) Ant
1 5 (38.46%) Jenkins
1 5 (38.46%) Maven
2 4 (30.77%) Selenium
2 4 (30.77%) SoapUI
3 3 (23.08%) ClearCase
3 3 (23.08%) CruiseControl
3 3 (23.08%) NUnit
3 3 (23.08%) Subversion
3 3 (23.08%) Team Foundation Server
General
1 8 (61.54%) Banking
1 8 (61.54%) Finance
2 3 (23.08%) Financial Institution
3 2 (15.38%) Front Office
3 2 (15.38%) Retail
3 2 (15.38%) Retail Banking
Job Titles
1 13 (100.00%) Developer
2 10 (76.92%) Java Developer
3 5 (38.46%) Senior Developer
3 5 (38.46%) Senior Java Developer
4 4 (30.77%) Credit Risk Developer
4 4 (30.77%) Credit Risk Java Developer
5 2 (15.38%) C++ Developer
5 2 (15.38%) Electronic Trading C++ Developer
5 2 (15.38%) Electronic Trading Developer
5 2 (15.38%) Java Web Developer
5 2 (15.38%) Senior Credit Risk Java Developer
5 2 (15.38%) Senior SQL Developer
5 2 (15.38%) SQL Developer
5 2 (15.38%) Web Developer
6 1 (7.69%) Agile Java Developer
6 1 (7.69%) J2EE Developer
6 1 (7.69%) Java/J2EE Developer
6 1 (7.69%) Mobile Developer
6 1 (7.69%) Senior Java Web Developer
6 1 (7.69%) Senior Web Developer
Libraries, Frameworks & Software Standards
1 9 (69.23%) Spring
1 9 (69.23%) Web Services
2 5 (38.46%) J2EE
2 5 (38.46%) REST
2 5 (38.46%) SOAP
3 3 (23.08%) CSS
3 3 (23.08%) CSS3
3 3 (23.08%) HTML
3 3 (23.08%) HTML5
4 2 (15.38%) Boost C++ Libraries
4 2 (15.38%) Spring Security
4 2 (15.38%) STL
5 1 (7.69%) Apache Camel
5 1 (7.69%) jQuery
5 1 (7.69%) JSP
5 1 (7.69%) Middleware
Miscellaneous
1 6 (46.15%) Credit Risk
2 5 (38.46%) Grid Computing
3 3 (23.08%) Online Banking
4 2 (15.38%) Algorithms
4 2 (15.38%) Foreign Exchange (FX)
5 1 (7.69%) Market Risk
5 1 (7.69%) Mobile App
5 1 (7.69%) User Experience
Operating Systems
1 5 (38.46%) Windows
2 2 (15.38%) Unix
3 1 (7.69%) Apple iOS
3 1 (7.69%) Linux
Processes & Methodologies
1 6 (46.15%) Agile Software Development
2 4 (30.77%) Web Development
3 3 (23.08%) BDD
3 3 (23.08%) Change Management
3 3 (23.08%) DevOps
3 3 (23.08%) Open Source
3 3 (23.08%) Project Planning
3 3 (23.08%) Scrum
3 3 (23.08%) SDLC
3 3 (23.08%) SOA
3 3 (23.08%) TDD
4 2 (15.38%) Algorithmic Trading
4 2 (15.38%) Automation Testing
4 2 (15.38%) Electronic Trading
4 2 (15.38%) High Availability
4 2 (15.38%) Low Latency
4 2 (15.38%) Mobile Development
4 2 (15.38%) Multithreading
4 2 (15.38%) Risk Management
5 1 (7.69%) E-Commerce
Programming Languages
1 10 (76.92%) Java
2 8 (61.54%) SQL
3 2 (15.38%) C++
4 1 (7.69%) Apple Swift
4 1 (7.69%) JavaScript
4 1 (7.69%) Objective-C
Qualifications
1 1 (7.69%) Degree
Quality Assurance & Compliance
1 1 (7.69%) MiFID
Vendors
1 6 (46.15%) Oracle
2 1 (7.69%) Cognizant
2 1 (7.69%) Solace