The table below looks at the statistics for Performance Tuning skills in IT contracts advertised for the Welwyn Garden City region. Included is a guide to the contractor rates offered in IT contracts that have cited Performance Tuning over the 3 months to 26 September 2016 with a comparison to the same period over the previous 2 years.

Note that daily contractor rates and hourly contractor rates are treated separately. When calculating average contractor rates, daily rates are not derived from quoted hourly rates or vice versa.

3 months to
26 Sep 2016
Same period 2015 Same period 2014
Performance Tuning
Rank 15 13 13
Rank change year-on-year
-2 0
Contract jobs citing Performance Tuning 4 3 3
As % of all contract IT jobs located in Welwyn Garden City 4.60% 5.66% 5.08%
As % of the Processes & Methodologies category 5.19% 6.67% 6.67%
Number of daily rates quoted 4 1 2
Median daily rate £274 £310 £400
Median daily rate % change year-on-year
-11.69% -22.50%
UK excluding London median daily rate £380 £375 £350
% change year-on-year
+1.33% +7.14%
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £40.00 £42.50 £45.00
% change year-on-year
-5.88% -5.55%
Performance Tuning
Hertfordshire

The following table is for comparison with the above and provides statistics for the entire Processes & Methodologies category in contract jobs advertised in the Welwyn Garden City region.

Processes & Methodologies Category
Welwyn Garden City
Contract IT job ads with a match in the
Processes & Methodologies category
77 45 45
As % of all contract IT jobs located in Welwyn Garden City 88.51% 84.91% 76.27%
Number of daily rates quoted 50 17 21
Median daily rate £425 £438 £333
Median daily rate % change year-on-year
-2.85% +31.57%
90% offered a daily rate of more than £260 £310 £150
10% offered a daily rate of more than £625 £600 £460
UK excluding London median daily rate £400 £400 £375
% change year-on-year
- +6.66%
Number of hourly rates quoted 1 2 4
Median hourly rate £31.00 £155.00 £16.20
Median hourly rate % change year-on-year
-80.00% +856.79%
UK excluding London median hourly rate £32.50 £33.64 £26.00
% change year-on-year
-3.38% +29.38%

Performance Tuning
Jobs Demand Trend in Welwyn Garden City

The demand trend of contract jobs across the Welwyn Garden City region citing Performance Tuning as a proportion of all IT contracts with a match in the Processes & Methodologies category.

Performance Tuning Jobs Demand Trend in Welwyn Garden City

Performance Tuning
Daily Rate Trend in Welwyn Garden City

This chart provides the 3-month moving average for daily rates quoted in IT contract jobs citing Performance Tuning across the Welwyn Garden City region.

Performance Tuning Daily Rate Trend in Welwyn Garden City

Performance Tuning
Top 30 Related IT Skills in Welwyn Garden City

For the 6 months to 26 September 2016, IT contractor jobs citing Performance Tuning 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 Welwyn Garden City region with a requirement for Performance Tuning.

1 8 (88.89%) SQL
2 7 (77.78%) Oracle
2 7 (77.78%) Data Warehouse
2 7 (77.78%) ETL
2 7 (77.78%) Informatica
2 7 (77.78%) Unit Testing
2 7 (77.78%) Agile Software Development
2 7 (77.78%) Oracle Database
3 6 (66.67%) Relational Database
3 6 (66.67%) Data Mart
3 6 (66.67%) Data Quality
3 6 (66.67%) Dimensional Modelling
3 6 (66.67%) PowerCenter
3 6 (66.67%) ERwin
3 6 (66.67%) RDBMS
4 5 (55.56%) Validation
4 5 (55.56%) Data Extraction
4 5 (55.56%) Data Transformation
5 4 (44.44%) Pharmaceutical
6 2 (22.22%) VMware
6 2 (22.22%) SAN
6 2 (22.22%) SQL Server
6 2 (22.22%) Web Services
6 2 (22.22%) SQL Server 2005
6 2 (22.22%) Database Mirroring
6 2 (22.22%) VMware Infrastructure
7 1 (11.11%) Windows Server 2008
7 1 (11.11%) Windows Server
7 1 (11.11%) ITIL
7 1 (11.11%) Windows

Performance Tuning
Top Related IT Skills in Welwyn Garden City 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 1 (11.11%) BizTalk Server
Communications & Networking
1 2 (22.22%) SAN
Database & Business Intelligence
1 7 (77.78%) Data Warehouse
1 7 (77.78%) Oracle Database
2 6 (66.67%) Data Mart
2 6 (66.67%) PowerCenter
2 6 (66.67%) RDBMS
2 6 (66.67%) Relational Database
3 2 (22.22%) SQL Server
3 2 (22.22%) SQL Server 2005
Development Applications
1 6 (66.67%) ERwin
General
1 4 (44.44%) Pharmaceutical
Job Titles
1 7 (77.78%) Developer
1 7 (77.78%) Oracle Developer
2 6 (66.67%) Informatica Developer
3 2 (22.22%) DBA
3 2 (22.22%) SQL DBA
3 2 (22.22%) SQL Server DBA
4 1 (11.11%) ETL Developer
4 1 (11.11%) Oracle ETL Developer
Libraries, Frameworks & Software Standards
1 2 (22.22%) Web Services
Miscellaneous
1 5 (55.56%) Data Extraction
Operating Systems
1 1 (11.11%) Windows
1 1 (11.11%) Windows Server
1 1 (11.11%) Windows Server 2008
Processes & Methodologies
1 7 (77.78%) Agile Software Development
1 7 (77.78%) ETL
1 7 (77.78%) Unit Testing
2 6 (66.67%) Dimensional Modelling
3 5 (55.56%) Data Transformation
3 5 (55.56%) Validation
4 2 (22.22%) Database Mirroring
5 1 (11.11%) ITIL
Programming Languages
1 8 (88.89%) SQL
Quality Assurance & Compliance
1 6 (66.67%) Data Quality
System Software
1 2 (22.22%) VMware Infrastructure
Vendors
1 7 (77.78%) Informatica
1 7 (77.78%) Oracle
2 2 (22.22%) VMware